Elevator with multiple safety protection functions

Abstract

The invention discloses an elevator with multiple safety protection functions, and relates to the technical field of elevators, the elevator comprises a base, a folding support rotatably mounted at the top of the base, and a lifting platform rotatably mounted at the top of the folding support, and the two ends of the lifting platform are symmetrically and rotatably connected with first protection mechanisms; and one side of the lifting table is slidably connected with a second protection mechanism. The first protection mechanism is used for guaranteeing the safety of personnel in the process of going up and down the lifting platform, the second protection mechanism is used for preventing the lifting platform from colliding with other objects, and when the first protection mechanism is used, a second inclined plate, a connecting plate and a first inclined plate form a stair structure for the personnel to walk; the second protection mechanism can be used as an extension platform, the usable area of the lifting platform is enlarged, and the lifting platform can be separated from other objects by changing the angle of the protection rod.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to an elevator with multiple safety protection functions. Background Art

[0002] An elevator is a vertical transportation device used to move people or goods vertically within a building or facility. It usually consists of a drive system, a transmission system, a load-bearing system, and a control system.

[0003] For example, the "A safety protection device for an elevator" with publication number CN106276456B includes a protective plate, a guide rod and a mounting seat. The guide rod and the mounting seat are respectively located on both sides of the protective plate. The guide rod is movably connected to the lower end of the protective plate through a rotating shaft, and the mounting seat is movably connected to the middle position of the protective plate through a rotating shaft. The guide rod is parallel to the mounting seat, and a contact guide bearing is fixedly provided at the front end of the guide rod. There are several protective plates, which are parallel to each other, and the distance between adjacent two plates is equal.

[0004] However, in the prior art, the elevator lacks an effective protective structure when in use, especially when people are getting on and off the elevator platform. Because during this process, the people are in a walking state, the elevator platform is prone to shaking, and the operator cannot maintain the center of gravity, which can easily cause people to fall. In addition, when this type of elevator malfunctions and cannot descend, a rescue device is required to allow people to land safely. Summary of the Invention

[0005] The purpose of the present invention is to provide an elevator with multiple safety protection functions to solve the problem raised in the above background technology that the elevator platform is prone to shaking when people get on and off the elevator platform, the operator cannot maintain the center of gravity, and people are prone to falling.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lift with multiple safety protection functions, comprising a base, a folding bracket rotatably mounted on the top of the base, and a lifting platform rotatably mounted on the top of the folding bracket, wherein both ends of the lifting platform are symmetrically rotatably connected to a first protection mechanism, and one side of the lifting platform is slidably connected to a second protection mechanism, the first protection mechanism is used to auxiliary support the lifting platform and ensure the safety of people going up and down, and the second protection mechanism is deployed on the side of the lifting platform to form a blocking structure for separating other objects; The first protective mechanism includes a first inclined plate, a connecting plate rotatably mounted on the upper surface of the first inclined plate, and a second inclined plate rotatably mounted on the top of the connecting plate. Right-angled triangular notches are provided at the intersections of the first inclined plate and the connecting plate, and at the intersections of the second inclined plate and the connecting plate. The connecting plate rotates around the first inclined plate and synchronously drives the second inclined plate to form a staircase.

[0007] Preferably, the second protection mechanism comprises a push rod, two double-headed rotating rods and two protection rods, one end of the two double-headed rotating rods is rotatably connected with one end of the push rod, the two double-headed rotating rods are symmetrically distributed along the middle line of the push rod, the other end of the two double-headed rotating rods is rotatably connected with one end of the two protection rods, the protection rods and the double-headed rotating rods are covered on the push rod, and the length of the push rod is equal to the total length of one double-headed rotating rod and one protection rod.

[0008] Preferably, the inside of the lifting platform is fixedly provided with a bending rod, and both ends of the bending rod are rotatably provided with first electric cylinders for pushing the first inclined plate. One side of the bending rod is provided with a third electric cylinder for pushing the push rod, and the third electric cylinder is located on the middle line of the lifting platform.

[0009] Preferably, one end of the piston rod of the third electric cylinder is fixedly connected with a guide plate, the piston rod of the third electric cylinder penetrates through the bending rod, the guide plate is slidably connected in the inside of the lifting platform, the guide plate is cross-shaped in cross section, and one end of the guide plate is fixedly connected with one end of the push rod.

