CN210457071U

CN210457071U - Elevator buffer

Info

Publication number: CN210457071U
Application number: CN201921622375.6U
Authority: CN
Inventors: 胡剑锋; 周金龙; 徐志莲; 汤萍妹; 张巧云
Original assignee: Fast Elevator Co Ltd
Current assignee: Fast Elevator Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-05-05
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses an elevator buffer, this elevator buffer include buffer shell, intermediate lever, buffer base, buffer spring and nested post, the upper portion at the buffer base is installed to the buffer shell, intermediate lever movable mounting is inside the buffer shell, buffer spring is located the bottom of buffer shell, nested post has a plurality of, and the nested post of a plurality of encircles and installs around the intermediate lever, the buffer shell outside is equipped with the protruding physique of a plurality of corresponding with nested post, is equipped with spring mechanism in the nested post. The utility model has the advantages that this elevator buffer utilizes buffer spring to drop into again and pops out to the convex body through the expansion end of nested post after the speed in pit and make the elevator stop the tenesmus.

Description

Elevator buffer

Technical Field

The utility model belongs to elevator safety protection field especially relates to an elevator buffer.

Background

The buffer is arranged on the ground of the shaft pit. If for some reason, the buffer is a braking device used for absorbing or consuming the kinetic energy of the car or the counterweight when the car or the counterweight exceeds the limit position and the bottom of the pier occurs. The common buffer comprises a spring buffer and a hydraulic buffer. When the spring buffer is impacted by the lift car or the counterweight device, the kinetic energy of the lift car or the counterweight device is absorbed by the deformation of the spring, so that the elevator is buffered when falling. However, the spring buffer is an energy storage type buffer, and has poor impact energy absorption and poor buffering effect. The hydraulic buffer is complex in structure, and after the energy-consuming buffer acts, the plunger is required to be restored to the full-extension position within 120s, so that the return spring or the plunger is easy to break down, hydraulic oil is easy to leak, and maintenance is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides an elevator buffer for solve prior art's defect.

The utility model adopts the technical scheme as follows:

the utility model provides an elevator buffer, this elevator buffer include buffer shell, intermediate lever, buffer base, buffer spring and nested post, the upper portion at the buffer base is installed to the buffer shell, intermediate lever movable mounting is inside the buffer shell, buffer spring is located the bottom of buffer shell, nested post has a plurality of, and the nested post of a plurality of encircles and installs around the intermediate lever, the buffer shell outside is equipped with a plurality of convex body corresponding with nested post, is equipped with spring mechanism in the nested post, and this elevator buffer is popped out to the convex internal by the expansion end of the nested post of spring mechanism compression in the buffer shell after reducing the falling speed of elevator through buffer spring up-and-down motion.

Furthermore, the middle rod is located in a groove in the buffer shell, an upper buffering pad is arranged at the upper end of the middle rod and fixedly connected with the middle rod, a push rod is arranged at the upper part of the buffering spring and fixedly connected with the middle rod, a limiting column is arranged at the lower part of the middle rod, and the diameter of the limiting column is larger than that of the middle rod. The intermediate lever is at the inside up-and-down motion of buffer shell, and it has a cushioning effect to the elevator of whereabouts to go up the blotter, goes up blotter and push rod and all fixes on the intermediate lever, and the intermediate lever receives buffer spring's reaction force back and forth motion from top to bottom, and the motion position of intermediate lever can be restricted to spacing post for the intermediate lever can not pop out from the buffer shell because reaction force is too big and whole intermediate lever.

Furthermore, the embedded columns are four, the four embedded columns are respectively located on the X axis and the Y axis of the middle rod, the convex bodies on the buffer shell are also four, the fixed ends of the embedded columns are fixed with the middle rod, grooves are formed in the convex bodies, and the grooves in the convex bodies are communicated with the grooves in the buffer shell. The elastic modulus of the buffer spring is calculated, the calculated back-and-forth movement of the buffer spring tends to be gentle, at the moment, the spring mechanism compressed in the buffer shell in the embedded column pops out from the notch of the buffer shell, and the spring mechanism drives the movable end of the embedded column to pop out into the convex body.

