CN116750627A - Large-span prestressed concrete double-T plate lifting device - Google Patents

Abstract

The application discloses a large-span prestressed concrete double-T plate hoisting device, which comprises a plurality of hanging strips, a mounting frame, a hanging frame and a frame connecting piece, wherein the hanging strips are arranged on the hanging frame; the hanging strip is used for supporting the double T-shaped plates to be hoisted; the mounting frame is used for fixing two ends of the hanging strip; the hanger is used for connecting hoisting equipment; the mounting frame is arranged between the hanging strip and the hanging bracket; the hanging bracket is detachably connected to the mounting frame; the bottom end of the frame connecting piece is connected to the mounting frame; the top end of the frame connecting piece is movably connected with the hanging frame, so that the top end of the frame connecting piece at least has a first adjusting position and a second adjusting position relative to the mounting frame. The application has the beneficial effects of providing a large-span prestressed concrete double-T plate hoisting device in sliding connection with the top end of a frame connecting piece and a hanging bracket.

Description

Large-span prestressed concrete double-T plate lifting device

Technical Field

The application belongs to the technical field of hoisting devices, and particularly relates to a large-span prestressed concrete double-T-plate hoisting device.

Background

The lifting appliance is a device for lifting heavy objects in lifting operation, the most common lifting appliance is a lifting hook, and other lifting rings, lifting chucks, clamps, lifting beams and the like. When the spreader hoists building materials, tilting of the spreader and building elements will cause the building elements to rock and slide.

In the related art, the technical scheme that the lifting included angle of the lifting appliance is adjustable to improve the working efficiency of the lifting appliance is provided in Chinese patent document CN 209601918U. The related art does not give any technical teaching to solve the problem of tilting of the mounting frame of the spreader.

Disclosure of Invention

The summary of the application is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. The summary of the application is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

In order to solve the technical problems mentioned in the background art, some embodiments of the present application provide a large-span prestressed concrete double-T-plate hoisting device, which includes a plurality of hanging strips, a mounting frame, a hanger and a frame connecting piece. The hanging belt is used for supporting the double T-shaped plates to be hoisted. The mounting frame is used for fixing two ends of the hanging strip. The hanger is used for connecting hoisting equipment. The mounting frame is arranged between the hanging strip and the hanging bracket. The hanger is detachably connected to the mounting frame. The bottom of the frame connector is connected to the mounting frame. The top end of the frame connecting piece is movably connected with the hanging frame, so that the top end of the frame connecting piece at least has a first adjusting position and a second adjusting position relative to the mounting frame.

Further, the top end of the frame connecting piece is in sliding connection with the hanging frame.

Further, the large-span prestressed concrete double-T plate hoisting device further comprises a leveling servo motor. Wherein the leveling servo motor is mounted to the hanger. The leveling servo shaft of the leveling servo motor is connected to the top end of the frame connecting piece to drive the top end of the frame connecting piece to slide relative to the hanging frame.

Further, the large-span prestressed concrete double-T plate hoisting device further comprises a guide rod, a leveling threaded pipe and a leveling threaded column. Wherein the guide bar is fixedly connected to the hanger. The leveling threaded pipe is constructed in a pipe structure and the inner wall of the pipe is provided with internal threads. The leveling threaded column is arranged inside the leveling threaded pipe and is provided with external threads matched with the internal threads. The leveling screw post is provided with a guide groove with an open top end, and the guide rod is at least partially accommodated in the guide groove so that the leveling screw post and the guide rod form sliding connection. The leveling threaded pipe and the hanging bracket form a rotary connection which can be driven by the leveling servo motor to rotate. The top end of the frame connector is secured to the leveling threaded post.

Further, the large-span prestressed concrete double-T-plate lifting device further comprises a plurality of wheel sets. The wheel group comprises two belt wheels which are correspondingly arranged to roll the two ends of the same sling. The installation frame comprises an outer frame, a plurality of sliding frames and scissor type telescopic frames. Wherein the outer frame is configured with two parallel longitudinal beams and two parallel transverse beams. The sliding frames and the outer frames form sliding connection along the extending direction of the longitudinal beams. The scissor joint of the scissor type telescopic frame is connected to the sliding frames so that one sliding frame drives the other sliding frames to slide when sliding. Both ends of the sliding frame are provided with rotating seats. The pulley is rotatably connected to the rotating seat.

