Elevator based on Archimedes spiral disc push rod and assembling method thereof

Abstract

The invention discloses an elevator based on an Archimedes spiral disc push rod and an assembling method thereof.The elevator comprises a driving mechanism and a shell, a spiral disc, a working push rod and a limiting guide rail are arranged in the shell, the driving mechanism drives the spiral disc to rotate, and the spiral disc is provided with an Archimedes spiral guide path; the working push rod is provided with a transmission part matched with the guide path and slidably arranged along the limiting guide rail, when the driving mechanism drives the spiral disc to rotate, the transmission part is matched with the guide path to move so as to drive the working push rod to slide along the limiting guide rail, and the shell is provided with a guide opening matched with the working push rod to stretch out. The lifting device has the advantages of being reliable in lifting effect, small in friction stress of the push rod and convenient to maintain.

Description

Technical Field

[0001] The invention relates to the technical field of push rod type elevators, in particular to an elevator based on an Archimedean spiral disk push rod and an assembly method thereof. Background Art

[0002] Screw transmission is commonly used in mechanical lifting mechanisms on the current market. For example, in the Chinese patent literature, there is a utility model patent named "Quick Release Structure for Medical Push Rod" with patent number CN2023231956317 authorized and announced on September 13, 2024. The application includes a casing, a screw and a motor are provided on the casing, and a worm gear is provided on the motor for driving the screw to rotate. The motor and the worm gear are connected through a worm gear transmission, and a worm gear linkage is provided in the worm gear, and the worm gear sleeve is arranged on the outer periphery of the worm gear linkage; one end of the screw is connected to the telescopic sleeve, and the other end of the screw is provided with a screw coupling, and the screw coupling is connected to the worm gear linkage in driving manner, and the casing is provided with a clutch mechanism for driving the worm gear linkage to separate from the screw coupling.

[0003] The shortcomings of the existing technology are: 1. The T-type screw transmission has low efficiency and is easily worn and cannot be repaired; 2. The ball screw has low bearing capacity and is easily affected by environmental factors and has a lifespan that is difficult to maintain; 3. The screw transmission cannot withstand radial forces. Summary of the invention

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a lifter based on an Archimedean spiral disk push rod and an assembly method thereof, which has reliable lifting effect, small friction force on the push rod and convenient maintenance.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions.

[0006] The invention discloses an elevator based on an Archimedean spiral disk and a push rod, comprising a driving mechanism and a shell. A spiral disk, a working push rod and a limiting guide rail are arranged in the shell. The driving mechanism drives the spiral disk to rotate. The spiral disk is provided with a guide path in the shape of an Archimedean spiral. The working push rod is provided with a transmission part cooperating with the guide path. The working push rod is slidingly arranged along the limiting guide rail. When the driving mechanism drives the spiral disk to rotate, the transmission part moves in coordination with the guide path to drive the working push rod to slide along the limiting guide rail. The shell is provided with a guide opening cooperating with the extension of the working push rod.

[0007] The present application adopts an Archimedes spiral disk in combination with a push rod. By driving the Archimedes spiral disk to rotate, the guide path cooperates with the transmission part to drive the push rod to slide along the limit guide rail. The elevator can withstand a certain radial force when working. The vulnerable structure of the elevator is the transmission part. The strength of the Archimedes spiral disk and the working push rod are both relatively high. Maintenance only requires replacing the transmission part, which is more convenient than the nut-screw combination.

[0008] Preferably, an Archimedean spiral guide groove is provided in the spiral disk as a guide path, and the transmission part on the working push rod is a transmission pin that matches the guide groove. The transmission pin is easy to replace, which can ensure the maintenance efficiency of the elevator.

[0009] As a preferred embodiment, the working push rod is provided with a plurality of transmission pins which are matched with the guide groove at the same time. The working push rod and the guide groove are matched with a plurality of transmission pins at the same time, so the stability is high and the transmission is more reliable.

[0010] Preferably, the spiral disk is coaxially connected with a worm wheel, the worm wheel is matched with a worm, and the driving mechanism is connected with the worm and drives the worm to rotate. The elevator is combined with the worm wheel and worm, has a self-locking function, the transmission is more reliable, and the supporting effect of the elevator is more stable.