Furthermore, the buffer spring surrounds the middle rod, one end of the buffer spring is fixedly connected with the push rod, and the other end of the buffer spring is fixedly connected with the bottom of the groove of the buffer shell. The buffer spring generates reaction force to absorb the kinetic energy of the lift car or the counterweight device, so that the falling of the elevator is buffered and the speed is reduced.

Furthermore, a movement channel of the middle rod is arranged on the buffer base, and an anti-collision rubber layer is arranged at the bottom of the movement channel. The motion channel supplies the intermediate lever up-and-down motion, and the crashproof rubber layer can alleviate the decurrent power of intermediate lever, prevents that intermediate lever or buffer base from being damaged by the collision.

Further, the top end of the convex body, namely the top of the groove, is provided with an anti-collision rubber layer. The rubber bumper layer here protects the male body and the nesting columns.

Further, the buffer spring is a compression spring. The compression spring provides a counter force to the load pressure.

The utility model discloses following beneficial effect has: the elevator buffer is not different from the unstable buffering effect of an energy storage buffer, is different from the complex structure of an energy consumption buffer, is easy to break down or inconvenient in oil leakage maintenance, and utilizes the buffer spring to reduce the speed of falling into a pit of the elevator and then ejects the elevator into the convex body through the movable end of the embedded column to stop the elevator from falling.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of a nested column configuration;

fig. 3 is a top view of the present invention.

In the figure, 100 is the base of the buffer, 110 is the movement channel, 2 is the buffer spring, 320 is the push rod, 330 is the middle rod, 340 is the upper buffer pad, 350 is the limit column, 4 is the shell of the buffer, 5 is the embedded column, 510 is the spring mechanism, 6 is the convex body.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Example (b): as shown in fig. 1 and 2, an elevator buffer comprises a buffer shell 4, an intermediate rod 330, a buffer base 100, buffer springs 2 and nesting columns 5, wherein the buffer shell 4 is installed on the upper portion of the buffer base 100, the intermediate rod 330 is movably installed inside the buffer shell 4, the buffer springs 2 are located at the bottom of the buffer shell 4, the nesting columns 5 are provided with a plurality of nesting columns 5, the nesting columns 5 are installed around the intermediate rod 330, a plurality of convex bodies 6 corresponding to the nesting columns 5 are arranged on the outer side of the buffer shell 4, spring mechanisms 510 are installed in the nesting columns 5, and the elevator buffer is ejected out of the convex bodies 6 by the movable ends of the nesting columns 5, which are compressed in the buffer shell 4 by the spring mechanisms 510 after the falling speed of an elevator is reduced by the up-and-down movement of the buffer springs 2.

The middle rod 330 is positioned in a groove inside the buffer shell 4, the upper end of the middle rod 330 is provided with an upper cushion pad 340, the upper cushion pad 340 is fixedly connected with the middle rod 330, the upper part of the buffer spring 2 is provided with a push rod 320, the push rod 320 is fixedly connected with the middle rod 330, the lower part of the middle rod 330 is provided with a limiting column 350, and the diameter of the limiting column 350 is larger than that of the middle rod 330. The middle rod 330 moves up and down in the buffer shell 4, the upper cushion 340 has a buffer function for the falling elevator, the upper cushion 340 and the push rod 320 are both fixed on the middle rod 330, the middle rod 330 moves up and down back and forth under the reaction force of the buffer spring 2, and the limiting column 350 can limit the movement position of the middle rod 330, so that the whole middle rod 330 cannot be ejected out of the buffer shell due to too large reaction force of the middle rod 330.

The embedded columns 5 are four, the four embedded columns 5 are respectively located on the X axis and the Y axis of the middle rod 330, the convex bodies 6 on the buffer shell 4 are also four, the fixed ends of the embedded columns 5 are fixed with the middle rod 330, grooves are formed in the convex bodies 6, and the grooves in the convex bodies 6 are communicated with the grooves in the buffer shell 4. The elastic modulus of the buffer spring 2 is calculated, the calculated back-and-forth movement of the buffer spring 2 tends to be gentle, at the moment, the spring mechanism 510 compressed inside the buffer shell 4 in the embedded column 5 is ejected out of the notch of the buffer shell 4, and the spring mechanism 510 drives the movable end of the embedded column 5 to eject into the convex body 6.