[0010] Preferably, the first inclined plate is fixedly provided with a connecting piece near the corner of the lifting platform, one end of the piston rod of the first electric cylinder is rotatably connected with the connecting piece, and a notch for accommodating the connecting piece is formed in the inside of the piston rod of the first electric cylinder.

[0011] Preferably, a positioning block is fixedly installed on the outer wall of the lifting platform, the protection rod is rotatably connected at the corner of the positioning block, the push rod penetrates through the positioning block, and extension rods are fixedly installed on both sides of the protection rod and perpendicular to the protection rod.

[0012] Preferably, a second electric cylinder is rotatably installed at the midpoint of the first inclined plate, the second electric cylinder is parallel to the connecting plate, and one end of the piston rod of the second electric cylinder is rotatably connected on one side of the connecting plate near the end head of the second inclined plate.

[0013] Preferably, a bending piece is fixedly installed on one side of the other connecting plate near the end head of the second inclined plate, and a spherical connecting rod is movably connected at the bending position of the bending piece. Two triangular positioning pieces are fixedly installed on the second inclined plate, one of the triangular positioning pieces is installed near the spherical connecting rod, a first rotating rod is rotatably installed at one corner of the triangular positioning piece, and one end of the first rotating rod is movably connected with one end of the spherical connecting rod. A second rotating rod is rotatably connected to the other corner of the triangular positioning piece, and a third rotating rod is rotatably connected between the other end of the first rotating rod and one end of the second rotating rod. The first rotating rod and the second rotating rod are used to adjust the angle of the third rotating rod, and the other end of the third rotating rod is rotatably connected to the armrest.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the first protective mechanism is used to ensure the safety of people when they go up and down the lifting platform, and the second protective mechanism is used to prevent the lifting platform from colliding with other objects. When the first protective mechanism is in use, the connecting plate can rotate around the first inclined plate to a horizontal state, and finally the second inclined plate, the connecting plate and the first inclined plate form a staircase structure for people to walk on. The second protective mechanism installed on the side of the lifting platform can be used as an extension platform to expand the usable area of ​​the lifting platform, and can also separate the lifting platform from other objects by changing the angle of the protective rod, thereby realizing multiple protections for the lifting platform and the people on it.

[0015] 2. In the present invention, the first protective mechanism composed of the first inclined rod, the connecting rod and the second inclined rod can be attached to the edge of the lifting platform at a small angle when not in use. At this time, the first protective mechanism and the original guardrail on the lifting platform form a complete protective structure, which can ensure the safety of people on the lifting platform. After the danger occurs and the height of the lifting platform is lowered, the first protective mechanism can be immediately deployed to make room for people to escape, and after the first protective mechanism is deployed into a stair structure, the handrail above the second inclined plate will also be deployed simultaneously, so that people can use the first protective mechanism to quickly escape from the lifting platform.

[0016] 3. In the present invention, the second protective mechanism is composed of a push rod, a double-headed rotating rod and a protective rod, wherein the protective rod and the extension rod form a frame structure, and a steel plate flush with the lifting platform is provided in the frame structure, which can expand the use area of ​​the lifting platform. The push rod is controlled by the first telescopic electric cylinder. When in use, the movement of the push rod can change the angle of the double-headed rotating rod, thereby rotating the protective rod from a horizontal state to an inclined state. At this time, the rescue equipment can be directly hung on the protective rod, which is convenient for the rescue equipment to help the people on the lifting platform escape. At the same time, the inclined protective rod provides sufficient buffering space for people to move, preventing the human body from falling out of the lifting platform due to inertia. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of an embodiment of the present invention; Figure 2 A front view of an embodiment of the present invention; Figure 3 A side view of an embodiment of the present invention; Figure 4A top view of an embodiment of the present invention; Figure 5 Schematic diagram of the three-dimensional structure of the first protection mechanism and the second protection mechanism according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the first protection mechanism according to an embodiment of the present invention; Figure 7 for Figure 6 A schematic diagram of the structure of part A; Figure 8 This is a schematic diagram of the three-dimensional structure of the second protection mechanism according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the disassembled structure of the second protection mechanism according to an embodiment of the present invention.

