A four-way overhead track shifter

Abstract

The present application relates to a kind of four-way sky rail displacement machines, including the sky rail being set in the top of wall, the sky rail is the hollow structure sky rail, moving mechanism is arranged in the sky rail, and the moving mechanism is synchronously connected with displacement mechanism by guide wheel mounting seat.The present application can be always attached with sky rail, to realize stable walking, ensure the safety of patient.

Description

Technical Field

[0001] The present invention relates to the field of medical care equipment, and in particular to a four-way overhead rail transfer machine. Background Art

[0002] Currently, four-way lifts on the market primarily use a motor-driven sprocket to indirectly drive small rollers within the track. This structure increases the height of the lift, which can be a poor user experience in wards with limited headroom. Furthermore, the rollers are driven primarily by friction between the lift (and the patient)'s weight and the lower surface of the track, making them prone to slippage and asynchrony.

[0003] Currently, the overhead transfer machines on the market have the following disadvantages:

[0004] 1. The outer shell of the overhead rail basically does not have a display screen module. The patient's health status data (such as weight, movement speed, lifting speed, etc.) cannot be presented in real time and quickly, making it difficult for medical workers to diagnose the patient's current condition.

[0005] 2. Most overhead rail travel brakes rely on the travel motor's own self-locking mechanism (specifically, worm gear self-locking brakes). However, these self-locking brakes cannot brake quickly, and the travel wheels will still move forward and backward due to the inertia of the caregiver. Furthermore, long-term use will shorten the motor's lifespan and increase maintenance costs.

[0006] 3. One type of travel motor wheel uses an elastic pre-loaded structure, but the disadvantage is that manual traction is very difficult when the power is off. The other type uses a sprocket chain to drive the small rollers in the track cavity. This structure is complex and the external part is prone to dust and impurities, resulting in severe wear of the chain and sprocket over time. Summary of the Invention

[0007] In order to solve the above technical problems, the purpose of the present invention is to provide a four-way overhead rail transfer machine.

[0008] To achieve the above object, the present invention adopts the following technical solutions:

[0009] A four-way overhead rail transfer machine includes an overhead rail arranged on the top of a wall, the overhead rail being a hollow structure, a moving mechanism being arranged inside the overhead rail, and the moving mechanism being synchronously connected to the shifting mechanism via a guide wheel mounting seat;

[0010] The shift mechanism includes a shift frame, a lever bracket is provided on the top plate of the shift frame, the lever bracket is connected to one end of the hub motor hinge frame, the other end of the hub motor hinge frame is connected to the lifting mechanism installed on the top plate, a travel hub motor is provided between the hub motor hinge frames, a window matching the travel hub motor is opened on the top plate of the shift machine frame, and the upper part of the travel hub motor passes through the window and contacts the lower end surface of the ceiling rail;

[0011] A first gear is provided on one side of the side plate of the shift frame through a first rotating shaft, the first rotating shaft is driven and connected to the sling lifting motor, a second gear is provided on the side plate of the shift frame through a second rotating shaft, the first gear is meshed with the second gear, and the second gear is provided with a winch reel that rotates synchronously with the second gear, a sling is wound on the winch reel, and the sling passes through the guide shaft wheel, the weighing guide wheel and the lower guide wheel in sequence, and the end thereof is traction-connected to the patient, wherein the weighing guide wheel and the lower guide wheel are located on the other side of the side plate of the shift frame, and the lower guide wheel is arranged on the same axis as the walking wheel hub motor.

[0012] Preferably, in the four-way overhead rail shifting machine, the overhead rail is a track with a hollow structure, and insulating rails are embedded on the inner walls of the left and right sides of the hollow structure of the overhead rail, and copper sheets are embedded in the insulating rails. A power access line is passed through the overhead rail, and the power access line is connected to the copper sheet.

[0013] Preferably, in the four-way overhead rail shifting machine, the moving mechanism includes a moving frame, the left and right sides of the moving frame are connected to road wheels via a rotating shaft, the road wheels on the left and right sides are slidably connected in corresponding insulating rails, a track guide wheel is provided on the top of the moving frame, the track guide wheel contacts the inner side of the hollow structure of the overhead rail, and the lower end of the moving frame is connected to the guide wheel mounting seat;

[0014] A collector seat is provided on one side of the movable frame, and a first carbon tongue groove and a second carbon tongue groove are provided in the cavity of the collector seat, and the first carbon tongue groove and the second carbon tongue groove are respectively provided with a first carbon tongue and a second carbon tongue through their own compression springs. At the same time, one side of the first carbon tongue and the second carbon tongue respectively protrude from the left side and the right side of the collector seat, and they are respectively in contact with and connected to the copper sheets on the corresponding insulating rails. The other sides of the first carbon tongue and the second carbon tongue connected to the compression spring are both connected to one end of the power transmission line, and the other end of the power transmission line is connected to the shift mechanism through the threading plate connected to the collector seat, and the threading plate is connected to the polyurethane block by screws.

