Safety elevator for building construction

Abstract

The invention provides a safety elevator for building construction. The elevator comprises two guide rail frames and a lifting cage, the lifting cage is driven by a driving mechanism and a traction rope to move up and down between the two guide rail frames, an assembling groove sliding in the outer walls of the two guide rail frames is formed in the outer portion of the lifting cage, and a plurality of limiting parts attached to the surface of the lifting cage are arranged on the inner wall of the assembling groove. A plurality of sets of limiting holes are evenly formed in the surface of the guide rail frame, an assembling frame is arranged at the bottom of the lifting cage, and an air bag is placed in an inner cavity of the assembling frame. The safety elevator for building construction is provided with the multi-stage safety protection mechanism, limiting can be conducted through the limiting mechanism in the rapid descending process, after the limiting mechanism loses efficacy, the descending resistance function can be increased for the suspension cage through air buffering and friction between an elastic substance and hard metal, the descending speed of the suspension cage is slowed down, and the safety of building construction is improved. And safety accidents caused by rapid falling of the elevator due to faults are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and specifically relates to a safety elevator for building construction. Background Technique

[0002] The safety elevator for building construction is a device used for vertical transportation of materials and personnel at the building construction site. It is mainly used at the construction sites of water conservancy projects such as dams, hydropower stations, and levees to transport equipment and materials to high or low places to facilitate the construction operations of workers. The working principle of the safety elevator for building construction is mainly based on the drive of the traction rope. When the electrical operating system issues an instruction, the motor starts and drives the reducer to rotate, and then the power is transmitted to the cage through the transmission shaft. The cage moves up and down under the guidance of the guide rail frame to achieve the vertical transportation of personnel and goods.

[0003] During the application of the elevator, when the traction rope of the elevator breaks, the elevator will quickly fall due to the lack of support force. At this time, components such as anti-falling safety devices, overload protection devices, and upper and lower limit switches that ensure the safe operation of the elevator will be automatically activated under normal conditions. However, it is still difficult for the above-mentioned safety components to block the elevator whose descending speed exceeds the conventional standard during use, and it is easy to cause the situation of the elevator falling. In order to improve the safety of the elevator after a sudden fall, this application proposes a safety elevator for building construction to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to make up for the deficiencies of the prior art, and a safety elevator for building construction is proposed. It can increase the descending resistance of the cage through air resistance in cooperation with elastic substances and hard metals, and can prevent the cage from descending rapidly when the traction rope of the elevator breaks and the support force is lacking, thereby avoiding safety problems, and can solve the problem that the elevator cannot be effectively paused after falling and is easy to crash.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: The safety elevator for building construction includes two guide rail frames and a cage slidably disposed between the two guide rail frames. An assembly box is provided at the top of the two guide rail frames. A driving mechanism is provided in the assembly box. The output shaft of the driving mechanism is connected to the cage through a traction rope, and the traction rope is controlled to retract and release through the driving mechanism to drive the cage to move up and down along the two guide rail frames; an assembly groove is opened on the outer part of the cage and slides on the outer walls of the two guide rail frames. A plurality of groups of limiting parts that fit the surface of the cage are provided on the inner wall of the assembly groove. A plurality of groups of limiting holes are evenly opened on the surface of the guide rail frame. An assembly frame is provided at the bottom of the cage. An airbag is placed in the inner cavity of the assembly frame. An inflation assembly connecting the limiting parts is provided at the top of the airbag. A vent hole penetrating the airbag is opened at the center of the bottom of the assembly frame. A drainage assembly is provided outside the vent hole of the assembly frame.

[0006] Further technical solution of the present invention: The top of the cage is arranged in an arc shape. When the arc-shaped top of the cage rises, the wind resistance can be effectively reduced. In this way, when the driving part drives the traction cage to rise, the traction power can be reduced, and finally the synchronous reduction of the driving energy can be achieved; A closing part is respectively arranged at the front and rear parts of the cage, and a movable pressure-bearing component is arranged at the bottom of the inner cavity of the cage; The closing part can be used to open and close the front and rear of the cage, and the pressure-bearing component is used for directly bearing the weight of goods or standing personnel inside the cage; The guide rail frame is composed of multiple interchangeable standard parts, and the structure of each standard part is exactly the same, and multiple limiting holes are opened on each standard part, which is convenient for the installation of the guide rail frame.

