CN112429681A - Electric scissor type lifting platform - Google Patents
Electric scissor type lifting platform Download PDFInfo
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- CN112429681A CN112429681A CN202011409363.2A CN202011409363A CN112429681A CN 112429681 A CN112429681 A CN 112429681A CN 202011409363 A CN202011409363 A CN 202011409363A CN 112429681 A CN112429681 A CN 112429681A
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- side wall
- fixedly connected
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- supporting
- rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/042—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations actuated by lazy-tongs mechanisms or articulated levers
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- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Manipulator (AREA)
Abstract
The invention relates to the field of lifting equipment, in particular to an electric scissor-fork type lifting platform which comprises a lifting platform body, a supporting mechanism, a rotating mechanism, a stretching mechanism, a connecting rod, a fixing sleeve, a limiting mechanism, a fixing mechanism, a connecting mechanism, a threaded sleeve, a universal joint and a lead screw. This kind of electronic fork lift platform of cutting can open supporting mechanism to support it before lift platform rises automatically, can descend totally to target in place the back automatically with strutting arrangement pack up simultaneously, makes its use more reliable and more stable, more convenient.
Description
Technical Field
The invention relates to the field of lifting equipment, in particular to an electric scissor type lifting platform.
Background
The lifting platform is a multifunctional hoisting loading and unloading mechanical device, which can be divided into a fixed type, a movable type, a guide rail type and a crank arm type, wherein the fixed type comprises a scissor-fork type lifting goods lift, a chain type lifter, a loading and unloading platform, an attached type electric construction platform and the like. The scissor-fork type lifting platform is mainly used for lifting, loading and unloading goods from a basement to floors in the logistics industry, production lines and can also be used for lifting stages, lifting operation platforms and the like; the scissor fork mechanical structure of the lifting platform has higher stability when the lifting platform is lifted, and the wide operating platform and the higher bearing capacity enable the high-altitude operation range to be larger and are suitable for simultaneous operation of a plurality of people; the device has higher working efficiency at high altitude and more guaranteed safety, thereby being widely applied.
However, the existing lifting platform is driven by a pump station and an oil cylinder, the output shaft of one oil cylinder is abutted against and hinged on the rotating shaft, the lifting of the platform is realized by pushing the rotating shaft to move, the output shaft of the oil cylinder is required to be connected to the middle part of the rotating shaft by the structure, otherwise, the stress is easily unbalanced, the lifting platform is unstable in operation, and a related supporting mechanism is lacked, so that great safety risk exists.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an electric scissor type lifting platform.
The technical scheme adopted by the invention for solving the technical problems is as follows: an electric scissor-fork type lifting platform comprises a lifting platform body, a supporting mechanism, a rotating mechanism, a stretching mechanism, a connecting rod, a fixing sleeve, a limiting mechanism, a fixing mechanism, a connecting mechanism, a threaded sleeve, a universal joint and a screw rod, wherein the lifting platform body comprises a bearing platform, a scissor rod and a bottom plate, the side wall of the bottom plate is provided with the supporting mechanisms of a plurality of arrays, the side wall of the bottom plate is provided with the stretching mechanism for unfolding the supporting mechanism and the rotating mechanism for rotating the supporting mechanism, the side wall of the bottom plate is provided with the limiting mechanism for avoiding the resetting of the supporting mechanism, the side wall of the stretching mechanism is provided with the fixing mechanism, the side wall of the scissor rod is fixedly connected with the connecting rod, the fixing sleeve is fixedly sleeved on the side wall of the connecting rod, the screw rod is fixedly connected with the screw rod on, the lower end of the threaded sleeve is fixedly connected with a universal joint, and a connecting mechanism is arranged between the universal joint and the stretching mechanism;
the supporting mechanism comprises a notch formed in the side wall of the bottom plate, the side wall of the notch is fixedly connected with two symmetrically-arranged fixed blocks, the opposite side walls of the two fixed blocks are rotatably connected with a lantern ring through a rotating shaft, supporting legs are inserted into the side walls of the lantern ring, each supporting leg comprises a supporting surface which is obliquely arranged, and the side walls of the supporting surfaces are provided with a plurality of fixing strips which are arranged in an array manner;
the stretching mechanism comprises a supporting plate which is fixed on the bottom plate and arranged in a U shape, the upper side wall of the supporting plate is fixedly connected with a motor, the output end of the motor penetrates through the side wall of the bottom plate and is fixedly connected with a driving gear, the side wall of the bottom plate is rotatably connected with a driven gear through a transmission shaft, the driven gear is meshed with the driving gear, the other end of the transmission shaft is connected with a rotating disc through a fixing mechanism, the side wall of the rotating disc is rotatably connected with a rotating rod through a connecting pin, the other end of the rotating rod is rotatably connected with the side wall of the supporting leg, the side wall of the rotating disc is fixedly connected with a limiting block, and the upper side;
