CN109368439B

CN109368439B - Novel hydraulic elevator

Info

Publication number: CN109368439B
Application number: CN201810996192.4A
Authority: CN
Inventors: 贺杰; 毛建丰; 段勤丽; 贺文静
Original assignee: Anhui Xunlida Elevator Co Ltd
Current assignee: Xunlida Elevator Co ltd
Priority date: 2018-08-29
Filing date: 2018-08-29
Publication date: 2020-10-23
Anticipated expiration: 2038-08-29
Also published as: CN109368439A

Abstract

The invention relates to the field of hydraulic elevators, and discloses a novel hydraulic elevator, which comprises a plurality of first pressing plates, wherein a second pressing plate is arranged at the lower side of each first pressing plate, a plurality of telescopic rods and a plurality of first compression springs are fixedly connected between the first pressing plates and the second pressing plates, the first compression springs are sleeved at the outer sides of the telescopic rods, a buffer main body is arranged at the lower side of each second pressing plate, a first oil storage cavity is formed in the buffer main body, an insertion hole is formed in the upper end inside the first oil storage cavity, a piston column is inserted into the insertion hole, the upper end of the piston column is fixedly connected with the second pressing plate, a guide sleeve is sleeved at the outer end of the piston column, the lower end of the guide sleeve is fixedly connected with the upper surface of the buffer main body, a pressure oil plate is fixedly connected with the lower end of the piston column, the pressure plate is positioned in the first oil storage cavity, a telescopic pipe and a second compression spring, the buffering effect is good, and the elevator is more comfortable when taking.

Description

Novel hydraulic elevator

Technical Field

The invention relates to the field of hydraulic elevators, in particular to a novel hydraulic elevator.

Background

Hydraulic elevators (hydraulic lift) rely on hydraulically driven elevators. The hydraulic elevator is an elevator which makes a plunger move linearly by pressing oil into an oil cylinder through a hydraulic power source and directly or indirectly makes a car move through a steel wire rope. The hydraulic elevator is a mechanical, electric, electronic and hydraulic integrated product and consists of the following relatively independent systems which are mutually connected and matched. The elevator buffer is the last protective measure in the mechanical safety device of the elevator, is arranged in a well pit of the elevator and is positioned right below the car and a counterweight, and can play the final roles of buffering, stopping and protecting so as to prevent the car from directly colliding with the bottom. The buffer includes a spring buffer and a hydraulic buffer. The hydraulic buffer is used to reduce vibration and noise in the operation of the automatic machine, convert the kinetic energy generated by the moving object into heat energy and release the heat energy into the atmosphere, and effectively stop the object in balance during the operation.

However, the buffer effect of the elevator buffer of the existing hydraulic elevator is not good, and the comfort when the elevator is taken is not good.

