Electric elevator

Abstract

The utility model relates to the field of lifting devices, in particular to an electric lifter. The lifting machine comprises a lifting machine body, a pressing assembly and a rope separating table. The elevator body comprises a shell, a rope penetrating assembly arranged on the shell and used for rope penetrating, a rope disc assembly rotationally arranged on the shell and a driving mechanism arranged in the shell and used for driving the rope disc assembly to rotate. The pressing assembly comprises a fixing table arranged on the shell, a mounting rod arranged between the shell and the fixing table, a pressing frame rotationally arranged on the mounting rod, a pressing wheel rotationally arranged on the lower portion of the pressing frame and facing the rope disc assembly, and a torsional spring arranged on the periphery of the mounting rod in a sleeving mode, and the two ends of the torsional spring abut against the pressing frame and the fixing table correspondingly. The rope distributing table is arranged on the shell and provided with a rope pushing inclined face. According to the utility model, the rope can be effectively clamped into the rotating disc and can be smoothly separated from the rotating disc during lifting, so that the clamping and blocking conditions are prevented.

Description

Technical Field

[0001] The utility model relates to the field of lifting devices, in particular to an electric lift. Background Art

[0002] A lift is a machine used to move people or goods up and down. People can use the lift to move along ropes. Lifts are widely used in fire training, fire rescue, personnel transfer, high-altitude operations and deep well operations.

[0003] Chinese patent publication number CN221587941U discloses an electric rope lifting and crossing device, which includes a rotating disk assembly, a housing, a guide assembly, an elastic stop assembly, a rope threading assembly, and a locking assembly. The guide assemblies are arranged in two parallel groups, each comprising a fixed rod mounted on an end cap and a roller rotatably mounted on the fixed rod, the roller having an annular groove. The elastic stop assembly comprises a guide cylinder mounted on the end cap, a sliding cylinder slidably mounted on the guide cylinder, and a spring A connected at both ends to the guide cylinder and the sliding cylinder. Two rope threading assemblies are arranged on the end cap, one on each side of the rotating disk assembly. This device facilitates threading the rope through the rotating disk and prevents interference and entanglement between the two rollers.

[0004] However, the above technical solution has the following shortcomings:

[0005] The rope extends from one roller, passes through the rotating disk, and is removed from the other roller. If the rope is inserted shallowly into the rotating disk, it will not be tightly wound, and the friction between the rotating disk and the rope will be small. People using the device will easily slip when ascending or descending on the rope, which is unsafe. If the rope is inserted deeply into the rotating disk, it will not be easy for the rope to be released from the rotating disk to be removed from the other roller, and the rope will become stuck between the roller and the rotating disk. Utility Model Content

[0006] The purpose of the utility model is to solve the problems existing in the background technology and to propose an electric lift that can keep the rope effectively stuck in the rotating disk during lifting and make the rope smoothly detach from the rotating disk, thereby preventing the occurrence of jamming and blockage.

[0007] The technical solution of the present utility model is an electric lift, comprising a lift body, a clamping assembly and a rope dividing platform; the lift body comprises a shell, a rope threading assembly arranged on the shell and used for threading a rope, a rope drum assembly rotatably arranged on the shell, and a driving mechanism arranged in the shell and used to drive the rope drum assembly to rotate; the clamping assembly comprises a fixed platform arranged on the shell, a mounting rod arranged between the shell and the fixed platform, a pressure frame rotatably arranged on the mounting rod, a pressure wheel rotatably arranged at the lower part of the pressure frame and facing the rope drum assembly, and a torsion spring sleeved on the outer periphery of the mounting rod and with both ends respectively pressed against the pressure frame and the fixed platform; the rope dividing platform is arranged on the shell and has a rope pushing inclined surface.

[0008] Preferably, the height of the rope splitting platform is higher than the height of the pressure wheel.

[0009] Preferably, the rope drum assembly includes two symmetrically distributed rotating disks, and the surfaces of the two rotating disks facing each other have outwardly protruding ribs. Multiple ribs are evenly distributed around the central axis of the rotating disk, and an annular rope winding groove is formed between the two rotating disks.

