CN112458875A

CN112458875A - Assembled beam buffer that prevents falling

Info

Publication number: CN112458875A
Application number: CN202011295665.1A
Authority: CN
Inventors: 陈俊汐
Original assignee: Wenzhou Fangduo Construction Co ltd
Current assignee: Wenzhou Fangduo Construction Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-03-09

Abstract

The invention relates to an assembled anti-falling beam buffer device, wherein a buffer plate is connected in a fixed cavity of a buffer seat at the top of a pier in a sliding manner, the top end of a supporting column at the top of the buffer plate extends to the upper part of the top of the buffer seat and is fixedly connected with an anti-falling beam main body, the bottom ends of two first springs which are symmetrically and fixedly connected on the inner wall of the top of the fixed cavity are fixedly connected with the top of the buffer plate, the bottom of the buffer plate is symmetrically and fixedly connected with two connecting columns, a ball screw is rotatably connected on the inner wall of the bottom of the fixed cavity, a screw nut is connected on the ball screw in a threaded manner, the bottom ends of the two connecting columns are fixedly connected with the top of the screw nut, two rotating shafts which are symmetrically and rotatably connected on the inner wall of the bottom of the fixed cavity are in transmission connection with the ball screw, the, the problem of current roof beam buffering effect that prevents falling is single, buffering effect is not good is solved.

Description

Assembled beam buffer that prevents falling

Technical Field

The invention belongs to the field of anti-falling beams, and relates to an assembled anti-falling beam buffering device.

Background

The anti-falling beam is a connecting measure construction method for resisting earthquake and preventing beam body from falling or disengaging in a bridge structure: the bridge comprises connecting rod devices arranged between adjacent beam bodies or between a bridge abutment and the beam bodies, at least one flexible connecting system is formed in the full-length direction of the bridge, and each connecting rod device is composed of a connecting rod and a damper.

The existing anti-falling beam buffering device is single in buffering effect and poor in buffering effect, so that the service life of a bridge can be shortened, the assembling operation of a buffering seat is complex, and the working efficiency is reduced.

Disclosure of Invention

In view of the above, the invention provides an assembly type anti-falling beam buffering device, which aims to solve the problems that the service life of a bridge is shortened due to single buffering effect and poor buffering effect of the existing anti-falling beam buffering device, the assembling operation of a buffering seat is complicated, and the working efficiency is reduced.

In order to achieve the purpose, the invention provides the following technical scheme: an assembled anti-falling beam buffer device comprises a bridge pier, wherein a buffer seat is arranged at the top of the bridge pier, a fixed cavity is arranged on the buffer seat, a buffer plate is connected in the fixed cavity in a sliding manner, a support column is fixedly connected to the top of the buffer plate, the top end of the support column extends to the position above the top of the buffer seat and is fixedly connected with an anti-falling beam main body, first springs are symmetrically and fixedly connected to the inner wall of the top of the fixed cavity, the bottom ends of the two first springs are fixedly connected with the top of the buffer plate, two connecting columns are symmetrically and fixedly connected to the bottom of the buffer plate, a ball screw is rotatably connected to the inner wall of the bottom of the fixed cavity, a screw nut is in threaded connection with the ball screw, the bottom ends of the two connecting columns are fixedly connected with the top of the screw nut, and two rotating, two pivots all are connected with ball transmission, and equal threaded connection has the movable plate in two pivots, two fixed columns of the equal symmetry fixedly connected with in top of two movable plates, the equal fixedly connected with stopper in top of four fixed columns, be equipped with fixed subassembly on the cushion socket.

The beneficial effect of this basic scheme lies in: through making first spring and second spring take place deformation, can realize vertical and horizontal buffering shock attenuation, and can make four stopper rebound to can provide an ascending reaction force to the buffer board, and then can offset the vertical shaking force of preventing the roof beam main part that falls, can make like this prevent that the roof beam main part that falls can not take place great rocking, buffering effect is good, and the buffer seat installation is fixed convenient simultaneously, has improved work efficiency.

