Lift reset structure

Abstract

The utility model discloses an elevator reset structure which comprises a bottom plate, a lifting rope is arranged on one side of the interior of the bottom plate, a through hole is formed in one side of the top of the bottom plate in a penetrating mode, a U-shaped frame is fixedly installed at the position, above the through hole, of the top of the bottom plate, and guide wheels are symmetrically and rotationally connected to the interior of the U-shaped frame. A mounting plate is fixedly mounted on one side of the U-shaped frame, a Hall sensor is fixedly mounted on the lower portion of one side of the mounting plate, through grooves are symmetrically formed in the two sides of the U-shaped frame in a penetrating mode, and a plurality of permanent magnets are fixedly mounted on the sides, close to the Hall sensor, of the two guide wheels. A limiting microswitch is fixedly installed on one side of the U-shaped frame and located below the installation plate. The lifting rope can be prevented from being loosened, knotted and damaged no matter the lifter ascends or descends in the using process, normal operation of the lifter is guaranteed, and practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to an elevator reset structure. Background Technology

[0002] The lifting platform achieves vertical movement by using a stepper motor / servo motor to drive the lifting cable inside the reel to rotate.

[0003] In current field applications of lifting platforms, during the descent operation, the lifting rope tends to reach the ground. Due to inertia, the rope stops falling, but the machine continues to rotate under inertia. This causes the lifting rope to loosen, eventually detaching from the reel and winding under the shaft, becoming knotted and rendering the lifting platform unusable.

[0004] A lifting platform reset structure is proposed to address the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a lifting platform reset structure to solve the problem mentioned in the background art: in the current field application of existing lifting platforms, when the lifting rope is lowered, it is easy to fall to the ground. Then, due to inertia, the lifting rope will stop falling, but the machine will continue to rotate under the inertia. This will cause the lifting rope to loosen, and then the lifting rope will fall off the reel, and then be wound under the shaft and knotted, causing the lifting platform to malfunction and become unusable.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lifting platform reset structure, including a base plate;

[0007] A lifting rope is provided on one side of the inside of the base plate;

[0008] Also includes:

[0009] A through hole is provided on one side of the top of the base plate, and a U-shaped frame is fixedly installed on the top of the base plate above the through hole. Guide wheels are symmetrically rotatably connected inside the U-shaped frame.

[0010] The U-shaped frame has a mounting plate fixedly installed on one side, and a Hall sensor is fixedly installed below one side of the mounting plate. The two sides of the U-shaped frame are symmetrically provided with through slots, and several permanent magnets are fixedly installed on the side of the two guide wheels near the Hall sensor.

[0011] Among them, a limit micro switch is fixedly installed on one side of the U-shaped frame below the mounting plate, and a contact switch is provided at the bottom of the limit micro switch, and a limit component is provided on the lower outer side of the lifting rope.

[0012] Preferably, a fixing plate is provided at the top of the base plate below the U-shaped frame, and two sets of fixing rods are symmetrically installed on both sides of the inside of the fixing plate, and the bottom ends of the two fixing rods are fixedly connected to the base plate.

[0013] Preferably, a connecting plate is fixedly installed on the top of each of the two fixed rods in each group, and a telescopic spring is sleeved on the outside of each of the two groups of fixed rods. One end of the telescopic spring is fixedly connected to the connecting plate, and the other end of the telescopic spring is fixedly connected to the fixed plate.

[0014] Preferably, a through groove is formed through the top center of the fixing plate, and the lifting rope is adapted to and connected to the through groove.

[0015] Preferably, sliding grooves are provided through the lower sides of both sides of the U-shaped frame, and the fixing plate is slidably connected to the sliding grooves.

[0016] Preferably, the limiting component includes a fixed base fixedly installed below the outside of the lifting rope, and two sets of sliding rods are symmetrically slidably connected inside the fixed base. The top of the two sets of sliding rods is fixedly installed with an installation ring, and the installation ring is slidably connected to the lifting rope. The installation ring is adapted to the through hole on the base plate, and the bottom end of the two sets of sliding rods is fixedly installed with a fixing ring.

[0017] Preferably, a buffer spring is fitted on the outer side of each of the two sets of sliding rods, and one end of the buffer spring is fixedly connected to the mounting ring, and the other end of the buffer spring is fixedly connected to the fixed seat.