[0010] Preferably, the rope threading assembly includes a mounting platform arranged on the shell, an end platform detachably connected to the mounting platform, two rollers rotatably arranged between the mounting platform and the end platform, and an insertion platform arranged on the mounting platform and the end platform and dividing the space between the two rollers into two rope threading channels.

[0011] Preferably, a connecting platform is provided on the shell, and a rotating cover that can cover the outside of the rope drum assembly is rotatably provided on the connecting platform. The outer end of the rotating cover has a mounting groove, and a clamping platform is slidably provided at the mounting groove. The outer end of the clamping platform has a first inclined surface, and a first spring is connected between the clamping platform and the bottom end of the mounting groove. A first protruding pressure platform is provided on the clamping platform, and the end platform has a first clamping groove for the outer end of the clamping platform to be clamped into.

[0012] Preferably, a connecting rod is provided on the connecting platform, a connecting belt is mounted on the connecting rod, a locking handle is mounted on the bottom end of the connecting belt, one lateral end of the locking handle is open and a locking rod is rotatably connected to the top end of the opening, a limiting sleeve is provided on the outer peripheral side of the locking rod to limit the rotation of the locking rod, and the limiting sleeve has notches at the top and bottom ends.

[0013] Preferably, the shell has a battery compartment, in which a battery is placed, and the battery is electrically connected to the driving mechanism. The shell has a second card slot and an installation port, a cover plate is provided at the installation port, the cover plate has a sliding channel, a lock plate is slidably provided at the sliding channel, and the top end of the lock plate can be extended into the second card slot, the top end of the lock plate has a second inclined surface, the lock plate is connected to a second pressure platform, and a second spring is connected between the lock plate and the bottom end of the sliding channel.

[0014] Preferably, the driving mechanism includes a motor and a reducer arranged in the housing, the output end of the motor is connected to the input end of the reducer, and the output end of the reducer is connected to the rope drum assembly.

[0015] Preferably, a holding brake for braking the output end of the motor is provided on the housing.

[0016] Preferably, a speed regulating handle and a control panel are provided on the housing, and the speed regulating handle controls the speed of the motor.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] The utility model can keep the rope effectively stuck in the inner side of the annular rope groove between the two rotating disks during lifting, ensuring sufficient friction between the rope and the rotating disk, preventing slipping during lifting and ensuring the safety of personnel. The elevator can also smoothly separate the rope from the rotating disk after the rope passes around the rotating disk, thereby preventing jamming and blocking, allowing the elevator to operate effectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of an embodiment of the present invention being lifted or lowered on a rope;

[0021] Figure 3 This is a schematic diagram of the distribution of the pressure wheel and the rope distribution platform;

[0022] Figure 4 Schematic diagram of the distribution of two rollers;

[0023] Figure 5 This is a partial structural cross-sectional view of the card holder at the first card slot;

[0024] Figure 6 It is a cross-sectional view of the limiting principle structure of the limiting sleeve;

[0025] Figure 7 A partial cross-sectional view of the structure in which the battery is locked inside the housing.

[0026] Figure numerals: 1, shell; 101, second card slot; 2, mounting platform; 3, end platform; 301, first card slot; 4, roller; 5, insertion platform; 6, rotating disk; 7, pressure wheel; 8, pressure frame; 9, mounting rod; 10, fixed platform; 11, torsion spring; 12, rope-dividing platform; 13, connecting platform; 14, rotating cover; 141, mounting slot; 15, card platform; 151, first pressure platform; 16, first spring; 17, connecting belt; 18, locking handle; 19, locking rod; 20, limiting sleeve; 201, notch; 21, speed control handle; 22, brake; 23, control panel; 24, battery; 25, cover; 26, lock plate; 27, second pressure platform. DETAILED DESCRIPTION

[0027] Example 1

[0028] like Figure 1-Figure 7 As shown, the electric lift proposed in this embodiment includes a lift body, a clamping assembly and a rope distribution platform 12.