Disclosure of Invention

The invention aims to provide a novel hydraulic elevator, which has good buffer effect of an elevator buffer and is more comfortable when the elevator is taken.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a novel hydraulic elevator comprises a plurality of first pressing plates, wherein a second pressing plate is arranged on the lower side of each first pressing plate, a plurality of telescopic rods and a plurality of first compression springs are fixedly connected between the first pressing plates and the second pressing plates, the first compression springs are sleeved on the outer sides of the telescopic rods, a buffer main body is arranged on the lower side of the second pressing plate, a first oil storage cavity is formed in the buffer main body, jacks are formed in the upper ends inside the first oil storage cavity, piston columns are inserted in the jacks, the upper ends of the piston columns are fixedly connected with the second pressing plates, guide sleeves are sleeved at the outer ends of the piston columns, the lower ends of the guide sleeves are fixedly connected with the upper surfaces of the buffer main body, oil pressing plates are fixedly connected with the lower ends of the piston columns and are located in the first oil storage cavities, first telescopic pipes and second compression springs are fixedly connected with the lower ends of the oil pressing plates, the first telescopic pipe is sleeved outside the second compression spring, the lower ends of the first telescopic pipe and the second compression spring are both fixedly connected with the bottom end inside the first oil storage cavity, the left end inside the first oil storage cavity is provided with a first oil inlet, the left end of the first oil storage cavity is provided with a second oil inlet, the first oil inlet is communicated with the second oil inlet, the communication part of the second oil inlet and the first oil inlet is fixedly connected with a first annular sealing washer, the inner end of the first oil inlet is fixedly connected with an oil inlet annular limiting block, a first control ball is placed between the first annular sealing washer and the oil inlet annular limiting block, the right end inside the first oil storage cavity is provided with a first oil outlet, the buffer main body is internally provided with a second oil storage cavity, and the left end inside the second oil storage cavity is provided with a second oil outlet, the second oil outlet is communicated with the first oil outlet, a second annular sealing washer is fixedly connected at the communication position of the second oil outlet and the first oil outlet, an oil outlet annular limiting block is fixedly connected at the inner end of the second oil outlet, a second control ball is placed between the oil outlet annular limiting block and the second annular sealing washer, an oil conveying pipe through hole is formed in the right end inside the second oil storage cavity, an oil conveying pipe is inserted into the inner end of the oil conveying pipe through hole, one end of the oil conveying pipe extends into the second oil storage cavity, the other end of the oil conveying pipe is connected with the left end of the adjacent buffer body and is communicated with a second oil inlet on the adjacent buffer body, the first oil storage cavity is filled with buffer oil, the liquid level of the buffer oil is equal to the lower surface of the oil pressing plate, and the outer end of the buffer body is fixedly connected with the installation annular plate, the utility model discloses a buffer, including installation annular plate, screw hole, buffer main part, multiunit threaded groove and a plurality of mounting groove, the upper end of installation annular plate is seted up a plurality of screw holes the screw hole all is located the outside of buffer main part, the downside of buffer main part is equipped with the base, the upper end of base is seted up a plurality of buffers of placing the buffer main part and is placed the recess, and is a plurality of the buffer is placed the even annular of recess and is arranged, multiunit threaded groove and a plurality of mounting groove have been seted up to the upper end of base, every group threaded groove's quantity is a plurality of, every group the threaded groove is even arranges in the outer end that the recess was placed to the buffer, threaded groove.

Furthermore, a compression sponge is fixedly connected between the first pressing plate and the second pressing plate, and the buffering effect between the first pressing plate and the second pressing plate is improved.

Furthermore, the first control ball is made of PVC plastic, the second control ball is made of glass, when the compressed second compression spring recovers elastic deformation, the oil pressing plate moves upwards, the pressure below the oil pressing plate is reduced, the first control ball moves upwards to be communicated with the first oil inlet and the second oil inlet, the second control ball is tightly attached to the second annular sealing washer to seal the first oil outlet, and the first oil outlet is not communicated with the second oil outlet.

Furthermore, it is a plurality of the equal fixedly connected with antiskid rubber pad in upper end of first clamp plate, when hydraulic elevator's car and the contact of a plurality of first clamp plates, a plurality of first clamp plates are difficult for taking place to skid bottom the car.

Furthermore, it is a plurality of the equal fixedly connected with third compression spring of upper end of buffer main part and the flexible pipe of second, third compression spring and the flexible pipe of second all are located the right side of piston post, the flexible pipe cover of second is established in the outside of third compression spring, the upper end of third compression spring and the flexible pipe of second all with the lower extreme fixed connection of second clamp plate, increase the holistic buffering effect of device, and the flexible pipe of second can effectually increase the stability when device cushions.