the rotating mechanism comprises a threaded rod fixedly sleeved at the output end of the motor, an annular groove is formed in the top end of the side wall of the threaded rod, a moving plate is in threaded connection with the side wall of the threaded rod, a U-shaped plate is fixedly connected to the upper side wall of the bottom plate, a sliding rod is connected to the side wall of the U-shaped plate in a sliding mode, the other end of the sliding rod is fixed to the side wall of the moving plate, a supporting column is fixedly connected to the side wall of the moving plate, and the supporting column;
the fixing mechanism comprises a sleeve fixedly sleeved on the side wall of the transmission shaft, a plurality of strip-shaped openings arranged in an array are formed in the side wall of the sleeve, a first telescopic mechanism is fixedly connected to the side wall of the rotating disc, a T-shaped clamping block is connected to the side wall of the first telescopic mechanism and abuts against the side wall of each strip-shaped opening, and a chamfer is formed in the side wall of each T-shaped clamping block;
the connecting mechanism comprises a first spline groove arranged on the side wall of the transmission shaft, the side wall of the first spline groove is connected with an inserting key in a sliding manner, the side wall of the inserting key is provided with a sharp corner, a connecting sleeve is inserted into the side wall of the transmission shaft, the inserting key is fixed with the side wall of the connecting sleeve, the side wall of the bottom plate is fixedly connected with a U-shaped mounting frame, the side wall of the mounting frame is rotatably connected with a connecting shaft, the upper end of the connecting shaft is fixed with a universal joint, the side wall of the connecting shaft is provided with a second spline groove, the second spline groove is in one-to-one correspondence with the first spline groove, the side wall of the transmission shaft is sleeved with a first spring, the two ends of the first spring are respectively fixedly connected with the side walls of the mounting frame and the connecting sleeve, the side wall of the rotating disc is fixedly connected with a second telescopic mechanism, the L-shaped sliding plate comprises two symmetrical first sliding surfaces which are obliquely arranged, and the connecting sleeve slides on the first sliding surfaces.
Specifically, first telescopic machanism includes the first connecting plate that two symmetries of fixed connection set up on the rolling disc lateral wall, two the relative lateral wall fixedly connected with first guide arm of first connecting plate, the lateral wall cover of T shape fixture block is established on the lateral wall of first guide arm, and the lateral wall of first connecting plate is run through to the one end of T shape fixture block, the lateral wall cover of first guide arm is equipped with the second spring, and the both ends of second spring offset with the lateral wall of T shape fixture block and first connecting plate respectively.
Specifically, the second telescopic mechanism comprises two second connecting plates which are symmetrically arranged and fixedly connected to the side wall of the rotating disc, and two second connecting plates are fixedly connected to the opposite side walls of the second connecting plates and slide on the side walls of the second connecting plates, a third spring is sleeved on the side wall of each second connecting plate, and the two ends of each third spring are respectively abutted to the side walls of the L-shaped sliding plate and the corresponding second connecting plate.
Specifically, stop gear includes fixed connection third telescopic machanism on the bottom plate lateral wall, third telescopic machanism's lateral wall is connected with the slider, and the slider includes the second glide plane that the slope set up, and the movable plate slides on the second glide plane, the last lateral wall fixedly connected with supporting shoe of slider, and the supporting shoe includes the third glide plane that the slope set up.
Specifically, the third telescopic machanism includes the fixed plate that two symmetries of fixed connection set up on the bottom plate lateral wall, two the dead lever that two symmetries of lateral wall fixedly connected with that the fixed plate is relative set up, the slider cover is established on the lateral wall of dead lever, the lateral wall cover of dead lever is equipped with the fourth spring, and the both ends of fourth spring offset with the lateral wall of fixed plate and slider respectively.
The invention has the beneficial effects that:
(1) the electric scissor-fork type lifting platform is provided with the extension mechanism, the rotation of the motor drives the driving gear to rotate so as to drive the driven gear and the transmission shaft to rotate, the rotation of the transmission shaft drives the sleeve to rotate by the arrangement of the fixing mechanism, the T-shaped clamping block is abutted against the strip-shaped opening by the elasticity of the second spring at the moment so as to drive the rotating disc to rotate, the rotation of the rotating disc drives the rotating rod to rotate so as to extend the supporting leg, when the first limiting plate abuts against the second limiting plate, the first limiting plate does not rotate any more, the T-shaped clamping block slides on the side wall of the strip-shaped opening at the moment so that the sleeve can continue to rotate, the rotation of the motor drives the threaded rod to rotate so as to drive the moving plate to move upwards along the side wall of the U-shaped plate, when the rotating disc stops rotating, the support column abuts against the lower side wall of the rotating disc, and then make the landing leg rotate downwards along the lateral wall of fixed block for the holding surface offsets with ground, accomplishes the abundant support to the lift platform body, and is more stable, safe when making its use.