Further, the fixing component comprises fixing boxes fixedly connected to two sides of the buffer seat, driving shafts are rotatably connected in the two fixing boxes, a first fixing shaft and a second fixing shaft are rotatably connected to the inner wall of the top of each fixing box respectively, bevel gears are fixedly sleeved on one end of each driving shaft and the first fixing shaft and are meshed with each other, belt pulleys are fixedly sleeved on the first fixing shaft and the second fixing shaft respectively, the two belt pulleys are rotatably connected with the same transmission belt, moving seats are in threaded connection with the first fixing shaft and the second fixing shaft respectively, threaded holes are formed in the tops of the two moving seats respectively, the bottom ends of the first fixing shaft and the second fixing shaft respectively extend into the two threaded holes and are in threaded connection with the two threaded holes respectively, the bottoms of the two moving seats are fixedly connected with the same sliding plate, and rectangular columns are fixedly connected to the bottoms of the sliding plates, the bottom of two rectangle posts extends to the bottom below and the fixedly connected with connecting plate of two fixed casees respectively, and a plurality of card posts of the equal fixedly connected with in bottom of two connecting plates, a plurality of draw-in grooves have been seted up to the top symmetry of pier, card post and draw-in groove looks adaptation, beneficial effect: the driving shaft rotates to drive the first fixing shaft to drive the second fixing shaft to synchronously rotate, and the sliding plate can drive the rectangular columns to move downwards through the two moving seats, so that the connecting plate can enable the clamping columns to move downwards and be clamped with the clamping grooves respectively, the buffer seat can be fixed on the bridge pier, operation is convenient, and working efficiency is improved.

Further, the spout has all been seted up on the both sides inner wall of fixed cavity, the both sides of buffer board respectively with one side inner wall sliding connection of two spouts, beneficial effect: the spout can make the buffer board remove more smoothly.

Further, fixed cover is equipped with first gear on the ball, and all fixed the cover is equipped with the second gear in two pivots, and two second gears all mesh mutually with first gear, beneficial effect: through two second gears and the meshing of first gear mutually, can make two pivots can be synchronous not equidirectional rotation with ball.

Further, all seted up the spacing groove on the both sides inner wall of fixed cavity, one side that two movable plates kept away from each other extends to two spacing inslots respectively and with one side inner wall sliding connection that two spacing grooves kept away from each other respectively, beneficial effect: the limiting groove can limit the moving plate, and the moving plate is prevented from rotating along with the rotating shaft.

Further, the stopper is the rectangle form, and the material of four stoppers is elastic rubber, beneficial effect: the elastic rubber has good elasticity, and further can provide elastic buffering for the buffer board.

Further, two fixed plates of the equal symmetry in both sides fixedly connected with of support column, one side that four fixed plates are close to each other all rotates and is connected with the connecting rod, the top symmetry sliding connection of buffing pad has two limiting plates, and the equal fixedly connected with rectangular block in one side that two limiting plates are close to each other, and the one end of four connecting rods rotates with the top and the bottom of two rectangular blocks respectively and is connected, the equal fixedly connected with second spring in both sides of support column, the one end that two second springs kept away from each other respectively with one side fixed connection that two rectangular blocks are close to each other, beneficial effect: when the support column moved downwards, four connecting rods can make two rectangular blocks drive two limiting plates and keep away from each other for deformation takes place for two second springs, and then can realize horizontal buffering shock attenuation, further improved buffering effect.

Further, one side of fixed case is seted up flutedly, the other end of drive shaft extends to in the recess and fixedly connected with nut, beneficial effect: through setting up the nut, can conveniently make the drive shaft rotate through the instrument.

Further, two telescopic links of symmetry fixedly connected with on the bottom inner wall of fixed case, the top of two telescopic links all with the bottom fixed connection of sliding plate, beneficial effect: the telescopic rod can make the sliding plate move more firmly.

Further, two rectangular channels have been seted up to the top symmetry of buffer seat, the bottom of two limiting plates respectively with the bottom inner wall sliding connection of two rectangular channels, beneficial effect: the rectangular channel can make the limiting plate can the steady movement, can not take place offset.