[0007] Further technical solution of the present invention: The limiting part includes a telescopic part fixed on the inner wall of the assembly groove. One end of the telescopic part is fixedly installed with a retaining frame. A rotatable support rod is movably installed in the inner cavity of the retaining frame through a bearing. A pulley sliding on the surface of the guide rail frame is fixedly installed in the middle of the support rod, and multiple clamping parts are arranged on the surface of the pulley; The use of the limiting part can improve the stability of the cage moving up and down outside the guide rail frame on both sides.

[0008] Preferred technical solution of the present invention: The assembly frame includes a bearing plate with an arc-shaped bottom. The top surface of the bearing plate adjacent to the cage is connected to the bottom edge of the cage through multiple reinforcing rods. The airbag is installed on the top of the bearing plate. Multiple reinforcing rods around the assembly frame can be used to wrap the airbag. At the same time, the airbag can also extend to the outside of the assembly frame through the gaps between several reinforcing rods after inflation; The air guide hole is arranged at the center position of the bearing plate, and the drainage assembly is installed on the arc-shaped bottom surface of the bearing plate.

[0009] Further technical solution of the present invention: The airbag includes an upper air hole communicating with the inflation assembly at the top. A lower air hole communicating with the air guide hole is opened at the bottom of the airbag. A high-temperature resistant and anti-slip layer is fixedly installed on the surface of the airbag; The airbag is entirely located inside the assembly frame in the non-inflated state, and will expand to the outside of the assembly frame when filled with gas.

[0010] Preferred technical solution of the present invention: The pressure-bearing component includes a screw telescopic part arranged at the bottom of the inner cavity of the cage. The movable end of the screw telescopic part is fixedly installed with a bearing plate, and several groups of roller frames are fixedly installed at the bottom of the bearing plate; When moving goods with a high weight, it can be moved by means of automatic driving, avoiding the situation of poor stability caused by the shaking of goods during manual pushing. At the same time, the spherical roller frames at the bottom can disperse the pressure brought by the goods by virtue of their spherical characteristics, ensuring uniform pressure inside the cage.

[0011] Preferred technical solution of the present invention: The clamping member includes a merging groove opened on the surface of the pulley. A positioning rod is fixedly installed in the inner cavity of the merging groove. One end of the positioning rod is movably installed with a clamping strip. A magnet block for magnetically adsorbing the clamping strip is fixedly installed in the inner cavity of the merging groove.

[0012] Preferred technical solution of the present invention: The telescopic member includes a receiving tube fixed to the inner wall of the assembly groove. A guiding rod is fixedly installed in the inner cavity of the receiving tube. One end of the guiding rod is movably installed with a telescopic tube. One end of the telescopic tube is fixedly installed with a blocking block. A sealing ring is fixedly installed on the outer wall of the blocking block. A return spring surrounding the outside of the guiding rod is fixedly installed on the surface of the blocking block. An exhaust hole penetrating the inner cavity is opened at one end of the receiving tube facing the inner wall of the assembly groove. An air inlet hole penetrating the inner cavity is also opened at one end of the receiving tube facing the inner wall of the assembly groove. The exhaust hole is installed with the outside of the inflation assembly; the telescopic member can reduce the vibration generated by the up and down movement of the cage, so as to improve the stability of the up and down operation of the cage.

[0013] Preferred technical solution of the present invention: The drainage assembly includes a retaining ring fixed to the outer wall of the air guide hole at the bottom of the bearing plate. A plurality of wind blocking members are arranged outside the retaining ring. A windproof cloth is fixedly installed on the outer walls of the plurality of wind blocking members; among them, the wind blocking member includes a first support frame movably installed on the retaining ring. An activity hole is opened at one end of the first support frame. A second support frame is movably installed in the inner cavity of the activity hole. A positioning spring is fixedly installed outside the second support frame. The top end of the positioning spring is fixed to the surface of the bearing plate. Anti-slip lines are opened on the surface of the end of the second support frame facing the outside of the cage. A closing plug inserted into the inner cavity of the air guide hole is fixedly installed at the other end of the first support frame. The drainage assembly increases the resistance when the cage descends, further improving the descending stability of the cage.

