Secondary transmission type lifting structure with low height requirement

Abstract

The utility model provides a secondary transfer type low height requirement lift structure, lift structure includes driving lift structure, driven lift structure, coupling body and safety tongs, the driving lift structure has driving lift end and is connected with trigger device, driving lift structure is connected with driven lift structure through coupling body, and the safety tongs is connected with the driven lift structure through the coupling body. The driving lifting structure is connected with the driven lifting structure and drives the driven lifting structure to swing synchronously, the driven lifting structure is connected with the safety tongs, and the driving lifting structure, the driven lifting structure and the connecting body are all fixedly installed on the car bottom bracket and do not exceed the height range of the car bottom bracket. The lifting structure is a two-stage transmission structure, the height of the whole lifting working structure does not exceed the height of the car bottom bracket, interference of the structure can be effectively avoided, the working stability of the structure is good, and the lifting structure is suitable for being used in an elevator structure with the high space requirement.

Description

Technical Field

[0001] The utility model relates to an improvement on the driving structure of an elevator safety device, in particular to a secondary transmission type lifting structure with low height requirement. Background Art

[0002] As a special equipment, the elevator is equipped with a variety of safety devices, among which the safety clamp is a safety device that works by interacting with the elevator guide rails and is used to limit the movement of the car. When the system detects abnormal displacement of the car, the safety clamp can be driven to clamp the safety clamp and the guide rails to each other, thereby limiting the movement of the car. The safety clamp is usually fixed to the car and works in conjunction with the drive structure. The conventional drive structure requires a longer hinged rod and the rotation requires angular movement. Therefore, the overall drive structure requires a higher working range and requires more space for elevator installation and operation. It is not suitable for environments with high space requirements, so it needs to be improved. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a secondary transfer type lifting structure with low height requirements.

[0004] The technical solution adopted by the utility model to solve the above problems is: the lifting structure includes an active lifting structure, a driven lifting structure, a coupling body and a safety clamp, the active lifting structure has an active lifting end and is connected to the trigger device, the active lifting structure is connected to the driven lifting structure through the coupling body, and drives the driven lifting structure to swing synchronously, the driven lifting structure is connected to the safety clamp, the active lifting structure, the driven lifting structure and the coupling body are all fixedly mounted on the car bottom bracket and do not exceed the height range of the car bottom bracket. The lifting structure is a two-level transmission structure, and the height of the overall lifting working structure does not exceed the height of the car bottom bracket, which can effectively avoid structural interference, and the structure has good working stability, which is suitable for use in elevator structures with high space requirements.

[0005] Furthermore, the active lifting structure includes a lifting slide, an active swing rod, a primary rotating rod and an axle rotating seat, the end of the primary rotating rod is rotatably connected to the axle rotating seat, the axle rotating seat is fixed to the bottom bracket of the car, a main swing rod is fixed to the primary rotating rod without relative rotation, the main swing rod is connected to the lifting slide, the lifting slide has an active lifting end, the lifting slide moves linearly and drives the main swing rod to swing. The lifting slide is the starting position of the action, and the main lifting structure mainly forms a rotating working angle to achieve the forward extension of the function.

[0006] Furthermore, the active swing arm is provided with an angle limiter, which includes a protrusion and a trigger device, wherein the protrusion is fixed or formed on the surface of the active swing arm, and the trigger device is fixed on the bottom bracket of the car, and the protrusion contacts the trigger device as the active swing arm rotates. The angle limiter can prevent the working angle of the main swing arm from exceeding the safety range, and can effectively improve the safety of the structure. After being triggered, the trigger device can form a safety loop to avoid unsafe actions.

[0007] Furthermore, the driven lifting structure includes a secondary rotating rod, a working swing rod, and a return spring. The secondary rotating rod is rotatably inserted into the car bottom bracket. The return spring is sleeved on the secondary rotating rod without relative rotation. The return spring has a plug and is plugged into the car bottom bracket at a fixed angle. The working swing rod is fixed to the end of the secondary rotating rod and connected to the safety clamp. There are multiple holes for the plug to be plugged in, which are arranged at different angles. The plugging at different angles has different rebound forces, and different working tensions of the spring can be adjusted. The secondary rotating rod controls the safety clamp on both sides of the car at the same time, and brakes on both sides at the same time to improve safety.

[0008] Furthermore, the coupling body includes a connecting rod and a swinging body, and the swinging body is fixed on the primary rotating rod and the secondary rotating rod respectively without relative rotation, and the connecting rod is rotatably connected on the swinging bodies of the two, and the connecting rod keeps the relative distance between the two swinging bodies consistent. The connecting rod and the swinging body form a linkage structure, which transmits the action of the primary rotating rod to the secondary swinging rod, realizes the function transmission of a certain distance, and sets the transmission direction horizontally to reduce the height requirement of the work.

[0009] Compared with the prior art, the utility model has the following advantages and effects: the design is a lifting structure for the operation of the safety clamp, which is fixed as a whole in the structural space of the car bottom bracket, and the overall working height is low, which can adapt to the space limitation of the car bottom. The lifting structure has good working reliability, its own structural rigidity is reliable, and the function of the safety device can be effectively realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the lifting structure.

[0011] Figure 2 It is a schematic diagram of the structure in the side direction.

[0012] Figure 3 It is a schematic diagram of the structure in the other side direction.

