Teaching practical training examination device for elevator safety tongs

Abstract

The utility model discloses a teaching practical training examination device for elevator safety tongs, which comprises a rack and a guide rail arranged on the rack, and further comprises a car frame which is fixedly arranged on the rack, and a guide shoe is arranged between the car frame and the guide rail; the safety tongs are arranged on the guide rails and fixedly connected with the car frame, and the safety tongs can be matched with the guide rails in a clamping or loosening mode; and the operating mechanism comprises an operating arm connected with the safety tongs, so that when the operating arm acts, the safety tongs can clamp the guide rail or loosen from the guide rail. According to the utility model, a beginner can conveniently and visually see the working process of the safety tongs, and the problem that an existing elevator safety tongs teaching practical training device has uncertain danger of falling from a high place during operation is solved; the elevator safety tongs teaching practical training device solves the problem that the existing elevator safety tongs teaching practical training device can only see the instant braking result of the action of the safety tongs, but cannot visually see the working principle and the working process of the safety tongs block.

Description

Technical Field

[0001] This utility model relates to the field of teaching, training and assessment technology, and more specifically, to a teaching, training and assessment device for elevator safety clamps. Background Technology

[0002] In recent years, with the rapid development of my country's elevator industry, the demand for professional talents has been increasing day by day. Therefore, the training of elevator professionals is facing new challenges, and the requirements for professional teaching and training equipment are also getting higher and higher.

[0003] The patent, with patent number "201920642366.7" and titled "Safety Gear Assembly for a Teaching Elevator," describes a safety gear assembly structure for a teaching elevator. The teaching elevator system includes a frame structure, a car guide rail mounted on the frame structure, and a simulated car located inside the car guide rail and capable of vertical movement along it. The safety gear assembly includes a hinged bracket assembly hinged to the upper end of the simulated car, a locking seat with a trapezoidal locking groove located inside the car guide rail and capable of vertical movement along it, and a locking block embedded in the trapezoidal locking groove and connected to the outer end of the hinged bracket assembly via a steel wire rope. The locking seat is fixed to the bottom of the simulated car. As the locking block gradually moves upward, it presses against the inner end of the car guide rail within the trapezoidal locking groove until the locking seat, locking block, and inner end of the car guide rail stop moving relative to each other, thus achieving an emergency stop and preventing a fall.

[0004] The above-mentioned design is simple and basically reflects the working principle of elevator safety gear. However, as a teaching and training device, the operation of this structure from a height poses a high operational risk to beginners. Because it is a fall from a height, beginners can only see the instantaneous stopping result of the safety gear's action, and cannot have a full and intuitive view of the safety gear's working process. In addition, the structure occupies a large space, making it difficult to meet the teaching needs of a large number of people. Summary of the Invention

[0005] This utility model overcomes the shortcomings of the prior art. Its structure is reasonably designed and provides a teaching and training device that can avoid the uncertain dangers caused by the safety clamp mechanism falling from a height. It can also fully and safely demonstrate the working principle and process of the safety clamp. It can also safely perform installation, adjustment and other maintenance training operations on the safety clamp structure. At the same time, under the premise of exquisite structure, it provides a small size and easy to transport and move, which can meet the teaching needs of multiple groups of people.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A teaching, training, and assessment device for elevator safety gear includes a frame and guide rails mounted on the frame, and further includes:

[0008] The car frame is fixedly installed on the frame, and a guide shoe is arranged between the car frame and the guide rail;

[0009] The safety hook is arranged on the guide rail and fixedly connected with the car frame, and can be clamped with or separated from the guide rail;

[0010] The operating mechanism comprises an operating arm connected with the safety hook, so that the safety hook can clamp or separate from the guide rail when the operating arm operates.

[0011] Preferably, a protection switch is arranged on the car frame, and the protection switch can be closed or opened when the operating arm operates.

[0012] Preferably, the operating arm realizes the closing or opening of the protection switch through a trigger assembly.

[0013] Preferably, the trigger assembly comprises a rotating shaft connected with the operating arm, a trigger block arranged on the rotating shaft, and a rotating spring for resetting the rotating shaft.

[0014] Preferably, the protection switch is provided with a touch wheel abutting against the trigger block and capable of controlling the closing or opening of the protection switch.

[0015] Preferably, the operating mechanism further comprises an operating rod hinged to the car frame, a connecting shaft connected with the operating rod, a first joint bearing connected with the connecting shaft, a connecting rod connected with the first joint bearing, and a second joint bearing respectively connected with the operating arm and the connecting rod.

[0016] Preferably, the guide rail is a T-shaped guide rail, and recesses are arranged on both sides of the T-shaped guide rail away from the safety hook.

[0017] Preferably, the bottom of the frame is provided with a rolling wheel.

[0018] The elevator safety hook teaching and training device can enable beginners to intuitively observe the working process of the safety hook, solve the problem of uncertain danger of falling from a high place during operation of the existing elevator safety hook teaching and training device, enable beginners to intuitively observe the working principle and process of the safety hook block, and solve the problem that the existing elevator safety hook teaching and training device occupies a large space and is difficult to meet the teaching or examination needs of one person using one device. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure of the specific embodiment of the utility model Figure One ;

[0020] Figure 2 The structure of the specific embodiment of the utility model Figure Two ;

[0021] Figure 3 The structure diagram of the embodiment of the utility model reflects the structure without the rack Figure One .

[0022] Figure 4 The structure diagram of the embodiment of the utility model reflects the structure without the rack Figure Two .