Further, the large-span prestressed concrete double-T plate hoisting device further comprises a driving screw rod, a distance-adjusting servo motor and a driving nut. Wherein, drive lead screw rotates to be connected to the frame. The distance adjusting motor shaft of the distance adjusting servo motor is connected to the driving screw rod to enable the driving screw rod to rotate. The driving nut is sleeved to the driving screw rod and connected with one of the sliding frames, so that the distance-adjusting servo motor drives the sliding frames to slide when the driving screw rod is driven to rotate.

Further, the large-span prestressed concrete double-T-shaped plate hoisting device further comprises a transmission shaft and an elastic servo motor. Wherein, the transmission shaft and the outer frame form a rotary connection. The elasticity motor shaft of elasticity servo motor is connected to the transmission shaft in order to drive the band pulley rotation.

Further, the pulleys in one pulley set are arranged overlapping the pulleys in the other pulley set so that both pulleys have the same axis of rotation. The drive shaft forms a rotation-proof connection with all pulleys having the same axis of rotation.

Further, the belt wheel is provided with a wheel hole to be sleeved on the transmission shaft and form sliding connection with the transmission shaft.

Further, the sling includes a first strap, a second strap, a first buckle, and a second buckle. One end of the first belt body is connected to a first installation position of the installation frame. One end of the second belt body is connected to a second mounting position of the mounting frame. The first buckle is installed at the other end of the first belt body. The second buckle is arranged at the other end of the second belt body. The first buckle is detachably connected to the second buckle.

The application has the beneficial effects that:

the top end of the frame connecting piece and the hanging frame form a large-span prestressed concrete double-T plate hanging device in sliding connection.

More specifically, some embodiments of the present application may have the following specific benefits:

1. the large-span prestressed concrete double-T plate hoisting device also comprises a guide rod, a leveling threaded pipe and a leveling threaded column, the distance between the sliding frames can be adjusted, and a user can adjust the positions of the lifting hook and the hanging strip according to the actual specification of the double-T plate.

2. The large-span prestressed concrete double-T plate hoisting device also comprises a plurality of wheel sets, wherein each wheel set comprises two belt pulleys which are correspondingly arranged to wind the two ends of the same sling so as to wind or release the sling, and the supporting effect of the sling on the double-T plate is improved.

3. The belt wheel and the transmission shaft are connected in a rotation-stopping way and in a sliding way, so that the technical effects of winding and releasing of the hanging strips and adjusting of the interval between the hanging strips are achieved simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the application and are not to be construed as unduly limiting the application.

The same or similar reference numbers will be used throughout the drawings to refer to the same or like elements. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.

In the drawings:

fig. 1 is a schematic view of the overall structure of a large-span prestressed concrete double-T-plate hoisting device according to an embodiment of the present application;

FIG. 2 is a partial cross-sectional view of the large span prestressed concrete double T-plate hoisting device of the embodiment of FIG. 1;

FIG. 3 is a schematic view of the hanger in the embodiment of FIG. 1;

FIG. 4 is an enlarged schematic view of the portion A in FIG. 3, mainly illustrating the structure of the positioning frame and the like;

FIG. 5 is a schematic illustration of the connection between the frame connector and leveling screw post of the embodiment of FIG. 1;

FIG. 6 is a schematic view of the overall structure of the mounting frame in the embodiment shown in FIG. 1;

FIG. 7 is an exploded view of the carriage, drive screw, drive nut, etc. of the embodiment of FIG. 1;

FIG. 8 is an enlarged schematic view of the portion B of FIG. 7, mainly illustrating the configuration of a pitch drive gear and the like;

FIG. 9 is an exploded view of the drive shaft, pulley, etc. arrangement of the embodiment of FIG. 1;

FIG. 10 is an enlarged schematic view of FIG. 9 at C, mainly illustrating the structure of the take-up drive gear and the like;

FIG. 11 is an enlarged schematic view of the portion D of FIG. 9, mainly illustrating the structure of the idler gear and the like;

FIG. 12 is a schematic view of the connection of the harness and pulley structures of the embodiment of FIG. 1;

FIG. 13 is a schematic diagram showing the connection between the first buckle and the second buckle in the embodiment shown in FIG. 1;

FIG. 14 is a schematic view of the first buckle in the embodiment shown in FIG. 1, mainly illustrating the structure of the positioning slot and the like;

fig. 15 is a schematic structural view of the second buckle in the embodiment shown in fig. 1, mainly illustrating the structure of the positioning block and the like.

