Construction hoist

Abstract

The application discloses a construction use lifting elevator, relates to the technical field of building construction, and comprises a walking chassis, support blocks are fixedly installed on the top left and right sides of the walking chassis, support chassis are fixedly installed on the top of the support blocks, and unfolding support mechanisms are arranged on the support chassis. The unfolding support mechanisms are installed on the support chassis, the lifting support mechanisms are installed on the unfolding support mechanisms, the support arms are automatically unfolded, the second transmission gears are engaged with the third transmission gears after the support arms are unfolded, the lifting support legs are driven to stretch out of the support arms, the operation personnel manually take out each support arm of the support mechanism from the base in the traditional support mechanism, then the support legs are stretched out through hand cranking, and therefore, the time and energy of the operation personnel are greatly saved.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a construction elevator. Background Technology

[0002] A hoist is a lifting machine that vertically transports people or goods. A large number of hoists are used in construction. Chinese Patent Application No. 202111098456.2 discloses "a shaft-type construction elevator, comprising an elevator cage, track wheel assemblies located at the four corners of the elevator cage, a track mechanism installed on the inner side of the corners of the hoist frame, and a lifting mechanism connecting the elevator cage and the top of the hoist frame." This invention utilizes the existing shaft of the building to construct the construction elevator, reducing installation and dismantling costs. Furthermore, the shaft-type construction elevator of this invention can be installed according to the size of the shaft, allowing for the transport of goods or personnel only. This reduces the pressure on construction elevators on the building facade, lowers construction elevator costs, accelerates construction progress, and solves problems such as the operating costs and transportation pressure of existing construction elevators.

[0003] This prior art document only addresses the issue of high overall installation, dismantling, and operating costs of elevators. Currently, there are many types of elevators used in construction, among which mobile elevators used in low-rise building construction are quite common. However, to ensure their mobility, these construction elevators often need to be fixed by a support mechanism. But current support mechanisms often require workers to manually pull each support arm out of the base and then manually crank to extend the support legs to achieve the effect of fixing and supporting the whole. In addition, the manual cranking method is limited by manpower, which means that the support legs cannot press firmly against the loose ground of the construction site, causing the elevator to be not perpendicular to the horizontal plane. This not only easily increases the wear and tear on the moving parts of the elevator, but also easily causes the elevator to tip over, resulting in serious production accidents. Summary of the Invention

[0004] The purpose of this invention is to provide a construction elevator to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a construction elevator, comprising a traveling chassis, wherein support blocks are fixedly installed on the top left and right sides of the traveling chassis, and a support chassis is fixedly installed on the top of the support blocks;

[0006] The unfolding support mechanism includes mounting plates and support threaded rods. There are two mounting plates, which are fixedly installed on both equidistant sides at the bottom center of the support chassis. There are two support threaded rods, and the two ends of the two support threaded rods are respectively movably installed at the bottom center of the two mounting plates and at the center of the support block near the mounting plate.

[0007] A lifting support mechanism includes a support output bevel gear. A shaft hole is provided in the middle of the support threaded rod, and a drive shaft is slidably installed in the shaft hole. There are two support output bevel gears, which are respectively fixedly installed in the middle of the two ends of the drive shaft.

[0008] A support drive mechanism, the support drive mechanism including a drive motor, the drive motor being fixedly installed at the top center of the walking chassis;

[0009] The lifting mechanism includes two lifting slides, which are respectively fixedly installed on the left and right sides of the top of the support chassis.

[0010] Preferably, the unfolding support mechanism includes an unfolding slider, an unfolding arm, a fixed shaft, and a support arm. There are two unfolding sliders, each with a threaded hole in the middle of its bottom end. Both ends of the support threaded rod are threaded into the threaded hole. One end of the unfolding arm is movably mounted on the bottom end of the unfolding slider via a rotating shaft. There are four fixed shafts, which are fixedly mounted on the front and rear sides of both ends of the support threaded rod with bolts. There are four support arms, with one end near the support threaded rod movably sleeved on the fixed shaft. The other end of the unfolding arm is movably mounted on the bottom end of the support arm via a rotating shaft.

[0011] Preferably, the lifting support mechanism includes a support transmission bevel gear, a first transmission gear, a second transmission gear, a transmission chain, a third transmission gear, and a fourth transmission gear. There are two support transmission bevel gears, which are respectively meshed and installed on the top of the support output bevel gear. The first transmission gear is welded to the top of the support transmission bevel gear. There are two second transmission gears, which are respectively movably installed on the front and rear sides of the top of the support block through bearings. The top of each of the two second transmission gears is welded with a connecting gear. The transmission chain is meshed and sleeved on the first transmission gear and the connecting gear. The third transmission gear is movably installed in the middle of the support arm near the second transmission gear through a rotating shaft. The fourth transmission gear is movably installed in the middle of the support arm near the fixed shaft inside the support arm through a rotating shaft.