(2) The electric scissor-type lifting platform is provided with the connecting mechanism, when the rotating disc moves upwards, the connecting sleeve slides on the side wall of the first sliding surface, so that the L-shaped sliding plate slides along the second guide rod, meanwhile, the third spring contracts, when the L-shaped sliding plate moves to the upper part of the connecting sleeve, the L-shaped sliding plate resets, when the L-shaped sliding plate is abutted against the lower side wall of the mounting frame, the electromagnet is started, at the moment, the electromagnet attracts the connecting sleeve to enable the connecting sleeve to move upwards, the inserting key slides along the side wall of the first spline groove and is inserted into the second spline groove, so that the rotation of the transmission shaft drives the rotation of the connecting shaft, and then make the lead screw along the lateral wall upward movement of thread bush to open the scissors fork pole, accomplish the lifting operation of lift platform body, guaranteed to open the lifting operation again after target in place at extension mechanism completely, make its use safe and reliable more.
(3) The electric scissor-fork type lifting platform is provided with the limiting mechanism, the movable plate moves upwards along the side wall of the threaded rod and moves to the annular groove, the upper side wall of the sliding block is abutted to the lower side wall of the movable plate, when the descending operation is needed, the motor is reversed, at the moment, the movable plate can not move downwards due to the limitation of the slide block, so that the descending process of the lifting platform body is avoided, the extension mechanism is retracted and reset, so that the use of the scissors is safer, when the scissors rod is retracted in place, namely, when the lifting platform body is lowered to the lowest, the connecting rod is propped against the third sliding surface, so that the supporting block drives the sliding block to move rightwards along the fixed rod, at the moment, the moving plate is not propped against the second sliding surface any more, therefore, the screw rod moves downwards along with the reverse rotation of the screw rod, so that the extension mechanism is folded and reset, and the use process of the extension mechanism is safer and more reliable.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic front perspective view of an electric scissor lift platform according to the present invention;
fig. 2 is a schematic bottom perspective view of the electric scissor lift platform provided in the present invention;
FIG. 3 is a schematic diagram of the internal structure of the electric scissor lift platform provided by the present invention;
FIG. 4 is a schematic structural diagram of a supporting mechanism in the electric scissor lift platform provided by the invention;
FIG. 5 is a schematic structural view of a rotary plate in the electric scissor lift platform provided by the present invention;
FIG. 6 is a schematic structural diagram of a rotating mechanism in the electric scissor lift platform provided by the invention;
FIG. 7 is a schematic structural diagram of a connection mechanism in an electric scissor lift platform according to the present invention;
FIG. 8 is a schematic structural diagram of a support block in the electric scissor lift platform provided by the present invention;
fig. 9 is a schematic structural diagram of a connecting sleeve in the electric scissor lift platform provided by the invention;
fig. 10 is an enlarged schematic view of a portion a in fig. 7.
In the figure: 1. a lifting platform body; 101. a bearing table; 102. shearing a fork rod; 103. a base plate; 2. a support mechanism; 201. a notch; 202. a fixed block; 203. a collar; 204. a support leg; 205. a support surface; 3. a rotating mechanism; 301. a threaded rod; 302. moving the plate; 303. a pillar; 304. a slide bar; 305. a U-shaped plate; 306. an annular groove; 4. an extension mechanism; 401. rotating the disc; 402. rotating the rod; 403. a connecting pin; 404. a first limit plate; 405. a second limiting plate; 406. a motor; 407. a support plate; 408. a driving gear; 409. a drive shaft; 410. a driven gear; 411. a limiting block; 5. a connecting rod; 6. fixing a sleeve; 7. a limiting mechanism; 701. a support block; 702. a third sliding surface; 703. a slider; 704. a second sliding surface; 8. a fixing mechanism; 801. a strip-shaped opening; 802. a sleeve; 803. a T-shaped fixture block; 804. chamfering; 9. a connecting mechanism; 901. connecting sleeves; 902. an L-shaped slide plate; 903. a first sliding surface; 904. inserting a key; 905. a first spline groove; 906. a connecting shaft; 907. a second spline groove; 908. sharp corners; 909. a mounting frame; 910. a first spring; 10. a threaded sleeve; 11. a universal joint; 12. a screw rod; 13. a first telescoping mechanism; 1301. a first connecting plate; 1302. a first guide bar; 1303. a second spring; 14. a second telescoping mechanism; 1401. a second connecting plate; 1402. a second guide bar; 1403. a third spring; 15. a third telescoping mechanism; 1501. a fixing plate; 1502. fixing the rod; 1503. and a fourth spring.