[0018] In the figure: 1. Base; 2. Folding bracket; 3. Lifting platform; 4. First protective mechanism; 5. Second protective mechanism; 6. Third electric cylinder; 7. Bending rod; 8. Guide plate; 41. First inclined plate; 42. Connecting plate; 43. Second inclined plate; 44. Armrest; 45. Connecting plate; 46. First electric cylinder; 47. Second electric cylinder; 48. Bending plate; 49. Spherical connecting rod; 410. Triangular positioning plate; 411. First rotating rod; 412. Second rotating rod; 413. Third rotating rod; 51. Push rod; 52. Double-headed rotating rod; 53. Protective rod; 54. Extension rod; 55. Positioning block. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] Example 1: Reference Figures 1-9 As shown, a lift with multiple safety protection functions includes a base 1, a folding bracket 2 rotatably mounted on the top of the base 1, and a lifting platform 3 rotatably mounted on the top of the folding bracket 2. First protection mechanisms 4 are symmetrically rotatably connected to both ends of the lifting platform 3, and a second protection mechanism 5 is slidably connected to one side of the lifting platform 3. The first protection mechanism 4 is used to auxiliary support the lifting platform 3 and ensure the safety of people going up and down. The second protection mechanism 5 is used to deploy a blocking structure on the side of the lifting platform 3 to separate other objects. The first protection mechanism 4 includes a first inclined plate 41, a connecting plate 42 rotatably mounted on the upper surface of the first inclined plate 41, and a second inclined plate 43 rotatably mounted on the top of the connecting plate 42. The first inclined plate 41 is rotatably connected to the lifting platform, and the second inclined plate 43 and the first inclined plate 41 are symmetrically arranged in the upper and lower structures. The intersection of the first inclined plate 41 and the connecting plate 42 and the intersection of the second inclined plate 43 and the connecting plate 42 are both provided with right-angled triangular notches. The connecting plate 42 rotates around the first inclined plate 41 and synchronously drives the second inclined plate 43 to move to form a staircase. The second protective mechanism 5 includes a push rod 51, two double-headed rotating rods 52 and two protective rods 53. One end of the two double-headed rotating rods 52 is rotatably connected to one end of the push rod 51. The two double-headed rotating rods 52 are located on both sides of the push rod 51 and are symmetrically distributed up and down along the midline of the push rod 51. The other ends of the two double-headed rotating rods 52 are rotatably connected to one end of the two protective rods 53 respectively. The protective rods 53 and the double-headed rotating rods 52 are both covered on the surface of the push rod 51, and the length of the push rod 51 is equal to the total length of the double-headed rotating rods 52 and the protective rods 53.

[0021] In this embodiment, the base 1 determines the position of the entire lift. A power assembly is provided inside the base 1 to push the folding bracket 2 to adjust the height of the lift platform 3. The first protection mechanism 4 is located at both ends of the lift platform 3, and the second protection mechanism 5 is located on one side of the lift platform 3. The first protection mechanism 4 can ensure the safety of personnel during the movement when they board and disembark from the lift platform 3. The first protection mechanism 4 is mainly composed of a first inclined plate 41, a connecting plate 42 and a second inclined plate 43. The first protection mechanism 4 has two modes: one is to fit on the lifting platform 3 at a small angle to ensure the safety of the operator on the lifting platform 3, and the other is to unfold into a staircase-like structure to ensure that people can safely board or walk down the lifting platform 3. Different modes can be selected according to different needs; Mode 1: The first inclined plate 41 is attached to the lifting platform 3 at a small angle. At this time, the connecting plate 42 is in a vertical state, and together with the original guardrail on the lifting platform 3, it forms a structure that restricts the position of people. Mode 2: The first inclined plate 41 rotates first, and then the connecting plate 42 rotates around the first inclined plate 41, lowering the second inclined plate 43. At this time, the first inclined plate 41, the connecting plate 42 and the second inclined plate 43 form a staircase structure, which is convenient for people to walk; The second protection mechanism 5 is installed on the side of the lifting platform 3. The second protection mechanism 5 is selected and used according to actual conditions. When the protection rod 53 in the second protection mechanism 5 is in a horizontal state, it is flush with the lifting platform 3. When the area is insufficient, the second protection mechanism 5 can be used as an extension platform. When the area of ​​the lifting platform 3 is sufficient, a guardrail can be installed at the edge of the lifting platform 3 to separate the protection rod 53 and the lifting platform 3. At this time, the movement of the push rod 51 can adjust the angle of the protection rod 53 through the double-headed rotating rod 52, so that the protection rod 53 can be rotated from a horizontal state to an inclined state. When danger occurs, it can be used as a blocking structure to prevent people from falling, and can be used as a hanging point for convenient docking with other equipment.

