CN217972121U

CN217972121U - Multistage buffer device for elevator

Info

Publication number: CN217972121U
Application number: CN202222309378.2U
Authority: CN
Inventors: 张维钢
Original assignee: Theo Installation Elevator Tianjin Co ltd
Current assignee: Theo Installation Elevator Tianjin Co ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-12-06
Anticipated expiration: 2032-08-30

Abstract

The utility model discloses a multistage buffer for elevator, the on-line screen storage device comprises a base, the base assembly is in the elevator well, still including the supporting mechanism that is used for providing adjustable support for the elevator, be used for carrying out the primary buffer gear of direct buffering to the supporting mechanism, be used for providing the secondary buffer gear of secondary buffering for the supporting mechanism and be used for carrying out spacing stop gear to secondary buffer gear, the supporting mechanism is located the upper end of base, primary buffer gear are located between base and the supporting mechanism, secondary buffer gear is located base upper end middle part just is located the supporting mechanism inboard, stop gear be located secondary buffer gear with between the base, the beneficial effects of the utility model are that simple structure is equipped with supporting mechanism, can couple in order to constitute adjustable supporting structure with the base, is equipped with primary buffer gear and secondary buffer gear, can cooperate primary buffer gear to carry out dual buffering to the supporting mechanism in buffer process, effectively promotes buffering effect through buffering step by step.

Description

Multistage buffer device for elevator

Technical Field

The utility model belongs to the technical field of elevator buffer technical field and specifically relates to a multistage buffer is used to elevator is related to.

Background

In the prior art, an elevator is a permanent transportation device serving a plurality of specific floors in a building, the elevator car of which runs on at least two rigid rails moving perpendicularly to the horizontal plane or at an angle of inclination of less than 15 ° to the vertical, the elevator being a vertical elevator powered by an electric motor and equipped with a box-like car for carrying passengers or goods in a multi-story building, the elevator having a car running between at least two rigid rails at an angle of inclination of less than 15 ° and dimensioned and configured to facilitate passengers to enter and exit or to load and unload goods, and it is customary to use the elevator as a generic term for vertical transportation means in a building irrespective of the way it is driven. The cushioning pad that directly adopts of present overwhelming majority elevator all cushions the absorbing, and buffering effect is poor to when the elevator takes place to fall, the buffer that is usual can not carry out fine buffering to the car, causes the injury of people's health and the damage of article, makes the life of car low, and the suitability of device is not high, and the buffer structure length of general this type of equipment is fixed, can't adjust, is difficult to change buffer distance according to actual demand.

The application numbers are: 202122479078.4 discloses a chinese utility model patent discloses an elevator hydraulic means with multistage buffering protection architecture, including pneumatic cylinder main part and mounting panel, the fixed welding in top of mounting panel has the pneumatic cylinder main part, the top of pneumatic cylinder main part is fixed with the casing, four inside corners of casing swing joint respectively have the corner gear, the inside of corner gear is provided with a transmission section of thick bamboo, the inside swing joint of a transmission section of thick bamboo has the screw rod. The casing is fixed at the top of the hydraulic cylinder main body, the turntable at one position is rotated randomly, the corner gears connected with the top of the hydraulic cylinder main body rotate in the same direction with the corner gears at the other three positions by the driving belt, the screw rod is led out upwards from the inside of the transmission cylinder at the moment, the screw rod is fixed by the bolt after reaching a proper position, and the guide cylinder below the connecting plate can be supported by the connected circular rings when being pressed downwards under the stress of the guide cylinder. However, the elevator hydraulic device with the multistage buffering protection structure is complex in structure, the buffering can be realized only by accurate matching between a plurality of precise parts in the process of buffering the elevator car, the buffering mechanism is complex, and large abrasion can be generated in the process of daily use of the elevator, so that the buffering effect is obviously reduced, and the practicability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multistage buffer is used to elevator.