Detailed Description
The following description of the embodiments of the present invention is provided by way of specific examples, and those skilled in the art will appreciate the advantages and utilities of the present invention from the disclosure herein. It should be noted that the drawings provided in the following embodiments are only for illustrative purposes, are schematic drawings rather than actual drawings, and are not to be construed as limiting the invention, and in order to better illustrate the embodiments of the invention, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is merely for convenience of description and simplicity of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings for the above applications according to specific situations.
As shown in fig. 1-10, the electric scissor lift platform of the present invention comprises a lift platform body 1, a support mechanism 2, a rotating mechanism 3, an extending mechanism 4, a connecting rod 5, a fixing sleeve 6, a limiting mechanism 7, a fixing mechanism 8, a connecting mechanism 9, a threaded sleeve 10, a universal joint 11 and a screw rod 12, wherein the lift platform body 1 comprises a bearing platform 101, a scissor rod 102 and a bottom plate 103, the side wall of the bottom plate 103 is provided with a plurality of arrays of support mechanisms 2, the side wall of the bottom plate 103 is provided with the extending mechanism 4 for extending the support mechanisms 2 and the rotating mechanism 3 for rotating the support mechanisms 2, the side wall of the bottom plate 103 is provided with the limiting mechanism 7 for preventing the support mechanisms 2 from resetting, the side wall of the extending mechanism 4 is provided with the fixing mechanism 8, the side wall of the scissor rod 102 is fixedly connected with the connecting rod 5, the side wall of the connecting, a screw rod 12 is fixedly connected to the lower side wall of the fixed sleeve 6, a threaded sleeve 10 is in threaded connection with the side wall of the screw rod 12, a universal joint 11 is fixedly connected to the lower end of the threaded sleeve 10, and a connecting mechanism 9 is arranged between the universal joint 11 and the extension mechanism 4;
the supporting mechanism 2 comprises a notch 201 formed in the side wall of the bottom plate 103, the side wall of the notch 201 is fixedly connected with two symmetrically arranged fixed blocks 202, the opposite side walls of the two fixed blocks 202 are rotatably connected with a lantern ring 203 through a rotating shaft, the side wall of the lantern ring 203 is inserted with a supporting leg 204, the supporting leg 204 comprises a supporting surface 205 which is obliquely arranged, and the side wall of the supporting surface 205 is provided with a plurality of fixing strips which are arranged in an array manner;
the stretching mechanism 4 comprises a supporting plate 407 fixed on the bottom plate 103 and arranged in a U shape, a motor 406 is fixedly connected to the upper side wall of the supporting plate 407, the output end of the motor 406 penetrates through the side wall of the bottom plate 103 and is fixedly connected with a driving gear 408, the side wall of the bottom plate 103 is rotatably connected with a driven gear 410 through a transmission shaft 409, the driven gear 410 is meshed with the driving gear 408, the other end of the transmission shaft 409 is connected with a rotating disc 401 through a fixing mechanism 8, the side wall of the rotating disc 401 is rotatably connected with a rotating rod 402 through a connecting pin 403, the other end of the rotating rod 402 is rotatably connected with the side wall of the supporting leg 204, a limiting block 411 is fixedly connected to the side wall of the rotating disc 401, a first limiting plate 404 and a second limiting plate 405 are fixedly connected to the upper side wall of the bottom plate 103, the rotation of, the rotation of the transmission shaft 409 drives the sleeve 802 to rotate, at the moment, the elastic force of the second spring 1303 tightly presses the T-shaped fixture block 803 against the strip-shaped opening 801, so as to drive the rotating disc 401 to rotate, and the rotation of the rotating disc 401 drives the rotating rod 402 to rotate, so as to extend the supporting leg 204;
the rotating mechanism 3 comprises a threaded rod 301 fixedly sleeved at the output end of a motor 406, an annular groove 306 is arranged at the top end of the side wall of the threaded rod 301, a moving plate 302 is in threaded connection with the side wall of the threaded rod 301, a U-shaped plate 305 is fixedly connected with the upper side wall of a bottom plate 103, a sliding rod 304 is in sliding connection with the side wall of the U-shaped plate 305, the other end of the sliding rod 304 is fixed with the side wall of the moving plate 302, a support column 303 is fixedly connected with the side wall of the moving plate 302, the support column 303 is located below a rotating disc 401, the rotation of the motor 406 drives the threaded rod 301 to rotate, and further drives the moving plate 302 to move upwards along the side wall of the U-shaped plate 305, after the rotating disc 401 stops rotating, the support column 303 abuts against the lower side wall of the rotating disc 401, so as to drive the rotating disc 401, the lifting platform body 1 is fully supported, so that the lifting platform is more stable and safer to use;