[0022] Example 2: According to Figure 4 、 Figure 5 and Figure 6 As shown, a bending rod 7 is fixedly installed inside the lifting platform 3, and both ends of the bending rod 7 are rotatably connected to the first electric cylinder 46 for pushing the first inclined plate 41. A third electric cylinder 6 for pushing the push rod 51 is provided on one side of the bending rod 7. The third electric cylinder 6 is located on the midline of the lifting platform 3. A connecting piece 45 is fixedly installed at the corner of the first inclined plate 41 near the lifting platform 3. One end of the piston rod of the first electric cylinder 46 is rotatably connected to the connecting piece 45, and a notch is provided inside the piston rod to accommodate the connecting piece 45. A second electric cylinder 47 is rotatably installed at the midpoint of the first inclined plate 41. The second electric cylinder 47 is parallel to the connecting plate 42. One end of the piston rod of the second electric cylinder 47 is rotatably connected to one side of one of the connecting plates 42 near the end head of the second inclined plate 43, and the connecting plate 42 is located near the center of the first inclined plate 41.

[0023] In this embodiment, the two first electric cylinders 46 are used to adjust the angle between the first inclined plate 41 in the first protective mechanism 4 and the lifting platform 3. The third electric cylinder 6 is used to control the second protective mechanism 5. The existence of the bending rod 7 determines the positions of the two first electric cylinders 46. The positions of the first electric cylinder 46 and the third electric cylinder 6 are both determined by the bending rod 7. When the piston rod of the first electric cylinder 46 is extended, it pushes the first inclined plate 41 to rotate away from the lifting platform 3. The connecting piece 45 provided on the first inclined plate 41 and the notch on the piston rod provide sufficient space for the rotation of the first inclined plate 41. When the piston rod is retracted, the first inclined plate 41 can be pulled near the lifting platform 3. The second electric cylinder 47 is used to control the angle of the connecting plate 42. After the first electric cylinder 46 pushes the first inclined plate 41 away, the second electric cylinder 47 pulls one end of the connecting plate 42 downward, causing the connecting plate 42 to rotate around the first inclined plate 41 to a horizontal state. The connecting plate 42 will also drive the remaining connecting plates 42 through the second inclined plate 43, so that all the connecting plates 42 are rotated to a horizontal state, forming a step structure for people to walk on.

[0024] Example 3: According to Figure 5 、 Figure 6 and Figure 7 As shown, a bending piece 48 is fixedly installed on one side of one connecting plate 42 near the end of the second inclined plate 43, and a spherical connecting rod 49 is movably connected to the bending part of the bending piece 48. Two triangular positioning pieces 410 are fixedly installed on the second inclined plate 43, one of the triangular positioning pieces 410 is installed at a position close to the spherical connecting rod 49, and a first rotating rod 411 is rotatably installed at a corner of the triangular positioning piece 410. One end of the first rotating rod 411 is movably connected to one end of the spherical connecting rod 49, and a second rotating rod 412 is rotatably connected to the other corner of the triangular positioning piece 410. A third rotating rod 413 is rotatably connected between one end of the first rotating rod 411 and one end of the second rotating rod 412. The first rotating rod 411 and the second rotating rod 412 are used to adjust the angle of the third rotating rod 413. The other end of the third rotating rod 413 is rotatably connected to the armrest 44 , and the armrest 44 is attached to the upper surface of the second inclined plate 43 .

[0025] In this embodiment, the bending piece 48 is hinged to the first rotating rod 411 via a spherical connecting rod 49. When the connecting plate 42 rotates, the first rotating rod 411 is pulled by the spherical connecting rod 49. Since the spherical connecting rod 49 is located at the bending portion of the bending piece 48, the spherical connecting rod 49 ensures that the second inclined plate 43 is always in a vertical state. When the connecting plate 42 rotates to a horizontal state, the first rotating rod 411 rotates around the connection point with the triangular positioning plate 410 as the center of the circle. The first rotating rod 411 pushes the armrest 44 away from the second inclined plate 43 through the third rotating rod 413. The side of the third rotating rod 413 is also connected to the second rotating rod 412 rotatably installed at the other corner of the triangular positioning plate 410. The first rotating rod 411 and the second rotating rod 412 jointly determine the angle of the third rotating rod 413 to ensure the stability of the armrest 44.