The invention has the beneficial effects that:

1. according to the assembled anti-falling beam buffer device disclosed by the invention, the driving shaft can be rotated through a tool, so that the first fixed shaft can drive the second fixed shaft to synchronously rotate, the sliding plate can drive the rectangular column to downwards move through the two moving seats, and the connecting plate can enable the plurality of clamping columns to downwards move and be respectively clamped with the plurality of clamping grooves, so that the buffer seat can be fixed on a pier, the operation is convenient, and the working efficiency is improved.

2. When the anti-falling beam main body moves downwards due to vibration, the supporting columns can drive the buffer plate to move downwards and enable the first springs to deform, so that longitudinal buffering and shock absorption can be realized, meanwhile, the buffer plate moves downwards, the ball screw can drive the two rotating shafts to rotate, the four fixed columns can drive the four limiting blocks to move upwards by the two moving plates, the limiting blocks are rectangular and made of elastic rubber, and have good elasticity, so that an upward reaction force can be provided for the buffer plate, the longitudinal vibration force of the anti-falling beam main body can be offset, the anti-falling beam main body cannot shake greatly, and the buffering effect is good.

3. According to the assembled anti-falling beam buffering device disclosed by the invention, when the supporting column moves downwards, the four connecting rods can enable the two rectangular blocks to drive the two limiting plates to be away from each other, so that the two second springs are deformed, the transverse buffering and shock absorption can be realized, and the buffering effect is further improved.

The anti-falling beam main body has the advantages that the structure is reasonable, the operation is convenient, the longitudinal and transverse buffering and shock absorption can be realized by deforming the first spring and the second spring, and the four limit blocks can move upwards, so that an upward reaction force can be provided for the buffer plate, the longitudinal vibration force of the anti-falling beam main body can be offset, the anti-falling beam main body cannot shake greatly, the buffering effect is good, the buffer seat is convenient to mount and fix, and the working efficiency is improved.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a front view of an assembled drop beam prevention cushioning device of the present invention;

FIG. 2 is a sectional view of a cushion seat in the fabricated drop-proof beam buffering device according to the present invention;

FIG. 3 is a cross-sectional view of a fixed box in the fabricated drop-proof beam buffering device according to the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3 according to the present invention;

FIG. 5 is an enlarged view of the portion B of FIG. 1 according to the present invention.

Reference numerals: 1 pier, 2 buffer seats, 3 fixed chambers, 4 buffer plates, 5 supporting columns, 6 anti-falling beam bodies, 7 first springs, 8 connecting columns, 9 lead screw nuts, 10 ball screws, 11 rotating shafts, 12 moving plates, 13 fixed columns, 14 limiting blocks, 15 limiting grooves, 16 sliding grooves, 17 first gears, 18 second gears, 19 fixed boxes, 20 fixed plates, 21 driving shafts, 22 screw caps, 23 first fixed shafts, 24 second fixed shafts, 25 moving seats, 26 sliding plates, 27 rectangular columns, 28 telescopic rods, 29 connecting plates, 30 clamping columns, 31 connecting rods, 32 limiting plates, 33 second springs and 34 rectangular grooves.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

As shown in figures 1-5, an assembled anti-falling beam buffer device comprises a bridge pier 1, a buffer seat 2 is arranged at the top of the bridge pier 1, a fixed chamber 3 is arranged on the buffer seat 2, a buffer plate 4 is slidably connected in the fixed chamber 3, a support pillar 5 is fixedly connected at the top of the buffer plate 4, the top end of the support pillar 5 extends to the top of the buffer seat 2 and is fixedly connected with an anti-falling beam main body 6, first springs 7 are symmetrically and fixedly connected on the inner wall of the top of the fixed chamber 3, the bottom ends of the two first springs 7 are fixedly connected with the top of the buffer plate 4, two connecting columns 8 are symmetrically and fixedly connected at the bottom of the buffer plate 4, a ball screw 10 is rotatably connected on the inner wall of the bottom of the fixed chamber 3, a screw nut 9 is connected on the ball screw 10 by screw threads, the bottom ends of the two connecting columns 8 are fixedly connected with the top of the screw nut 9, two pivot 11 all are connected with ball 10 transmission, and equal threaded connection has movable plate 12 on two pivot 11, two fixed columns 13 of the equal symmetrical fixedly connected with in top of two movable plates 12, the equal fixedly connected with stopper 14 in top of four fixed columns 13 is equipped with fixed subassembly on the cushion socket 2.