Meaning of reference numerals:

1000. a large-span prestressed concrete double-T plate hoisting device;

1100. a hanging belt; 1110. a first belt body; 1120. a second belt body; 1130. a first buckle; 1131. a positioning groove; 1140. a second buckle; 1141. a mounting box; 1142. a plastic spring; 1143. a spring guide post; 1144. a magnetic suction plate; 1145. an electromagnet; 1146. a positioning block; 1147. a separation spring; 1148. a push plate;

1200. a mounting frame; 1210. an outer frame; 1211. a longitudinal beam; 1212. a cross beam; 1220. a carriage; 1221. a rotating seat; 1230. a scissor type expansion bracket; 1231. cutting fork nodes; 1232. an end node; 1240. a total wireless controller; 1250. a rotating frame; 1260. a rubber bellows; 1270. a protective frame; 1280. a lifting hook;

1300. a hanging bracket; 1310. a vial; 1320. a hanging hole; 1330. a boom; 1340. hanging a frame; 1350. a triangle; 1360. a positioning frame;

1400. a frame connector; 1410. leveling the servo motor; 1411. leveling a motor shaft; 1420. a guide rod; 1421. a limiting surface; 1430. leveling the threaded pipe; 1431. an internal thread; 1432. a worm wheel; 1440. leveling the threaded column; 1441. an external thread; 1442. a guide groove;

1500. a wheel set; 1510. a belt wheel; 1511. wheel holes;

1600. driving a screw rod; 1610. a distance-adjusting driven gear; 1620. a drive nut;

1700. a distance-adjusting servo motor; 1710. a motor shaft for adjusting the distance; 1720. a distance-adjusting driving gear;

1800. a transmission shaft; 1810. tightness of the driven gear;

1900. an elastic servo motor; 1910. tightness of the motor shaft; 1920. an elastic driving gear; 1930. a transmission rod; 1931. a first transmission gear; 1932. and a second transmission gear.

Detailed Description

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While embodiments of the present disclosure are illustrated in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, the embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.

It should be further noted that, for convenience of description, only a portion related to the present application is shown in the drawings. Features in embodiments of the present disclosure may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.

It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.

The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 15, a large span prestressed concrete double T-plate lifting device 1000 is provided in the present embodiment, which includes a plurality of hanging strips 1100, a mounting frame 1200, a hanging bracket 1300, and a frame connector 1400. Wherein the hanging strip 1100 is used for supporting the double T-plate to be hoisted. The mounting frame 1200 is used to secure both ends of the hanging strip 1100. Hanger 1300 is used to connect lifting apparatus. The mounting frame 1200 is disposed between the harness 1100 and the hanger 1300. Hanger 1300 is detachably connected to mounting frame 1200. The bottom end of the frame connector 1400 is connected to the mounting frame 1200. The top end of the frame connector 1400 is movably connected with the hanger 1300 such that the top end of the frame connector 1400 has at least a first adjustment position and a second adjustment position with respect to the mounting frame 1200. The specific connection between the parts of the large span prestressed concrete double T-plate hoisting device 1000 will be described in detail later.

By adopting the technical scheme, the frame connecting pieces 1400 are slidably connected to the hanging frame 1300, after the double-T plate is lifted by the large-span prestressed concrete double-T plate lifting device 1000, the plurality of frame connecting pieces 1400 slide relative to the hanging frame 1300, the inclination degree of the mounting frame 1200 is indirectly adjusted, the inclination degree of the double-T plate to be lifted is further adjusted, the level of the double-T plate is kept, the shaking probability of the double-T plate is reduced, and the stability and safety of the double-T plate in the lifting process are ensured.

Specifically, referring to fig. 1-5, hanger 1300 is provided with a hanger hole 1320 and includes a hanger bar 1330, a hanger frame 1340, and a triangle 1350. The hanging hole 1320 is used to connect lifting equipment. Triangle 1350 is located between boom 1330 and boom 1340. Triangle 1350 has one end fixedly connected to hanger bar 1330 and the other end fixedly connected to hanger bar 1340. Triangle 1350 is symmetrically arranged with the extending direction of boom 1330 as the symmetry axis. The large span prestressed concrete double T-plate hoisting device 1000 further comprises a leveling servo motor 1410. Wherein the leveling servo motor 1410 is mounted to the hanger 1300. The leveling motor shaft 1411 of the leveling servo motor 1410 is connected to the top end of the frame connector 1400 to drive the top end of the frame connector 1400 to slide with respect to the hanger 1300.

