CN210048324U

CN210048324U - Car bottom damping device

Info

Publication number: CN210048324U
Application number: CN201920076952.XU
Authority: CN
Inventors: 沈发俊; 沈倍倍; 沈晓燕; 薄建林
Original assignee: Tianao Elevator (china) Co Ltd
Current assignee: Tianao Elevator (china) Co Ltd
Priority date: 2019-01-17
Filing date: 2019-01-17
Publication date: 2020-02-11
Anticipated expiration: 2029-01-17

Abstract

The utility model provides a damping device at bottom of sedan-chair relates to elevator technical field. The utility model relates to a damping device at bottom of sedan-chair, comprising a fixing base plate, the rigid coupling is in the mount at PMKD center, the non-rigid coupling end of mount is equipped with first bolster, the mount is equipped with compressible section, still include the shock absorber support of swing joint in the non-rigid coupling end of mount, the shock absorber support is including the first perk end that can up-and-down reciprocating motion, the second perk end, still include one end rigid coupling in PMKD, other end swing joint is in the first elastic support mechanism of first perk end, first elastic support mechanism is including making the compressible bracing piece that first perk end perk and horizontal position are higher than second perk end, the reset spring of bracing piece is located to the cover. The utility model adopts step-by-step shock absorption, which has good shock absorption effect and is very stable; when the elevator car rises, the damping device can provide resilience force for the car, and the starting of the car is facilitated.

Description

Car bottom damping device

Technical Field

The utility model relates to an elevator technical field, concretely relates to damping device at bottom of sedan-chair.

Background

The elevator is a motor-powered vertical lift equipped with a box-like car for carrying people or goods in a multi-story building, and has a car which runs between at least two rows of vertical or rigid guide rails with an angle of inclination of less than 15 °. Usually, a steel wire rope is used for friction transmission, the steel wire rope bypasses a traction sheave, two ends of the steel wire rope are respectively connected with a car and a balance weight, and a motor drives the traction sheave to lift the car. The elevator requires safety and reliability, high conveying efficiency, accurate leveling, comfortable riding and the like. The basic parameters of the elevator mainly include rated load capacity, the number of passengers, rated speed, the overall dimension of the elevator car, the type of the hoistway, and the like. The elevator as a very convenient transportation tool is deeply involved in the daily life and work of people. The elevator frequently shuttles between floors, which brings great convenience for people to go out. As the pace of modern construction is accelerated, high-rise buildings in cities are more and more, and elevators become indispensable inter-floor transportation tools. However, when the conventional elevator is stopped at the bottom floor, the car vibrates, and the elevator rider is often unnecessarily scared.

Among the prior art elevator car's buffer is mostly the elastic component of rigid coupling in the car bottom, has obvious sense of vibration when the elevator descends, and general elevator can slow down when being about to touch to earth, then directly descend to the elastic component on, the buffering falls to the ground, and the bottom surface of whole car can produce with the elastic component contact simultaneously and vibrate the sense, starts at the elevator moreover, needs very big pulling force to pull up whole car in the time of the upward movement, can reduce the life of elevator.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a damping device at bottom of sedan-chair, sedan-chair bottom surface and damping device's contact surface crescent when reducing at the bottom of the sedan-chair can reduce and vibrate the sense.

The utility model relates to a damping device at bottom of sedan-chair, including PMKD, rigid coupling in the mount at PMKD center, the non-rigid coupling end of mount is equipped with first bolster, the mount is equipped with compressible section, still include swing joint in the shock absorber support of the non-rigid coupling end of mount, shock absorber support includes first perk end, the second perk end that can up-and-down reciprocating motion, still includes that one end rigid coupling is located PMKD, other end swing joint in the first elastic support mechanism of first perk end, first elastic support mechanism is including making the compressible bracing piece, the cover that first perk end perk and horizontal position are higher than the second perk end are located reset spring of bracing piece.

Preferably, the device further comprises an elastic element, one end of the elastic element is fixedly connected to the fixed bottom plate, and the other end of the elastic element is connected to the second tilting end in a sliding mode.

Preferably, the length of the return spring is 1.5 to 2.5 times that of the elastic member without an external force.