In order to achieve the above purpose, the utility model provides a technical scheme is:

the utility model provides a multistage buffer for elevator, includes the base, the base assembly is in the elevator shaft, still including the supporting mechanism that is used for providing adjustable support for the elevator, be used for carrying out the primary buffer gear of direct buffering to the supporting mechanism, be used for providing the secondary buffer gear of secondary buffering for the supporting mechanism and be used for carrying out spacing stop gear to secondary buffer gear, the supporting mechanism is located the upper end of base, primary buffer gear is located between base and the supporting mechanism, secondary buffer gear is located base upper end middle part just is located the supporting mechanism inboard, stop gear be located secondary buffer gear with between the base.

The supporting mechanism comprises a supporting rod, a supporting table and supporting anti-falling blocks, the supporting rod is provided with two groups, each group is formed by two rod bodies which are arranged at intervals side by side, the upper portion of the base corresponds to the supporting rod is provided with a supporting groove, the supporting rod is symmetrically arranged on two sides of the upper end of the base and is inserted into the base through the supporting groove, the supporting table is arranged at two groups, the upper end of the supporting rod is fixedly connected with the supporting rod, the supporting anti-falling blocks correspond to the two groups, the supporting anti-falling blocks are arranged on two groups, each group is formed by two anti-falling blocks which are arranged at intervals side by side, the supporting anti-falling blocks are respectively arranged at two groups, the lower ends of the supporting rod are fixedly connected with the corresponding supporting rod, the supporting anti-falling blocks are located in the supporting groove and are connected with the supporting groove in a clamping mode, and the supporting rod is connected with the supporting groove in a clamping mode.

Still include the supporting pad, the supporting pad is equipped with four, four the supporting pad sets up respectively the upper end of brace table all around and with brace table fixed connection, the upper end limit portion of supporting pad is the arc setting.

Elementary buffer gear includes elementary installation piece, elementary buffer spring and elementary collar, elementary installation piece is equipped with at least two sets ofly, and at least two sets of elementary installation piece symmetry sets up the bottom both sides of propping up the supporting bench and with propping up supporting bench fixed connection, elementary buffer spring corresponds at least two sets of elementary installation piece is equipped with at least two sets ofly, and at least two sets of elementary buffer spring sets up respectively at least two sets of the bottom of elementary installation piece and its upper end and corresponding elementary installation piece fixed connection, elementary collar corresponds at least two sets of elementary buffer spring is equipped with at least two sets ofly, and at least two sets of elementary collar sets up respectively at least two sets of the lower extreme of elementary buffer spring and with corresponding elementary buffer spring fixed connection, the lower extreme of elementary collar with base fixed connection.

Still include elementary anti-sticking post and elementary mounting groove, elementary anti-sticking post corresponds at least two sets ofly elementary installation piece is equipped with at least two sets ofly, at least two sets ofly elementary anti-sticking post sets up respectively at least two sets of its upper end of elementary installation piece and corresponding elementary installation piece fixed connection, elementary anti-sticking post is located and corresponds elementary buffer spring's inboard, elementary anti-sticking post's lower extreme is located and corresponds the inside of elementary collar, elementary mounting groove corresponds at least two sets of elementary anti-sticking post is equipped with at least two sets ofly, at least two sets of elementary mounting groove corresponds at least two sets of elementary collar sets up the upper portion of base, elementary mounting groove with elementary anti-sticking post corresponds the setting.

The secondary buffer mechanism comprises secondary base blocks, secondary mounting rods, secondary buffer springs and secondary mounting blocks, wherein at least two groups of secondary base blocks are arranged in the middle of the upper end of the base side by side at intervals and are connected with the base in an embedded mode, at least two groups of secondary mounting rods are arranged corresponding to the at least two groups of secondary base blocks, at least two groups of secondary mounting rods are arranged at the upper ends of the at least two groups of secondary base blocks respectively, the lower ends of the secondary mounting rods are fixedly connected with the corresponding secondary base blocks, at least two groups of secondary buffer springs are arranged corresponding to the at least two groups of secondary base blocks, at least two groups of secondary buffer springs are arranged at the upper ends of the at least two groups of secondary base blocks respectively, the lower ends of the secondary buffer springs are fixedly connected with the corresponding secondary base blocks, the secondary buffer springs are sleeved outside the corresponding secondary mounting rods, at least two groups of secondary buffer springs are arranged corresponding to the at least two groups of secondary mounting blocks, at least two groups of secondary mounting blocks are arranged at the upper ends of the at least two groups of secondary buffer springs respectively and are fixedly connected with the corresponding secondary buffer springs, secondary mounting grooves are arranged on one side of the secondary mounting blocks, and the secondary mounting grooves are arranged in the secondary mounting grooves, and the secondary mounting rods are arranged on one side of the secondary base blocks, and the secondary mounting grooves are arranged on one side of the secondary base blocks.