[0023] In the figure: 1, rack; 2, guide rail; 21, groove; 3, car frame; 4, guide shoe; 5, safety gear; 6, operating mechanism; 61, operating arm; 62, operating rod; 63, connecting shaft; 64, first joint bearing; 65, connecting rod; 66, second joint bearing; 7, protection switch; 71, touch wheel; 8, trigger assembly; 81, rotating shaft; 82, trigger block; 83, rotating spring; 9, roller. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] As Figures 1-4 shown in the figure, a kind of elevator safety gear's teaching practical training examination device, including rack 1 and being located on the guide rail 2 of rack 1, still include: car frame 3, it is fixedly installed in rack 1, and it is arranged between car frame 3 and guide rail 2 with guide shoe 4;Safety gear 5, it is located on guide rail 2 and is fixedly connected with car frame 3, and it can be clamped or loose cooperation with guide rail 2;Operating mechanism 6, it includes operating arm 61 connected with safety gear 5, so that safety gear 5 can be clamped or loose with guide rail 2 when operating arm 61 act, car frame 3 is provided with protection switch 7, operating arm 61 can trigger protection switch 7 to close or open when act;Operating arm 61 realizes the closing or disconnection of protection switch 7 by trigger assembly 8;Trigger assembly 8 includes rotating shaft 81 linked with operating arm 61, trigger block 82 arranged on rotating shaft 81 and rotating spring 83 for rotating reset of rotating shaft 81;Protection switch 7 is provided with touch wheel 71 and can control protection switch 7 to close or disconnect by being contacted with trigger block 82;Operating mechanism 6 also includes operating rod 62 articulated in car frame 3, connecting shaft 63 connected with operating rod 62, first joint bearing 64 connected with connecting shaft 63, connecting rod 65 connected with first joint bearing 64 and second joint bearing 66 connected operating arm 61 and connecting rod 65 respectively;Guide rail 2 is configured as T-shaped guide rail 2, and the two sides of the side of T-shaped guide rail 2 away from safety gear 5 are provided with groove 21;The bottom of rack 1 is provided with roller 9.

[0026] By adopting the technical scheme, in the utility model, the car frame 3 is fixed on the frame 1, so when the safety clamp 5 is actuated by the actuating mechanism 6, the actuation process of the safety clamp 5 can be completely observed. Among them, by operating the actuating arm 61 to lift, the safety clamp 5 clamps the guide rail 2, so as to realize the clamping action. The safety clamp 5 can be a clamping structure, as long as it can realize the clamping and loosening action of the guide rail 2, and the safety clamp 5 can be provided with two on both sides of the car frame 3, and one safety clamp 5 is provided in the embodiment.

[0027] Specifically, by setting the actuating mechanism 6, pressing the actuating rod 62 downward, the actuating arm 61 will be lifted. And by setting the trigger assembly 8 and the protection switch 7, the rotating shaft 81 of the trigger assembly 8 is connected with the end of the actuating arm 61 away from the safety clamp 5, so when the actuating arm 61 is lifted, the rotating shaft 81 rotates, the trigger block 82 is in contact with the trigger wheel 71, and the protection switch 7 is actuated. Among them, the rotating shaft 81 rotates to store energy in the rotating spring 83, and provides a force for resetting the actuating arm 61.

[0028] Furthermore, by setting the guide rail 2 as a T-shaped guide rail 2 and the two side grooves 21, it is convenient to adjust the safety clamp 5 and observe the specific action of the safety clamp 5, and reduce the problem of visual obstruction during teaching.

[0029] And by setting the roller 9 at the bottom of the frame 1, specifically, the roller 9 is a foma caster, which can be adjusted in height, convenient to move and fix.

[0030] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A teaching and training assessment device for elevator safety clamps, comprising a frame (1) and a guide rail (2) mounted on the frame (1), characterized in that, Also includes: The car frame (3) is fixedly installed on the frame (1), and a guide shoe (4) is provided between it and the guide rail (2); Safety clamp (5) is mounted on guide rail (2) and fixedly connected to car frame (3), and can be clamped or loosened with guide rail (2); The operating mechanism (6) includes an operating arm (61) connected to the safety clamp (5) so that when the operating arm (61) is actuated, the safety clamp (5) can clamp or release the guide rail (2).

2. The teaching, training, and assessment device for elevator safety clamps according to claim 1, characterized in that, A protective switch (7) is installed on the car frame (3). When the operating arm (61) moves, the protective switch (7) can be triggered to close or open.

3. The teaching, training, and assessment device for elevator safety clamps according to claim 2, characterized in that, The operating arm (61) closes or opens the protective switch (7) via the trigger assembly (8).

4. The teaching, training, and assessment device for elevator safety clamps according to claim 3, characterized in that, The trigger assembly (8) includes a rotating shaft (81) linked to the operating arm (61), a trigger block (82) disposed on the rotating shaft (81), and a rotating spring (83) for rotating and resetting the rotating shaft (81).

5. The teaching, training, and assessment device for elevator safety clamps according to claim 4, characterized in that, The protective switch (7) is provided with a trigger wheel (71) that abuts against the trigger block (82) and can control the protective switch (7) to close or open.

6. A teaching, training, and assessment device for elevator safety clamps according to claim 1, 2, 3, 4, or 5, characterized in that, The operating mechanism (6) also includes an operating lever (62) hinged to the car frame (3), a connecting shaft (63) connected to the operating lever (62), a first joint bearing (64) connected to the connecting shaft (63), a connecting rod (65) connected to the first joint bearing (64), and a second joint bearing (66) connecting the operating arm (61) and the connecting rod (65) respectively.

7. The teaching, training, and assessment device for elevator safety clamps according to claim 6, characterized in that, The guide rail (2) is configured as a T-shaped guide rail (2), and grooves (21) are provided on both sides of the side of the T-shaped guide rail (2) away from the safety clamp (5).

8. The teaching, training, and assessment device for elevator safety clamps according to claim 6, characterized in that, The bottom of the frame (1) is provided with rollers (9).

Images