the fixing mechanism 8 comprises a sleeve 802 fixedly sleeved on the side wall of the transmission shaft 409, the side wall of the sleeve 802 is provided with a plurality of strip-shaped openings 801 arranged in an array, the side wall of the rotating disc 401 is fixedly connected with a first telescopic mechanism 13, the side wall of the first telescopic mechanism 13 is connected with a T-shaped fixture block 803, the T-shaped fixture block 803 abuts against the side wall of the strip-shaped opening 801, the side wall of the T-shaped fixture block 803 is provided with a chamfer 804, the rotation of the transmission shaft 409 drives the sleeve 802 to rotate, at the moment, the T-shaped fixture block 803 abuts against the strip-shaped opening 801 through the elastic force of a second spring 1303, so that the rotating disc 401 is driven to rotate, when the first limiting plate 404 abuts against the second limiting plate 405, the first limiting plate 404 does not rotate any more, and at the moment, the T-shaped;
the connecting mechanism 9 comprises a first spline groove 905 arranged on the side wall of the transmission shaft 409, the side wall of the first spline groove 905 is slidably connected with an inserting key 904, the side wall of the inserting key 904 is provided with a sharp corner 908, the side wall of the transmission shaft 409 is inserted with a connecting sleeve 901, the inserting key 904 is fixed with the side wall of the connecting sleeve 901, the side wall of the bottom plate 103 is fixedly connected with a mounting frame 909 arranged in a U shape, the side wall of the mounting frame 909 is rotatably connected with a connecting shaft 906, the upper end of the connecting shaft 906 is fixed with the universal joint 11, the side wall of the connecting shaft 906 is provided with a second spline groove 907, the second spline grooves 907 correspond to the first spline grooves 905 one by one, the side wall of the transmission shaft 409 is sleeved with a first spring 910, the two ends of the first spring 910 are respectively fixedly connected with the mounting frame 909 and the side wall of the connecting sleeve 901, the side wall of the rotating, and the horizontal end of the L-shaped sliding plate 902 is provided with an electromagnet, the L-shaped sliding plate 902 comprises two first sliding surfaces 903 which are symmetrically and obliquely arranged, and the connecting sleeve 901 slides on the first sliding surface 903, when the rotating disc 401 moves upwards, the connecting sleeve 901 slides on the side wall of the first sliding surface 903, so that the L-shaped sliding plate 902 slides along the second guide rod 1402, and simultaneously the third spring 1403 contracts, when the L-shaped sliding plate 902 moves above the connecting sleeve 901, the L-shaped sliding plate 902 resets, when the L-shaped sliding plate 902 abuts against the lower side wall of the mounting frame 909, the electromagnet is started, at this time, the electromagnet attracts the connecting sleeve 901 to move upwards, the inserting key 904 slides along the side wall of the first spline groove 905 and is inserted into the second spline groove 907, so that the rotation of the transmission shaft drives the connecting shaft 906 to rotate, and further the lead screw 12 moves upwards along the side wall of the threaded sleeve 10, thereby opening the scissor lever, the lifting operation of the lifting platform body 1 is completed, and the lifting operation is ensured after the extension mechanism 4 is completely opened in place.
Specifically, the first telescopic mechanism 13 includes two first connecting plates 1301 that are symmetrically arranged and fixedly connected to the side wall of the rotating disc 401, the side wall opposite to the two first connecting plates 1301 is fixedly connected with a first guide rod 1302, the T-shaped fixture block 803 is sleeved on the side wall of the first guide rod 1302, one end of the T-shaped fixture block 803 penetrates through the side wall of the first connecting plate 1301, the side wall of the first guide rod 1302 is sleeved with a second spring 1303, and two ends of the second spring 1303 respectively abut against the side walls of the T-shaped fixture block 803 and the first connecting plate 1301, so as to guide and reset the movement of the T-shaped fixture block 803.
Specifically, the second telescopic mechanism 14 includes two symmetrically disposed second connecting plates 1401 fixedly connected to the side walls of the rotating disc 401, two opposite side walls of the second connecting plates 1401 are fixedly connected to second guide rods 1402, the L-shaped sliding plate 902 slides on the side walls of the second guide rods 1402, the side walls of the second guide rods 1402 are sleeved with third springs 1403, two ends of each third spring 1403 are respectively abutted to the side walls of the L-shaped sliding plate 902 and the second connecting plate 1401, and a guiding and resetting effect is exerted on the movement of the L-shaped sliding plate 902.