Still include secondary protection casing and guard ring groove, secondary protection casing be in the outside of secondary installation piece and with the upper end fixed connection of secondary installation piece, the lower extreme limit portion of secondary protection casing with the upper end parallel and level setting of base, the guard ring groove corresponds secondary protection casing ring is established the upper end middle part of base.

Stop gear includes spacing post and limiting bottom plate, spacing post sets up secondary protection casing inboard middle part and its upper end with secondary protection casing fixed connection, the upper end middle part of base corresponds spacing post is equipped with the holding tank, the lower extreme of spacing post is located the holding tank, limiting bottom plate sets up the lower extreme of spacing post and with spacing post fixed connection, limiting bottom plate is located the holding tank.

Still include spacing cotton pad, spacing cotton pad corresponds spacing bottom plate sets up in the inboard bottom of holding tank.

Still include the mounting base plate, the mounting base plate sets up the bottom of base and with base fixed connection, the mounting base plate passes through the bolt and installs in the elevator shaft, the base passes through the mounting base plate assembly is in the elevator shaft.

The utility model has the advantages that:

simple structure, be equipped with supporting mechanism, can couple in order to constitute adjustable bearing structure with the base, can prevent to appear the obscission between bearing structure and the base, be equipped with elementary buffer gear, can directly cushion supporting mechanism, be equipped with secondary buffer gear, can cooperate elementary buffer gear to carry out dual buffering to supporting mechanism at the buffer process, multistage buffer structure can cushion the elevator step by step, effectively promote its buffering effect, and anti-sticking structure has among the buffer gear, can prevent buffer structure dead phenomenon of card from appearing in the buffer process, be equipped with stop gear, can carry on spacingly to buffer gear's stroke, hoisting device's support performance and its wholeness, therefore, the clothes hanger is strong in practicability.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view of the primary buffer mechanism of the present invention;

fig. 3 is a schematic structural view of the secondary buffer mechanism of the present invention.

In the figure: 1. a base; 2. a support bar; 3. a support table; 4. supporting the anti-drop block; 5. a support pad; 6. a primary mounting block; 7. a primary buffer spring; 8. a primary mounting ring; 9. a primary anti-seize post; 10. a primary mounting groove; 11. a secondary base block; 12. a secondary mounting rod; 13. a secondary buffer spring; 14. a secondary mounting block; 15. a secondary shield; 16. a guard ring groove; 17. a limiting column; 18. a limiting bottom plate; 19. a limiting cotton pad; 20. and installing a base plate.

Detailed Description

The invention will be described in further detail with reference to the accompanying drawings,

the utility model provides a multistage buffer is used to elevator, including base 1, base 1 assembles in the elevator shaft, still including the supporting mechanism that is used for providing adjustable brace for the elevator, be used for carrying out the primary buffer gear of direct buffering to the supporting mechanism, be used for providing the secondary buffer gear of secondary buffering and be used for carrying out spacing stop gear to secondary buffer gear, supporting mechanism is located base 1's upper end, primary buffer gear is located between base 1 and the supporting mechanism, secondary buffer gear is located base 1 upper end middle part and is located the supporting mechanism inboard, stop gear is located between secondary buffer gear and the base 1, the utility model discloses the overall structure schematic diagram is as shown in figure 1.