[0013] In the figure: 1, active lifting structure, 2, driven lifting structure, 3, connecting body, 4, safety clamp, 5, active lifting end, 6, car bottom bracket, 7, lifting slide, 8, active swing arm, 9, primary rotating rod, 10, shaft rotating seat, 11, angle limiting device, 12, secondary rotating rod, 13, working swing arm, 14, return spring, 15, plug, 16, connecting rod, 17, swing body. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0015] A secondary transmission type lifting structure with low height requirement, the lifting structure includes an active lifting structure 1, a driven lifting structure 2, a connecting body 3 and a safety clamp 4, the active lifting structure 1 has an active lifting end 5 and is connected to a trigger device, the active lifting structure 1 is connected to the driven lifting structure 2 through the connecting body 3, and drives the driven lifting structure 2 to swing synchronously, the driven lifting structure 2 is connected to the safety clamp 4, the active lifting structure 1, the driven lifting structure 2, and the connecting body 3 are all fixedly mounted on a car bottom bracket 6, and do not exceed the height range of the car bottom bracket 6.

[0016] The active lifting structure 1 includes a lifting slide 7, an active swing rod 8, a primary rotating rod 9 and an axial rotating seat 10. The end of the primary rotating rod is rotatably connected to the axial rotating seat 10. The axial rotating seat 10 is fixed on the car bottom bracket 6. A main swing rod is fixed on the primary rotating rod 9 without relative rotation. The main swing rod is connected to the lifting slide 7. The lifting slide 7 has an active lifting end 5. The lifting slide 7 moves linearly and drives the main swing rod to swing.

[0017] The active swing arm 8 is provided with an angle limiting device 11, which includes a protrusion and a trigger device. The protrusion is fixed or formed on the surface of the active swing arm 8, and the trigger device is fixed on the car bottom bracket 6. The protrusion contacts the trigger device as the active swing arm 8 rotates.

[0018] The driven lifting structure 2 includes a secondary rotating rod 12, a working rocker arm 13, and a return spring 14. The secondary rotating rod 12 is rotatably inserted into the car bottom bracket 6. The return spring 14 is non-rotatably sleeved on the secondary rotating rod 12. The return spring 14 has a plug 15 and is inserted into the car bottom bracket 6 at a fixed angle. The working rocker arm 13 is fixed to the end of the secondary rotating rod 12 and connected to the safety clamp 4.

[0019] The coupling body 3 includes a connecting rod 16 and a swinging body 17. The swinging body 17 is fixed to the primary rotating rod 9 and the secondary rotating rod 12 respectively without relative rotation. The connecting rod 16 is rotatably connected to the swinging bodies 17 of the two, and the connecting rod 16 keeps the relative distance between the two swinging bodies 17 consistent.

[0020] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary rather than restrictive. The scope of the present invention is defined by the claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim involved.

[0021] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A secondary transfer type low height requirement lifting structure, characterized in that: The lifting structure comprises an active lifting structure (1), a passive lifting structure (2), a connecting body (3) and a safety clamp (4); the active lifting structure (1) has an active lifting end (5) and is connected to a trigger device; the active lifting structure (1) is connected to the passive lifting structure (2) through the connecting body (3) and drives the passive lifting structure (2) to swing synchronously; the passive lifting structure (2) is connected to the safety clamp (4); the active lifting structure (1), the passive lifting structure (2) and the connecting body (3) are all fixedly mounted on a car bottom bracket (6) and do not exceed the height range of the car bottom bracket (6).

2. The secondary transfer low-height lifting structure according to claim 1, characterized in that: The active lifting structure (1) comprises a lifting slide (7), an active swing rod (8), a primary rotating rod (9) and an axle rotating seat (10). The end of the primary rotating rod is rotatably connected to the axle rotating seat (10). The axle rotating seat (10) is fixed to the car bottom bracket (6). A main swing rod is fixed to the primary rotating rod (9) in a non-rotatable manner. The main swing rod is connected to the lifting slide (7). The lifting slide (7) has an active lifting end (5). The lifting slide (7) moves linearly and drives the main swing rod to swing.

3. The secondary transfer type low height requirement lifting structure according to claim 2, characterized in that: The active swing arm (8) is provided with an angle limiting device (11), which includes a protrusion and a trigger device. The protrusion is fixed or formed on the surface of the active swing arm (8), and the trigger device is fixed on the car bottom bracket (6). The protrusion contacts the trigger device as the active swing arm (8) rotates.

4. The secondary transfer low-height lifting structure according to claim 2, characterized in that: The driven lifting structure (2) comprises a secondary rotating rod (12), a working swing rod (13), and a return spring (14); the secondary rotating rod (12) is rotatably inserted into a car bottom bracket (6); a return spring (14) is sleeved on the secondary rotating rod (12) in a non-rotatable manner; the return spring (14) has a plug (15) and is plugged into the car bottom bracket (6) at a fixed angle; the working swing rod (13) is fixed to the end of the secondary rotating rod (12) and connected to the safety clamp (4).

5. The secondary transfer type low height requirement lifting structure according to claim 4, characterized in that: The coupling body (3) comprises a connecting rod (16) and a swinging body (17). The swinging body (17) is fixed on the primary rotating rod (9) and the secondary rotating rod (12) respectively without relative rotation. The connecting rod (16) is rotatably connected on the swinging bodies (17) of the two. The connecting rod (16) keeps the relative distance between the two swinging bodies (17) consistent.

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