[0014] Preferred technical solution of the present invention: The inflation assembly includes a gas collecting pipe fixed to the outer wall of the cage. A plurality of air filling pipes attached to the surface of the cage are fixedly installed outside the gas collecting pipe. One end of each air filling pipe is fixed to an exhaust hole. The inflation assembly can be used to inflate the airbag, thereby filling the airbag and realizing the expansion of the airbag. At this time, the surface of the airbag will protrude outside the assembly frame, so as to increase the resistance when the cage descends and ensure the descending stability of the cage.

[0015] Compared with the prior art, the safety elevator for building construction has the following beneficial effects:

[0016] (1) The present invention blocks the suddenly descending cage through the cooperation of the limiting parts. And since multiple limiting parts are provided, even if one clamping strip breaks in the initial state, the subsequent clamping strips can still block the descent of the cage through the rotation of the pulleys, and finally the moving cage is paused, ensuring the safe use of the cage after the speed increase during descent.

[0017] (2) When the drainage component of the present invention descends rapidly, the entire airbag is quickly inflated to the maximum state, which is the third inflation state of the airbag in this application. At this time, the outer wall of the airbag can contact the surface of the guide rail frame, increasing the resistance to the descent of the cage again, achieving the function of stabilizing the descent speed of the cage, and further improving the safety of the cage during sudden descent.

[0018] The safety lift for building construction in the present invention is provided with a multi-level safety protection mechanism, which can be limited by the limiting mechanism during the rapid descent process. After the limiting mechanism fails, it can increase the resistance to the descent of the cage through air buffering and the friction between elastic substances and hard metals, slow down its descent speed, and avoid the rapid fall of the lift caused by faults, thus preventing safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structure schematic diagram of the present invention;

[0020] Figure 2 is a three-dimensional structure schematic diagram of the guide rail frame of the present invention;

[0021] Figure 3 is a three-dimensional assembled structure schematic diagram of the assembly frame and the airbag of the present invention;

[0022] Figure 4 is a three-dimensional assembled structure schematic diagram of the limiting part of the present invention;

[0023] Figure 5 is a sectional structure schematic diagram of the clamping part of the present invention;

[0024] Figure 6 is a three-dimensional sectional structure schematic diagram of the telescopic part of the present invention;

[0025] Figure 7 is a three-dimensional structure schematic diagram of the airbag of the present invention;

[0026] Figure 8 is a sectional structure schematic diagram of the inflation component assembled on one side of the cage of the present invention;

[0027] Figure 9 is a three-dimensional exploded structure schematic diagram of the drainage component of the present invention;

[0028] Figure 10 is a three-dimensional structure schematic diagram of the wind blocking part of the present invention;

[0029] Figure 11 Schematic cross-sectional structure diagram of the closed part of the present invention;

[0030] Figure 12 Installation schematic diagram of the screw telescopic member of the present invention;

[0031] Figure 13 Installation schematic diagram of the load-bearing plate of the present invention;

[0032] Figure 14 Installation schematic diagram of the roller frame of the present invention.

[0033] In the figure: 1, guide rail frame; 2, suspension cage; 3, traction rope; 4, assembly box; 5, assembly groove; 6, limiting part; 601, telescopic member; 6011, storage tube; 6012, guide rod; 6013, telescopic tube; 6014, blocking block; 6015, sealing ring; 6016, return spring; 6017, exhaust hole; 6018, intake hole; 602, fixing frame; 603, support rod; 604, pulley; 605, positioning member; 6051, merging groove; 6052, positioning rod; 6053, positioning strip; 6054, magnet block; 7, limiting hole; 8, assembly frame; 801, reinforcing rod; 802, bearing plate; 9, airbag; 901, upper air hole; 902, lower air hole; 903, high-temperature anti-slip layer; 10, inflation assembly; 1001, gas collecting pipe; 1002, inflation pipe; 11, air guide hole; 12, drainage assembly; 1201, fixing ring; 1202, wind blocking member; 12021, first support frame; 12022, moving hole; 12023, second support frame; 12024, positioning spring; 12025, anti-slip pattern; 12026, closing plug; 1203, windproof cloth; 13, closed part; 1301, steering motor; 1302, steering rod; 1303, closing cover; 1304, access slot; 1305, closed slot; 1306, self-locking push rod motor; 14, bearing assembly; 1401, screw telescopic member; 1402, load-bearing plate; 1403, roller frame. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] A safety elevator for building construction provided by an embodiment, refer to Figures 1 to 14As shown in the figure, it includes two guide rail frames 1 and a cage 2 slidably placed between the two guide rail frames 1. At the top of the two guide rail frames 1, there is an assembly box 4. Inside the assembly box 4, there is a driving mechanism. The output shaft of the driving mechanism is connected to the cage 2 through a traction rope 3, and the driving mechanism controls the retraction and release of the traction rope 3 to drive the cage 2 to move up and down along the two guide rail frames 1. The guide rail frame 1 is composed of several interchangeable standard parts. The top of the cage 2 is arranged in an arc shape. Due to the arc-shaped arrangement of the top of the cage 2, when the traction rope 3 drives the cage 2 to rise, the air flow resistance received by the top of the cage 2 can be quickly dispersed. Specifically, the principle of small resistance for a circle can be referred to. The driving mechanism includes components such as a driving transmission motor, a reducer, a transmission shaft, and a winding mechanism. The traction rope 3 is wound on the winding mechanism, and the other end is fixed to the top of the cage 2. Under the action of the transmission motor, the winding mechanism is controlled to rotate to retract and release the traction rope, thereby driving the cage 2 to move up and down between the two guide rail frames 1.