The supporting mechanism includes bracing piece 2, brace table 3 and support anticreep piece 4, bracing piece 2 is equipped with two sets ofly, every group bracing piece 2 comprises two body of rod that the interval set up side by side, the upper portion of base 1 corresponds bracing piece 2 and is equipped with the support groove, two sets of bracing piece 2 symmetry sets up in the upper end both sides of base 1 and pegs graft with base 1 through supporting the groove, brace table 3 sets up in the upper end of two sets of bracing pieces 2 and with bracing piece 2 fixed connection, support anticreep piece 4 and correspond two sets of bracing pieces 2 and be equipped with two sets ofly, every group supports anticreep piece 4 and comprises two anticreep blocks that the interval set up side by side, two sets of support anticreep blocks 4 set up respectively at the lower extreme of two sets of bracing pieces 2 and with bracing piece 2 fixed connection that correspond, support anticreep piece 4 is located the support groove and with support groove joint, bracing piece 2 is through support anticreep block 4 and support groove joint, supporting mechanism passes through bracing piece 2, brace table 3 and support anticreep block 4 cooperation, communicate adjustable bearing structure with base 1, wherein, bracing piece 2 is used for providing the erection bracing piece 3, it is adjustable bearing structure under the effect of bracing piece 2, it is used for preventing the base from coming off from 1 to support.

Still include supporting pad 5, supporting pad 5 is equipped with four, four supporting pads 5 set up respectively in the upper end of propping up supporting bench 3 around and with propping up supporting bench 3 fixed connection, the upper end limit portion of supporting pad 5 is the arc setting, wherein, supporting pad 5 is used for providing the support for the elevator under the effect of propping up supporting bench 3, prevents that elevator and 3 production rigidity of propping up supporting bench from interfering and causing the part to damage.

Elementary buffer gear includes elementary installation piece 6, elementary buffer spring 7 and elementary collar 8, elementary installation piece 6 is equipped with at least two sets ofly, at least two sets of elementary installation piece 6 symmetry set up in the bottom both sides of brace table 3 and with brace table 3 fixed connection, elementary buffer spring 7 corresponds at least two sets of elementary installation piece 6 and is equipped with at least two sets ofly, at least two sets of elementary buffer spring 7 set up respectively in the bottom of at least two sets of elementary installation piece 6 and its upper end and corresponding elementary installation piece 6 fixed connection, elementary collar 8 corresponds at least two sets of elementary buffer spring 7 and is equipped with at least two sets ofly, at least two sets of elementary collar 8 set up respectively at the lower extreme of at least two sets of elementary buffer spring 7 and with corresponding elementary buffer spring 7 fixed connection, the lower extreme and the base 1 fixed connection of elementary collar 8, elementary buffer gear is through elementary installation piece 6, elementary buffer spring 7 and elementary collar 8 cooperation, carry out elastic connection with brace table 3 and provide the buffer support for brace table 3 with base 1, wherein, elementary installation piece 6 is used for being as the installation basis on brace table 3, provide the installation support for the upper end of elementary buffer spring 7, elementary collar 7 is used for providing the installation support for the installation of elementary cushion spring 7 and carrying out the installation of elementary collar 8 and carrying out the effect of the base together with the base installation piece 6 and be connected with the base ring 8 as the elementary installation piece 2, elementary installation base is used for elementary collar 2 as the primary installation piece 2, elementary mounting base is shown in this elementary installation piece 2, elementary installation base is connected the basic installation piece that elementary installation base is connected the basic installation piece is connected with the primary installation piece that elementary collar 8.