[0015] Preferably, in the four-way overhead rail shifting machine, a shell suction plate is provided on the top of the movable frame, an electromagnet is provided inside the movable frame, a top shaft is provided on the electromagnet, the upper end of the top shaft passes through the shell suction plate and is connected to the rubber friction pad. When the electromagnet is powered on, the electromagnet and the shell suction plate are attracted to each other, the electromagnet rises, drives the top shaft to rise and causes the rubber friction pad to come into contact with the inner wall of the overhead rail, and an insulating friction pad is provided on the bottom end of the movable frame below the rubber friction pad.

[0016] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket. The lower sprocket. The lower sprocket. The gear train is constructed accordingly, and the two gears are connected along a vertical cam path to create a meshing effect for the user.

[0017] Preferably, in the four-way overhead rail shifting machine, a lithium iron phosphate battery is provided in the shifting frame, and the lithium iron phosphate battery is provided on the side of the lifting mechanism.

[0018] Preferably, in the four-way overhead rail shifting machine, the weighing guide wheel is connected to a weighing sensor.

[0019] Preferably, in the four-way overhead rail shifting machine, a pressure plate shaft is provided on the shifting frame, the pressure plate shaft is located on the side of the second gear, a pressure plate that rotates as the sling is wound is provided on the pressure plate shaft, the pressure plate shaft is provided on a spring pull plate, and a first micro switch is provided on the shifting frame, the first micro switch is located on the side of the spring pull plate, and one end of the spring pull plate touches the first micro switch, and one end of the spring pull plate is connected to the fixed column through a tension spring.

[0020] Preferably, in the four-way overhead rail shift machine, a second micro switch is provided on the shift frame, an emergency pull tab that rotates through a rotating shaft is contacted below the second micro switch, and the emergency pull tab is connected to a pull wire.

[0021] Preferably, in the four-way overhead rail shift machine, the shift frame is provided with a flexible display screen, a side status indicator light and a lower status indicator light.

[0022] By the above scheme, the present application has at least the following advantages:

[0023] 1、The present application has a flexible display screen outside the shell of the sky track displacement machine, state indicator lights are installed on both sides and the bottom of the displacement machine, and the C-shaped outer package flexible display screen can display the current data of the person being cared for, such as weight, horizontal walking speed and vertical lifting speed, which is more convenient for medical staff to monitor and manage. The lower state indicator light can satisfy the use state (whether it is in operation) and the power state of the displacement machine for close-range viewing, and the side state indicator lights on both sides can satisfy the use state (whether it is in operation) and the power state of the displacement machine for real-time understanding even at a distance.

[0024] 2、The brake device of the present application is integrated into the walking wheel and placed inside the track, and the locking is directly against the inner cavity on the track, which is stable and reliable in performance, and compact in structure.

[0025] 3、The four-way vertical lifting and horizontal walking motor lifting mechanism of the present application adopts an integrated hub motor with adjustable speed, and the walking motor lifting is adjusted through a screw lifting mechanism, which is convenient for operators to operate.

[0026] 4、The height and length of the displacement machine itself are small, and the internal structure is compact, which not only meets the high energy of automatic horizontal displacement and vertical lifting in the same product four-way displacement machine, but also has a more compact structure and is easier to install in a ward or nursing home with insufficient height space.

[0027] 5、The present application can realize manual and automatic switching to realize different functions and ensure normal use of the patient.

[0028] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and can be implemented according to the content of the specification, as follows. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, it should be understood that the following drawings only show some embodiments of the present application, therefore should not be regarded as a limitation on the scope, for those skilled in the art, without creative labor, other related drawings can also be obtained from these drawings.