[0018] Compared with the prior art, the beneficial effects of this utility model are: This elevator reset structure can prevent the lifting rope from becoming loose or knotted during elevator operation, whether ascending or descending, thus preventing damage and ensuring the normal operation of the elevator, improving its practicality. The specific details are as follows:

[0019] 1. When the lifting platform is in operation, the movement of the lifting rope during descent drives two guide wheels to rotate. This rotation of the guide wheels, in turn, drives several permanent magnets on one side to rotate. The rotating permanent magnets generate a magnetic field, which a Hall sensor detects. If one end of the lifting rope touches the ground and stops moving, the guide wheels cease rotation, and the Hall sensor loses its signal. This triggers a motor reversal, causing the lifting rope to reset. The reset of the lifting rope causes the guide wheels to rotate, and the Hall sensor, receiving the signal, stops the lifting platform. This prevents the lifting rope from becoming loose during descent. When the lifting platform is ascending, the movement of the lifting rope... The mounting ring moves upward, and after reaching its limit position, it contacts the fixed plate. The mounting ring continues to move upward, causing the fixed plate to move upward as well. The fixed plate slides on the fixed rod and compresses the telescopic spring, causing the fixed plate to contact the contact switch on the limit micro switch. This triggers the limit micro switch, which stops the motor and prevents the lifting rope from moving further upward when it reaches its highest point. This avoids excessive upward movement that could cause the supporting mechanism at the bottom of the lifting rope to collide with the base plate. During the use of the lift, whether ascending or descending, the lifting rope is prevented from becoming loose or knotted, thus preventing damage and ensuring the normal operation of the lift, thereby improving its practicality.

[0020] 2. During the ascent, the lifting rope moves the mounting ring upward, causing it to insert into the through hole and contact the fixing plate. The impact generated by this contact causes the mounting ring to move downward, allowing the sliding rod to slide on the fixed seat. This compresses the two telescopic springs, buffering the impact of the mounting ring contacting the fixing plate. This prevents excessive impact from damaging the contacts on the limit micro switch, thus improving practicality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the U-shaped frame structure of this utility model;

[0024] Figure 4 This utility model Figure 2 Enlarged structural diagram of region A in the middle;

[0025] Figure 5 This is a schematic diagram of the limiting component structure of this utility model.

[0026] In the diagram: 1. Base plate; 101. Lifting rope; 102. U-shaped frame; 103. Guide wheel; 104. Mounting plate; 105. Hall sensor; 106. Permanent magnet; 107. Through slot; 108. Limit micro switch; 109. Fixing plate; 110. Fixing rod; 111. Connecting plate; 112. Telescopic spring; 113. Through slot; 114. Sliding slot; 2. Limiting assembly; 201. Fixing seat; 202. Sliding rod; 203. Mounting ring; 204. Buffer spring; 205. Fixing ring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 This utility model provides a technical solution: a lifting platform reset structure, including a base plate 1, with a lifting rope 101 provided on one side of the interior of the base plate 1, and further including: a through hole is opened through one side of the top of the base plate 1, and a U-shaped frame 102 is fixedly installed above the through hole on the top of the base plate 1, and guide wheels 103 are symmetrically rotatably connected inside the U-shaped frame 102, wherein a mounting plate 104 is fixedly installed on one side of the U-shaped frame 102, and a Hall sensor 105 is fixedly installed below one side of the mounting plate 104, and through slots 107 are symmetrically opened through both sides of the U-shaped frame 102, and the two... Several permanent magnets 106 are fixedly installed on the side of each guide wheel 103 near the Hall sensor 105. A limit micro switch 108 is fixedly installed on one side of the U-shaped frame 102 below the mounting plate 104, and a contact switch is provided at the bottom of the limit micro switch 108. A limit component 2 is provided on the lower outer side of the lifting rope 101. This prevents the lifting rope 101 from becoming loose or knotted during the use of the lifting machine, avoids damage, ensures the normal operation of the lifting machine, and improves its practicality.

[0029] A fixing plate 109 is located at the top of the base plate 1, below the U-shaped frame 102. Two sets of fixing rods 110 are symmetrically installed on both sides of the interior of the fixing plate 109, and the bottom ends of both fixing rods 110 are fixedly connected to the base plate 1, limiting the movement of the fixing plate 109. A connecting plate 111 is fixedly installed at the top of each set of two fixing rods 110, and a telescopic spring 112 is sleeved on the outside of each set of fixing rods 110. One end of the telescopic spring 112 is fixedly connected to the connecting plate 111, and the other end is fixedly connected to the fixing plate 109, allowing the fixing plate 109 to automatically return to its original position after movement. A through groove 113 is formed through the center of the top of the fixing plate 109, and a lifting rope 101 is adapted to and connected to the through groove 113, allowing the lifting rope 101 to pass through the through groove 113. Sliding grooves 114 are formed through the lower sides of both sides of the U-shaped frame 102, and a fixing... Plate 109 is slidably connected to sliding groove 114, allowing fixed plate 109 to move upward below U-shaped frame 102. Limiting component 2 includes fixed base 201 fixedly installed below the outside of lifting rope 101. Two sets of sliding rods 202 are symmetrically slidably connected inside fixed base 201. Mounting rings 203 are fixedly installed on the top of the two sets of sliding rods 202. Mounting rings 203 are slidably connected to lifting rope 101 and adapted to through holes on base plate 1. Fixed rings 205 are fixedly installed at the bottom of the two sets of sliding rods 202, allowing mounting rings 203 to move. Buffer springs 204 are sleeved on the outer side of each set of sliding rods 202. One end of buffer spring 204 is fixedly connected to mounting ring 203, and the other end of buffer spring 204 is fixedly connected to fixed base 201, buffering the impact generated when mounting ring 203 moves upward and contacts fixed plate 109.