[0026] Example 4: According to Figure 3 、 Figure 4 、 Figure 8 and Figure 9 As shown, the second protection mechanism 5 includes a push rod 51, two double-ended rotating rods 52 and two protection rods 53. One end of each of the two double-ended rotating rods 52 is rotatably connected to one end of the push rod 51. The two double-ended rotating rods 52 are symmetrically distributed up and down along the midline of the push rod 51. The other ends of the two double-ended rotating rods 52 are rotatably connected to one end of the two protection rods 53 respectively. The protection rods 53 and the double-ended rotating rods 52 both cover the surface of the push rod 51, and the length of the push rod 51 is equal to the total length of one double-ended rotating rod 52 and one protection rod 53. One end of the piston rod of the third electric cylinder 6 is fixedly connected to a guide plate 8, and the piston rod of the third electric cylinder 6 passes through the bending rod 7. The guide plate 8 is slidably connected to the inside of the lifting platform 3. The cross-section of the guide plate 8 is cross-shaped, and one end of the guide plate 8 is fixedly connected to one end of the push rod 51. A positioning block 55 is fixedly installed on the outer wall of the lifting platform 3. The protective rod 53 is rotatably connected to the corner of the positioning block 55. The push rod 51 passes through the positioning block 55. Extension rods 54 are fixedly installed on both sides of the protective rod 53 located above, and the extension rod 54 and the protective rod 53 are perpendicular to each other.

[0027] In this embodiment, the push rod 51 is fixedly connected to the piston rod of the third electric cylinder 6 via the guide plate 8. When in use, the push rod 51 is driven by the third electric cylinder 6. When the push rod 51 moves outward or inward, the angle of the protective rod 53 is changed via the double-headed rotating rod 52. When the push rod 51 moves into the interior of the lifting platform 3, the double-headed rotating rod 52 rotates upward, causing the protective rod 53 to rotate from a horizontal state to an inclined state. During this process, the guide plate 8 can ensure the stability of the push rod 51. One end of the protective rod 53 is rotatably connected to the positioning block 55, and the push rod 51 passes through the positioning block 55, ensuring that the push rod 51 can move normally, the protective rod 53 can rotate normally, and the extension rods 54 on both sides of the protective rod 53 can be normally spliced ​​with the lifting platform 3.

[0028] The device's usage and working principle: A power assembly is provided inside the base 1 to push the folding bracket 2 to adjust the height of the lifting platform 3. The first protection mechanism 4 is located at both ends of the lifting platform 3, and the second protection mechanism 5 is located on one side of the lifting platform 3. The first protection mechanism 4 can ensure the safety of personnel during the movement when they board and disembark from the lifting platform 3. The first protection mechanism 4 has two modes. In mode 1, the first inclined plate 41 is attached to the lifting platform 3 at a small angle. At this time, the connecting plate 42 is in a vertical state, and together with the original guardrail on the lifting platform 3, it forms a structure that restricts the position of people. In mode 2, the piston rod in the first electric cylinder 46 extends, pushing the first inclined plate 41 away from the lifting platform 3. Then, the second electric cylinder 47 pulls one end of the connecting plate 42 downward, causing the connecting plate 42 to rotate around the first inclined plate 41 to a horizontal state. The second inclined plate 43 drives the remaining connecting plates 42. At this time, the first inclined plate 41, the connecting plate 42, and the second inclined plate 43 form a staircase structure, which is convenient for people to walk. During the rotation of the connecting plate 42, the first rotating rod 411 rotates around the connection point with the triangular positioning plate 410. The first rotating rod 411 pushes the armrest 44 away from the second inclined plate 43 through the third rotating rod 413, and cooperates with the second rotating rod 412 to determine the angle of the second rotating rod 412. The second protection mechanism 5 is selected and used according to actual conditions. When the protection rod 53 in the second protection mechanism 5 is in a horizontal state, it is flush with the lifting platform 3. When the area is insufficient, the second protection mechanism 5 can be used as an extension platform. When the area of ​​the lifting platform 3 is sufficient, a guardrail can be installed at the edge of the lifting platform 3 to separate the protection rod 53 and the lifting platform 3. The third electric cylinder 6 pushes the push rod 51 through the guide plate 8, and adjusts the angle of the protective rod 53 through the double-headed rotating rod 52, so that the protective rod 53 is rotated from a horizontal state to an inclined state. When danger occurs, it can serve as a protective mechanism to prevent people from falling, and can also serve as a hanging point for convenient docking with other equipment.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lift with multiple safety protection functions, comprising a base (1), a folding bracket (2) rotatably mounted on the top of the base (1), and a lifting platform (3) rotatably mounted on the top of the folding bracket (2), characterized in that: The two ends of the lifting platform (3) are symmetrically connected to a first protective mechanism (4), and one side of the lifting platform (3) is slidably connected to a second protective mechanism (5). The first protective mechanism (4) is used to assist in supporting the lifting platform (3) and ensure the safety of people going up and down. The second protective mechanism (5) is deployed on the side of the lifting platform (3) to form a blocking structure for separating other objects. The first protection mechanism (4) comprises a first inclined plate (41), a connecting plate (42) rotatably mounted on the upper surface of the first inclined plate (41), and a second inclined plate (43) rotatably mounted on the top of the connecting plate (42). A right-angled triangular notch is provided at the intersection of the first inclined plate (41) and the connecting plate (42) and at the intersection of the second inclined plate (43) and the connecting plate (42). The connecting plate (42) rotates around the first inclined plate (41) and synchronously drives the second inclined plate (43) to form a staircase.