[0030] Figure 1 is a structural schematic diagram of the present application;

[0031] Figure 2 is a schematic diagram of the internal structure of the present application;

[0032] Figure 3It is a structural schematic diagram of the transfer machine of the present invention;

[0033] Figure 4 It is a schematic structural diagram of the lifting mechanism of the present invention;

[0034] Figure 5 It is a schematic diagram of the internal structure of the sky rail of the present invention;

[0035] Figure 6 yes Figure 3 A schematic diagram of the structure on the other side;

[0036] Figure 7 It is a schematic structural diagram of AA of the present invention;

[0037] Figure 8 It is a structural diagram of the mobile mechanism of the present invention;

[0038] Figure 9 It is a structural diagram of BB of the present invention. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0042] In the description of this application, it should be noted that the terms "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] In addition, the terms "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or vertical, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0044] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0045] Example

[0046] like Figures 1 to 9 As shown, a four-way overhead rail shifting machine includes an overhead rail 7 arranged on the top of the wall, the overhead rail 7 is a hollow structure overhead rail, a moving mechanism is arranged in the overhead rail 7, and the moving mechanism is synchronously connected with the shifting mechanism through a guide wheel mounting seat 5; the shifting mechanism includes a shifting frame, a lever bracket 26 is provided on the top plate of the shifting frame, the lever bracket 26 is connected to one end of the hub motor hinge frame 24, the other end of the hub motor hinge frame 24 is connected to the lifting mechanism installed on the top plate, a walking hub motor 12 is provided between the hub motor hinge frames 24, and a window matching the walking hub motor 12 is opened on the top plate of the shifting machine frame, and the upper part of the walking hub motor 12 passes through the window and the lower end surface of the overhead rail 7. The first gear 19 is provided on one side of the side plate of the shift frame through the first rotating shaft, and the first rotating shaft is driven and connected to the sling lifting motor 13. The second gear 18 is provided on the side plate of the shift frame through the second rotating shaft. The first gear 19 is meshed with the second gear 18. The second gear 18 is provided with a winch reel 17 that rotates synchronously with the second gear 18. The sling 11 is wound on the winch reel 17, and the sling 11 passes through the guide shaft wheel 20, the weighing guide wheel 21 and the lower guide wheel 22 in sequence, and the end thereof is traction-connected to the patient, wherein the weighing guide wheel 21 and the lower guide wheel 22 are located on the other side of the side plate of the shift frame, and the lower guide wheel 22 is arranged on the same axis as the walking wheel hub motor 12.

[0047] Example 1

[0048] On the basis of the above embodiments, the present invention can achieve the stability of wiring, and its structure is as follows: the overhead rail 7 is a track of a hollow structure, and insulating rails 43 are embedded on the inner walls of the left and right sides of the hollow structure of the overhead rail 7, and copper sheets 44 are embedded in the insulating rails 43. A power transmission access line 45 is passed through the overhead rail 7, and the power transmission access line 45 is connected to the copper sheet 44; the moving mechanism includes a moving frame, and the left and right sides of the moving frame are connected with road wheels 9 through a rotating shaft, and the road wheels 9 on the left and right sides are slidably connected in the corresponding insulating rails 43, and a track guide wheel 8 is provided on the top of the moving frame, and the track guide wheel 8 touches the inner side of the hollow structure of the overhead rail, and the lower end of the moving frame is connected to the guide wheel mounting seat 5; one side of the moving frame is provided There is a collector seat 46, and a first carbon tongue groove and a second carbon tongue groove are provided in the cavity of the collector seat 46. The first carbon tongue groove and the second carbon tongue groove are respectively provided with a first carbon tongue 48 and a second carbon tongue 49 through their own compression springs 47. At the same time, one side of the first carbon tongue 48 and the second carbon tongue 49 respectively protrude from the left side and the right side of the collector seat 46, and they are respectively in contact with and connected to the copper sheet 44 on the corresponding insulating rail 43. The other side of the first carbon tongue 48 and the second carbon tongue 49 connected to the compression spring is connected to one end of the power transmission line 50, and the other end of the power transmission line 50 is connected to the shift mechanism through the threading plate 51 connected to the collector seat 46, and the threading plate 51 is connected to the polyurethane block 52 by screws.

[0049] Example 2

[0050] On the basis of the above embodiments and embodiment one, the brake structure of the present invention can quickly and stably stop the shift machine to ensure the stability of the brake. The specific structure is as follows: an outer shell suction plate 2 is provided on the top of the movable frame, an electromagnet 4 is provided in the movable frame, and a top shaft 3 is provided on the electromagnet 4. The upper end of the top shaft 3 passes through the outer shell suction plate 2 and is connected to the rubber friction pad 1. When the electromagnet 4 is powered on, the electromagnet and the outer shell suction plate are attracted to each other, and the electromagnet rises to drive the top shaft to rise and make the rubber friction pad 1 contact with the inner wall of the ceiling rail. An insulating friction pad 6 is provided on the bottom end of the movable frame below the rubber friction pad 1.