[0036] In the embodiment, as Figure 1 shown, an assembly groove 5 that slides on the outer walls of the two guide rail frames 1 is opened on the outside of the cage 2. On the inner wall of the assembly groove 5, there are several groups of limiting parts 6 that fit the surface of the cage 2. The limiting parts 6 cooperate with the assembly groove 5 to enable the cage 2 to move up and down outside the two guide rail frames 1 and can ensure the stability of the up and down movement of the cage 2. As Figure 4 shown, the limiting part 6 includes a telescopic part 601 fixed to the inner wall of the assembly groove 5. One end of the telescopic part 601 is fixedly installed with a retaining frame 602. Inside the cavity of the retaining frame 602, a rotatable support rod 603 is movably installed through a bearing. In the middle of the support rod 603, a pulley 604 that slides on the surface of the guide rail frame 1 is fixedly installed. On the surface of the pulley 604, there are several clamping parts 605. As Figure 5 shown, the clamping part 605 includes a merging groove 6051 opened on the surface of the pulley 604. Inside the cavity of the merging groove 6051, a positioning rod 6052 is fixedly installed. One end of the positioning rod 6052 is movably installed with a clamping strip 6053. Inside the cavity of the merging groove 6051, a magnet block 6054 that magnetically adsorbs the clamping strip 6053 is fixedly installed. As Figure 2 shown, a plurality of groups of limiting holes 7 that match the clamping strip 6053 are evenly opened on the surface of the guide rail frame 1. As Figure 6As shown in the figure, the telescopic member 601 includes a storage tube 6011 fixed to the inner wall of the assembly groove 5. A guide rod 6012 is fixedly installed in the inner cavity of the storage tube 6011. One end of the guide rod 6012 is movably installed with a telescopic tube 6013. One end of the telescopic tube 6013 is fixedly installed with a blocking block 6014. A sealing ring 6015 is fixedly installed on the outer wall of the blocking block 6014. A return spring 6016 surrounding the outer portion of the guide rod 6012 is fixedly installed on the surface of the blocking block 6014. An exhaust hole 6017 penetrating the inner cavity is formed at one end of the storage tube 6011 facing the inner wall of the assembly groove 5. An air inlet hole 6018 penetrating the inner cavity is also formed at one end of the storage tube 6011 facing the inner wall of the assembly groove 5. The exhaust hole 6017 is installed in connection with the outside of the inflation assembly 10.

[0037] According to existing common knowledge, the lifting speed of a safety lift for building construction is generally 4 - 10 meters per minute. The specific speed may vary according to the model, load capacity, lifting height, and working table surface of the lift. This operation plan is described based on the above lifting speed as the standard, and the specific marked lifting speed can be adjusted correspondingly during the actual application process.