Specifically, the limiting mechanism 7 includes a third telescoping mechanism 15 fixedly connected to the side wall of the bottom plate 103, the side wall of the third telescoping mechanism 15 is connected to a sliding block 703, the sliding block 703 includes a second sliding surface 704 arranged obliquely, the moving plate 302 slides on the second sliding surface 704, the upper side wall of the sliding block 703 is fixedly connected to a supporting block 701, the supporting block 701 includes a third sliding surface 702 arranged obliquely, the moving plate 302 moves upward along the side wall of the threaded rod 301 and moves to the annular groove 306, and the upper side wall of the sliding block 703 abuts against the lower side wall of the moving plate 302, when a descending operation is required, the motor 406 is rotated reversely, at this time, due to the limitation of the sliding block 703, the moving plate 302 cannot move downward, so that the situation that the extending mechanism 4 is retracted and reset during the descending process of the lifting platform body 1 is avoided, the use of the lifting platform body is safer, when the scissor rod 102 is retracted in place, that the, the connecting rod 5 abuts against the third sliding surface 702, so that the supporting block 701 with the slider 703 moves rightward along the fixed rod 1502, and at this time, the moving plate 302 does not abut against the second sliding surface 704 any more, and moves downward along with the reverse rotation of the threaded rod 301, so as to fold and reset the extension mechanism 4.
Specifically, the third telescopic mechanism 15 includes two symmetrically-arranged fixing plates 1501 fixedly connected to the side walls of the bottom plate 103, two symmetrically-arranged fixing rods 1502 fixedly connected to the opposite side walls of the two fixing plates 1501, the slider 703 is sleeved on the side walls of the fixing rods 1502, a fourth spring 1503 is sleeved on the side wall of the fixing rods 1502, and two ends of the fourth spring 1503 respectively abut against the side walls of the fixing plates 1501 and the slider 703, so as to guide and limit the movement of the slider 703.
The working principle is as follows: when the electric wrench works, firstly, the motor 406 is started, the rotation of the motor 406 drives the driving gear 408 to rotate, and further drives the driven gear 410 and the transmission shaft 409 to rotate, the rotation of the transmission shaft 409 drives the sleeve 802 to rotate by arranging the fixing mechanism 8, at this time, the elastic force of the second spring 1303 tightly presses the T-shaped fixture block 803 against the strip-shaped opening 801, so as to drive the rotating disc 401 to rotate, the rotation of the rotating disc 401 drives the rotating rod 402 to rotate, so as to extend the supporting leg 204, when the first limiting plate 404 abuts against the second limiting plate 405, the first limiting plate 404 does not rotate any more, at this time, the T-shaped fixture block 803 slides on the side wall of the strip-shaped opening 801, so that the sleeve 802 can continue to rotate, the rotation of the motor 406 drives the rotation of the threaded rod 301, and further drives the moving plate 302 to move upwards along the side wall of the U-shaped plate 305, when the, thereby driving the rotating disc 401 to move upwards along the sidewall of the sleeve 802, further making the supporting leg 204 rotate downwards along the sidewall of the fixed block 202, making the supporting surface 205 abut against the ground, when the moving plate 302 moves to the annular groove 306, the moving plate 302 does not rise any more, completing the sufficient support of the lifting platform body 1, making it more stable and safe when in use, by providing the connecting mechanism 9, when the rotating disc 401 moves upwards, the connecting sleeve 901 slides on the sidewall of the first sliding surface 903, making the L-shaped sliding plate 902 slide along the second guide rod 1402, and the third spring 1403 contracts, when the L-shaped sliding plate 902 moves above the connecting sleeve 901, the L-shaped sliding plate 902 resets, when the L-shaped sliding plate 902 abuts against the lower sidewall of the mounting rack 909, the electromagnet is started, at this time, the electromagnet attracts the connecting sleeve 901 to move upwards, the inserting key 904 slides along the sidewall of the first spline groove 905 and is inserted into the second spline groove 907, the rotation of the transmission shaft 409 drives the connection shaft 906 to rotate, so that the screw rod 12 moves upwards along the side wall of the threaded sleeve 10, the scissor rod 102 is opened, the lifting operation of the lifting platform body 1 is completed, the lifting operation after the extension mechanism 4 is completely opened in place is ensured, the lifting platform is safer and more reliable to use, when the lifting platform body 1 needs to be lowered, the motor 406 is reversely rotated, the moving plate 302 moves upwards along the side wall of the threaded rod 301 and moves to the annular groove 306 by arranging the limiting mechanism 7, the upper side wall of the sliding block 703 is abutted against the lower side wall of the moving plate 302, when the lowering operation is needed, the