[0012] Preferably, the lifting support mechanism includes a first transmission belt, a locking female wheel, a sliding locking block, a return spring, a threaded sleeve, and a lifting support leg. The end of the first transmission belt near the fixed shaft is movably sleeved on the outside of the fourth transmission gear. The bottom end of the support arm away from the fixed shaft has a telescopic hole. The top of the locking female wheel has an integrally formed belt groove. The other end of the first transmission belt is movably sleeved on the outside of the belt groove. There are two sliding locking blocks, which are inserted and slidably installed at the bottom of the locking female wheel. A slot is opened between the bottom ends of the two sliding locking blocks. There are two return springs, which are respectively fixedly installed at the bottom ends of the two sliding locking blocks by bolts. The bottom end of the threaded sleeve is movably installed in the telescopic hole inside the support arm through a bearing. The top end of the threaded sleeve has a locking groove, and the top end of the threaded sleeve is inserted into the slot. The lifting support leg is threadedly installed inside the threaded sleeve.

[0013] Preferably, the lifting support mechanism includes a support plate, a support drive wheel, a second transmission belt, and a drive rod. Two support plates are bolted to the top center of the chassis and positioned between the two mounting plates. The support drive wheel is movably mounted on the top center of the two support plates via bearings. The output shaft of the drive motor is movably mounted on the bottom of the two support plates via bearings. The second transmission belt is movably sleeved around the support drive wheel and the output shaft of the drive motor. The drive rod is welded to both sides of the second transmission belt, and protrusions are welded onto the drive rod. Both ends of the drive rod are fixedly mounted within two drive shafts by welding.

[0014] Preferably, the support drive mechanism includes a sliding engagement wheel, a fixed engagement wheel, rings, and a spreading arm. There are two sliding engagement wheels, each slidably engaged and mounted on the outside of the drive rod. There are two fixed engagement wheels, both located between two mounting plates. The two fixed engagement wheels are respectively welded and fixedly mounted on the end of the support threaded rod near the support drive wheel. The drive rod is inserted and mounted inside the fixed engagement wheel. The sliding engagement wheel and the fixed engagement wheel are engaged and connected. There are two rings, each movably sleeved on the end of the two sliding engagement wheels near the support threaded rod. There are two spreading arms, each welded onto one of the two rings.

[0015] Preferably, the support drive mechanism includes an opening groove, an opening slider, a connecting arm, a push rod, and a cylinder. The two opening arms are hinged together by a pivot. The opening groove is located at the end of the opening arm away from the supporting threaded rod. There are two opening sliders, which are respectively engaged and slidably installed in the opening groove. The two ends of the connecting arm are movably installed between the two opening sliders by a pivot. The push rod is fixedly installed in the middle of the side of the connecting arm away from the supporting threaded rod by bolts. A vertical plate is fixedly installed at the top of the walking chassis by bolts. The cylinder is fixedly installed at the top middle of the vertical plate on the side away from the connecting arm by bolts. The cylinder contains a telescopic rod. The push rod is inserted into the vertical plate and fixedly installed on the telescopic rod of the cylinder by bolts.

[0016] Preferably, the lifting mechanism includes a support frame, a first transmission rod, a lifting output bevel gear, a lifting transmission bevel gear, a lifting threaded rod, and a lifting slide rod. The support frame is fixedly installed on the top of the support chassis by bolts. Several triangular blocks are fixedly installed on the top center of the support chassis by bolts. The first transmission rod is movably installed on the top of the triangular blocks by bearings. There are two lifting output bevel gears, which are welded to both ends of the first transmission rod. There are two lifting transmission bevel gears, which are movably installed on the left and right sides of the top of the support chassis by bearings. The lifting transmission bevel gear is located below the lifting output bevel gear and meshes with it. There are two lifting threaded rods, and the bottom ends of the two lifting threaded rods are fixedly installed on the top center of the lifting transmission bevel gear by welding. There are four lifting slide rods, which are fixedly installed at the four corners of the top of the support chassis by welding.

[0017] Preferably, the lifting mechanism includes a lifting platform, a second transmission rod, a third transmission belt, a third transmission rod, a fourth transmission belt, and a fourth transmission rod. The left and right ends of the lifting platform are threaded onto two lifting threaded rods, and the four corners of the lifting platform are slidably fitted onto four lifting slide rods. The two ends of the second transmission rod are movably mounted on the side of two support blocks near the drive motor via bearings. The third transmission belt is movably fitted onto the output shaft of the drive motor and the second transmission rod. The two ends of the third transmission rod are movably mounted between two mounting plates via rotating shafts. A connecting belt is movably fitted onto the third transmission rod and the first transmission rod. The fourth transmission belt is movably fitted onto the second and third transmission rods. The fourth transmission rod is movably mounted on the top of a triangular block on the side of the support frame away from the first transmission rod via bearings.