The buffer spring 2 surrounds the middle rod 330, one end of the buffer spring 2 is fixedly connected with the push rod 320, and the other end of the buffer spring is fixedly connected with the bottom of the groove of the buffer shell 4. The buffer spring 2 generates reaction force to absorb the kinetic energy of the car or the counterweight, so that the falling of the elevator is buffered and the speed is reduced.

The buffer base 100 is provided with a movement channel 110 of the middle rod 330, and the bottom of the movement channel 110 is provided with an anti-collision rubber layer. The movement channel 110 allows the middle rod 330 to move up and down, and the anti-collision rubber layer can reduce the downward force of the middle rod 330 and prevent the middle rod or the cushion base 100 from being damaged.

And the top end of the convex body 6, namely the top of the groove, is provided with an anti-collision rubber layer. The rubber bumper layer here protects the male body 6 and the nesting stud 5.

The buffer spring 2 is a compression spring. The compression spring provides a counter force to the load pressure.

When the elevator falls, the upper cushion pad 340 firstly plays roles of buffering and decelerating the falling elevator, in the falling process of the elevator, the middle rod 330 moves up and down under the reaction force of the buffer spring 2 until the falling speed of the elevator is reduced, at this time, the spring mechanism 510 compressed inside the buffer shell 4 in the embedded column 5 is ejected out of the gap of the buffer shell 4, the spring mechanism 510 drives the movable end of the embedded column 5 to eject into the convex body 6, and the falling of the elevator is stopped.

Claims

1. The utility model provides an elevator buffer, its characterized in that, this elevator buffer includes buffer shell (4), intermediate lever (330), buffer base (100), buffer spring (2) and nested post (5), install the upper portion at buffer base (100) buffer shell (4), intermediate lever (330) movable mounting is inside buffer shell (4), buffer spring (2) are located the bottom of buffer shell (4), nested post (5) have a plurality of, and a plurality of is nested post (5) encircle install around intermediate lever (330), buffer shell (4) outside is equipped with a plurality of convex body (6) corresponding with nested post (5), is equipped with spring mechanism (510) in nested post (5), and this elevator buffer is compressed by spring mechanism (510) after the falling speed of elevator reduces the falling speed through buffer spring (2) up-and-down motion to protruding end activity to the protruding nested post (5) of inlaying in buffer shell (4) The body (6).

2. An elevator buffer as defined in claim 1, characterized in that the intermediate rod (330) is located in a groove inside the buffer housing (4), the upper end of the intermediate rod (330) is provided with an upper cushion pad (340), the upper cushion pad (340) is fixedly connected with the intermediate rod (330), the upper part of the buffer spring (2) is provided with a push rod (320), the push rod (320) is fixedly connected with the intermediate rod (330), the lower part of the intermediate rod (330) is provided with a spacing column (350), and the diameter of the spacing column (350) is larger than that of the intermediate rod (330).

3. An elevator buffer as defined in claim 1, characterized in that there are four said nesting posts (5), four nesting posts (5) are located on the X-axis and Y-axis of the intermediate rod (330), and there are four said convex bodies (6) on the buffer housing (4), the fixed ends of said nesting posts (5) are fixed to the intermediate rod (330), and there are grooves in said convex bodies (6), and the grooves in the convex bodies (6) are connected to the grooves inside the buffer housing (4).

4. An elevator buffer as defined in claim 3, characterized in that the buffer spring (2) is looped around the intermediate rod (330), and one end of the buffer spring (2) is fixedly connected to the push rod (320) and the other end is fixedly connected to the bottom of the recess of the buffer housing (4).

5. An elevator buffer as defined in claim 1, wherein the buffer base (100) is provided with a moving channel (110) of the middle rod (330), and the bottom of the moving channel (110) is provided with a rubber layer.

6. An elevator buffer as defined in claim 3, characterized in that the top end of the convex body (6), i.e. the top of the groove, is provided with a layer of anti-collision rubber.

7. An elevator buffer as defined in claim 1, characterized in that the buffer spring (2) is a compression spring.