By adopting the above technical scheme, the sliding of the frame connector 1400 relative to the hanger 1300 is controlled by the leveling servo motor 1410, manual operation is not needed, the cost is saved, the safety of a user is ensured, and the control precision is ensured. Symmetrically arranged triangular plates 1350 play a role in reinforcing the hanging bracket 1300, and ensure the strength of the hanging bracket 1300.

More specifically, the large span prestressed concrete double-T-plate hoisting device 1000 further includes a guide bar 1420, a leveling threaded pipe 1430 and a leveling threaded post 1440. Wherein the guide bar 1420 is fixedly connected to the hanger 1300. The leveling threaded pipe 1430 is constructed in a pipe structure and the pipe inner wall is provided with internal threads 1431. The leveling threaded post 1440 is disposed inside the leveling threaded tube 1430 and is provided with external threads 1441 that mate with the internal threads 1431. The leveling threaded post 1440 is provided with an open-top guide groove 1442, and the guide bar 1420 is at least partially received in the guide groove 1442 such that the leveling threaded post 1440 is in sliding connection with the guide bar 1420. The top end of the leveling threaded pipe 1430 is provided with a worm wheel 1432. The leveling motor shaft 1411 of the leveling servo motor 1410 is engaged with the worm wheel 1432. The rotational connection of the leveling threaded pipe 1430 and the hanger 1300 can be driven to rotate by the leveling servo motor 1410. The top end of the frame connector 1400 is secured to a leveling threaded post 1440. The hanger 1300 also includes a spacer 1360 for positioning the installation location of the leveling threaded pipe 1430 and in rotational connection with the leveling threaded pipe 1430.

By adopting the technical scheme, the guide rod 1420 plays a role in limiting and guiding the leveling threaded column 1440, and the leveling threaded column 1440 is prevented from rotating together when the leveling threaded pipe 1430 rotates. Thus, when the leveling threaded pipe 1430 rotates, the leveling threaded post 1440 moves along the rotation axis direction of the leveling threaded pipe 1430 under the guiding and limiting actions of the guiding rod 1420 and drives the frame connector 1400 to move, thereby realizing the sliding connection between the frame connector 1400 and the hanger 1300. The spacer 1360 improves the ease of installation of the leveling threaded pipe 1430.

More specifically, the width of the end of the internal thread 1431 remote from the guide groove 1442 is greater than the width of the end of the internal thread 1431 near the guide groove 1442. The external thread 1441 is shaped to match the shape of the internal thread 1431 and has a greater width at its end remote from the inner wall of the tube than at its end near the inner wall of the tube. The guide bar 1420 is provided with a stop surface 1421, the stop surface 1421 being located in the guide groove 1442.

By adopting the technical scheme, the tightness of connection between the leveling threaded pipe 1430 and the leveling threaded column 1440 can be increased, and the probability of sliding wire, loosening or separating between the leveling threaded pipe 1430 and the leveling threaded column 1440 is reduced, so that the leveling threaded pipe 1430 and the leveling threaded column 1440 can be stably connected. The stop surface 1421 limits the limit position of the leveling threaded pipe 1430 as it slides downward relative to the guide rod 1420, preventing continued movement of the leveling threaded pipe 1430 eventually out of the leveling threaded post 1440.

More specifically, referring to fig. 3 and 6-8, the large span prestressed concrete double T-plate hoisting device 1000 further includes a number of wheelsets 1500 and vials 1310. The wheel set 1500 includes two pulleys 1510 that are correspondingly provided to wind both ends of the same sling 1100. The vials 1310 are fixedly attached to the outside of the hanger 1300. The mounting frame 1200 includes an outer frame 1210, a plurality of carriages 1220 and scissor jack 1230. The outer frame 1210 is constructed with two parallel longitudinal beams 1211 and two parallel transverse beams 1212. The plurality of sliding frames 1220 and the outer frame 1210 form a sliding connection along the extending direction of the longitudinal beams 1211. The scissor jack 1230 has a plurality of scissor nodes 1231 and end nodes 1232 formed thereon. The scissors joint 1231 of the scissors linkage 1230 is connected to the carriages 1220 such that when one of the carriages 1220 slides, the other carriage 1220 is slid. Both ends of the carriage 1220 are provided with a rotation seat 1221. Pulley 1510 is rotatably coupled to rotary base 1221.