[0018] Preferably, the lifting mechanism includes a fifth transmission belt, a fifth transmission gear, a sixth transmission gear, a pedal, and a platform revolving door. The fifth transmission belt is movably sleeved on the outside of the first and fourth transmission rods. There are two fifth transmission gears, which are welded to both ends of the fourth transmission rod. There are two sixth transmission gears, which are movably mounted on the bottom ends of two lifting slides near the fourth transmission rod via bearings. The pedal is fixedly mounted between the two sixth transmission gears by bolts. A guardrail is fixedly mounted in the middle of the top of the lifting platform by bolts, and an entrance is opened on the side near the pedal. The platform revolving door is movably mounted in the entrance via a rotating shaft.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention designs and installs an unfolding support mechanism and a lifting support mechanism. By rotating the support threaded rod, the unfolding slider unfolds the support arm from between the walking chassis and the support chassis, allowing the support arm to unfold automatically. After the support arm unfolds, the second transmission gear and the third transmission gear mesh, thereby driving the lifting support leg to extend from the support arm. This avoids the need for operators to manually pull each support arm out of the base and then manually crank to extend the support leg, which is a traditional support mechanism. This greatly saves the time and effort of the operators.

[0021] 2. This invention designs and installs a support drive mechanism and a lifting mechanism. The sliding engagement wheel and fixed engagement wheel engage to rotate the support threaded rod, and the drive rod provides power to the engagement mother wheel. When the lifting support leg extends and contacts the ground, the descent stops. The sliding engagement block slides out within the engagement mother wheel, preventing the lifting support leg from extending further. This allows the lifting support leg to extend from the support arm according to the actual ground conditions, keeping the elevator's traveling chassis and support chassis level. This prevents the elevator from tipping over, reduces wear, and improves safety. Furthermore, the lifting platform rotates the steps upwards during ascent and downwards during descent, enhancing the elevator's versatility. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure provided in an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the unfolding support mechanism provided in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the lifting support mechanism provided in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the unfolding of the sliding locking block provided in an embodiment of the present invention;

[0027] Figure 6 A schematic diagram of the support drive mechanism provided in an embodiment of the present invention;

[0028] Figure 7 This is a partial schematic diagram of the lifting mechanism provided in an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the internal structure of the lifting mechanism provided in an embodiment of the present invention.

[0030] In the diagram: 1. Walking chassis; 2. Support chassis; 3. Deployment support mechanism; 301. Mounting plate; 302. Support threaded rod; 303. Deployment slider; 304. Deployment arm; 305. Fixed shaft; 306. Support arm; 4. Lifting support mechanism; 401. Support output bevel gear; 402. Support transmission bevel gear; 403. First transmission gear; 404. Second transmission gear; 405. Transmission chain; 406. Third transmission gear; 407. Fourth transmission gear; 408. First transmission belt; 409. Engaging female wheel; 410. Sliding engaging block; 411. Return spring; 412. Threaded sleeve; 413. Lifting support leg; 5. Support drive mechanism; 501. Drive motor; 502. Support plate; 503. Support drive wheel; 504. Second transmission belt; 5 5. Drive rod; 506. Sliding engagement wheel; 507. Fixed engagement wheel; 508. Ring; 509. Spreading arm; 510. Spreading slide rail; 511. Spreading slider; 512. Connecting arm; 513. Push rod; 514. Cylinder; 6. Lifting mechanism; 601. Lifting slide rail; 602. Support frame; 603. First transmission rod; 604. Lifting output bevel gear; 605. Lifting transmission bevel gear; 606. Lifting threaded rod; 607. Lifting slide bar; 608. Lifting platform; 609. Second transmission rod; 610. Third transmission belt; 611. Third transmission rod; 612. Fourth transmission belt; 613. Fourth transmission rod; 614. Fifth transmission belt; 615. Fifth transmission gear; 616. Sixth transmission gear; 617. Pedal; 618. Platform revolving door. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-8The present invention provides a technical solution: a construction elevator, which includes a traveling chassis 1, with support blocks fixedly installed on the top left and right sides of the traveling chassis 1, and a support chassis 2 fixedly installed on the top of the support blocks.

[0033] The support mechanism 3 is deployed. The support mechanism 3 includes a mounting plate 301 and a support threaded rod 302. There are two mounting plates 301, which are fixedly installed on the two equidistant sides of the bottom middle of the support chassis 2. There are two support threaded rods 302, and the two ends of the two support threaded rods 302 are respectively movably installed in the middle of the bottom middle of the two mounting plates 301 and the middle of the support block on the side close to the mounting plate 301.

[0034] The lifting support mechanism 4 includes a support output bevel gear 401, a support threaded rod 302 with a shaft hole in the middle, and a drive shaft is slidably installed in the shaft hole. There are two support output bevel gears 401, which are respectively fixedly installed at the middle of the two ends of the drive shaft.

[0035] The support drive mechanism 5 includes a drive motor 501, which is fixedly installed at the top center of the walking chassis 1.

[0036] The lifting mechanism 6 includes two lifting slides 601, which are fixedly installed on the left and right sides of the top of the supporting chassis 2, respectively.