moving plate 302 cannot move downwards due to the limitation of the sliding block 703, the situation that the extension mechanism 4 is retracted and reset in the lowering process of the lifting platform body 1 is avoided, the use of the lifting platform is safer, and the scissor rod 102 is folded in place, that is, when the lifting platform body 1 descends to the lowest, the connecting rod 5 abuts against the third sliding surface 702, so that the supporting block 701 drives the slider 703 to move rightwards along the fixing rod 1502, at this time, the moving plate 302 does not abut against the second sliding surface 704 any more, and moves downwards along with the reverse rotation of the threaded rod 301, so that the extending mechanism 4 is folded and reset, and the use process of the lifting platform body is safer, more reliable and more convenient.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (5)
1. Fork lift platform is cut to electronic, its characterized in that: comprises a lifting platform body (1), a supporting mechanism (2), a rotating mechanism (3), an extending mechanism (4), a connecting rod (5), a fixing sleeve (6), a limiting mechanism (7), a fixing mechanism (8), a connecting mechanism (9), a threaded sleeve (10), a universal joint (11) and a lead screw (12), wherein the lifting platform body (1) comprises a bearing platform (101), a scissor rod (102) and a bottom plate (103), the side wall of the bottom plate (103) is provided with a plurality of arrays of supporting mechanisms (2), the side wall of the bottom plate (103) is provided with the extending mechanism (4) for unfolding the supporting mechanism (2) and the rotating mechanism (3) for rotating the supporting mechanism (2), the side wall of the bottom plate (103) is provided with the limiting mechanism (7) for avoiding the supporting mechanism (2) to reset, the side wall of the extending mechanism (4) is provided with the fixing mechanism (8), the side wall of the scissor rod (102) is fixedly connected with a connecting rod (5), the side wall of the connecting rod (5) is fixedly sleeved with a fixing sleeve (6), the lower side wall of the fixing sleeve (6) is fixedly connected with a screw rod (12), the side wall of the screw rod (12) is in threaded connection with a threaded sleeve (10), the lower end of the threaded sleeve (10) is fixedly connected with a universal joint (11), and a connecting mechanism (9) is arranged between the universal joint (11) and the extension mechanism (4);
the supporting mechanism (2) comprises a notch (201) formed in the side wall of the bottom plate (103), the side wall of the notch (201) is fixedly connected with two symmetrically-arranged fixing blocks (202), the opposite side walls of the two fixing blocks (202) are rotatably connected with a lantern ring (203) through a rotating shaft, supporting legs (204) are inserted into the side wall of the lantern ring (203), each supporting leg (204) comprises a supporting surface (205) which is obliquely arranged, and a plurality of fixing strips which are arranged in an array are arranged on the side wall of the supporting surface (205);
the stretching mechanism (4) comprises a supporting plate (407) which is fixed on the bottom plate (103) and is arranged in a U shape, the upper side wall of the supporting plate (407) is fixedly connected with a motor (406), the output end of the motor (406) penetrates through the side wall of the bottom plate (103) and is fixedly connected with a driving gear (408), the side wall of the bottom plate (103) is rotationally connected with a driven gear (410) through a transmission shaft (409), the driven gear (410) is meshed with the driving gear (408), the other end of the transmission shaft (409) is connected with a rotating disc (401) through a fixing mechanism (8), the side wall of the rotating disc (401) is rotatably connected with a rotating rod (402) through a connecting pin (403), and the other end of the rotating rod (402) is rotatably connected with the side wall of the supporting leg (204), the side wall of the rotating disc (401) is fixedly connected with a limiting block (411), and the upper side wall of the bottom plate (103) is fixedly connected with a first limiting plate (404) and a second limiting plate (405);
the rotating mechanism (3) comprises a threaded rod (301) fixedly sleeved at the output end of a motor (406), an annular groove (306) is formed in the top end of the side wall of the threaded rod (301), a moving plate (302) is connected to the side wall of the threaded rod (301) in a threaded manner, a U-shaped plate (305) is fixedly connected to the upper side wall of the bottom plate (103), a sliding rod (304) is slidably connected to the side wall of the U-shaped plate (305), the other end of the sliding rod (304) is fixed to the side wall of the moving plate (302), a supporting column (303) is fixedly connected to the side wall of the moving plate (302), and the supporting column (303) is located below the;
the fixing mechanism (8) comprises a sleeve (802) fixedly sleeved on the side wall of the transmission shaft (409), the side wall of the sleeve (802) is provided with a plurality of strip-shaped openings (801) arranged in an array, the side wall of the rotating disc (401) is fixedly connected with a first telescopic mechanism (13), the side wall of the first telescopic mechanism (13) is connected with a T-shaped clamping block (803), the T-shaped clamping block (803) abuts against the side wall of the strip-shaped opening (801), and the side wall of the T-shaped clamping block (803) is provided with a chamfer (804);