Preferably, the surfaces of the first tilting end and the second tilting end, which are in contact with the car bottom, are provided with second buffer parts.

Preferably, the car bottom is provided with a layer of buffer cotton.

Preferably, the first buffer member and the second buffer member are one or more of a polyurethane buffer, a spring buffer and a polypropylene foam plastic block.

Preferably, the number of the shock absorption brackets is two.

The utility model discloses, contact with the first end of perk earlier at the bottom of the sedan-chair when the elevator descends, along with the landing contact surface of car increases gradually, the second end of perk all contacts with the sedan-chair bottom with first end of perk, the car with the shock absorber support butt, car, shock absorber support, mount move downwards in step, the shock attenuation step by step, shock attenuation is effectual, very stable; when the elevator car rises, the damping device can provide resilience force for the car, and the starting of the car is facilitated.

Drawings

Fig. 1 is a schematic structural view of a car bottom damping device provided in an embodiment of the present invention.

Wherein: 1-fixing the bottom plate; 2-a fixing frame; 21-a first buffer; 22-a compressible section; 3-a shock-absorbing bracket; 31-a first raised end; 311-a second buffer; 32-a second raised end; 4-a first elastic support mechanism; 41-compressible support bars; 42-a return spring; 5-an elastic member; 6-car bottom; 61-buffer cotton.

Detailed Description

The present invention will be described in detail with reference to the following embodiments.

Example one

Referring to fig. 1, fig. 1 is a schematic structural view of a car platform 6 not yet contacting the damping device, which comprises a fixed bottom plate 1, a fixed frame 2 fixed at the center of the fixed bottom plate 1, the non-fixed end of the fixed frame 2 is provided with a first buffer member 21, the fixed frame 2 is provided with a compressible section 22, the shock absorption bracket 3 is movably connected with the non-fixed end of the fixed frame 2, the shock absorption bracket 3 comprises a first tilting end 31 and a second tilting end 32 which can reciprocate up and down, and also comprises a first elastic supporting mechanism 4, one end of the first elastic supporting mechanism is fixedly connected with the fixed bottom plate 1, and the other end of the first elastic supporting mechanism is movably connected with the first tilting end 31, the first elastic supporting mechanism 4 includes a compressible supporting rod 41 for tilting the first tilting end 31 and having a horizontal position higher than the second tilting end 32, and a return spring 42 sleeved on the supporting rod. And the elastic part 5 is fixedly connected with the fixed bottom plate 1 at one end and is connected with the second tilting end 32 at the other end in a sliding manner.

The center swing joint of shock absorber support 3 in mount 2, the both ends of shock absorber support 3 are first perk end 31 and second perk end 32, and first perk end 31, second perk end 32 can reciprocate, and when the sedan-chair bottom 6 did not contact damping device, reset spring 42 was in the state of relaxing naturally, under the support of the compressible bracing piece 41 of first elastic support mechanism 4, first perk end 31 was perk upwards, and second perk end 32 was downward. The elastic member 5 is used to prevent the second raised end 32 from suddenly rising and striking the platform 6 when the platform 6 contacts the first raised end 31, thereby avoiding the generation of a vibration.

The length of the return spring 42 is 1.5-2.5 times of the elastic member 5 under the condition of no external force.

The surfaces of the first tilting end 31 and the second tilting end 32 contacting with the car bottom 6 are provided with a second buffer 311. The first buffer member 21 and the second buffer member 311 are one or more of a polyurethane buffer, a spring buffer, and a polypropylene foam block. The car bottom 6 is provided with a layer of buffer cotton 61. The first cushion 21 and the second cushion 311 can provide a first cushion effect when contacting the platform 6. The shock absorbing bracket 3 is one in this embodiment. The buffering cotton can reduce the sense of vibration when 6 contacts damping device at the bottom of the sedan-chair, and the buffering cotton can adopt high-density sponge and the like.