In this embodiment, the inner walls of the two sides of the fixed cavity 3 are both provided with sliding grooves 16, the two sides of the buffer plate 4 are respectively connected with the inner wall of one side of the two sliding grooves 16 in a sliding manner, the sliding grooves 16 can make the buffer plate 4 move more smoothly, the ball screw 10 is fixedly sleeved with a first gear 17, the two rotating shafts 11 are both fixedly sleeved with second gears 18, the two second gears 18 are both engaged with the first gear 17, the two rotating shafts 11 can synchronously rotate with the ball screw 10 in different directions by engaging the two second gears 18 with the first gear 17, the inner walls of the two sides of the fixed cavity 3 are both provided with limiting grooves 15, the mutually far sides of the two moving plates 12 respectively extend into the two limiting grooves 15 and are respectively connected with the inner wall of the mutually far side of the two limiting grooves 15 in a sliding manner, the limiting grooves 15 can limit the moving plates 12, so as to prevent the moving plates 12 from rotating along with, stopper 14 is the rectangle form, and four stoppers 14's material is elastic rubber, and elastic rubber has good elasticity, and then can provide elastic buffer to buffer board 4.

Two fixed plates 20 are symmetrically and fixedly connected to both sides of the supporting column 5, connecting rods 31 are rotatably connected to one side of each of the four fixed plates 20 close to each other, two limit plates 32 are symmetrically and slidably connected to the top of the buffer seat 2, rectangular blocks are fixedly connected to one side of each of the two limit plates 32 close to each other, one ends of the four connecting rods 31 are rotatably connected to the top and the bottom of the two rectangular blocks, second springs 33 are fixedly connected to both sides of the supporting column 5, one ends of the two second springs 33 away from each other are fixedly connected to one side of each of the two rectangular blocks close to each other, when the supporting column 5 moves downwards, the four connecting rods 31 can enable the two rectangular blocks to drive the two limit plates 32 away from each other, so that the two second springs 33 are deformed, thereby realizing transverse buffer and shock absorption, further improving the buffer effect, and two rectangular grooves 34 are symmetrically formed in, the bottoms of the two limiting plates 32 are respectively connected with the inner walls of the bottoms of the two rectangular grooves 34 in a sliding manner, and the rectangular grooves 34 can enable the limiting plates 32 to move stably without position deviation.

In this embodiment, the fixing assembly includes fixing boxes 19 fixedly connected to both sides of the buffer base 2, driving shafts 21 are rotatably connected to both of the fixing boxes 19, a first fixing shaft 23 and a second fixing shaft 24 are rotatably connected to an inner wall of a top portion of the fixing box 19, bevel gears are fixedly sleeved on one end of each of the driving shafts 21 and the first fixing shaft 23, and the two bevel gears are engaged with each other, belt pulleys are fixedly sleeved on the first fixing shaft 23 and the second fixing shaft 24, the same transmission belt is rotatably connected to the two belt pulleys, moving bases 25 are respectively screwed on the first fixing shaft 23 and the second fixing shaft 24, threaded holes are formed at top portions of the two moving bases 25, bottom ends of the first fixing shaft 23 and the second fixing shaft 24 extend into the two threaded holes and are respectively screwed with the two threaded holes, the same sliding plate 26 is fixedly connected to bottom portions of the two moving bases 25, the bottom of the sliding plate 26 is fixedly connected with a rectangular column 27, the bottom ends of the two rectangular columns 27 respectively extend to the lower part of the bottom of the two fixed boxes 19 and are fixedly connected with a connecting plate 29, the bottom of the two connecting plates 29 are fixedly connected with a plurality of clamping columns 30, the top of the pier 1 is symmetrically provided with a plurality of clamping slots, the clamping columns 30 are matched with the clamping slots, the first fixed shaft 23 can drive the second fixed shaft 24 to synchronously rotate through the rotation of the driving shaft 21, the sliding plate 26 can drive the rectangular columns 27 to downwards move through the two moving seats 25, so that the connecting plate 29 can drive the clamping columns 30 to downwards move and respectively clamp with the clamping slots, the buffer seat 2 can be fixed on the pier 1, the operation is convenient, the working efficiency is improved, one side of the fixed boxes 19 is provided with a groove, the other end of the driving shaft 21 extends into the groove and is fixedly connected with a nut 22, and through the arrangement, can conveniently make drive shaft 21 rotate through the instrument, two telescopic links 28 of symmetry fixedly connected with on the bottom inner wall of fixed case 19, the top of two telescopic links 28 all with the bottom fixed connection of sliding plate 26, telescopic link 28 can make sliding plate 26 remove more firm.