[0030] Working principle: Before using this type of elevator reset structure, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 5As shown, when the lifting platform is in use and the lifting rope 101 is lowered, the movement of the lifting rope 101 drives the two guide wheels 103 to rotate. The rotation of the guide wheels 103 drives several permanent magnets 106 on one side to rotate. The permanent magnets 106 generate a magnetic field after rotation, and the Hall sensor 105 receives the magnetic field signal. If one end of the lifting rope 101 touches the ground, the lifting rope 101 will stop moving. At this time, the guide wheels 103 will stop rotating, and the Hall sensor 105, having lost its signal, can control the motor to reverse, causing the lifting rope 101 to reset. The reset of the lifting rope 101 causes the guide wheels 103 to rotate, and the Hall sensor 105, receiving the signal, stops the lifting platform. This prevents the lifting rope 101 from becoming loose during descent. If the lifting platform is ascending, the movement of the lifting rope 101... The mounting ring 203 moves upward, and after it reaches its limit position, it contacts the fixing plate 109. The mounting ring 203 continues to move upward, causing the fixing plate 109 to move upward. The fixing plate 109 slides on the fixing rod 110 and compresses the telescopic spring 112, causing the fixing plate 109 to contact the contact switch on the limit micro switch 108. This triggers the limit micro switch 108, which stops the motor and allows the lifting rope 101 to stop moving upward when it reaches its highest point. This prevents the lifting rope 101 from colliding with the base plate 1 due to excessive upward movement. This ensures that the lifting rope 101 does not become loose or knotted during the use of the elevator, preventing damage and ensuring the normal operation of the elevator, thus improving its practicality.

[0031] During the ascent, the lifting rope 101 drives the mounting ring 203 upward, causing it to insert into the through hole and contact the fixing plate 109. The impact generated by this contact can cause the mounting ring 203 to move downward, allowing the sliding rod 202 to slide on the fixing seat 201. This compresses the two telescopic springs 112, which can buffer the impact generated by the mounting ring 203 contacting the fixing plate 109. This prevents excessive impact force from damaging the contact switch on the limit micro switch 108, thus improving practicality.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hoist resetting structure, comprising a base plate (1); A lifting rope (101) is provided on one side of the inside of the base plate (1); Its features are, Also includes: A through hole is provided on one side of the top of the base plate (1), and a U-shaped frame (102) is fixedly installed on the top of the base plate (1) above the through hole. Guide wheels (103) are symmetrically rotatably connected inside the U-shaped frame (102). Among them, a mounting plate (104) is fixedly installed on one side of the U-shaped frame (102), and a Hall sensor (105) is fixedly installed below one side of the mounting plate (104). The two sides of the U-shaped frame (102) are symmetrically provided with through slots (107), and several permanent magnets (106) are fixedly installed on the side of the two guide wheels (103) near the Hall sensor (105). Among them, a limit micro switch (108) is fixedly installed on one side of the U-shaped frame (102) below the mounting plate (104), and a contact switch is provided at the bottom of the limit micro switch (108), and a limit component (2) is provided on the outside of the lifting rope (101).

2. The elevator reset structure according to claim 1, characterized in that: The top of the base plate (1) is provided with a fixing plate (109) located below the U-shaped frame (102), and two sets of fixing rods (110) are symmetrically installed on both sides of the inside of the fixing plate (109), and the bottom ends of the two fixing rods (110) are fixedly connected to the base plate (1).

3. The elevator reset structure according to claim 2, characterized in that: Each of the two fixed rods (110) in each group is fixedly mounted with a connecting plate (111) on its top, and each of the two fixed rods (110) is fitted with a telescopic spring (112), with one end of the telescopic spring (112) fixedly connected to the connecting plate (111) and the other end of the telescopic spring (112) fixedly connected to the fixed plate (109).

4. The elevator reset structure according to claim 2, characterized in that: A through groove (113) is provided through the top center of the fixed plate (109), and the lifting rope (101) is adapted to be connected to the through groove (113).

5. The elevator reset structure according to claim 2, characterized in that: The U-shaped frame (102) has sliding grooves (114) extending through its lower sides, and the fixing plate (109) is slidably connected to the sliding grooves (114).

6. The elevator reset structure according to claim 1, characterized in that: The limiting component (2) includes a fixed base (201) fixedly installed on the lower part of the lifting rope (101), and two sets of sliding rods (202) are symmetrically slidably connected inside the fixed base (201). The top of the two sets of sliding rods (202) is fixedly installed with an installation ring (203), and the installation ring (203) is slidably connected to the lifting rope (101). The installation ring (203) is adapted to the through hole on the base plate (1), and the bottom end of the two sets of sliding rods (202) is fixedly installed with a fixing ring (205).

7. The elevator reset structure according to claim 6, characterized in that: Both sets of sliding rods (202) are fitted with buffer springs (204) on their outer sides, and one end of the buffer springs (204) is fixedly connected to the mounting ring (203), and the other end of the buffer springs (204) is fixedly connected to the fixed seat (201).

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