[0051] The specific process is that when the caregiver closes the lift with the sling 11, the sling lifting motor 13 and the walking wheel hub motor 12 stop rotating, the electromagnet 4 is energized and has magnetism, and the electromagnet 4 will be attracted to the outer shell suction plate 2, thereby pushing the top shaft 3, and the top shaft 3 is equipped with a rubber friction pad 1, thereby pushing the rubber friction pad 1 to press against the upper surface of the inner cavity of the track 7, while the bottom is supported by the insulating friction pad 6, so as to quickly lock the brake.

[0052] The moving frame is provided with track guide wheels 8 which are placed in the groove of the track 7 and have a guiding function, and the load wheels 9 mainly serve as load and walking functions. The whole walking mechanism is provided with anti-collision pads 10 on both sides to reduce the impact of the end block of the track 7.

[0053] Example Three

[0054] On the basis of the above-mentioned examples, example one and example two, the height of the walking hub motor 12 can be adjusted to realize close contact with the sky rail. The lifting mechanism comprises a lifting shell 29, a trapezoidal screw 33 is arranged in the inner cavity of the lifting shell 29, a sliding screw seat 31 is sleeved on one end of the trapezoidal screw 33 in the inner cavity of the lifting shell, a guide shaft 32 is arranged in the inner cavity of the lifting shell 29 and is arranged in parallel with the trapezoidal screw 33, the guide shaft 32 is connected to the screw seat 31, a recess is arranged in the screw seat 31, a rectangular spring 30 is arranged in the recess, the rectangular spring 30 is sleeved on the guide shaft 32, a sliding block 28 is sleeved on the guide shaft, the sliding block 28 is in contact with the rectangular spring 49, one side of the sliding block 28 protrudes from the outer side of the lifting shell 29, and the sliding block 28 is connected to the hub motor hinge frame 24 through the cam follower 27, the other end of the trapezoidal screw 33 passes through the upper side of the lifting shell 29 and is connected to the gear 36, a brushless motor 34 is arranged on the outer side of the lifting shell 29, a shoulder gear 35 is arranged on the drive shaft of the brushless motor 34, and the shoulder gear 35 is connected to the gear 36.

[0055] Specific working process, the brushless motor 34 drives the shoulder gear 35, the shoulder gear 35 engages and drives the thin gear 36 and the trapezoidal screw 33 to rotate, the trapezoidal screw 33 rotates while the screw seat 31 moves up and down along the guide shaft 32, the screw seat 31 is provided with the rectangular spring 30 and the sliding block 28, at this time the sliding block 28 also moves up and down, the cam follower 27 installed in the sliding block 28 also moves up and down, the cam follower 27 is connected to the inner cavity of the hub motor hinge 24, so that the cam follower 27 moves up and down to drive the hub motor hinge frame 24 to move up and down with the lever support 26 as the fulcrum, thereby driving the walking hub motor 12 to move up and down, when the sky rail needs to be shifted horizontally, the walking hub motor 12 is tangent to the lower end surface of the track 7, and the load wheel 9 is in contact with the inner side of the track 7, under the driving of the walking hub motor 12, the whole shifting machine can move horizontally along the track 7.

[0056] Example Four

[0057] On the basis of the above-mentioned embodiments, embodiment one, embodiment two and embodiment three, the present invention can realize the emergency stop of the sling, and the specific structure is as follows: a pressure plate shaft 39 is provided on the shift frame, and the pressure plate shaft 39 is located on the side of the second gear 18; a pressure plate 38 that rotates with the winding of the sling is provided on the pressure plate shaft 39; a spring pull plate 40 is provided on the pressure plate shaft 39; a first micro switch 41 is provided on the shift frame, and the first micro switch 41 is located on the side of the spring pull plate 40, and at the same time, one end of the spring pull plate 40 touches the first micro switch, and one end of the spring pull plate 40 is connected to the fixed column through the tension spring 42; a second micro switch 54 is provided on the shift frame, and an emergency pull tab 55 that rotates through the shaft is in contact with the lower part of the second micro switch 54, and the emergency pull tab 55 is connected to the pull wire 53.