The working principle of the invention is as follows:

when the cage of the hydraulic elevator moves to the bottom of a well pit, the lower surface of the cage is in contact with and presses down the upper ends of a plurality of first pressing plates, a first compression spring and a compression sponge are compressed to perform primary buffering, then a piston column moves downwards, a pressure oil plate moves downwards, a second compression spring is compressed, buffer oil in a first oil storage cavity is extruded, the buffer oil extrudes a first control ball to enable the first control ball to be abutted against a first annular sealing washer, a second oil inlet is sealed, the buffer oil extrudes a second control ball to enable the second control ball to be separated from a second annular sealing washer, a first oil outlet is communicated with a second oil outlet, the buffer oil enters a second oil storage cavity through the first oil outlet and the second oil outlet to be stored, after buffering is completed, the cage ascends to be separated from the first pressing plates, the compressed second compression spring resets, the pressure oil plate ascends, the pressure at the lower end of the pressure oil plate is reduced, the second control ball is abutted to the second annular sealing washer, the first oil outlet and the second oil outlet are sealed, the first control ball moves towards one side close to the annular oil inlet limiting block, the first oil inlet is communicated with the second oil inlet, buffer oil in the second oil storage cavity of the adjacent buffer main body on the left side enters the first oil storage cavity through the oil conveying pipe, and the buffer oil is recycled in the plurality of buffer main bodies.

Compared with the prior art, the invention has the advantages that:

(1) this scheme buffering effect is good, and is more comfortable when taking the elevator.

(2) Fixedly connected with compression sponge between first clamp plate and the second clamp plate increases the buffering effect between first clamp plate and the second clamp plate.

(3) The first control ball is made of PVC plastic, the second control ball is made of glass, when the compressed second compression spring recovers elastic deformation, the oil pressing plate moves upwards, the pressure below the oil pressing plate is reduced, the first control ball moves upwards to be communicated with the first oil inlet and the second oil inlet, the second control ball is tightly attached to the second annular sealing washer to seal the first oil outlet, and the first oil outlet is not communicated with the second oil outlet.

(4) The equal fixedly connected with antiskid rubber pad in upper end of a plurality of first clamp plates, when hydraulic elevator's car and a plurality of first clamp plate contact, a plurality of first clamp plates are difficult for taking place to skid bottom the car.

(5) The upper ends of the plurality of buffer main bodies are fixedly connected with a third compression spring and a second telescopic pipe, the third compression spring and the second telescopic pipe are both positioned on the right side of the piston column, the second telescopic pipe is sleeved outside the third compression spring, the upper ends of the third compression spring and the second telescopic pipe are both fixedly connected with the lower end of the second pressing plate, the overall buffering effect of the device is improved, and the stability of the device during buffering can be effectively improved due to the second telescopic pipe.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is a schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic view of the structure at B in FIG. 1;

FIG. 4 is a top view of the present invention;

FIG. 5 is a side view of the bumper body of the present invention;

FIG. 6 is a schematic structural diagram of a base according to the present invention;

FIG. 7 is a partial perspective view of a bumper body according to the present invention.

Description of reference numerals: 1 first pressing plate, 2 compression sponge, 3 second pressing plate, 4 telescopic rods, 5 first compression springs, 6 piston columns, 7 guide sleeves, 8 buffer main bodies, 9 first oil storage cavities, 10 oil pressing plates, 11 first telescopic pipes, 12 second compression springs, 13 second oil storage cavities, 14 first oil inlets, 15 oil inlet annular limiting blocks, 16 first control balls, 17 second oil inlets, 18 first oil outlets, 19 second oil outlets, 20 oil outlet annular limiting blocks, 21 second control balls, 22 oil conveying pipes, 23 bases, 24 third compression springs, 25 second telescopic pipes, 26 mounting annular plates, 27 threaded holes, 28 threaded grooves, 29 mounting grooves and 30 buffer placing grooves.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.