[0037] The unfolding support mechanism 3 includes an unfolding slider 303, an unfolding arm 304, a fixed shaft 305, and a support arm 306. There are two unfolding sliders 303, each with a threaded hole at its bottom center. Both ends of the support threaded rod 302 are threaded into the threaded hole. One end of the unfolding arm 304 is movably mounted on the bottom of the unfolding slider 303 via a rotating shaft. There are four fixed shafts 305, which are bolted to the front and rear sides of both ends of the support threaded rod 302. There are four support arms 306, with one end near the support threaded rod 302 movably sleeved on the outside of the fixed shaft 305. The other end of the unfolding arm 304 is movably mounted on the bottom of the support arm 306 via a rotating shaft. The unfolding slider 303 moves along the support threaded rod 302 towards the fixed shaft 305. When the unfolding slider 303 moves, the unfolding arm 304 pushes the support arm 306 to rotate around the fixed shaft 305, thus unfolding the support arm 306.

[0038] The lifting support mechanism 4 includes a support transmission bevel gear 402, a first transmission gear 403, a second transmission gear 404, a transmission chain 405, a third transmission gear 406, and a fourth transmission gear 407. There are two support transmission bevel gears 402, each meshing with the top of the support output bevel gear 401. The first transmission gear 403 is welded to the top of the support transmission bevel gear 402. There are two second transmission gears 404, each movably mounted on the front and rear sides of the top of the support block via bearings. Connecting gears are welded to the tops of both second transmission gears 404. The transmission chain 405 meshes with the first transmission gear 403 and the connecting gear. The third transmission gear 406... 6 is movably mounted on the middle of the support arm 306 near the second transmission gear 404 via a rotating shaft, and the fourth transmission gear 407 is movably mounted on the middle of the end of the support arm 306 near the fixed shaft 305 via a rotating shaft; the support output bevel gear 401 drives the support transmission bevel gear 402 to rotate, causing the first transmission gear 403 to rotate accordingly, and the first transmission gear 403 drives the transmission chain 405 to rotate, causing the connecting gear on the second transmission gear 404 to rotate, causing the second transmission gear 404 to rotate accordingly, and then the second transmission gear 404 drives the third transmission gear 406 to rotate, and then the third transmission gear 406 drives the fourth transmission gear 407 to rotate;

[0039] The lifting support mechanism 4 includes a first transmission belt 408, a locking female wheel 409, sliding locking blocks 410, a return spring 411, a threaded sleeve 412, and lifting support legs 413. One end of the first transmission belt 408 near the fixed shaft 305 is movably sleeved around the fourth transmission gear 407. A telescopic hole is provided at the bottom end of the support arm 306 away from the fixed shaft 305. The top of the locking female wheel 409 has an integrally formed belt groove, and the other end of the first transmission belt 408 is movably sleeved around the belt groove. Two sliding locking blocks 410 are inserted and slidably mounted at the bottom end of the locking female wheel 409. A slot is provided between the bottom ends of the two sliding locking blocks 410. Two return springs 411 are provided. The two sliding engagement blocks 410 are fixedly installed at their bottom ends by bolts. The bottom end of the threaded sleeve 412 is movably installed in the internal telescopic hole of the support arm 306 through a bearing. The top end of the threaded sleeve 412 has a slot and is inserted into the slot. The lifting support leg 413 is threadedly installed in the threaded sleeve 412. When the fourth transmission gear 407 rotates, the engagement mother wheel 409 rotates accordingly through the first transmission belt 408. Since the sliding engagement block 410 and the threaded sleeve 412 are engaged, the engagement mother wheel 409 and the sliding engagement block 410 rotate together, causing the threaded sleeve 412 to rotate, so that the lifting support leg 413 extends out from the support arm 306.

[0040] The lifting support mechanism 4 includes a support plate 502, a support drive wheel 503, a second transmission belt 504, and a drive rod 505. Two support plates 502 are bolted to the top center of the chassis 1, located between two mounting plates 301. The support drive wheel 503 is movably mounted on the top center of the two support plates 502 via bearings. The output shaft of the drive motor 501 is movably mounted on the bottom end of the two support plates 502 via bearings. The second transmission belt 504 is movably sleeved around the support drive wheel 503 and the output shaft of the drive motor 501. The drive rod 505 is welded to both sides of the second transmission belt 504, and protrusions are welded onto the drive rod 505. Both ends of the drive rod 505 are fixedly mounted inside two drive shafts by welding. The support drive wheel 503 is mounted on the support plate 502, and the second transmission belt 504 causes the drive motor 501 to rotate the support drive wheel 503, which in turn rotates the drive rod 505.