By adopting the above technical scheme, the sliding frames 1220 drive the scissor type telescopic frames 1230 to stretch when sliding, thereby driving other sliding frames 1220 to slide, and enabling the distance between the sliding frames 1220 to be increased or decreased equidistantly, thus realizing equidistant adjustment between the sliding frames 1220.

More specifically, the large-span prestressed concrete double-T-plate lifting device 1000 further comprises a driving screw 1600, a distance-adjusting servo motor 1700 and a driving nut 1620. Wherein, drive screw 1600 is rotatably connected to frame 1210. In this embodiment, the driving screw 1600 is a bidirectional screw. The drive screw 1600 is provided with a pitch adjustment driven gear 1610. The mounting frame 1200 also includes a turret 1250. The turret 1250 is fixedly connected to the stringers 1211 and is arranged parallel to the carriages 1220. The plurality of sliding frames 1220 are symmetrically arranged with the extending direction of the rotating frame 1250 as a symmetrical axis. The driving screw 1600 penetrates the rotating frame 1250 and is rotatably connected with the rotating frame 1250. A pitch drive gear 1720 is fixedly connected to the pitch motor shaft 1710 and in meshed connection with the pitch driven gear 1610. The distance adjusting motor shaft 1710 of the distance adjusting servo motor 1700 drives the distance adjusting driven gear 1610 to rotate through the rotation of the distance adjusting driving gear 1720 so as to drive the screw 1600 to rotate. The driving nut 1620 is sleeved to the driving screw 1600 and connected with one of the sliding frames 1220, so that the distance adjusting servo motor 1700 drives the sliding frames 1220 to slide when the driving screw 1600 rotates. In this embodiment, the driving nut 1620 is fixedly connected to the two farthest sliding frames 1220, respectively. Rubber bellows 1260 are arranged between the sliding frames 1220, between the sliding frames 1220 and the cross beam 1212 and between the sliding frames 1220 and the rotating frame 1250, and are sleeved on the driving screw 1600.

By adopting the technical scheme, the rotation of the driving screw rod 1600 is controlled by adopting the distance-adjusting servo motor 1700, so that the telescopic control of the sliding frame 1220 adopts an electric mode, the safety and the convenience are realized, and the control precision of the distance adjustment of the sliding frame 1220 is relatively high. The driving nut 1620 is slidably connected with the two sliding frames 1220 furthest from each other respectively to maximize the distance adjustment range, so that the large-span prestressed concrete double-T-plate lifting device 1000 of the embodiment can be suitable for more application scenes, double-T plates with various specifications can be lifted, and meanwhile, the double-T plates can be vertically lifted, and the probability of occurrence of the problems of deformation, middle arch, cracking and the like of the double-T plates can be reduced. The rubber bellows 1260 can play a role in protecting the driving screw 1600 and prolong the service life of the driving screw 1600.

The frame connector 1400 is slidably connected to the hanger 1300 to adjust the inclination angle of the mounting frame 1200, so that the mounting frame 1200 can be kept horizontal, and under the calibration effect of the leveling bubble 1310, the double-T plate can be prevented from being inclined along with the mounting frame 1200 and dragging the sliding frame 1220 to slide, thereby indirectly damaging the distance-adjusting servo motor 1700.