Referring to fig. 1-7, a novel hydraulic elevator comprises a plurality of first pressing plates 1, a second pressing plate 3 is arranged at the lower side of the first pressing plate 1, a plurality of telescopic rods 4 and a plurality of first compression springs 5 are fixedly connected between the first pressing plates 1 and the second pressing plates 3, the first compression springs 5 are sleeved at the outer sides of the telescopic rods 4, a buffer main body 8 is arranged at the lower side of the second pressing plate 3, a first oil storage cavity 9 is formed in the buffer main body 8, an insertion hole is formed in the upper end inside the first oil storage cavity 9, a piston column 6 is inserted in the insertion hole, the upper end of the piston column 6 is fixedly connected with the second pressing plate 3, a guide sleeve 7 is sleeved at the outer end of the piston column 6, the lower end of the guide sleeve 7 is fixedly connected with the upper surface of the buffer main body 8, an oil pressing plate 10 is fixedly connected to the lower end of the piston column 6, the oil pressing plate 10 is located in the first oil storage cavity 9, a first telescopic pipe 11 and a second, the first extension tube 11 is sleeved outside the second compression spring 12, the lower ends of the first extension tube 11 and the second compression spring 12 are both fixedly connected with the bottom end inside the first oil storage cavity 9, the left end inside the first oil storage cavity 9 is provided with a first oil inlet 14, the left end of the first oil storage cavity 9 is provided with a second oil inlet 17, the first oil inlet 14 is communicated with the second oil inlet 17, the communicated part of the second oil inlet 17 and the first oil inlet 14 is fixedly connected with a first annular sealing gasket, the inner end of the first oil inlet 14 is fixedly connected with an oil inlet annular limiting block 15, a first control ball 16 is placed between the first annular sealing gasket and the oil inlet annular limiting block 15, the right end inside the first oil storage cavity 9 is provided with a first oil outlet 18, the buffer body 8 is internally provided with a second oil storage cavity 13, and the left end inside the second oil storage cavity 13 is provided with a second oil outlet 19, a second oil outlet 19 is communicated with the first oil outlet 18, a second annular sealing washer is fixedly connected at the communication position of the second oil outlet 19 and the first oil outlet 18, an inner end of the second oil outlet 19 is fixedly connected with an oil outlet annular limiting block 20, a second control ball 21 is placed between the oil outlet annular limiting block 20 and the second annular sealing washer, an oil conveying pipe through hole is formed in the right end inside the second oil storage cavity 13, an oil conveying pipe 22 is inserted into the inner end of the oil conveying pipe through hole, one end of the oil conveying pipe 22 extends into the second oil storage cavity 13, the other end of the oil conveying pipe 22 is connected with the left end of the adjacent buffer main body 8 and is communicated with a second oil inlet 17 on the adjacent buffer main body 8, buffer oil is filled in the first oil storage cavity 9, the liquid level of the buffer oil is equal to the lower surface of the oil pressing plate 10, and an annular mounting plate 26 is fixedly connected to the outer end, the upper end of the mounting annular plate 26 is provided with a plurality of threaded holes 27 and a plurality of threaded holes 27 which are all positioned at the outer side of the buffer main body 8, the lower side of the buffer main body 8 is provided with a base 23, the upper end of the base 23 is provided with a plurality of buffer placing grooves 30 for placing the buffer main body 8, the plurality of buffer placing grooves 30 are uniformly and annularly arranged, the upper end of the base 23 is provided with a plurality of groups of threaded grooves 28 and a plurality of mounting grooves 29, the number of each group of threaded grooves 28 is a plurality, each group of threaded grooves 28 is uniformly arranged at the outer end of the buffer placing grooves 30, the threaded grooves 28 are matched with the threaded holes 27, the plurality of buffer main bodies 8 are respectively placed into the plurality of buffer placing grooves 30, then screws penetrate through the threaded holes 27 to be in threaded connection with the threaded grooves 28 at the upper end of the base 23, then the screws are fixedly connected with the bottom of the car through the mounting grooves, the buffering effect is good, and the elevator is more comfortable when taking.