2. The elevator with multiple safety protection functions according to claim 1, characterized in that: The second protection mechanism (5) comprises a push rod (51), two double-headed rotating rods (52) and two protection rods (53), one end of each of the two double-headed rotating rods (52) is rotatably connected to one end of the push rod (51), the two double-headed rotating rods (52) are symmetrically distributed up and down along the midline of the push rod (51), the other ends of the two double-headed rotating rods (52) are rotatably connected to one end of the two protection rods (53), the protection rods (53) and the double-headed rotating rods (52) are both covered on the push rod (51), and the length of the push rod (51) is equal to the total length of one double-headed rotating rod (52) and one protection rod (53).

3. The elevator with multiple safety protection functions according to claim 2, characterized in that: A bending rod (7) is fixedly installed inside the lifting platform (3), and both ends of the bending rod (7) are rotatably connected to a first electric cylinder (46) for pushing the first tilting plate (41); A third electric cylinder (6) for pushing the push rod (51) is provided on one side of the bending rod (7), and the third electric cylinder (6) is located on the midline of the lifting platform (3).

4. The elevator with multiple safety protection functions according to claim 3, characterized in that: One end of the piston rod of the third electric cylinder (6) is fixedly connected to a guide plate (8), and the piston rod of the third electric cylinder (6) passes through the bending rod (7). The guide plate (8) is slidably connected to the inside of the lifting platform (3). The cross section of the guide plate (8) is cross-shaped, and one end of the guide plate (8) is fixedly connected to one end of the push rod (51).

5. The elevator with multiple safety protection functions according to claim 3, characterized in that: A connecting piece (45) is fixedly installed on the first inclined plate (41) at a corner near the lifting platform (3); one end of the piston rod of the first electric cylinder (46) is rotatably connected to the connecting piece (45); and a notch is provided inside the piston rod of the first electric cylinder (46) for accommodating the connecting piece (45).

6. The elevator with multiple safety protection functions according to claim 2, characterized in that: A positioning block (55) is fixedly mounted on the outer wall of the lifting platform (3); the protective rod (53) is rotatably connected to the corner of the positioning block (55); the push rod (51) passes through the positioning block (55); and extension rods (54) are fixedly mounted on both sides of the protective rod (53), and the extension rods (54) and the protective rod (53) are perpendicular to each other.

7. The elevator with multiple safety protection functions according to claim 1, characterized in that: A second electric cylinder (47) is rotatably mounted at the midpoint of the first inclined plate (41), the second electric cylinder (47) being parallel to the connecting plate (42), and one end of the piston rod of the second electric cylinder (47) being rotatably connected to one side of one of the connecting plates (42) close to the end portion of the second inclined plate (43).

8. The elevator with multiple safety protection functions according to claim 7, characterized in that: A bending piece (48) is fixedly mounted on one side of the other connecting plate (42) close to the end portion of the second inclined plate (43), and a spherical connecting rod (49) is movably connected to the bending portion of the bending piece (48); Two triangular positioning pieces (410) are fixedly mounted on the second inclined plate (43), wherein one of the triangular positioning pieces (410) is mounted at a position close to the spherical connecting rod (49), and a first rotating rod (411) is rotatably mounted at a corner of the triangular positioning piece (410), and one end of the first rotating rod (411) is movably connected to one end of the spherical connecting rod (49); A second rotating rod (412) is rotatably connected to another corner of the triangular positioning piece (410), and a third rotating rod (413) is rotatably connected between the other end of the first rotating rod (411) and one end of the second rotating rod (412). The first rotating rod (411) and the second rotating rod (412) are used to adjust the angle of the third rotating rod (413), and the other end of the third rotating rod (413) is rotatably connected to an armrest (44).

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