The using method of the assembled beam falling prevention buffer device comprises the steps that firstly, two nuts 22 are rotated through a tool, the two nuts 22 can enable two driving shafts 21 to rotate, the driving shafts 21 can drive a first fixing shaft 23 to rotate through two bevel gears, the first fixing shaft 23 can enable a second fixing shaft 24 to synchronously rotate through two belt pulleys and a transmission belt, the first fixing shaft 23 and the second fixing shaft 24 can enable two moving seats 25 to drive a sliding plate 26 to move downwards, the two sliding plates 26 can enable two connecting plates 29 to move downwards through two rectangular columns 27, the two connecting plates 29 can enable a plurality of clamping columns 30 to be respectively clamped with a plurality of clamping grooves, and therefore the buffer seat 2 can be fixed on a pier 1.

When the anti-falling beam main body is vibrated, the supporting column 5 can move downwards, the supporting column 5 can move the buffer plate 4 downwards, so that the two first springs 7 can deform, the anti-falling beam main body 3 can be longitudinally buffered and damped by the two first springs 7, the buffer plate 4 can drive the screw nut 9 to move downwards through the two connecting columns 8, so that the ball screw 10 can rotate, the ball screw 10 can rotate the first gear 17, the two second gears 18 are meshed with the first gear 17, so that the two rotating shafts 11 can synchronously rotate, the rotating directions of the two rotating shafts 11 are opposite to the rotating directions of the ball screw 10, the two rotating shafts 11 can move the two moving plates 12 downwards, the four limiting blocks 14 can move upwards through the four fixed columns 13, and the limiting blocks 14 are rectangular and are made of elastic rubber and have good elasticity, thereby can provide an ascending reaction force to buffer board 4, and then can offset the longitudinal vibration power of preventing roof beam main part 3 that falls, can make like this prevent falling roof beam main part 3 and can not take place great rocking, and the cushioning effect is good, and simultaneously in support column 5 downstream, four connecting rods 31 can make two rectangular blocks drive two limiting plates 32 and keep away from each other for two second springs 33 take place deformation, and then can realize horizontal buffering shock attenuation, has further improved the cushioning effect.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims

1. The assembled anti-falling beam buffering device comprises a bridge pier (1) and is characterized in that a buffering seat (2) is arranged at the top of the bridge pier (1), a fixing cavity (3) is arranged on the buffering seat (2), a buffering plate (4) is connected in the fixing cavity (3) in a sliding mode, a supporting column (5) is fixedly connected to the top of the buffering plate (4), the top end of the supporting column (5) extends to the position above the top of the buffering seat (2) and is fixedly connected with an anti-falling beam main body (6), first springs (7) are symmetrically and fixedly connected to the inner wall of the top of the fixing cavity (3), the bottom ends of the two first springs (7) are fixedly connected to the top of the buffering plate (4), two connecting columns (8) are symmetrically and fixedly connected to the bottom of the buffering plate (4), and a ball screw (10) is rotatably connected to the inner wall of the bottom of the fixing cavity (, threaded connection has screw nut (9) on ball (10), the bottom of two spliced poles (8) all with the top fixed connection of screw nut (9), the symmetry is rotated on the bottom inner wall of fixed cavity (3) and is connected with two pivots (11), two pivots (11) all are connected with ball (10) transmission, equal threaded connection has movable plate (12) on two pivots (11), two fixed columns (13) of the equal symmetrical fixedly connected with in top of two movable plates (12), the equal fixedly connected with stopper (14) in top of four fixed columns (13), be equipped with fixed subassembly on cushion block (2).