A compression sponge 2 is fixedly connected between the first pressing plate 1 and the second pressing plate 3, the buffering effect between the first pressing plate and the second pressing plate is increased, the first control ball 16 is made of PVC plastic, the second control ball 21 is made of glass, when the compressed second compression spring recovers elastic deformation, the oil pressing plate moves upwards, the pressure below the oil pressing plate is reduced, the first control ball moves upwards and is communicated with the first oil inlet and the second oil inlet, the second control ball is tightly attached to the second annular sealing washer to seal the first oil outlet, the first oil outlet is not communicated with the second oil outlet, the upper ends of the first pressing plates 1 are fixedly connected with anti-skidding rubber pads, when a cage of the hydraulic elevator is in contact with the first pressing plates, the first pressing plates are not easy to skid with the bottom of the cage, the upper ends of the buffer main bodies 8 are fixedly connected with a third compression spring 24 and a second telescopic pipe 25, the third compression spring 24 and the second extension tube 25 are both positioned on the right side of the piston column 6, the second extension tube 25 is sleeved on the outer side of the third compression spring 24, the upper ends of the third compression spring 24 and the second extension tube 25 are both fixedly connected with the lower end of the second pressing plate 3, the overall buffering effect of the device is improved, and the stability of the device during buffering can be effectively improved by the second extension tube 25.

When the cage of the hydraulic elevator moves to the bottom of a hoistway pit, the lower surface of the cage contacts with the upper ends of a plurality of first pressing plates 1 and presses the first pressing plates downwards, the first compression springs 5 and the compression sponge 2 are compressed to perform primary buffering, then the piston columns 6 move downwards, the oil pressing plates 10 move downwards, the second compression springs 12 are compressed, the buffer oil in the first oil storage cavity 9 is extruded, the buffer oil extrudes the first control balls 16 to enable the first control balls 16 to be abutted against the first annular sealing gaskets, the second oil inlets 17 are sealed, the buffer oil extrudes the second control balls 21 to enable the second control balls 21 to be separated from the second annular sealing gaskets, the first oil outlets 18 and the second oil outlets 19 are communicated, the buffer oil enters the second oil storage cavity 13 through the first oil outlets 18 and the second oil outlets 19 to be stored, after buffering is completed, the cage rises to be separated from the first pressing plates 1, and the compressed second compression springs 12 reset, the oil pressing plate 10 rises, the pressure at the lower end of the oil pressing plate 10 is reduced, the second control ball 21 abuts against the second annular sealing washer, the first oil outlet 18 and the second oil outlet 19 are sealed, the first control ball 16 moves towards one side close to the annular oil inlet limiting block 15, the first oil inlet 14 is communicated with the second oil inlet 17, buffer oil in the second oil storage cavity 13 of the left adjacent buffer main body 8 enters the first oil storage cavity 9 through the oil conveying pipe 22, the buffer oil is recycled in the plurality of buffer main bodies 8, the buffering effect of the hydraulic elevator is good, the heat generated in the buffering process is partially converted into the kinetic energy of the buffer oil, and the heat accumulation is reduced.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel hydraulic elevator comprises a plurality of first pressing plates (1), and is characterized in that: the oil-gas separation device is characterized in that a second pressing plate (3) is arranged on the lower side of the first pressing plate (1), a plurality of telescopic rods (4) and a plurality of first compression springs (5) are fixedly connected between the first pressing plate (1) and the second pressing plate (3), the first compression springs (5) are sleeved on the outer sides of the telescopic rods (4), a buffer main body (8) is arranged on the lower side of the second pressing plate (3), a first oil storage cavity (9) is formed in the buffer main body (8), jacks are formed in the upper end inside the first oil storage cavity (9), piston columns (6) are inserted into the jacks, the upper ends of the piston columns (6) are fixedly connected with the second pressing plate (3), guide sleeves (7) are sleeved on the outer ends of the piston columns (6), the lower ends of the guide sleeves (7) are fixedly connected with the upper surface of the buffer main body (8), and oil pressing plates (10) are fixedly connected with the lower ends of the piston columns (6), the oil pressing plate (10) is positioned in the first oil storage cavity (9), the lower end of the oil pressing plate (10) is fixedly connected with a first telescopic pipe (11) and a second compression spring (12), the first telescopic pipe (11) is sleeved on the outer side of the second compression spring (12), the lower ends of the first telescopic pipe (11) and the second compression spring (12) are fixedly connected with the bottom end inside the first oil storage cavity (9), the left end inside the first oil storage cavity (9) is provided with a first oil inlet (14), the left end of the first oil storage cavity (9) is provided with a second oil inlet (17), the first oil inlet (14) is communicated with the second oil inlet (17), a first annular sealing washer is fixedly connected at the communication position of the second oil inlet (17) and the first oil inlet (14), the inner end of the first oil inlet (14) is fixedly connected with an annular limiting block (15), a first control ball (16) is placed between the first annular sealing washer and the annular oil inlet limiting block (15), a first oil outlet (18) is formed in the right end inside the first oil storage cavity (9), a second oil storage cavity (13) is formed in the buffer main body (8), a second oil outlet (19) is formed in the left end inside the second oil storage cavity (13), the second oil outlet (19) is communicated with the first oil outlet (18), a second annular sealing washer is fixedly connected to the communication position of the second oil outlet (19) and the first oil outlet (18), an annular oil outlet limiting block (20) is fixedly connected to the inner end of the second oil outlet (19), a second control ball (21) is placed between the annular oil outlet limiting block (20) and the second annular sealing washer, and an oil pipe through hole is formed in the right end inside the second oil storage cavity (13), an oil delivery pipe (22) is inserted into the inner end of the oil delivery pipe through hole, one end of the oil delivery pipe (22) extends into the second oil storage cavity (13), the other end of the oil delivery pipe (22) is connected with the left end of the adjacent buffer main body (8) and is communicated with a second oil inlet (17) on the adjacent buffer main body (8), buffer oil is filled in the first oil storage cavity (9), the liquid level of the buffer oil is level with the lower surface of the oil pressing plate (10), the outer end of the buffer main body (8) is fixedly connected with an installation annular plate (26), the upper end of the installation annular plate (26) is provided with a plurality of threaded holes (27), the plurality of threaded holes (27) are all located on the outer side of the buffer main body (8), the lower side of the buffer main body (8) is provided with a base (23), the upper end of the base (23) is provided with a plurality of buffer placing grooves (30) for placing the buffer main body (8), the buffer placing grooves (30) are uniformly and annularly arranged, a plurality of groups of threaded grooves (28) and a plurality of mounting grooves (29) are formed in the upper end of the base (23), the number of each group of threaded grooves (28) is multiple, each group of threaded grooves (28) are uniformly distributed at the outer end of the buffer placing groove (30), and the threaded grooves (28) are matched with the threaded holes (27);