The buffer structure comprises at least two primary mounting blocks 6, at least two groups of primary anti-blocking columns 9 and primary mounting grooves 10, wherein the primary anti-blocking columns 9 are arranged at the lower ends of the at least two groups of primary mounting blocks 6 respectively, the upper ends of the at least two groups of primary anti-blocking columns 9 are fixedly connected with the corresponding primary mounting blocks 6, the primary anti-blocking columns 9 are located on the inner sides of the corresponding primary buffer springs 7, the lower ends of the primary anti-blocking columns 9 are located inside the corresponding primary mounting rings 8, the primary mounting grooves 10 are arranged at least two groups of primary anti-blocking columns 9, the at least two groups of primary mounting grooves 10 are arranged on the upper portion of the base 1 corresponding to the at least two groups of primary mounting rings 8, and the primary mounting grooves 10 are arranged corresponding to the primary anti-blocking columns 9, wherein the primary anti-blocking columns 9 are used as limiting structures between the primary mounting blocks 6 and the primary mounting rings 8 to prevent the primary buffer springs 7 from being blocked in the buffering process, and the primary mounting grooves 10 are used for providing motion space for the lower ends of the primary anti-blocking columns 9, so that the buffering requirements of the primary buffer mechanism are met.

The secondary buffer mechanism comprises a secondary base block 11, secondary mounting rods 12, secondary buffer springs 13 and a secondary mounting block 14, wherein at least two groups of secondary base blocks 11 are arranged on the secondary base block 11, at least two groups of secondary base blocks 11 are arranged in the middle of the upper end of the base 1 side by side at intervals and are connected with the base 1 in an embedded mode, at least two groups of secondary mounting rods 12 corresponding to the at least two groups of secondary base blocks 11 are arranged, at least two groups of secondary mounting rods 12 are respectively arranged on the upper ends of the at least two groups of secondary base blocks 11, the lower ends of the at least two groups of secondary mounting rods 12 are fixedly connected with the corresponding secondary base blocks 11, at least two groups of secondary buffer springs 13 corresponding to the at least two groups of secondary base blocks 11 are arranged on the secondary base blocks 11, the at least two groups of secondary buffer springs 13 are respectively arranged on the upper ends of the at least two groups of secondary base blocks 11, the secondary buffer springs 13 are sleeved on the outer sides of the corresponding secondary mounting rods 12, and at least two groups of secondary mounting blocks 14 corresponding to the at least two groups of secondary buffer springs 13 are arranged, at least two sets of secondary mounting blocks 14 are respectively arranged at the upper ends of at least two sets of secondary buffer springs 13 and are fixedly connected with the corresponding secondary buffer springs 13, one side of each secondary mounting block 14, which is opposite to the corresponding secondary base block 11, is provided with a mounting groove, a secondary mounting rod 12 and the corresponding secondary buffer spring 13 are positioned in the mounting grooves, the secondary buffer mechanisms are matched with each other through the secondary base blocks 11, the secondary mounting rods 12, the secondary buffer springs 13 and the secondary mounting blocks 14, and are matched with the primary buffer mechanisms to provide double buffering for the support table 3 after the support table 3 moves downwards for a certain distance, wherein the secondary base blocks 11 are used for providing mounting support for the lower ends of the secondary mounting rods 12 and the secondary buffer springs 13, the secondary mounting rods 12 are used as limiting structures in the secondary buffer mechanisms to limit the secondary buffer mechanisms and prevent the secondary buffer mechanisms from being jammed, secondary buffer spring 13 is used for carrying out elastic connection with secondary base piece 11 and secondary installation piece 14, and secondary installation piece 14 is used for constituting the elastic buffer structure jointly with secondary base piece 11 and secondary buffer spring 13 and cooperates elementary buffer gear to provide dual buffering for supporting bench 3 after supporting bench 3 downstream certain distance, the utility model discloses secondary buffer gear structure schematic diagram is shown in fig. 3.

Still include secondary protection casing 15 and guard ring groove 16, secondary protection casing 15 in the outside of secondary installation piece 14 and with the upper end fixed connection of secondary installation piece 14, the lower extreme limit portion of secondary protection casing 15 sets up with the upper end parallel and level of base 1, guard ring groove 16 corresponds secondary protection casing 15 ring and establishes in the upper end middle part of base 1, wherein, secondary protection casing 15 is used for providing the buffering as the buffering platform for supporting bench 3 under secondary buffer gear's effect when providing the protection for secondary buffer gear, guard ring groove 16 is used for providing the space of motion for the lower extreme limit portion of secondary protection casing 15.