[0041] The support drive mechanism 5 includes two sliding engagement wheels 506, two fixed engagement wheels 507, two rings 508, and two spreading arms 509. Two sliding engagement wheels 506 are slidably engaged with the drive rod 505. Two fixed engagement wheels 507 are located between two mounting plates 301. The two fixed engagement wheels 507 are welded to one end of the support threaded rod 302 near the support drive wheel 503. The drive rod 505 is inserted into the fixed engagement wheels 507. The sliding engagement wheels 506 and fixed engagement wheels 507 are engaged. Two rings 508 are movably sleeved on one end of the two sliding engagement wheels 506 near the support threaded rod 302. Two spreading arms 509 are welded to the two rings 508. The drive rod 505 drives the drive shaft to rotate, causing the support output bevel gear 401 to rotate accordingly.

[0042] The support drive mechanism 5 includes a spreading groove 510, a spreading slider 511, a connecting arm 512, a push rod 513, and a cylinder 514. The two spreading arms 509 are hinged together by a pivot. The spreading groove 510 is located at the end of the spreading arm 509 away from the supporting threaded rod 302. There are two spreading sliders 511, which are respectively engaged and slidably installed in the spreading groove 510. The two ends of the connecting arm 512 are movably installed between the two spreading sliders 511 by a pivot. The push rod 513 is fixedly installed in the middle of the side of the connecting arm 512 away from the supporting threaded rod 302 by bolts. A vertical plate is fixedly installed at the top of the chassis 1 by bolts. The cylinder 514 is fixedly installed in the middle of the top of the vertical plate on the side away from the connecting arm 512 by bolts. The cylinder 514 contains a telescopic rod. The push rod 513 is inserted into the vertical plate and fixed to the telescopic rod of the cylinder 514 by bolts. By controlling the start cylinder 514, the push rod 513 drives the connecting arm 512 to retract towards the cylinder 514, which drives the sliding block 511 to slide in the opening groove 510. At this time, the two opening arms 509 approach the cylinder 514 and the end of the connecting ring 508 moves outward. The ring 508 moves the sliding engagement wheel 506 towards the fixed engagement wheel 507. Due to the protrusion on the drive rod 505, the sliding engagement wheel 506 rotates continuously with the drive rod 505 after the drive motor 501 starts. The sliding engagement wheel 506 engages with the fixed engagement wheel 507, which drives the support threaded rod 302 to rotate.

[0043] The lifting mechanism 6 includes a support frame 602, a first transmission rod 603, a lifting output bevel gear 604, a lifting transmission bevel gear 605, a lifting threaded rod 606, and a lifting slide rod 607. The support frame 602 is bolted to the top of the support chassis 2. Several triangular blocks are bolted to the center of the top of the support chassis 2. The first transmission rod 603 is movably mounted on the top of the triangular blocks via bearings. There are two lifting output bevel gears 604, which are welded to both ends of the first transmission rod 603. There are two lifting transmission bevel gears 605, which are movably mounted on the left and right sides of the top of the support chassis 2 via bearings. The lifting transmission bevel gear 605 is located below and meshes with the lifting output bevel gear 604. There are two lifting threaded rods 606, and the bottom ends of the two lifting threaded rods 606 are respectively welded and fixed to the top middle of the lifting transmission bevel gear 605. There are four lifting slide rods 607, which are respectively welded and fixed to the top four corners of the support chassis 2. The first transmission rod 603 drives the lifting output bevel gear 604 to rotate, which in turn drives the lifting transmission bevel gear 605 to rotate, and then the lifting transmission bevel gear 605 drives the lifting threaded rods 606 to rotate.

[0044] The lifting mechanism 6 includes a lifting platform 608, a second transmission rod 609, a third transmission belt 610, a third transmission rod 611, a fourth transmission belt 612, and a fourth transmission rod 613. The left and right ends of the lifting platform 608 are threaded onto two lifting threaded rods 606, respectively. The four corners of the lifting platform 608 are slidably fitted onto four lifting slide rods 607, respectively. The two ends of the second transmission rod 609 are movably mounted on the side of two support blocks near the drive motor 501 via bearings. The third transmission belt 610 is movably fitted onto the output shaft of the drive motor 501 and the second transmission rod 609. The two ends of the third transmission rod 611 are movably mounted between two mounting plates 301 via rotating shafts. The third transmission rod 611 is movably sleeved with the first transmission rod 603 by a connecting belt. The fourth transmission belt 612 is movably sleeved with the second transmission rod 609 and the third transmission rod 611. The fourth transmission rod 613 is movably mounted on the top of the triangular block on the side of the support frame 602 away from the first transmission rod 603 by a bearing. By limiting the lifting slide rod 607, when the lifting threaded rod 606 rotates, it drives the lifting platform 608 to move up and down. When the drive motor 501 starts, it drives the second transmission rod 609 to rotate through the third transmission belt 610, then drives the third transmission rod 611 to rotate through the fourth transmission belt 612, and then drives the first transmission rod 603 to rotate through the connecting belt.