the oil pressing plate (10) moves downwards, the buffer oil extrudes the first control ball (16) to enable the first control ball (16) to be abutted against the first annular sealing washer, the second oil inlet (17) is closed, the oil pressing plate (10) ascends, the first control ball (16) moves towards one side close to the annular oil inlet limiting block (15), and the first oil inlet (14) is communicated with the second oil inlet (17);

the oil pressing plate (10) moves downwards, the buffer oil extrudes the second control ball (21) to enable the second control ball (21) to be separated from the second annular sealing washer, the first oil outlet (18) is communicated with the second oil outlet (19), the oil pressing plate (10) ascends, the pressure at the lower end of the oil pressing plate (10) is reduced, the second control ball (21) abuts against the second annular sealing washer, and the first oil outlet (18) and the second oil outlet (19) are closed.

2. The new hydraulic elevator according to claim 1, characterized in that: and a compression sponge (2) is fixedly connected between the first pressing plate (1) and the second pressing plate (3).

3. The new hydraulic elevator according to claim 1, characterized in that: the first control ball (16) is made of PVC plastic, and the second control ball (21) is made of glass.

4. The new hydraulic elevator according to claim 1, characterized in that: the upper ends of the first pressing plates (1) are fixedly connected with anti-skidding rubber pads.

5. The new hydraulic elevator according to claim 1, characterized in that: the buffer is characterized in that the upper end of the buffer main body (8) is fixedly connected with a third compression spring (24) and a second telescopic pipe (25), the third compression spring (24) and the second telescopic pipe (25) are located on the right side of the piston column (6), the second telescopic pipe (25) is sleeved on the outer side of the third compression spring (24), and the upper ends of the third compression spring (24) and the second telescopic pipe (25) are fixedly connected with the lower end of the second pressing plate (3).