More specifically, referring to fig. 6 and 9 to 11, the large span prestressed concrete double T-plate hoisting device 1000 further includes a transmission shaft 1800 and a tension servo motor 1900. Wherein the transmission shaft 1800 and the outer frame 1210 form a rotary connection. A slack motor shaft 1910 of the slack servo motor 1900 is connected to the drive shaft 1800 to drive rotation of the pulley 1510. In this embodiment, a take-up motor shaft 1910 is fixedly connected with a take-up drive gear 1920. The large span prestressed concrete double T-plate hoisting device 1000 further comprises a transmission rod 1930 and a protective bracket 1270. The protective frame 1270 is fixedly coupled to the outer frame 1210. A transmission rod 1930 is rotatably connected to the longitudinal beam 1211 and penetrates the protective bracket 1270. The transmission lever 1930 is provided with a first transmission gear 1931 and a second transmission gear 1932. First drive gear 1931 is in meshed connection with take-up drive gear 1920. The drive shaft 1800 is fixedly connected with a loose driven gear 1810 in meshed connection with a second drive gear 1932. The rotation of the elastic motor shaft 1910 drives the first transmission gear 1931 to rotate, and then drives the transmission rod 1930 and the second transmission gear 1932 to rotate. The second drive gear 1932 rotates to drive the elastic driven gear 1810 meshed with the second drive gear to rotate, so that the transmission shaft 1800 rotates. The pulleys 1510 in one wheel set 1500 are arranged overlapping the pulleys 1510 in the other wheel set 1500 such that both pulleys 1510 have the same axis of rotation. The drive shaft 1800 forms a rotation-stopping connection with all pulleys 1510 having the same axis of rotation. Rotation of drive shaft 1800 rotates pulley 1510, which is in anti-rotation connection therewith.

With the above-described solution, when the transmission shaft 1800 rotates, the pulley 1510 follows the synchronous rotation, thereby achieving winding or releasing of the hanging strip 1100. The arrangement of the elastic servo motor 1900 enables the winding or releasing of the hanging strip 1100 to realize electric control, is safe and labor-saving, and can ensure control precision. The protective frame 1270 protects the transmission rod 1930 from damage and prolongs the service life of the transmission rod.

More specifically, pulley 1510 is provided with a pulley bore 1511 for nesting with drive shaft 1800 and forming a sliding connection with drive shaft 1800.

With the above solution, the pulley 1510 and the transmission shaft 1800 not only form a rotation-proof connection but also a sliding connection. When the distance-adjusting servomotor 1700 works, the pulley 1510 and the transmission shaft 1800 form a sliding connection, so that the distance between the wheel set 1500 and the wheel set 1500, that is, the distance between the hanging strips 1100 and the distance between the adjacent hanging hooks 1280 are adjusted, and the distance-adjusting servomotor can be suitable for hoisting double-T plates with different specifications. When the tension servo motor 1900 is operated, the pulley 1510 is rotated to wind up or release the sling 1100 to adjust its tension to better support the double-T plate, as the pulley 1510 forms a non-rotating connection with the drive shaft 1800. That is, the connection relationship between the transmission shaft 1800 and the pulley 1510 achieves both the technical effects of the adjustment of the distance between the slings 1100, the distance between the adjacent hooks 1280, and the winding or releasing of the slings 1100.

More specifically, referring to fig. 12-15, the harness 1100 includes a first strap 1110, a second strap 1120, a first clasp 1130, and a second clasp 1140. Wherein one end of the first band 1110 is connected to a first mounting position of the mounting frame 1200. One end of the second band 1120 is connected to a second mounting position of the mounting frame 1200. The first buckle 1130 is mounted at the other end of the first band 1110. The second buckle 1140 is mounted at the other end of the second belt body 1120. The first clasp 1130 is removably connected to the second clasp 1140.

In this embodiment, positioning slots 1131 are formed on two sides of the first buckle 1130. The second buckle 1140 includes a mounting box 1141, a plastic spring 1142, a spring guide post 1143, a magnetic plate 1144, an electromagnet 1145, and a positioning block 1146. The plastic spring 1142 is always in a compressed state and one end is fixedly connected to the mounting box 1141. One end of the spring guide post 1143 is fixedly connected to the mounting box 1141 and the plastic spring 1142 is sleeved on the spring guide post 1143. The magnetic plate 1144 is slidably coupled to the spring guide post 1143. The electromagnet 1145 is fixedly attached to the mounting box 1141. One end of the positioning block 1146 is fixedly connected to the magnetic plate 1144 and slidingly connected to the mounting box 1141.

By adopting the above technical scheme, when the first buckle 1130 is pushed into the second buckle 1140, the plastic spring 1142 is further compressed and then returns to the elastic force when the first buckle 1130 is not pushed in, so that the positioning groove 1131 and the positioning block 1146 are mutually embedded to form a clamping connection, so that the first belt body 1110 and the second belt body 1120 form a fixed connection. When the electromagnet 1145 is energized, the electromagnet 1145 generates magnetic attraction to the magnetic attraction plate 1144, the magnetic attraction plate 1144 slides with the spring-generating guide post 1143, and the first buckle 1130 and the positioning block 1146 are separated from each other to separate the first band 1110 from the second band 1120 when the plastic spring 1142 is compressed and approaches the electromagnet 1145.