The limiting mechanism comprises a limiting column 17 and a limiting bottom plate 18, the limiting column 17 is arranged in the middle of the inner side of the secondary protective cover 15, the upper end of the limiting column 17 is fixedly connected with the secondary protective cover 15, an accommodating groove is formed in the middle of the upper end of the base 1 corresponding to the limiting column 17, the lower end of the limiting column 17 is located in the accommodating groove, the limiting bottom plate 18 is arranged at the lower end of the limiting column 17 and is fixedly connected with the limiting column 17, the limiting bottom plate 18 is located in the accommodating groove, the limiting mechanism is matched with the limiting bottom plate 18 through the limiting column 17 and the limiting bottom plate 18 to limit the secondary protective cover 15 and prevent the secondary protective cover 15 from being deviated, the limiting column 17 is used for providing mounting support for the limiting bottom plate 18 and connecting the limiting bottom plate 18 with the secondary protective cover 15, and the limiting bottom plate 18 is used for limiting the limiting column 17 under the effect of the accommodating groove, and therefore the secondary protective cover 15 is limited to prevent the secondary protective cover 15 from being deviated.

Still include spacing cotton pad 19, spacing cotton pad 19 corresponds spacing bottom plate 18 and sets up in the inboard bottom of holding tank, and wherein, spacing cotton pad 19 is used for providing the buffering support for spacing bottom plate 18, reduces the impact force that spacing bottom plate 18 received among the buffering process.

Still include installation base plate 20, installation base plate 20 sets up in the bottom of base 1 and with base 1 fixed connection, and installation base plate 20 passes through the bolt and installs in the elevator shaft, and base 1 assembles in the elevator shaft through installation base plate 20, and wherein, installation base plate 20 is used for being the installation basis of base 1 to assemble base 1 in the elevator shaft.

Wherein, elementary installation piece 6, elementary buffer spring 7, elementary collar 8, elementary anti-sticking post 9, elementary mounting groove 10, secondary base piece 11, secondary installation pole 12, secondary buffer spring 13 and the quantity of secondary installation piece 14 can add according to the in-service use demand, and in this scheme, above-mentioned part all sets up two sets ofly.

The working principle is as follows:

assemble the device in the elevator shaft through the installation base plate 20, in the elevator operation process, when needing to cushion the elevator, the elevator descends and contacts with supporting pad 5 on the supporting bench 3 and exerts pressure to the supporting bench 3 through supporting pad 5, make supporting bench 3 move downwards, supporting bench 3 drives elementary installation piece 6 and elementary anti-sticking post 9 downstream, cushion supporting bench 3 under elementary buffer spring 7's effect simultaneously, at this moment, elementary buffer gear cushions supporting bench 3, when supporting bench 3 continues downstream and contacts with the upper end of secondary protection casing 15, supporting bench 3 exerts pressure to secondary protection casing 15, secondary protection casing 15 moves downwards, secondary protection casing 15 drives secondary installation piece 14 downstream, cushion supporting bench 3 through secondary protection casing 15 under secondary buffer spring 13's effect simultaneously, at this moment, elementary buffer gear and secondary buffer gear carry out double buffering to supporting bench 3, secondary buffer gear buffering in-process, spacing bottom plate 18 contacts with spacing cotton pad 19 in order to reduce the impact force that buffering in-process spacing bottom plate 18 received and restrict secondary buffer gear's buffer stroke.

The beneficial effects of the utility model are that simple structure, be equipped with supporting mechanism, can couple in order to constitute adjustable bearing structure with the base, can prevent to appear the obscission between bearing structure and the base, be equipped with primary buffer gear, can directly cushion supporting mechanism, be equipped with secondary buffer gear, can cooperate primary buffer gear to carry out dual buffering to supporting mechanism in the buffer process, multistage buffer gear can cushion the elevator step by step, effectively promote its buffering effect, and anti-sticking structure has among the buffer gear, can prevent buffer gear among the buffer process dead phenomenon of card from appearing, be equipped with stop gear, can carry on spacingly to buffer gear's stroke, hoisting device's support performance and its wholeness, therefore, the clothes hanger is strong in practicability.