[0038] In this application, two guide rail frames 1 are provided. When the traction rope 3 drives the cage 2 to lift, both sides of the cage 2 wrap the guide rail frames 1 at corresponding positions on both sides through the assembly grooves 5. In this way, the position of the cage 2 during lifting can be limited by using the guide rail frames 1 and the assembly grooves 5, thereby reducing the sway generated during the lifting of the cage 2 and achieving the effect of improving the lifting stability of the cage 2. During the lifting process of the cage 2, one end of the telescopic member 601, the retaining frame 602, cooperates with the pulley 604 on the support rod 603 to move along the outer wall of the guide rail frame 1. When the cage 2 sways, the pulley 604 will be squeezed against the guide rail frame 1. At this time, the pressure will be transmitted to the telescopic tube 6013 through the retaining frame 602 outside the support rod 603. The squeezed telescopic tube 6013 will squeeze the return spring 6016 along the guide rod 6012 through the blocking block 6014 inside the storage tube 6011. After being squeezed, the return spring 6016 can repeatedly absorb and release force, thus achieving the functions of shock absorption and buffering and ensuring the stability of the normal lifting of the cage 2.

[0039] When the lowering speed of the cage 2 exceeds the standard value, the rotation speed of the pulley 604 on the limit part 6 increases accordingly. The inertial force generated by the increased rotation speed of the pulley 604 is greater than the magnetic suction force exerted by the magnet block 6054 on the clamping strip 6053. In this way, the clamping strip 6053 can swing out of the merging groove 6051 with the positioning rod 6052 as the center. When the clamping strip 6053 is inserted into the limit hole 7 on the guide rail frame 1, it can block the suddenly descending cage 2. And because multiple limit parts 6 are provided, even if one clamping strip 6053 breaks in the initial state, the subsequent clamping strips 6053 can still block the descent of the cage 2 through the rotation of the pulley 604. Finally, the cage 2 that pauses to move ensures the safe use of the cage 2 after the lowering speed increases.

[0040] A safety lift for building construction provided by the embodiment is as Figures 1 to 9 shown. An assembly frame 8 is provided at the bottom of the cage 2. An airbag 9 is placed in the inner cavity of the assembly frame 8. An inflation assembly 10 connecting the limit part 6 is provided at the top of the airbag 9; as Figure 3 shown, the assembly frame 8 includes a bearing plate 802 with a circular arc-shaped bottom. The upper end surface of the bearing plate 802 adjacent to the hanging frame 2 is fixedly connected to the bottom edge of the cage 2 through multiple reinforcing rods 801. A drainage assembly 12 is provided at the bottom of the bearing plate 802, and the bottom of the bearing plate 802 is installed outside the drainage assembly 12. An air guide hole 11 is opened at the center position of the bearing plate 802; as Figure 3 and Figure 7 shown, the airbag 9 includes an upper air hole 901 that communicates with the inflation assembly 10 at the top. A lower air hole 902 that communicates with the air guide hole 11 is opened at the bottom of the airbag 9. A high-temperature resistant and anti-slip layer 903 is fixedly installed on the surface of the airbag 9, and a corresponding rubber material can be specifically selected. As Figure 8 shown, the inflation assembly 10 includes a gas collecting pipe 1001 fixed to the outer wall of the cage 2. A number of air filling pipes 1002 that fit on the surface of the cage 2 are fixedly installed outside the gas collecting pipe 1001. One end of each air filling pipe 1002 is fixed to an exhaust hole 6017.

[0041] In the embodiment, when the telescopic tube 6013 squeezes the return spring 6016 along the guide rod 6012 through the blocking block 6014 inside the receiving tube 6011, the sealing ring 6015 on the blocking block 6014 moves synchronously, thereby avoiding air leakage. At this time, after the telescopic tube 6013 extends into the inner cavity of the receiving tube 6011, the exhaust hole 6017 can be used to transport gas, and the transported gas is transmitted to the gas collecting tube 1001 through the gas filling tube 1002. The gas collecting tube 1001 then transmits the gas to the inner cavity of the airbag 9, thereby realizing the expansion of the airbag 9. The airbag 9 of this application is divided into three stages. The first stage is the non-inflated state. The second state is the above-mentioned inflated state. The second state is not the maximum inflation state of the airbag 9. This state is used to increase the descending resistance of the cage 2 and improve the stability of the descent of the cage 2. When the telescopic tube 6013 is pushed outside the receiving tube 6011 by the return spring 6016, gas can be supplemented through the air inlet hole 6018. When the elevator stops running, it reaches the third stage. The gas inside the airbag 9 can be transmitted to the gas filling tube 1002 through the upper air hole 901 of the gas collecting tube 1001, and finally discharged through the air inlet hole 6018 on the receiving tube 6011, so that the airbag 9 returns to the first state. In this state, the airbag 9 will not affect the running state of the cage 2.