[0029] The main body of the elevator includes a shell 1, a rope threading assembly disposed on the shell 1 and used for threading a rope, a rope drum assembly rotatably disposed on the shell 1, and a driving mechanism disposed in the shell 1 and used to drive the rope drum assembly to rotate. The rope threading assembly includes a mounting platform 2 disposed on the shell 1, an end platform 3 detachably connected to the mounting platform 2, two rollers 4 rotatably disposed between the mounting platform 2 and the end platform 3, and an insertion platform 5 disposed on the mounting platform 2 and the end platform 3 and dividing the space between the two rollers 4 into two rope threading channels. The rope passes downward from one rope threading channel, passes through the rope drum assembly, and then passes upward from the other rope threading channel. In addition, an annular groove may be provided on the circumference of the roller 4, and the inner side of the annular groove can be clamped with the rope, facilitating smooth guidance of the rope.

[0030] The rope drum assembly includes two symmetrically arranged rotating disks 6. The surfaces of the two rotating disks 6 facing each other have outwardly projecting ribs, with multiple ribs evenly distributed around the central axis of the rotating disks 6. An annular rope winding groove is formed between the two rotating disks 6. The opening of the annular rope winding groove gradually increases radially outward, allowing for the effective and smooth insertion of ropes. As the rotating disks 6 rotate, the rope is clamped within the annular rope winding groove, and the friction between the rotating disks 6 and the rope is used to achieve the lifting and lowering of the rope.

[0031] The clamping assembly includes a fixed platform 10 arranged on the shell 1, a mounting rod 9 arranged between the shell 1 and the fixed platform 10, a pressure frame 8 rotatably arranged on the mounting rod 9, a pressure wheel 7 rotatably arranged at the lower part of the pressure frame 8 and facing the rope drum assembly, and a torsion spring 11 sleeved on the outer periphery of the mounting rod 9 and with both ends respectively pressed against the pressure frame 8 and the fixed platform 10.

[0032] The rope splitting platform 12 is provided on the housing 1 and has a rope-pushing inclined surface. When the rope moves to the rope splitting platform 12 along with the rotating disk 6, the rope-pushing inclined surface cuts into between the rope and the rotating disk 6, pushing the rope away from the rotating disk 6, so that the rope that has left the rotating disk 6 can move smoothly and will not continue to rotate with the rotating disk 6 and cause jamming.

[0033] The height of the rope splitting platform 12 is higher than that of the pressure wheel 7. The rope splitting platform 12 separates the rope from the rotating disk 6 from a higher position, and the pressure wheel 7 presses the rope onto the rotating disk 6 at a lower position.

[0034] The drive mechanism includes a motor and a reducer disposed within a housing 1. The motor output is connected to the reducer input, and the reducer output is connected to the rope drum assembly. A holding brake 22 is provided on the housing 1 to brake the motor output. The holding brake 22 uses the same holding brake as that used in the electric rope lifting and crossing device disclosed in Chinese Patent Publication No. CN221587941U, and is used to control the motor speed and achieve deceleration braking during lifting and lowering. A speed control knob 21 and a control panel 23 are provided on the housing 1. The speed control knob 21 controls the motor speed. The speed control knob 21 uses a knob similar to that on an electric bicycle, i.e., a Hall effect knob. The motor speed is adjusted by rotating the speed control knob 21. Anti-slip sleeves or anti-slip grooves can be provided on the speed control knob 21 to facilitate gripping and speed adjustment. The control panel 23 can control the start and stop of the entire elevator.

[0035] This embodiment can effectively keep the rope stuck in the inner side of the annular rope groove between the two rotating disks 6 during lifting, ensuring sufficient friction between the rope and the rotating disks 6, preventing slipping during lifting and ensuring personnel safety. This elevator can also smoothly release the rope from the rotating disks 6 after passing around them, thereby preventing jamming and blocking, allowing the elevator to operate effectively.