While one embodiment of the present invention has been described in detail, the present invention is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The multi-stage buffering device for the elevator comprises a base (1), wherein the base (1) is assembled in an elevator shaft, and the multi-stage buffering device is characterized by further comprising a supporting mechanism used for providing adjustable support for the elevator, a primary buffering mechanism used for directly buffering the supporting mechanism, a secondary buffering mechanism used for providing secondary buffering for the supporting mechanism and a limiting mechanism used for limiting the secondary buffering mechanism, wherein the supporting mechanism is located at the upper end of the base (1), the primary buffering mechanism is located between the base (1) and the supporting mechanism, the secondary buffering mechanism is located in the middle of the upper end of the base (1) and located on the inner side of the supporting mechanism, and the limiting mechanism is located between the secondary buffering mechanism and the base (1).

2. The multistage buffering device for the elevator as claimed in claim 1, wherein the supporting mechanism comprises two sets of supporting rods (2), two supporting tables (3) and two supporting anti-falling blocks (4), the supporting rods (2) are arranged in two sets, each set of supporting rods (2) is composed of two rods arranged at intervals side by side, the upper portion of the base (1) corresponds to the supporting rods (2) and is provided with supporting grooves, the two sets of supporting rods (2) are symmetrically arranged on two sides of the upper end of the base (1) and are inserted into the base (1) through the supporting grooves, the supporting tables (3) are arranged on two sets of supporting rods (2) and are fixedly connected with the supporting rods (2), the supporting anti-falling blocks (4) correspond to the two sets of supporting rods (2), each set of supporting anti-falling blocks (4) is composed of two anti-falling blocks arranged at intervals side by side, the two sets of supporting anti-falling blocks (4) are respectively arranged at the lower ends of the two sets of supporting rods (2) and are fixedly connected with the corresponding supporting rods (2), the supporting anti-falling blocks (4) are located in the supporting grooves and are connected with the supporting rods (2) through the clamping-falling blocks (4).

3. The multistage buffering device for the elevator as claimed in claim 2, further comprising four supporting pads (5), wherein the four supporting pads (5) are respectively disposed around the upper end of the supporting platform (3) and fixedly connected to the supporting platform (3), and the edge portion of the upper end of the supporting pad (5) is arc-shaped.

4. The multi-stage buffer device for the elevator as claimed in claim 2, wherein the primary buffer mechanism comprises primary mounting blocks (6), primary buffer springs (7) and primary mounting rings (8), the primary mounting blocks (6) are provided with at least two sets, at least two sets of the primary mounting blocks (6) are symmetrically arranged at two sides of the bottom of the support platform (3) and are fixedly connected with the support platform (3), the primary buffer springs (7) are provided with at least two sets corresponding to the at least two sets of the primary mounting blocks (6), at least two sets of the primary buffer springs (7) are respectively arranged at the bottoms of the at least two sets of the primary mounting blocks (6) and are fixedly connected with the corresponding primary mounting blocks (6), the primary mounting rings (8) are provided with at least two sets corresponding to the at least two sets of the primary buffer springs (7), at least two sets of the primary mounting rings (8) are respectively arranged at the lower ends of the at least two sets of the primary buffer springs (7) and are fixedly connected with the corresponding primary buffer springs (7), and the lower ends of the primary mounting rings (8) are fixedly connected with the base (1).

5. The multi-stage buffer device for the elevator as claimed in claim 4, further comprising at least two sets of primary anti-sticking posts (9) and primary mounting grooves (10), wherein the primary anti-sticking posts (9) are disposed corresponding to the at least two sets of primary mounting blocks (6), the at least two sets of primary anti-sticking posts (9) are respectively disposed at the lower ends of the at least two sets of primary mounting blocks (6) and the upper ends thereof are fixedly connected with the corresponding primary mounting blocks (6), the primary anti-sticking posts (9) are disposed inside the corresponding primary buffer springs (7), the lower ends of the primary anti-sticking posts (9) are disposed inside the corresponding primary mounting rings (8), the primary mounting grooves (10) are disposed corresponding to the at least two sets of primary anti-sticking posts (9), the at least two sets of primary mounting grooves (10) are disposed corresponding to the at least two sets of primary mounting rings (8) at the upper portion of the base (1), and the primary mounting grooves (10) are disposed corresponding to the primary anti-sticking posts (9).