[0011] Preferably, the working push rod is provided with four annular side surfaces, two opposite side surfaces of the four side surfaces of the working push rod are respectively provided with a plurality of first rolling elements, at least one of the other two opposite side surfaces is provided with a plurality of second rolling elements, and the limiting guide rail is provided corresponding to the first rolling element and the second rolling element. The first rolling element and the second rolling element cooperate to realize the support of the four side surfaces of the working push rod, and the sliding friction between the working push rod and the limiting guide rail is completely converted into rolling friction, thereby improving the reliability of the working push rod.

[0012] Preferably, a plurality of second rolling members are arranged on one side of the working push rod, and the limiting guide rails include a first limiting rail and a second limiting rail corresponding to both sides of the second rolling member, and the first limiting rail and the second limiting rail support the first rolling member on one side of the working push rod, and an auxiliary limiting rail corresponding to the first limiting rail and the second limiting rail is arranged on one side of the working push rod relative to the first limiting rail and the second limiting rail. The first limiting rail and the second limiting rail support one side of the first rolling member while clamping and limiting the second rolling member, and cooperate with the auxiliary limiting rail to support the other side of the first rolling member, so as to realize reliable clamping and guiding of the four sides of the working push rod, and the working push rod has low friction and high stability.

[0013] Preferably, two first rolling members are arranged on one side of the working push rod, and the planes where the axes of the two first rolling members are located intersect with the axis of the working push rod. One of the two first rolling members cooperates with one of the first limiting rail and the second limiting rail, and the other cooperates with the auxiliary limiting rail, which can ensure the rolling support of the first rolling member, avoid the situation of sliding support and gap retention, ensure the stability of the working push rod, and reduce friction.

[0014] Preferably, a connecting plate is provided on the side of the working push rod, and a connecting groove is provided on the connecting plate which is inclined relative to the working push rod, and one of the first rolling members is adjustably arranged in the connecting groove. The position of one of the rolling members is adjustable, so that the spacing between the two first rolling members on one side of the working push rod is adjustable, so as to realize the limit rail through which the two rolling members can respectively pass on one side.

[0015] Preferably, the second rolling elements are arranged in two parallel rows, and the two rows of second rolling elements are arranged at intervals. The two rows of second rolling elements will not interfere with each other, and the two rows of second rolling elements cooperate with the first limiting rail and the second limiting rail respectively to ensure the reliability of the first limiting rail and the second limiting rail in radially guiding the second rolling elements.

[0016] An assembly method of an elevator based on the above Archimedean spiral disk push rod mechanism, wherein the housing comprises a main housing and a cover plate, the cover plate is located on the side where the first rolling element of the working push rod is arranged, and the assembly method comprises the following steps: A. The first limit rail, the second limit rail and the auxiliary limit rail are pre-installed in the main housing; B. Assemble the working push rod, and extend the working push rod into the main housing in conjunction with the limit guide rail. Match the transmission part with the guide path, and rotate the spiral disk to push the working push rod into the main housing until the working push rod extends out of the guide opening; C. Adjust the position of the first rolling element along the connecting groove. Since the connecting groove is tilted relative to the working push rod, the height position of the first rolling element in the connecting groove relative to the other first rolling element changes. Adjust until the two first rolling elements on one side of the working push rod are respectively matched with the second limit rail and the auxiliary limit rail, and the working push rod maintains a clearance state relative to the guide port. D. Connect the cover plate and the main shell.

[0017] When the working push rod is working, the part located inside the shell does not shake, the pushing action is reliable, the stability is high, the overall disassembly and assembly of the elevator is convenient, and the transmission pin is easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure inside the shell of an elevator based on the Archimedean spiral disk push rod disclosed in one embodiment of the present invention.

[0019] Figure 2 It is a schematic structural diagram of a lift based on an Archimedean spiral disk push rod combined with a worm gear disclosed in one of the embodiments of the present invention.

[0020] Figure 3 It is a structural schematic diagram of a transmission part in an elevator based on an Archimedean spiral disk push rod disclosed in one of the embodiments of the present invention.

[0021] Figure 4 It is another structural schematic diagram of the transmission part in the elevator based on the Archimedean spiral disk push rod disclosed in one of the embodiments of the present invention.

[0022] Figure 5 It is a structural schematic diagram of the cooperation between the first rolling element, the second rolling element and the limiting guide rail in an elevator based on the Archimedean spiral disk push rod disclosed in one of the embodiments of the present invention.

[0023] Figure 6 The present invention is a schematic structural diagram of a working push rod in a lift based on an Archimedean spiral disk push rod disclosed in one of the embodiments of the present invention.

[0024] Figure 7 It is another structural schematic diagram of a working push rod in a lift based on an Archimedean spiral disk push rod disclosed in one of the embodiments of the present invention.