[0045] The lifting mechanism 6 includes a fifth transmission belt 614, a fifth transmission gear 615, a sixth transmission gear 616, a pedal 617, and a platform revolving door 618. The fifth transmission belt 614 is movably sleeved on the outside of the first transmission rod 603 and the fourth transmission rod 613. There are two fifth transmission gears 615, which are welded to both ends of the fourth transmission rod 613. There are two sixth transmission gears 616, which are movably mounted on the bottom end of the two lifting slides 601 near the fourth transmission rod 613 via bearings. The pedal 617 is fixedly mounted between the two sixth transmission gears 616 by bolts. A guardrail is fixedly mounted in the middle of the top of the lifting platform 608 by bolts, and an entrance is opened on the side near the pedal 617. The platform revolving door 618 is movably mounted in the entrance via a rotating shaft. The fifth transmission belt 614 causes the fourth transmission rod 613 to rotate with the first transmission rod 603. At this time, the fifth transmission gear 615 rotates simultaneously with the fourth transmission rod 613. The sixth transmission gear 616 rotates slowly, causing the pedal 617 to rotate slowly with the sixth transmission gear 616.

[0046] Working Principle: In use, the construction elevator is first moved to the designated position, then its fixed support is established. The drive motor 501 is started, driving the support drive wheel 503 to rotate via the second transmission belt 504. This causes the drive rod 505 to rotate simultaneously with the support drive wheel 503. Then, the cylinder 514 is controlled to retract the push rod 513, moving the connecting arm 512 away from the support drive wheel 503. At this time, the opening slider 511 moves along with the connecting arm 512, sliding within the opening groove 510. Simultaneously, the opening arm 509, under the movement of the opening slider 511, retracts at the end closest to the cylinder 514. 9. The end near the support drive wheel 503 drives the ring 508 to move away from the support drive wheel 503. The ring 508 drives the sliding engagement wheel 506 to move on the drive rod 505. The protrusion on the drive rod 505 causes the sliding engagement wheel 506 to rotate with the drive rod 505. When the sliding engagement wheel 506 moves into the fixed engagement wheel 507, the fixed engagement wheel 507 rotates with the sliding engagement wheel 506 through the engagement action. The fixed engagement wheel 507 drives the support threaded rod 302 to rotate, causing the unfolding slider 303 to move away from the mounting plate 301 on the support threaded rod 302. When the unfolding slider 303 moves, the unfolding arm 304 pushes the support arm 306 to fix the shaft 305. The shaft rotates to unfold the support arm 306. Once fully unfolded, the third transmission gear 406 moves with the support arm 306 to the position of the second transmission gear 404, causing them to mesh. This meshes with the third transmission gear 406, driving the drive shaft to rotate via the drive rod 505. The drive shaft then drives the support output bevel gear 401 to rotate, which in turn drives the support transmission bevel gear 402. This causes the first transmission gear 403 to rotate, which in turn drives the transmission chain 405 to rotate, causing the connecting gear on the second transmission gear 404 to rotate. This causes the second transmission gear 404 to rotate, and then the second transmission gear 404 drives the third transmission gear... Gear 406 rotates, which in turn drives the fourth transmission gear 407 to rotate via the third transmission gear 406. The first transmission belt 408 causes the engagement wheel 409 to rotate as the fourth transmission gear 407 rotates. Because the sliding engagement block 410 engages with the threaded sleeve 412, the rotation of the engagement wheel 409, along with the sliding engagement block 410, drives the threaded sleeve 412 to rotate, causing the lifting support leg 413 to extend from the support arm 306. When the bottom end of the lifting support leg 413 contacts the support surface, it can no longer descend, preventing the connecting arm 512 from rotating. This causes the sliding engagement block 410 to slide out of the engagement wheel 409, disconnecting the power to the threaded sleeve 412.This ensures that the threaded sleeve 412 remains stationary while the engaging nut 409 continues to rotate, and the return spring 411 is in a stretched state. When the lifting support leg 413 needs to retract, the elastic force of the return spring 411 retracts the sliding engaging block 410 into the engaging nut 409, causing the engaging nut 409 to drive the threaded sleeve 412 to rotate, thereby retracting the lifting support leg 413. The power output from the drive motor 501 drives the second transmission rod 609 to rotate via the third transmission belt 610, drives the third transmission rod 611 to rotate via the fourth transmission belt 612, and then drives the first transmission rod 603 to rotate via the connecting belt. When the first transmission rod 603 rotates, it drives the lifting output bevel gear 604 to rotate, and then drives the lifting output bevel gear 604 to rotate via the connecting belt. The output bevel gear 604 drives the lifting transmission bevel gear 605 to rotate, causing the lifting threaded rod 606 to rotate along with it. Limiting the movement of the lifting slide rod 607, the rotation of the lifting threaded rod 606 drives the lifting platform 608 to move up and down. The fifth transmission belt 614 causes the fourth transmission rod 613 to rotate along with the first transmission rod 603. At this time, the fifth transmission gear 615 rotates simultaneously with the fourth transmission rod 613. Meanwhile, the sixth transmission gear 616 rotates slowly, causing the pedal 617 to rotate slowly along with it. Therefore, when the lifting platform 608 descends, the pedal 617 rotates downwards; when the lifting platform 608 rises, the pedal 617 rotates upwards.