[0042] As Figure 9 shown, the drainage component 12 in the embodiment includes a retaining ring 1201 fixed to the outer wall of the air guide hole 11 at the bottom of the bearing plate 802. A plurality of wind blocking members 1202 are arranged outside the retaining ring 1201. The outer walls of the plurality of wind blocking members 1202 are fixedly installed with a windproof cloth 1203. The principle of the drainage component 12 can refer to the existing umbrella-like structure; As Figure 10 shown, the wind blocking member 1202 includes a first support frame 12021 movably installed on the retaining ring 1201. An activity hole 12022 is opened at one end of the first support frame 12021. A second support frame 12023 is movably installed in the inner cavity of the activity hole 12022. A positioning spring 12024 is fixedly installed outside the second support frame 12023. The top end of the positioning spring 12024 is fixed to the surface of the bearing plate 802. Anti-slip lines 12025 are provided on the surface of the end of the second support frame 12023 facing the outside of the cage 2. A closing plug 12026 inserted into the inner cavity of the air guide hole 11 is fixedly installed at the other end of the first support frame 12021.

[0043] When the suspension cage 2 is driven by the towing rope 3 to move downward along the guide rail frame 1, the first support frame 12021 and the second support frame 12023 on the drainage assembly 12 cooperate with the windproof cloth 1203 and all incline downward. Specifically, it can be referred to the shape of an umbrella. At this time, when the suspension cage 2 moves downward, the drainage assembly will be interfered by resistance. At this time, the drainage assembly 12 can reduce the descending speed of the suspension cage 2, thereby further improving the descending stability of the suspension cage 2.

[0044] When the descending speed of the suspension cage 2 of the present application exceeds the standard of 4 - 10 meters per minute, the pressure received by the drainage assembly 12 will immediately increase. At this time, the first support frame 12021, the second support frame 12023 cooperate with the windproof cloth 1203 to squeeze the positioning spring 12024. Subsequently, the first support frame 12021, the second support frame 12023 cooperate with the windproof cloth 1203 to incline upward. Then, the outer wall of the upward-inclined second support frame 12023 can cooperate with the frictional force generated by the contact between the anti-slip pattern 12025 and the surface of the guide rail frame 1 to realize the function of further reducing the speed of the suspension cage 2, so as to ensure the use safety of the suspension cage 2 in an emergency state.

[0045] When the first support frame 12021 inclines upward, the first support frame 12021 will synchronously pull the closing plug 12026. At this time, the air guide hole 11 can be opened. When the descending speed of the suspension cage 2 exceeds the safety value, the air flow at the bottom of the suspension cage 2 will be injected into the air guide hole 11. At the same time, the air guide hole 11 can inject the air flow into the airbag 9 through the lower air hole 902 on the airbag 9, thereby enabling the entire airbag 9 to quickly expand to the maximum state, which is the third expansion state of the airbag 9 of the present application. At this time, the outer wall of the airbag 9 can contact the surface of the guide rail frame 1, increasing the resistance received by the descending suspension cage 2 again, achieving the function of stabilizing the descending speed of the suspension cage 2, and further improving the descending safety of the suspension cage 2 in an emergency state.

[0046] Refer to Figure 1 and Figure 11 As shown in [relevant figure] and [relevant figure], in the embodiment, a closing part 13 is respectively arranged at the front and rear of the suspension cage 2. The closing part 13 includes a steering motor 1301 fixed inside the suspension cage 2. The output end of the steering motor 1301 is fixedly installed with a steering rod 1302. A closing cover 1303 is fixedly installed outside the steering rod 1302. An access slot 1304 is opened on both the front and rear surfaces of the suspension cage 2. A closing slot 1305 is opened at the top of the access slot 1304. A self-locking push rod motor 1306 is fixedly installed inside the closing cover 1303. The closing part 13 is used to open and close the internal space of the suspension cage 2.