2. The assembled beam falling prevention buffer device according to claim 1, wherein the fixing assembly comprises fixing boxes (19) fixedly connected to both sides of the buffer seat (2), a driving shaft (21) is rotatably connected in each of the fixing boxes (19), a first fixing shaft (23) and a second fixing shaft (24) are rotatably connected to the inner wall of the top of each fixing box (19), a bevel gear is fixedly sleeved on one end of each driving shaft (21) and the first fixing shaft (23) and is engaged with the two bevel gears, belt pulleys are fixedly sleeved on the first fixing shaft (23) and the second fixing shaft (24) respectively, the two belt pulleys are rotatably connected with the same transmission belt, a moving seat (25) is in threaded connection with each of the first fixing shaft (23) and the second fixing shaft (24), and threaded holes are formed in the top of each moving seat (25), the bottom of first fixed axle (23) and second fixed axle (24) extends to respectively in two threaded holes and respectively with two screw hole threaded connection, two same sliding plate (26) of bottom fixedly connected with of removing seat (25), the bottom fixedly connected with rectangle post (27) of sliding plate (26), the bottom of two rectangle posts (27) extends to respectively the bottom below and the fixedly connected with connecting plate (29) of two fixed casees (19), the equal fixedly connected with a plurality of card posts (30) in bottom of two connecting plates (29), a plurality of draw-in grooves have been seted up to the top symmetry of pier (1), card post (30) and draw-in groove looks adaptation.

3. The assembled beam falling prevention buffer device as claimed in claim 1, wherein sliding grooves (16) are formed on the inner walls of both sides of the fixed chamber (3), and both sides of the buffer plate (4) are slidably connected with the inner wall of one side of each of the two sliding grooves (16).

4. The assembled beam falling prevention buffer device as claimed in claim 1, wherein the ball screw (10) is fixedly sleeved with a first gear (17), the two rotating shafts (11) are fixedly sleeved with second gears (18), and the two second gears (18) are meshed with the first gear (17).

5. The assembled beam falling prevention buffer device as claimed in claim 1, wherein the fixed chamber (3) is provided with two side inner walls with limiting grooves (15), and the sides of the two moving plates (12) far away from each other extend into the two limiting grooves (15) respectively and are connected with the inner walls of the two limiting grooves (15) far away from each other in a sliding manner.

6. The assembled beam falling prevention buffer device as claimed in claim 1, wherein the limit blocks (14) are rectangular, and the four limit blocks (14) are made of elastic rubber.

7. The assembled beam falling prevention buffer device as claimed in claim 1, wherein two fixed plates (20) are symmetrically and fixedly connected to both sides of the supporting column (5), a connecting rod (31) is rotatably connected to one side of each of the four fixed plates (20) close to each other, two limiting plates (32) are symmetrically and slidably connected to the top of the buffer base (2), rectangular blocks are fixedly connected to one sides of the two limiting plates (32) close to each other, one ends of the four connecting rods (31) are respectively rotatably connected to the tops and the bottoms of the two rectangular blocks, second springs (33) are fixedly connected to both sides of the supporting column (5), and one ends of the two second springs (33) far away from each other are respectively fixedly connected to one sides of the two rectangular blocks close to each other.

8. A fabricated falling beam prevention buffer device as claimed in claim 2, wherein one side of the fixed box (19) is provided with a groove, and the other end of the driving shaft (21) extends into the groove and is fixedly connected with a nut (22).

9. The assembled falling beam prevention buffer device as claimed in claim 2, wherein two telescopic rods (28) are symmetrically and fixedly connected to the inner wall of the bottom of the fixed box (19), and the top ends of the two telescopic rods (28) are fixedly connected to the bottom of the sliding plate (26).

10. The assembled beam falling prevention buffer device as claimed in claim 7, wherein the top of the buffer seat (2) is symmetrically provided with two rectangular grooves (34), and the bottoms of the two limit plates (32) are respectively connected with the inner walls of the bottoms of the two rectangular grooves (34) in a sliding manner.