6. The multi-stage buffering device for the elevator as claimed in claim 4, wherein the secondary buffering mechanism comprises at least two sets of secondary base blocks (11), secondary mounting rods (12), secondary buffering springs (13) and secondary mounting blocks (14), the secondary base blocks (11) are arranged in the middle of the upper end of the base (1) at intervals, at least two sets of secondary base blocks (11) are embedded in the base (1), the secondary mounting rods (12) are arranged corresponding to the at least two sets of secondary base blocks (11), the at least two sets of secondary mounting rods (12) are respectively arranged at the upper ends of the at least two sets of secondary base blocks (11) and the lower ends thereof are fixedly connected with the corresponding secondary base blocks (11), the secondary buffering springs (13) are arranged corresponding to the at least two sets of secondary base blocks (11) and at least two sets of secondary buffering springs (13), the at least two sets of secondary buffering springs (13) are respectively arranged at the upper ends of the at least two sets of secondary base blocks (11) and the lower ends thereof are fixedly connected with the corresponding secondary base blocks (11), the at least two sets of secondary buffering springs (13) are respectively arranged at the upper ends of the at least two sets of secondary mounting rods (13), the at least two sets of secondary buffering springs (13) are respectively arranged at the outer sides of secondary mounting blocks (14), and the at least two sets of secondary mounting rods (13) are respectively arranged at least two sets of the secondary mounting rods (13), and the secondary mounting rods (13) are respectively arranged outside the secondary mounting blocks (13), and the secondary mounting rods (13) are respectively arranged at least two sets of secondary mounting rods (13), and the secondary mounting rods (13) are respectively arranged outside the secondary mounting rods (13), and the secondary mounting rods (13) are respectively arranged at least two sets of the secondary mounting rods (13) And one side of the secondary mounting block (14) opposite to the corresponding secondary base block (11) is provided with a mounting groove, and the secondary mounting rod (12) and the secondary buffer spring (13) are positioned in the mounting groove.

7. The multi-stage buffering device for the elevator as claimed in claim 6, further comprising a secondary protective cover (15) and a protective ring groove (16), wherein the secondary protective cover (15) is outside the secondary mounting block (14) and is fixedly connected with the upper end of the secondary mounting block (14), the lower edge of the secondary protective cover (15) is flush with the upper end of the base (1), and the protective ring groove (16) is annularly arranged at the middle part of the upper end of the base (1) corresponding to the secondary protective cover (15).

8. The multistage buffering device for the elevator as claimed in claim 7, wherein the limiting mechanism comprises a limiting post (17) and a limiting bottom plate (18), the limiting post (17) is disposed at the middle of the inner side of the secondary protective cover (15) and the upper end of the limiting post is fixedly connected to the secondary protective cover (15), the middle of the upper end of the base (1) is provided with a receiving groove corresponding to the limiting post (17), the lower end of the limiting post (17) is located in the receiving groove, the limiting bottom plate (18) is disposed at the lower end of the limiting post (17) and is fixedly connected to the limiting post (17), and the limiting bottom plate (18) is located in the receiving groove.

9. The multi-stage buffer device for the elevator as claimed in claim 8, further comprising a limiting cotton pad (19), wherein the limiting cotton pad (19) is disposed at the bottom of the inner side of the accommodating groove corresponding to the limiting bottom plate (18).

10. The multistage buffering device for the elevator as claimed in claim 1, further comprising a mounting base plate (20), wherein the mounting base plate (20) is arranged at the bottom of the base (1) and is fixedly connected with the base (1), the mounting base plate (20) is installed in the elevator shaft through bolts, and the base (1) is assembled in the elevator shaft through the mounting base plate (20).