[0047] When the cage 2 is lifted or lowered to the required position under the drive of the towing rope 3, first energize and start the push rod motor 1306. At this time, the moving end of the push rod motor 1306 disengages from the inner cavity of the closed groove 1305 on the access groove 1304. Subsequently, start the steering motor 1301, and the steering motor 1301 will drive the steering rod 1302 to rotate. The rotating steering rod 1302 can drive the closed cover 1303 to move horizontally towards the building where the object needs to be transported. When the closed cover 1303 moves to a horizontal state, the closed cover 1303 acts as a bridge. During the construction of hydraulic buildings, in order to connect with the elevator, it is necessary to build a bracket again. This application uses the closed cover 1303 to achieve the original bracket function. At this time, the inconvenience and time consumption caused by the construction of the bracket can be saved, and the hydraulic construction efficiency is effectively improved.

[0048] Please refer specifically to Figure 12 - Figure 14 A movable pressure-bearing assembly 14 is provided at the bottom of the inner cavity of the cage 2; the pressure-bearing assembly 14 includes a screw telescopic member 1401 provided at the bottom of the inner cavity of the cage 2. The screw telescopic member 1401 includes a pushing motor, a screw, a guide rail, and a moving plate connected to the screw and the guide rail. Among them, the pushing motor on the screw telescopic member 1401 is an asynchronous motor. A bearing plate 1402 is fixedly installed at the moving end of the screw telescopic member 1401. The bottom of the bearing plate 1402 is fixed to the surface of the moving plate on the screw telescopic member 1401. A plurality of sets of roller frames 1403 are fixedly installed at the bottom of the bearing plate 1402. The roller frame 1403 includes a bracket fixed to the bottom of the bearing plate 1402, and a spherical ball is movably installed in the middle of the bracket. The ball is used to disperse the pressure received by the bearing plate 1402.

[0049] Since the space inside the cage 2 is relatively small under normal conditions, when there are too many objects loaded inside the cage 2, first flatten the closed cover 1303, and then energize and start the screw telescopic member 1401. The screw telescopic member 1401 can drive the bearing plate 1402 to move. The moving bearing plate 1402 can cooperate with the roller frame 1403 to roll smoothly on the closed cover 1303. At this time, the moving bearing plate 1402 can realize the automatic pushing of goods and people, avoiding the situation that due to too many goods inside the cage 2, the staff is restricted by the space inside the cage 2 and cannot effectively apply force to carry the goods, thereby improving the handling efficiency of the goods inside the cage 2 and reducing the physical consumption caused by the staff carrying the goods at the same time.

[0050] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention.

Claims

1. A safety lift for building construction, comprising two guide rail frames (1) and a cage (2) slidably disposed between the two guide rail frames (1). An assembly box (4) is provided at the top of the two guide rail frames (1). A driving mechanism is provided inside the assembly box (4). The output shaft of the driving mechanism is connected to the cage (2) through a traction rope (3), and the driving mechanism controls the retraction and release of the traction rope (3) to drive the cage (2) to move up and down along the two guide rail frames (1). It is characterized in that: An assembly groove (5) that slides on the outer walls of two guide rail frames (1) is formed on the exterior of the cage (2). A plurality of groups of limiting parts (6) that are in fit with the surface of the cage (2) are arranged on the inner wall of the assembly groove (5). A plurality of groups of limiting holes (7) that match the limiting parts (6) are evenly formed on the surface of the guide rail frame (1). An assembly frame (8) is arranged at the bottom of the cage (2). An airbag (9) is placed in the inner cavity of the assembly frame (8). An inflation assembly (10) for connecting the limiting parts (6) is arranged at the top of the airbag (9). An air guide hole (11) that penetrates the airbag (9) is formed at the center of the bottom of the assembly frame (8). A drainage assembly (12) is arranged outside the air guide hole (11) on the assembly frame (8).

2. The safety lift for building construction according to claim 1, characterized in that: The top of the cage (2) is arc-shaped; a closing part (13) is arranged at the front and rear parts of the cage (2) respectively; a movable pressure-bearing assembly (14) is arranged at the bottom of the inner cavity of the cage (2); the guide rail frame (1) is composed of a plurality of interchangeable standard parts, the structures of each standard part are completely the same, and a plurality of limiting holes (7) are formed on each standard part.