[0058] The specific working process is that the sling 11 lifts the patient up, and when it reaches the end of the sling, the winch reel 17 will roll up the sling 11. The more the winch reel 17 is rolled up, the larger its diameter will be, and then it will push the pressure plate 38 and rotate with the pressure plate shaft 39 as the axis. A spring pull plate 40 is fixed on the pressure plate shaft 39, and the spring pull plate 40 is pulled by a tension spring 42. Under normal circumstances, the upper end of the spring pull plate 40 presses the micro switch 41. As the diameter of the winch reel 17 increases, the upper end of the spring pull plate 40 leaves the contact of the first micro switch 41, so that the first micro switch 41 sends a signal to the main control device, and then the machine head stops working.

[0059] The main control device in the present invention is a control box known to those skilled in the art, and the control box controls various units in the lift.

[0060] A lithium iron phosphate battery 23 is provided in the shift frame of the present invention. The lithium iron phosphate battery 23 is located on the side of the lifting mechanism. The lithium iron phosphate battery 23 can be used to work without electricity, and can also be charged as reserve power in an external power mode.

[0061] Example 5

[0062] On the basis of the above-mentioned embodiments, embodiment one, embodiment two, embodiment three and embodiment four, the present invention can realize the monitoring of specific numerical values ​​of patients. The specific structure is as follows: the weighing guide wheel 21 is connected to the weighing sensor 37, which is mainly suitable for weighing patients, so that medical staff can know the specific numerical values ​​of patients. The shift frame is provided with a flexible display screen 14, a side status indicator light 15 and a lower status indicator light 16. The functional flexible display screen 14 can display the current data of the care recipient such as weight, horizontal walking and vertical lifting speed in real time, making it easier for medical staff to monitor and manage registration data. The side status indicator light 15 and the lower status indicator light 16 can meet the needs of medical staff to understand the use status (whether it is in operation) and power status of the shifting machine in real time whether they are near or far.

[0063] Example 6

[0064] According to the structures in the first and third embodiments, the traveling hub motor 12 is lowered by the lifting mechanism so that the traveling hub motor 12 is no longer in contact with the overhead rail. At this time, the transfer machine of the present invention is in a manual control state, that is, the operator can perform manual displacement. The present invention contacts the insulating rails in the overhead rails through the road wheels and is pushed by the operator to move the patient to the required position. In this state, there is no need to use electric drive, ensuring that the function of manual movement can be achieved even in the case of a break.

[0065] In the present invention, even in the case of a power outage, the manual descent can be completed by powering the lithium iron phosphate battery, thereby switching to the manual mode to ensure normal use by the patient.

[0066] The present invention can realize manual and automatic switching to ensure normal use by patients.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A four-way overhead rail transfer machine, comprising an overhead rail (7) arranged on the top of a wall, characterized in that: The ceiling rail (7) is a hollow structure ceiling rail, and a moving mechanism is provided inside the ceiling rail (7), and the moving mechanism is synchronously connected to the shifting mechanism via a guide wheel mounting seat (5); The shift mechanism includes a shift frame, a lever bracket (26) is provided on the top plate of the shift frame, the lever bracket (26) is connected to one end of the hub motor hinge bracket (24), the other end of the hub motor hinge bracket (24) is connected to a lifting mechanism installed on the top plate, a travel hub motor (12) is provided between the hub motor hinge brackets (24), a window matching the travel hub motor (12) is provided on the top plate of the shift frame, and the upper part of the travel hub motor (12) passes through the window and contacts the lower end surface of the overhead rail (7); A first gear (19) is provided on one side of the side plate of the shift frame through a first rotating shaft, the first rotating shaft is connected to the sling lifting motor (13), a second gear (18) is provided on the side plate of the shift frame through a second rotating shaft, the first gear (19) is meshed with the second gear (18), a winch reel (17) that rotates synchronously with the second gear (18) is provided on the second gear (18), a sling (11) is wound on the winch reel (17), the sling (11) passes through the guide shaft wheel (20), the weighing guide wheel (21) and the lower guide wheel (22) in sequence, and the end thereof is connected to the patient by traction, wherein the weighing guide wheel (21) and the lower guide wheel (22) are located on the other side of the side plate of the shift frame, and the lower guide wheel (22) is provided on the same axis as the walking wheel hub motor (12); The lifting mechanism includes a lifting shell (29), a trapezoidal screw rod (33) is provided in the inner cavity of the lifting shell (29), a sliding screw rod slide (31) is sleeved on one end of the trapezoidal screw rod (33) in the inner cavity of the lifting shell, a guide shaft (32) is provided in the inner cavity of the lifting shell (29), the guide shaft (32) is arranged parallel to the trapezoidal screw rod (33), the guide shaft (32) is connected to the screw rod slide (31), a groove is provided in the screw rod slide (31), a rectangular spring (30) is provided in the groove, the rectangular spring (30) is sleeved on the guide shaft (32), and the guide shaft (32) is arranged parallel to the trapezoidal screw rod (33). A slider (28) is mounted on the shaft, the slider (28) contacts the rectangular spring (30), one side of the slider (28) protrudes from the outside of the lifting shell (29), and the slider (28) is connected to the hub motor hinge frame (24) through a cam follower (27). The other end of the trapezoidal screw rod (33) passes through the top of the lifting shell (29) and is synchronously connected to the gear (36). A brushless motor (34) is arranged on the outside of the lifting shell (29), and a shoulder gear (35) is arranged on the drive shaft of the brushless motor (34), and the shoulder gear (35) is meshed with the gear (36).