[0036] Example 2

[0037] like Figure 1-Figure 7 As shown, the electric lift proposed in this embodiment is different from that in the first embodiment. In this embodiment, a connecting platform 13 is provided on the housing 1. A rotating cover 14 that can cover the outside of the rope drum assembly is rotatably provided on the connecting platform 13. The outer end of the rotating cover 14 has a mounting groove 141. After the rotating cover 14 is rotated upward into position, the mounting groove 141 opens upward. A clamping platform 15 is slidably provided at the mounting groove 141. The outer end of the clamping platform 15 has a first inclined surface. A first spring 16 is connected between the clamping platform 15 and the bottom end of the mounting groove 141. A first protruding pressing platform 151 is provided on the clamping platform 15, and the end platform 3 has a first clamping groove 301 for the outer end of the clamping platform 15 to be clamped into. The first clamping groove 301 opens downward.

[0038] In this embodiment, the rotating cover 14 provides a shield and protection for the inner rotating disk 6, preventing the rope from falling off the rotating disk 6. In the initial state, when threading the rope through the rope threading assembly and the rope drum assembly, the first pressing plate 151 is pressed in advance to rotate the rotating cover 14 outward. After the rope is threaded, the rotating cover 14 is rotated upward, and the first inclined surface of the retaining plate 15 automatically locks the top end of the retaining plate 15 into the first retaining groove 301. The first spring 16 exerts an upward force on the retaining plate 15, preventing it from falling off, thus ensuring that the rotating cover 14 effectively shields the inner rotating disk 6.

[0039] Example 3

[0040] like Figure 1、 Figure 2 and Figure 6 As shown, the electric lift proposed in this embodiment is different from the first embodiment. In this embodiment, a connecting rod is provided on the connecting platform 13, and a connecting belt 17 is mounted on the connecting rod. A locking handle 18 is mounted on the bottom end of the connecting belt 17. The locking handle 18 is open at one lateral end and is rotatably connected to a locking rod 19 at the top of the opening. A limiting sleeve 20 is mounted on the outer periphery of the locking rod 19 to limit the rotation of the locking rod 19. The limiting sleeve 20 has notches 201 at both the top and bottom ends. The hook on a person's clothes can be hooked into the inside of the locking handle 18 and the locking rod 19, allowing the person to be suspended underneath, making it easier to be raised and lowered with the lift, and providing higher safety. During operation, the limiting sleeve 20 is moved upward and the notch 201 is aligned with the inside of the locking handle 18. At this time, the limiting sleeve 20 moves away from the open bottom end of the locking handle 18 and can be rotated outward with the locking rod 19, thereby hooking the hook into the inside of the locking handle 18. Then, the locking rod 19 is rotated inward to open the limiting sleeve 20. The limiting sleeve 20 is sleeved on the connection between the locking rod 19 and the locking handle 18 to limit the locking rod 19. The locking rod 19 is not easily turned away from the locking handle 18, thereby improving the anti-falloff effect.

[0041] Example 4

[0042] This embodiment proposes an electric lift. Compared with the first embodiment, in this embodiment, Figure 7 As shown, the housing 1 has a battery compartment, in which a battery 24 is placed. The battery 24 is a rechargeable and removable battery that can be recycled. The battery 24 is electrically connected to the drive mechanism and can power the electrical components of the entire elevator. The housing 1 has a second card slot 101 and a mounting port. A cover plate 25 is fixed to the mounting port. The cover plate 25 has a sliding channel. A lock plate 26 is slidably provided at the sliding channel, and the top end of the lock plate 26 can extend into the second card slot 101. The top end of the lock plate 26 has a second inclined surface. The lock plate 26 is connected to a second pressure platform 27. A second spring is connected between the lock plate 26 and the bottom end of the sliding channel.

[0043] In this embodiment, when replacing a new battery 24, the second pressing platform 27 is pressed downward, which drives the locking plate 26 downward, removing the locking plate 26 from the second slot 101. The battery 24 in the battery compartment is removed and a new battery 24 is installed. The cover 25 is then snapped into place at the installation opening. The second inclined surface automatically snaps the locking plate 26 into the second slot 101. The second spring exerts an upward force on the locking plate 26, preventing it from loosening and the battery 24 from falling out.