[0025] Figure 8 It is a structural schematic diagram of a lift based on an Archimedean spiral disk push rod disclosed in one of the embodiments of the present invention.

[0026] In the figure: spiral disk 1, working push rod 2, first limit rail 3, second limit rail 4, auxiliary limit rail 5, guide groove 6, transmission pin 7, rolling component 8, worm wheel 9, worm 10, connecting shaft 11, first rolling member 12, second rolling member 13, rotating shaft 14, connecting plate 15, connecting groove 16, shell 17, main shell 18, cover plate 19, guide port 20. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The terms "including" and "having" and any variations thereof in the specification and claims of the present invention are intended to cover non-exclusive inclusions. For example, a method or product comprising a series of technical features is not necessarily limited to those technical features clearly listed, but may also include other technical features that are not clearly listed and can be included in the method or product.

[0029] In the description of the present invention, it is necessary to understand that the technical features defined by the terms "first", "second" and the like with sequential concepts are only for the purpose of clearly describing the defined technical features so that the defined technical features can be clearly distinguished from other technical features, but do not represent such naming in actual implementation, and therefore cannot be understood as a limitation of the present invention.

[0030] One embodiment of the present invention discloses a lift based on an Archimedean spiral disk push rod, such as Figures 1 to 8As shown, it includes a driving mechanism and a housing 17, which is not shown in the figure. The housing 17 is provided with a spiral disk 1, a working push rod 2 and a limiting guide rail, the driving mechanism drives the spiral disk 1 to rotate, the spiral disk 1 is provided with a guide path in the shape of an Archimedean spiral, the working push rod 2 is provided with a transmission part that cooperates with the guide path, and the working push rod 2 is slidably arranged along the limiting guide rail. When the driving mechanism drives the spiral disk 1 to rotate, the transmission part cooperates with the guide path to move to drive the working push rod 2 to slide along the limiting guide rail, and the housing 17 is provided with a guide port 20 that cooperates with the working push rod 2 to extend.

[0031] The present application adopts an Archimedes spiral disk 1 in combination with a push rod. By driving the Archimedes spiral disk 1 to rotate, the guide path cooperates with the transmission part to drive the push rod to slide along the limit guide rail. The elevator can withstand a certain radial force when working. The vulnerable structure of the elevator is the transmission part. The strength of the Archimedes spiral disk 1 and the working push rod 2 are both relatively high. Maintenance only requires replacing the transmission part, which is more convenient than the nut-screw combination.

[0032] The driving mechanism provides rotational power, such as an electric motor, etc., and the driving mechanism drives the spiral disk 1 to rotate. The spiral disk 1 is rotatably set in the housing 17, and the limiting guide rail is fixedly set in the housing 17. The working push rod 2 is in the shape of a rectangular parallelepiped. The limiting guide rail guides the working push rod 2 in a straight line, and the working push rod 2 and the limiting guide rail are slidably matched. The matching of the spiral disk 1 and the working push rod 2 is achieved through the matching of the Archimedean spiral guide path and the transmission part. The guide path can be a protruding rib or a concave chute. When the guide path is a concave chute, the transmission part adopts a convex pin shaft or roller, and the transmission part extends into the chute to form a transmission match. When the guide path is a rib, the transmission part can adopt rollers clamped on both sides of the rib.

[0033] When the spiral disk 1 rotates, the guide path rotates together, and the transmission part keeps matching with the guide path. At the same time, due to the limitation of the working push rod 2 by the limiting guide rail, the working push rod 2 and the spiral disk 1 slide in a straight line along the limiting slide rail when they move in coordination, thereby realizing the extension and retraction of the working push rod 2 and the lifting of the elevator.

[0034] As one of the embodiments of the present invention, a lift based on an Archimedean spiral disk 1 push rod is disclosed, such as Figure 2As shown, it includes a driving mechanism and a housing 17, wherein a spiral disk 1, a working push rod 2 and a limiting guide rail are arranged in the housing 17, the driving mechanism drives the spiral disk 1 to rotate, the spiral disk 1 is provided with a guide path in the shape of an Archimedes spiral, the working push rod 2 is provided with a transmission part matched with the guide path, the working push rod 2 is arranged to slide along the limiting guide rail, when the driving mechanism drives the spiral disk 1 to rotate, the transmission part matches the guide path to move to drive the working push rod 2 to slide along the limiting guide rail, and the housing 17 is provided with a guide opening 20 for matching the extension of the working push rod 2. An Archimedes spiral guide groove 6 is arranged in the spiral disk 1 as a guide path, and the transmission part on the working push rod 2 is a transmission pin 7 matched with the guide groove 6. The working push rod 2 is provided with two transmission pins 7 that match the guide groove 6 at the same time. The two transmission pins 7 respectively match different circles of the guide groove 6, expand the matching point position of the working push rod 2 and the guide groove 6, ensure the working stability of the rear end of the working push rod 2, and the two transmission pins 7 also have higher structural performance than the single transmission pin 7.