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction elevator, comprising a traveling chassis (1), wherein support blocks are fixedly installed on the left and right sides of the top of the traveling chassis (1), and a support chassis (2) is fixedly installed on the top of the support blocks, characterized in that: The unfolding support mechanism (3) includes a mounting plate (301) and a support threaded rod (302). There are two mounting plates (301) and they are fixedly installed on the two equidistant sides of the bottom middle of the support chassis (2). There are two support threaded rods (302), and the two ends of the two support threaded rods (302) are respectively movably installed in the middle of the bottom middle of the two mounting plates (301) and the middle of the side of the support block near the mounting plate (301). The unfolding support mechanism (3) includes an unfolding slider (303), an unfolding arm (304), a fixed shaft (305), and a support arm (306). There are two unfolding sliders (303) with a threaded hole in the middle of the bottom end. The two ends of the support threaded rod (302) are threaded and connected in the threaded hole. One end of the unfolding arm (304) is movably installed at the bottom end of the unfolding slider (303) through a rotating shaft. There are four fixed shafts (305) and they are fixedly installed at the front and rear sides of both ends of the support threaded rod (302) by bolts. There are four support arms (306) and one end close to the support threaded rod (302) is movably sleeved outside the fixed shaft (305). The other end of the unfolding arm (304) is movably installed at the bottom end of the support arm (306) through a rotating shaft. The lifting support mechanism (4) includes a support output bevel gear (401). The support threaded rod (302) has a shaft hole in the middle, and a drive shaft is inserted and slidably installed in the shaft hole. There are two support output bevel gears (401), which are respectively fixedly installed in the middle of the two ends of the drive shaft. The lifting support mechanism (4) includes a support transmission bevel gear (402), a first transmission gear (403), a second transmission gear (404), a transmission chain (405), a third transmission gear (406), and a fourth transmission gear (407). There are two support transmission bevel gears (402), which are respectively meshed and installed on the top of the support output bevel gear (401). The first transmission gear (403) is welded to the top of the support transmission bevel gear (402). There are two second transmission gears (404), which are respectively movably installed on the front and rear sides of the top of the support block through bearings. The top of each of the two second transmission gears (404) is welded with a connecting gear. The transmission chain (405) meshes and is sleeved on the first transmission gear (403) and the connecting gear. The third transmission gear (406) is movably installed on the middle of the side of the support arm (306) near the second transmission gear (404) through a rotating shaft. The fourth transmission gear (407) is movably installed on the middle of the end of the support arm (306) near the fixed shaft (305) through a rotating shaft. The lifting support mechanism (4) includes a first transmission belt (408), a locking female wheel (409), a sliding locking block (410), a return spring (411), a threaded sleeve (412), and a lifting support leg (413). One end of the first transmission belt (408) near the fixed shaft (305) is movably sleeved on the outside of the fourth transmission gear (407). The bottom end of the support arm (306) away from the fixed shaft (305) has a telescopic hole. The top of the locking female wheel (409) has an integrally formed belt groove. The other end of the first transmission belt (408) is movably sleeved on the outside of the belt groove. The sliding locking block... There are two sliding engagement blocks (410) inserted and slidably installed at the bottom end of the engagement nut (409). A slot is provided in the middle of the bottom end of the two sliding engagement blocks (410). There are two return springs (411) respectively fixedly installed at the bottom end of the two sliding engagement blocks (410) by bolts. The bottom end of the threaded sleeve (412) is movably installed in the internal telescopic hole of the support arm (306) through the bearing. A slot is provided at the top end of the threaded sleeve (412). The top end of the threaded sleeve (412) is inserted and installed in the slot. The lifting support leg (413) is threadedly installed in the threaded sleeve (412). The support drive mechanism (5) includes a drive motor (501), which is fixedly installed at the top center of the walking chassis (1). The support drive mechanism (5) includes a sliding engagement wheel (506), a fixed engagement wheel (507), a ring (508), and a spreading arm (509). There are two sliding engagement wheels (506), which are slidably engaged and installed outside the drive rod (505). There are two fixed engagement wheels (507), which are located between two mounting plates (301). The two fixed engagement wheels (507) are respectively fixedly installed on the end of the support threaded rod (302) near the support drive wheel (503) by welding. The drive rod (505) is inserted into the fixed engagement wheel (507). The sliding engagement wheel (506) and the fixed engagement wheel (507) are engaged and connected. There are two rings (508), which are movably sleeved on the ends of the two sliding engagement wheels (506) near the support threaded rod (302). There are two spreading arms (509), which are respectively welded to the two rings (508). The lifting mechanism (6) includes a lifting slide (601), which has two slides and is fixedly installed on the left and right sides of the top of the support chassis (2).