[0044] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. Electric lift, characterized in that, include: The elevator body comprises a housing (1), a rope threading assembly arranged on the housing (1) and used for threading a rope, a rope drum assembly rotatably arranged on the housing (1), and a driving mechanism arranged in the housing (1) and used for driving the rope drum assembly to rotate; A pressing assembly comprises a fixing platform (10) arranged on a housing (1), a mounting rod (9) arranged between the housing (1) and the fixing platform (10), a pressing frame (8) rotatably arranged on the mounting rod (9), a pressing wheel (7) rotatably arranged at the lower part of the pressing frame (8) and facing the rope drum assembly, and a torsion spring (11) sleeved on the outer periphery of the mounting rod (9) and with both ends respectively pressed against the pressing frame (8) and the fixing platform (10); The rope-splitting platform (12) is arranged on the housing (1) and has a rope-pushing inclined surface.

2. The electric lift according to claim 1, characterized in that The height of the rope-splitting platform (12) is higher than that of the pressing wheel (7).

3. The electric lift according to claim 1, characterized in that The rope drum assembly comprises two symmetrically distributed rotating disks (6). The surfaces of the two rotating disks (6) facing each other have outwardly protruding ribs. A plurality of ribs are evenly distributed around the central axis of the rotating disks (6). An annular rope winding groove is formed between the two rotating disks (6).

4. The electric lift according to claim 1, wherein: The rope threading assembly comprises a mounting platform (2) arranged on a housing (1), an end platform (3) detachably connected to the mounting platform (2), two rollers (4) rotatably arranged between the mounting platform (2) and the end platform (3), and an insertion platform (5) arranged on the mounting platform (2) and the end platform (3) and dividing the space between the two rollers (4) into two rope threading channels.

5. The electric lift according to claim 4, characterized in that: A connecting platform (13) is provided on the housing (1), a rotating cover (14) capable of covering the outside of the rope drum assembly is rotatably provided on the connecting platform (13), the rotating cover (14) having an outer end with a mounting groove (141), a clamping platform (15) being slidably provided at the mounting groove (141), the outer end of the clamping platform (15) having a first inclined surface, a first spring (16) being connected between the clamping platform (15) and the bottom end of the mounting groove (141), a first convex pressing platform (151) being provided on the clamping platform (15), and the end platform (3) having a first clamping groove (301) for the outer end of the clamping platform (15) to be clamped in.

6. The electric lift according to claim 1, characterized in that A connecting rod is provided on the connecting platform (13), a connecting belt (17) is sleeved on the connecting rod, a locking handle (18) is sleeved on the bottom end of the connecting belt (17), one lateral end of the locking handle (18) is open and a locking rod (19) is rotatably connected at the top end of the opening, a limiting sleeve (20) is sleeved on the outer peripheral side of the locking rod (19) for limiting the rotation of the locking rod (19), and the limiting sleeve (20) has notches (201) at the top and bottom ends.

7. The electric lift according to claim 1, characterized in that The housing (1) has a battery compartment, in which a battery (24) is placed, and the battery (24) is electrically connected to the driving mechanism. The housing (1) has a second card slot (101) and an installation opening, a cover plate (25) is provided at the installation opening, the cover plate (25) has a sliding channel, a lock plate (26) is slidably provided at the sliding channel, the top end of the lock plate (26) can be extended into the second card slot (101), the top end of the lock plate (26) has a second inclined surface, the lock plate (26) is connected to a second pressing platform (27), and a second spring is connected between the lock plate (26) and the bottom end of the sliding channel.

8. The electric lift according to claim 1, characterized in that The driving mechanism comprises a motor and a reducer arranged in a housing (1); the output end of the motor is connected to the input end of the reducer, and the output end of the reducer is connected to the rope drum assembly.

9. The electric lift according to claim 8, characterized in that The housing (1) is provided with a holding brake (22) for braking the output end of the motor.

10. The electric lift according to claim 8, characterized in that The housing (1) is provided with a speed regulating knob (21) and a control panel (23), and the speed regulating knob (21) controls the motor speed.

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