[0035] As a form of implementation, Figure 3 The transmission pin 7 shown is a pin fixed on the working push rod 2.

[0036] As another implementation, Figure 4 The transmission pin 7 shown in the figure adopts a pin shaft fixed on the working push rod 2, and a rolling component 8 such as a rolling bearing is sleeved on the pin shaft to reduce the sliding friction between the transmission pin 7 and the guide groove 6.

[0037] As a simple replacement for the above solution, the number of the driving pins 7 may be three, four or other numbers.

[0038] In this embodiment, the spiral disk 1 is coaxially connected with a worm wheel 9, the worm wheel 9 is matched with a worm 10, and the driving mechanism is connected to the worm 10 and drives the worm 10 to rotate. The spiral disk 1 and the worm wheel 9 are connected by a connecting shaft 11, and the connecting shaft 11 is rotatably connected to the housing 17, so that the worm wheel 9 and the worm 10 are located outside the housing 17, so that the worm wheel 9 and the worm 10 can adopt an integral worm wheel 9 worm 10 reduction box, and the rotating mechanism adopts a rotating motor, the motor shaft of the rotating motor is connected to the worm 10, and the output shaft of the worm wheel 9 is fixedly connected to the connecting shaft 11, and the reduction box and the rotating mechanism can be disassembled and replaced separately relative to the housing 17.

[0039] As one of the embodiments of the present invention, a lift based on an Archimedean spiral disk 1 push rod is disclosed, such as Figure 1 , Figure 2 and Figure 5As shown, the working push rod 2 is provided with four annular side surfaces, and the cross-sectional shape of the working push rod 2 is a rectangle. The four side surfaces of the working push rod 2 correspond to the four edges of the rectangle of the cross-sectional shape of the working push rod 2. Two opposite side surfaces among the four side surfaces of the working push rod 2 are respectively provided with a plurality of first rolling elements 12, and one of the other two opposite side surfaces is provided with a plurality of second rolling elements 13. The limiting guide rails are provided corresponding to the first rolling elements 12 and the second rolling elements 13. The first rolling elements 12 and the second rolling elements 13 cooperate to realize the support of the four side surfaces of the working push rod 2, and completely convert the sliding friction between the working push rod 2 and the limiting guide rail into rolling friction, thereby improving the reliability of the working push rod 2. As shown Figure 1 , Figure 2 and Figure 5 As shown, the second rolling element 13 is provided with two parallel and spaced rows, each row is provided with four second rolling elements 13, and the circumferential side of the second rolling element 13 is exposed outside the side of the working push rod 2 and cooperates with the limiting guide rail to realize the overhead setting of the limiting guide rail and the working push rod 2 on the side where the two first rolling elements 12 are located. The circumferential sides of several first fixed bearings also extend outside the working push rod 2, forming the overhead of the other two surfaces of the working push rod 2, so that the limiting guide rail and the working push rod 2 have no direct contact, reducing the influence of friction on the working stability of the working push rod 2 and reducing the wear of the working push rod 2. In this embodiment, the first rolling element 12 and the second rolling element 13 use rolling bearings. As a simple replacement for the above solution, the first rolling element 12 and the second rolling element 13 use rolling wheels.

[0040] Specifically, eight second rolling elements 13 arranged in two rows are arranged on one side of the working push rod 2, and the axes of the eight second rolling elements 13 are parallel. The limiting guide rail includes a first limiting rail 3 and a second limiting rail 4 corresponding to the two sides of the second rolling elements 13, and the first limiting rail 3 and the second limiting rail 4 are respectively matched with a row of second rolling elements 13. In addition, the first limiting rail 3 and the second limiting rail 4 respectively support two first rolling elements 12 on one side of the working push rod 2, and the plane where the axes of the two first rolling elements 12 are located is parallel to the first limiting rail 3 or the second limiting rail 4. The side of the working push rod 2 relative to the first limiting rail 3 and the second limiting rail 4 is provided with an auxiliary limiting rail 5 corresponding to the first limiting rail 3 and the second limiting rail 4 respectively. The side of the working push rod 2 is fixedly provided with a rotating shaft 14 to realize the rotation sleeve of the first rolling element 12 and the second rolling element 13. The auxiliary limiting rail 5 can limit the upper side of the first rolling member 12. The first limiting rail 3 and the second limiting rail 4 support one side of the first rolling member 12 while clamping and limiting the second rolling member 13. The auxiliary limiting rail 5 cooperates with the other side of the first rolling member 12 to achieve reliable clamping and guiding of the four sides of the working push rod 2. The working push rod 2 has low friction and high stability.