When the elevator descends, the car bottom 6 firstly contacts the second buffer piece 311 on the first tilting piece, the first tilting end 31 gradually moves downwards along with the downward movement of the car, the second tilting end 32 gradually moves upwards, the car bottom 6 can contact the first buffer piece 21 and the second buffer piece 311 on the second tilting end 32, the ground of the car bottom 6 is completely contacted with the damping support 3, and the first damping is completed; the car will continue to move downwards so that the compressible section 22, the first elastic supporting mechanism 4 and the elastic part 5 of the fixed frame 2 are compressed and move downwards together with the car until the car is static, and the car gradually decelerates under the action of damping force compressed by the compressible section 22, the first elastic supporting mechanism 4 and the elastic part 5 in the process to complete secondary shock absorption. The shock attenuation process is hierarchical shock attenuation, can not produce the impact force, can guarantee that the car is steady. When the elevator moves upwards, the reset spring 42 extends to tilt the first tilting end 31, and simultaneously the compressible section 22 also extends, the damping device restores the original position, and a lifting force is provided for the elevator car at the initial stage of the elevator starting.

Example two

The utility model provides a damping device at bottom of sedan-chair, including PMKD 1, rigid coupling in the mount 2 at PMKD 1 center, the non-rigid coupling end of mount 2 is equipped with first bolster 21, mount 2 is equipped with compressible section 22, still include swing joint in the shock absorber support 3 of the non-rigid coupling end of mount 2, shock absorber support 3 includes first perk end 31, the second perk end 32 that can up-and-down reciprocating motion, still includes one end rigid coupling in PMKD 1, other end swing joint in the first elastic support mechanism 4 of first perk end 31, first elastic support mechanism 4 is including making the compressible bracing piece 41, the cover that first perk end 31 perk and horizontal position are higher than second perk end 32 locate reset spring 42 of bracing piece. And the elastic part 5 is fixedly connected with the fixed bottom plate 1 at one end and is connected with the second tilting end 32 at the other end in a sliding manner.

The surfaces of the first tilting end 31 and the second tilting end 32 contacting with the car bottom 6 are provided with a second buffer 311. The first buffer member 21 and the second buffer member 311 are one or more of a polyurethane buffer, a spring buffer, and a polypropylene foam block. The car bottom 6 is provided with a layer of buffer cotton 61. The first cushion 21 and the second cushion 311 can provide a first cushion effect when contacting the platform 6. Preferably, the number of the shock absorbing brackets 3 is two.

The utility model discloses, the sedan-chair end 6 contacts with first perk end 31 earlier when the elevator descends, and along with the landing contact surface of car increases gradually, second perk end 32 all contacts with sedan-chair end 6 with first perk end 31, and the car is with shock absorber support 3 butt, and car, shock absorber support 3, mount 2 move downwards in step, and the hierarchical shock attenuation is effectual, and is very stable; when the elevator car rises, the damping device can provide resilience force for the car, and the starting of the car is facilitated.

The present invention is not limited to the above-described specific embodiments, and various modifications and changes are possible. Any modification, equivalent replacement, improvement and the like made to the above embodiments according to the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. The utility model provides a damping device at bottom of sedan-chair, its characterized in that, including PMKD, rigid coupling in the mount at PMKD center, the non-rigid coupling end of mount is equipped with first bolster, the mount is equipped with compressible section, still include swing joint in the shock absorber support of the non-rigid coupling end of mount, shock absorber support includes first perk end, the second perk end that can up-and-down reciprocating motion, still includes that one end rigid coupling is located PMKD, other end swing joint in the first elastic support mechanism of first perk end, first elastic support mechanism is including making the compressible bracing piece, the cover that first perk end perk and horizontal position are higher than second perk end are located the reset spring of bracing piece.

2. The car platform damping device according to claim 1, further comprising an elastic member having one end fixed to the fixed base plate and the other end slidably connected to the second raised end.

3. The platform damper according to claim 2, wherein the length of said return spring is 1.5-2.5 times that of said elastic member in the absence of an external force.

4. The car platform damping device according to claim 1, wherein a second damping member is provided on the surfaces of the first and second ends contacting the car platform.

5. The car bottom damping device as claimed in claim 4, wherein a layer of buffer cotton is provided on the car bottom.

6. The platform damper of claim 5, wherein the first and second dampers are one or more of polyurethane dampers, spring dampers, and polypropylene foam blocks.

7. The car platform damping device according to claim 1, wherein the number of the damping brackets is two.