3. A safety lift for building construction according to claim 1 or 2, characterized in that: The limiting part (6) includes a telescopic part (601) fixed on the inner wall of the assembly groove (5). A retaining frame (602) is fixedly installed at one end of the telescopic part (601). A rotatable support rod (603) is movably installed in the inner cavity of the retaining frame (602) through a bearing. A pulley (604) that slides on the surface of the guide rail frame (1) is fixedly installed in the middle of the support rod (603). A clamping part (605) that is matched and clamped with the limiting hole (7) is arranged on the surface of the pulley (604).

4. A safety lift for building construction according to claim 1 or 2, characterized in that: The assembly frame (8) includes a bearing plate (802) with an arc-shaped bottom. The top surface of the bearing plate (802) close to the cage (2) is connected to the bottom edge of the cage (2) through a plurality of reinforcing rods (801). The airbag (9) is installed on the top of the bearing plate (802). The air guide hole (11) is arranged at the center of the bearing plate (802). The drainage assembly (12) is installed on the arc-shaped bottom surface of the bearing plate (802).

5. A safety lift for building construction according to claim 1 or 2, characterized in that: An upper air hole (901) that is in communication with the inflation assembly (10) is formed at the top of the airbag (9), and a lower air hole (902) that is in communication with the air guide hole (11) is formed at the bottom. A high-temperature resistant and anti-slip layer (903) is fixedly installed on the surface of the airbag (9).

6. The safety lift for building construction according to claim 2, characterized in that: The pressure-bearing assembly (14) includes a screw telescopic part (1401) arranged at the bottom of the inner cavity of the cage (2). A bearing plate (1402) is fixedly installed at the moving end of the screw telescopic part (1401). A plurality of groups of roller frames (1403) are fixedly installed at the bottom of the bearing plate (1402).

7. A safety lift for building construction according to claim 3, characterized in that: The clamping member (605) includes a merging groove (6051) formed on the surface of the pulley (604). A positioning rod (6052) is fixedly installed in the inner cavity of the merging groove (6051). One end of the positioning rod (6052) is movably installed with a clamping strip (6053) matching the limiting hole (7). A magnet block (6054) for magnetically adsorbing the clamping strip (6053) is fixedly installed in the inner cavity of the merging groove (6051).

8. The safety lift for building construction according to claim 3, wherein: The telescopic member (601) includes a storage tube (6011) fixed to the inner wall of the assembly groove (5). A guide rod (6012) is fixedly installed in the inner cavity of the storage tube (6011). One end of the guide rod (6012) is movably installed with a telescopic tube (6013). One end of the telescopic tube (6013) is fixedly installed with a blocking block (6014). A sealing ring (6015) is fixedly installed on the outer wall of the blocking block (6014). A return spring (6016) surrounding the guide rod (6012) is fixedly installed on the surface of the blocking block (6014). An exhaust hole (6017) penetrating the inner cavity is formed at one end of the storage tube (6011) facing the inner wall of the assembly groove (5). An air inlet hole (6018) penetrating the inner cavity is also formed at one end of the storage tube (6011) facing the inner wall of the assembly groove (5). The exhaust hole (6017) is installed on the outside of the inflation assembly (10).

9. The safety lift for construction according to claim 4, characterized in that: The drainage assembly (12) includes a retaining ring (1201) fixed to the outer wall of the air guide hole (11) at the bottom of the bearing plate (802). A number of wind blocking members (1202) are arranged outside the retaining ring (1201). A windproof cloth (1203) is fixedly installed on the outer walls of the number of wind blocking members (1202). Among them, the wind blocking member (1202) includes a first support frame (12021) movably installed on the retaining ring (1201). An activity hole (12022) is formed at one end of the first support frame (12021). A second support frame (12023) is movably installed in the inner cavity of the activity hole (12022). A positioning spring (12024) is fixedly installed outside the second support frame (12023). The top end of the positioning spring (12024) is fixed to the surface of the bearing plate (802). Anti-slip lines (12025) are formed on the surface of one end of the second support frame (12023) facing the outside of the cage (2). A closing plug (12026) inserted into the inner cavity of the air guide hole (11) is fixedly installed at the other end of the first support frame (12021).

10. A safety lift for building construction according to claim 8, characterized in that: The inflation assembly (10) includes a gas collecting pipe (1001) fixed to the outer wall of the cage (2). A number of inflation pipes (1002) attached to the surface of the cage (2) are fixedly installed outside the gas collecting pipe (1001). One end of each inflation pipe (1002) is fixed to an exhaust hole (6017).

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