[0041] As one of the embodiments of the present invention, a lift based on an Archimedean spiral disk 1 push rod is disclosed, in which two first rolling elements 12 are arranged on one side of the working push rod 2, and the difference from the previous embodiment is only that, Figure 6 As shown, the plane where the axes of the two first rolling elements 12 are located intersects with the axis of the working push rod 2. One of the two first rolling elements 12 cooperates with one of the first limiting rail 3 and the second limiting rail 4, and the other cooperates with the auxiliary limiting rail 5, which can ensure the rolling support of the first rolling element 12, avoid the situation of sliding support and gap retention, ensure the stability of the working push rod 2, and reduce friction.

[0042] As one of the embodiments of the present invention, a lift based on an Archimedean spiral disk 1 push rod is disclosed, which is different from the previous embodiment only in that, Figure 7 As shown, a connecting plate 15 is provided on the side of the working push rod 2, and a connecting groove 16 is provided on the connecting plate 15, which is inclined relative to the working push rod 2. The angle between the connecting groove 16 and the lower side of the working push rod 2 is less than 5 degrees, and it has self-locking properties, and one of the first rolling members 12 is adjustable in the connecting groove 16. Exemplarily, a sliding block whose tightness is adjusted by a bolt is provided in the connecting groove 16, and the rotating shaft 14 corresponding to the first rolling member 12 is fixedly connected to the sliding block, so that the position of the first rolling member 12 is adjustable, so that the spacing of the two first rolling members 12 on one side of the working push rod 2 in the direction of the vertical auxiliary limit rail 5 is adjustable, and the two first rolling members 12 are respectively matched with different limit rails on one side. In this embodiment, the first rolling member 12 is located at the interval of the adjacent second rolling member 13, and the end of the connecting groove 16 facing the fixed position of the first rolling member 12 is the end of the first rolling member 12 closest to the second rolling member 13, so that the position-adjustable first rolling member 12 will not interfere with the second rolling member 13 when the position is adjusted along the connecting groove 16. The transmission pin 7 is arranged on the side where the auxiliary limit rail 5 is located, that is, the transmission pin 7 and the second rolling member 13 are respectively located on the opposite sides of the working push rod 2. The first rolling member 12 adopts a hollow rolling wheel, which can operate the bolt on the sliding block from the hollow part to adjust the tightness of the sliding block and the connecting groove 16, and adjust the position of the first rolling member 12.

[0043] An assembly method of a lifter of the Archimedean spiral disk 1 push rod mechanism based on the above embodiment, as follows Figure 8 In the example of a lift shown in the figure, the housing 17 includes a main housing 18 and a cover plate 19, and the cover plate 19 is located on the side of the working push rod 2 where the first rolling element 12 is arranged, that is, the cover plates 19 corresponding to the installation position of the first fixed bearing are arranged on two opposite sides of the main housing 18. The assembly method includes the following steps: A. The first limit rail 3, the second limit rail 4 and the auxiliary limit rail 5 are pre-installed in the main housing 18; the spiral disk 1 is pre-installed in the main housing 18; B. Assemble the working push rod 2, and extend one end of the working push rod 2 into the main housing 18 in cooperation with the limiting guide rail. Coordinate the transmission part with the guide path, and rotate the spiral disk 1 to push the working push rod 2 into the main housing 18 until the working push rod 2 extends out of the guide opening 20; C. Adjust the position of the first rolling member 12 along the connecting groove 16. Since the connecting groove 16 is tilted relative to the working push rod 2, the height position of the first rolling member 12 in the connecting groove 16 relative to the other first rolling member 12 changes. Adjust until the two first rolling members 12 on one side of the working push rod 2 are respectively matched with the second limit rail 4 and the auxiliary limit rail 5, and the working push rod 2 maintains a clearance state relative to the guide opening 20. D. Connect the cover plate 19 and the main housing 18 with screws.