2. The four-way overhead rail lift according to claim 1, characterized in that: The ceiling rail (7) is a track with a hollow structure. Insulating rails (43) are installed on the inner walls of the left and right sides of the hollow ceiling rail (7). A copper sheet (44) is embedded in the insulating rail (43). A power transmission access line (45) is connected to the ceiling rail (7). The power transmission access line (45) is connected to the copper sheet (44).

3. The four-way overhead rail lift according to claim 1, characterized in that: The mobile mechanism includes a mobile frame, and the left and right sides of the mobile frame are connected to road wheels (9) through rotating shafts. The road wheels (9) on the left and right sides are slidably connected in corresponding insulating rails (43). A track guide wheel (8) is provided on the top of the mobile frame, and the track guide wheel (8) contacts the inner side of the hollow structure of the ceiling rail. The lower end of the mobile frame is connected to the guide wheel mounting seat (5); A collector seat (46) is provided on one side of the movable frame, and a first carbon tongue groove and a second carbon tongue groove are provided in the cavity of the collector seat (46), and a first carbon tongue (48) and a second carbon tongue (49) are respectively provided in the first carbon tongue groove and the second carbon tongue groove through their own compression springs (47), and at the same time, one side of the first carbon tongue (48) and the second carbon tongue (49) protrude from the left side and the right side of the collector seat (46), and they are respectively in contact with the copper sheet (44) on the corresponding insulating rail (43), and the other side of the first carbon tongue (48) and the second carbon tongue (49) connected to the compression spring are both connected to one end of the power transmission line (50), and the other end of the power transmission line (50) passes through the threading plate (51) connected to the collector seat (46) and is connected to the shift mechanism, and the threading plate (51) and the polyurethane block (52) are connected by screws.

4. The four-way overhead lift according to claim 3, characterized in that: A shell suction plate (2) is provided on the top of the movable frame, an electromagnet (4) is provided inside the movable frame, a top shaft (3) is provided on the electromagnet (4), the upper end of the top shaft (3) passes through the shell suction plate (2) and is connected to the rubber friction pad (1), when the electromagnet (4) is powered on, the electromagnet and the shell suction plate are attracted, the electromagnet rises, drives the top shaft to rise, and makes the rubber friction pad (1) contact the inner wall of the ceiling rail, and an insulating friction pad (6) is provided on the bottom end of the movable frame below the rubber friction pad (1).

5. The four-way overhead lift according to claim 1, characterized in that: A lithium iron phosphate battery (23) is arranged in the shift frame, and the lithium iron phosphate battery (23) is arranged on the side of the lifting mechanism.

6. The four-way overhead lift according to claim 1, characterized in that: The weighing guide wheel (21) is connected to a weighing sensor (37).

7. The four-way overhead lift according to claim 1, characterized in that: The shift frame is provided with a pressure plate shaft (39), the pressure plate shaft (39) is located on the side of the second gear (18), the pressure plate shaft (39) is provided with a pressure plate (38) that rotates with the belt winding, the pressure plate shaft (39) is provided with a spring pull plate (40), the shift frame is provided with a first micro switch (41), the first micro switch (41) is located on the side of the spring pull plate (40), and one end of the spring pull plate (40) touches the first micro switch, and one end of the spring pull plate (40) is connected to the fixed column through a tension spring (42).

8. The four-way overhead lift according to claim 1, characterized in that: A second micro switch (54) is provided on the shift frame. An emergency pull tab (55) rotating through a rotating shaft is contacted below the second micro switch (54). The emergency pull tab (55) is connected to a pull line (53).

9. The four-way overhead lift according to claim 1, characterized in that: The shift frame is provided with a flexible display screen (14), a side status indicator light (15) and a lower status indicator light (16).

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