2. The construction elevator according to claim 1, characterized in that: The lifting support mechanism (4) includes a support plate (502), a support drive wheel (503), a second transmission belt (504), and a drive rod (505). There are two support plates (502), both of which are fixedly installed at the top center of the walking chassis (1) by bolts and located between two mounting plates (301). The support drive wheel (503) is movably installed at the top center of the two support plates (502) by bearings. The output shaft of the drive motor (501) is movably installed at the bottom end of the two support plates (502) by bearing insertion. The second transmission belt (504) is movably sleeved outside the support drive wheel (503) and the output shaft of the drive motor (501). The drive rod (505) is welded to both sides of the second transmission belt (504). The drive rod (505) has protrusions welded on it. The two ends of the drive rod (505) are fixedly installed in the two drive shafts by welding.

3. A construction elevator according to claim 1, characterized in that: The support drive mechanism (5) includes a spreading groove (510), a spreading slider (511), a connecting arm (512), a push rod (513), and a cylinder (514). The two spreading arms (509) are hinged together by a pivot. The spreading groove (510) is located at the end of the spreading arm (509) away from the support threaded rod (302). There are two spreading sliders (511), which are respectively engaged and slidably installed in the spreading groove (510). The two ends of the connecting arm (512) are movably installed on both sides by a pivot. Between the sliding blocks (511), the push rod (513) is fixedly installed by bolts on the middle of the side of the connecting arm (512) away from the supporting threaded rod (302). The top of the walking chassis (1) is fixedly installed with a vertical plate by bolts. The cylinder (514) is fixedly installed by bolts on the middle of the top of the vertical plate on the side away from the connecting arm (512). The cylinder (514) contains a telescopic rod. The push rod (513) is inserted into the vertical plate and fixedly installed on the telescopic rod of the cylinder (514) by bolts.

4. A construction elevator according to claim 1, characterized in that: The lifting mechanism (6) includes a support frame (602), a first transmission rod (603), a lifting output bevel gear (604), a lifting transmission bevel gear (605), a lifting threaded rod (606), and a lifting slide rod (607). The support frame (602) is fixedly installed on the top of the support chassis (2) by bolts. Several triangular blocks are fixedly installed in the middle of the top of the support chassis (2) by bolts. The first transmission rod (603) is movably installed on the top of the triangular blocks by bearings. There are two lifting output bevel gears (604), which are respectively welded to the first transmission rod (603). At both ends, there are two lifting transmission bevel gears (605) and they are respectively movably installed on the left and right sides of the top of the support chassis (2) through bearings. The lifting transmission bevel gear (605) is located below the lifting output bevel gear (604) and meshes with the lifting output bevel gear (604). There are two lifting threaded rods (606) and the bottom ends of the two lifting threaded rods (606) are respectively fixedly installed in the middle of the top of the lifting transmission bevel gear (605) by welding. There are four lifting slide rods (607) and they are respectively fixedly installed at the four corners of the top of the support chassis (2) by welding.

5. A construction elevator according to claim 4, characterized in that: The lifting mechanism (6) includes a lifting platform (608), a second transmission rod (609), a third transmission belt (610), a third transmission rod (611), a fourth transmission belt (612), and a fourth transmission rod (613). The left and right ends of the lifting platform (608) are threaded onto two lifting threaded rods (606), and the four corners of the lifting platform (608) are slidably fitted onto four lifting slide rods (607). The two ends of the second transmission rod (609) are movably mounted on the side of two support blocks near the drive motor (501) via bearings. The third transmission rod (609) is threaded onto two support blocks near the drive motor (501). The moving belt (610) is movably sleeved on the output shaft of the drive motor (501) and the second transmission rod (609). The two ends of the third transmission rod (611) are movably mounted between two mounting plates (301) via rotating shafts. The third transmission rod (611) and the first transmission rod (603) are movably sleeved with a connecting belt. The fourth transmission belt (612) is movably sleeved on the second transmission rod (609) and the third transmission rod (611). The fourth transmission rod (613) is movably mounted on the top of the triangular block on the side of the support frame (602) away from the first transmission rod (603) via bearings.

6. A construction elevator according to claim 5, characterized in that: The lifting mechanism (6) includes a fifth transmission belt (614), a fifth transmission gear (615), a sixth transmission gear (616), a pedal (617), and a platform revolving door (618). The fifth transmission belt (614) is movably sleeved on the outside of the first transmission rod (603) and the fourth transmission rod (613). There are two fifth transmission gears (615), which are welded to both ends of the fourth transmission rod (613). There are two sixth transmission gears (616), which are movably installed on the bottom end of the two lifting slides (601) near the fourth transmission rod (613) by bearings. The pedal (617) is fixedly installed between the two sixth transmission gears (616) by bolts. A guardrail is fixedly installed in the middle of the top of the lifting platform (608) by bolts, and an entrance is opened on the side near the pedal (617). The platform revolving door (618) is movably installed in the entrance by a rotating shaft.

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