the connecting mechanism (9) comprises a first spline groove (905) formed in the side wall of the transmission shaft (409), the side wall of the first spline groove (905) is connected with an inserting key (904) in a sliding mode, a sharp corner (908) is arranged on the side wall of the inserting key (904), a connecting sleeve (901) is inserted into the side wall of the transmission shaft (409), the inserting key (904) is fixed with the side wall of the connecting sleeve (901), the side wall of the bottom plate (103) is fixedly connected with a U-shaped mounting frame (909), the side wall of the mounting frame (909) is rotatably connected with a connecting shaft (906), the upper end of the connecting shaft (906) is fixed with the universal joint (11), the side wall of the connecting shaft (906) is provided with a second spline groove (907), the second spline grooves (907) correspond to the first spline grooves (905) in a one-to-one mode, the side wall of the transmission shaft (409) is sleeved with a first spring (910), and two ends of the first spring (910) are respectively fixedly connected with, the lateral wall fixedly connected with second telescopic machanism (14) of rolling disc (401), the lateral wall of second telescopic machanism (14) is connected with L shape slide (902), and the horizontal end of L shape slide (902) is provided with the electro-magnet, L shape slide (902) include two symmetries and slope first glide plane (903) that set up, and adapter sleeve (901) slide on first glide plane (903).
2. An electric scissor lift platform according to claim 1 wherein: first telescopic machanism (13) are including first connecting plate (1301) of two symmetry settings of fixed connection on rolling disc (401) lateral wall, two the relative lateral wall fixedly connected with first guide arm (1302) of first connecting plate (1301), T shape fixture block (803) cover is established on the lateral wall of first guide arm (1302), and the lateral wall of first connecting plate (1301) is run through to the one end of T shape fixture block (803), the lateral wall cover of first guide arm (1302) is equipped with second spring (1303), and the both ends of second spring (1303) respectively with T shape fixture block (803) and the lateral wall counterbalance of first connecting plate (1301).
3. An electric scissor lift platform according to claim 1 wherein: the second telescopic mechanism (14) comprises two symmetrically-arranged second connecting plates (1401) fixedly connected to the side walls of the rotating disc (401), the two opposite side walls of the second connecting plates (1401) are fixedly connected with second guide rods (1402), the L-shaped sliding plates (902) slide on the side walls of the second guide rods (1402), third springs (1403) are sleeved on the side walls of the second guide rods (1402), and two ends of each third spring (1403) are abutted to the side walls of the L-shaped sliding plates (902) and the side walls of the second connecting plates (1401) respectively.
4. An electric scissor lift platform according to claim 1 wherein: the limiting mechanism (7) comprises a third telescopic mechanism (15) fixedly connected to the side wall of the bottom plate (103), the side wall of the third telescopic mechanism (15) is connected with a sliding block (703), the sliding block (703) comprises a second sliding surface (704) which is obliquely arranged, the moving plate (302) slides on the second sliding surface (704), the upper side wall of the sliding block (703) is fixedly connected with a supporting block (701), and the supporting block (701) comprises a third sliding surface (702) which is obliquely arranged.
5. An electric scissor lift platform according to claim 4 wherein: third telescopic machanism (15) are including fixed plate (1501) that two symmetries of fixed connection on bottom plate (103) lateral wall set up, two dead lever (1502) that two symmetries of the relative lateral wall fixedly connected with of fixed plate (1501) set up, slider (703) cover is established on the lateral wall of dead lever (1502), the lateral wall cover of dead lever (1502) is equipped with fourth spring (1503), and the both ends of fourth spring (1503) offset with the lateral wall of fixed plate (1501) and slider (703) respectively.
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| CN202011409363.2A CN112429681B (en) | 2020-12-06 | 2020-12-06 | Electric scissor type lifting platform |
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| CN202011409363.2A CN112429681B (en) | 2020-12-06 | 2020-12-06 | Electric scissor type lifting platform |
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| CN112429681B CN112429681B (en) | 2022-01-04 |
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| CN113833282A (en) * | 2021-10-12 | 2021-12-24 | 上海建工四建集团有限公司 | Large-inclined-plane curtain wall plate mounting device and method |
| CN116268892A (en) * | 2023-03-28 | 2023-06-23 | 安徽师范大学 | Electronic drawing model display device |
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