[0044] When the working push rod 2 is working, the part located in the housing 17 does not shake, the pushing action is reliable, the stability is high, the overall disassembly and assembly of the elevator is convenient, and the transmission pin 7 is easy to maintain. Figure 8 In the illustrated embodiment, two working push rods 2 are arranged in a straight line on both sides of the spiral disk 1. The two working push rods 2 extend and retract synchronously, thereby improving the lifting speed and lifting stroke of the elevator.

[0045] As a simple replacement for this embodiment, the working push rods 2 can be provided in other numbers such as three or four.

Claims

1. A lift based on an Archimedean spiral disk push rod, characterized in that: It includes a driving mechanism and a shell. A spiral disk, a working push rod and a limiting guide rail are arranged in the shell. The driving mechanism drives the spiral disk to rotate. The spiral disk is provided with a guide path in the shape of an Archimedean spiral. The working push rod is provided with a transmission part cooperating with the guide path. The working push rod is slidably arranged along the limiting guide rail. When the driving mechanism drives the spiral disk to rotate, the transmission part cooperates with the guide path to move to drive the working push rod to slide along the limiting guide rail. The shell is provided with a guide opening cooperating with the working push rod to extend.

2. The lift based on Archimedean spiral disk push rod according to claim 1 is characterized in that: An Archimedean spiral guide groove is arranged in the spiral disk as a guide path, and the transmission part on the working push rod is a transmission pin matching the guide groove.

3. The lift based on Archimedean spiral disk push rod according to claim 2 is characterized in that: The working push rod is provided with a plurality of transmission pins which simultaneously cooperate with the guide grooves.

4. The lift based on Archimedean spiral disk push rod according to claim 1 is characterized in that: The spiral disk is coaxially connected with a worm wheel, the worm wheel is matched with a worm, and the driving mechanism is connected with the worm wheel and drives the worm wheel to rotate.

5. A lift based on an Archimedean screw disk push rod according to any one of claims 1 to 4, characterized in that: The working push rod is provided with four annular side surfaces, two opposite side surfaces of the four side surfaces of the working push rod are respectively provided with a plurality of first rolling elements, at least one of the other two opposite side surfaces is provided with a plurality of second rolling elements, and the limiting guide rails are provided corresponding to the first rolling elements and the second rolling elements.

6. The lift based on Archimedean spiral disk push rod according to claim 5 is characterized in that: A plurality of second rolling members are arranged on one side of the working push rod, and the limiting guide rail includes a first limiting rail and a second limiting rail corresponding to both sides of the second rolling member, and the first limiting rail and the second limiting rail support the first rolling member on one side of the working push rod, and an auxiliary limiting rail corresponding to the first limiting rail and the second limiting rail is arranged on one side of the working push rod relative to the first limiting rail and the second limiting rail.

7. The lift based on Archimedean spiral disk push rod according to claim 5 is characterized in that: Two first rolling elements are arranged on one side of the working push rod, and the planes where the axes of the two first rolling elements are located intersect with the axis of the working push rod.

8. The lift based on Archimedean spiral disk push rod according to claim 7, characterized in that: A connecting plate is provided on the side of the working push rod, and a connecting groove is provided on the connecting plate which is inclined relative to the working push rod, wherein one of the first rolling members is adjustably arranged in the connecting groove.

9. The lift based on Archimedean spiral disk push rod according to claim 5, characterized in that: The second rolling elements are arranged in two parallel rows, and the two rows of second rolling elements are arranged at intervals.

10. An assembly method for an elevator based on the Archimedean screw disk push rod mechanism according to claim 8, characterized in that: The housing comprises a main housing and a cover plate, wherein the cover plate is located on the side of the working push rod where the first rolling element is arranged, and the assembly method comprises the following steps: A. The first limit rail, the second limit rail and the auxiliary limit rail are pre-installed in the main housing; B. Assemble the working push rod, and extend the working push rod into the main housing in conjunction with the limit guide rail. Match the transmission part with the guide path, and rotate the spiral disk to push the working push rod into the main housing until the working push rod extends out of the guide opening; C. Adjust the position of the first rolling element along the connecting groove. Since the connecting groove is tilted relative to the working push rod, the height position of the first rolling element in the connecting groove relative to the other first rolling element changes. Adjust until the two first rolling elements on one side of the working push rod are respectively matched with the second limit rail and the auxiliary limit rail, and the working push rod maintains a clearance state relative to the guide port. D. Connect the cover plate and the main shell.

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