More specifically, the second catch 1140 includes a split spring 1147 and a push plate 1148. One end of the separating spring 1147 is fixedly connected to the mounting box 1141. The push plate 1148 is fixedly attached to the other end of the separation spring 1147.

With the above solution, the separation spring 1147 is compressed when the first buckle 1130 is pushed into the second buckle 1140. When the electromagnet 1145 is energized to generate magnetic attraction to the magnetic plate 1144 to compress the spring, the separation spring 1147 in a compressed state ejects the push plate 1148, and then pushes the first buckle 1130 out of the second buckle 1140, so as to realize automatic and rapid separation of the first buckle 1130 and the second buckle 1140.

More specifically, referring to fig. 1-2, the large span prestressed concrete double T-plate hoisting device 1000 further includes a general wireless controller 1240 and a hook 1280. The total wireless controller 1240 is electrically connected with the leveling servo motor 1410, the distance adjusting servo motor 1700, the tightness servo motor 1900 and the electromagnet 1145 to realize separate control. The hook 1280 is fixedly attached to the bottom of the scissor jack 1230.

By adopting the technical scheme, the operation and control of the large-span prestressed concrete double-T-plate lifting device 1000 are more convenient and safer. The lifting hook 1280 is fixedly connected to the bottom of the scissor type expansion bracket 1230 and used for lifting the double-T plate to be lifted. When the hanging hook 1280 initially hangs the double-T plate to a certain height, the hanging belt 1100 is utilized for auxiliary hanging to improve the stability of the double-T plate hanging process.

The application has been described in detail hereinabove with reference to specific exemplary embodiments thereof. It will be understood that various modifications and changes may be made without departing from the scope of the application as defined by the appended claims. The detailed description and drawings are to be regarded in an illustrative rather than a restrictive sense, and if any such modifications and variations are desired to be included within the scope of the application described herein. Furthermore, the background art is intended to illustrate the state of the art and the meaning of the development and is not intended to limit the application or the field of application of the application.

More specifically, although exemplary embodiments of the present application have been described herein, the present application is not limited to these embodiments, but includes any and all embodiments that have been modified, omitted, e.g., combined, adapted, and/or substituted between the various embodiments, as would be recognized by those skilled in the art in light of the foregoing detailed description. The limitations in the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the foregoing detailed description or during the prosecution of the application, which examples are to be construed as non-exclusive. Any steps recited in any method or process claims may be executed in any order and are not limited to the order presented in the claims. The scope of the application should, therefore, be determined only by the appended claims and their legal equivalents, rather than by the descriptions and examples given above.

Claims (10)

1. A large span prestressed concrete double T-plate hoisting device, comprising:

the hanging strips are used for supporting the double T plates to be hoisted;

the mounting frame is used for fixing two ends of the hanging strip;

the hanging bracket is used for connecting hoisting equipment;

wherein the mounting frame is arranged between the hanging strip and the hanging frame; the hanging bracket is detachably connected to the mounting frame;

the method is characterized in that:

the double T-shaped plate hoisting device for the large-span prestressed concrete further comprises:

a frame connecting member having a bottom end connected to the mounting frame;

the top end of the frame connecting piece is movably connected with the hanging frame, so that the top end of the frame connecting piece is at least provided with a first adjusting position and a second adjusting position relative to the mounting frame.

2. The large-span prestressed concrete double-T-plate hoisting device of claim 1, wherein:

the top end of the frame connecting piece is in sliding connection with the hanging frame.

3. The large-span prestressed concrete double-T-plate hoisting device of claim 2, wherein:

the double T-shaped plate hoisting device for the large-span prestressed concrete further comprises:

a leveling servo motor mounted to the hanger;

the leveling motor shaft of the leveling servo motor is connected to the top end of the frame connecting piece to drive the top end of the frame connecting piece to slide relative to the hanging frame.

4. The large-span prestressed concrete double-T-plate hoisting device of claim 1, wherein:

the double T-shaped plate hoisting device for the large-span prestressed concrete further comprises:

the guide rod is fixedly connected to the hanging frame;

a leveling threaded pipe which is constructed in a pipe structure and the inner wall of which is provided with internal threads;

the leveling threaded column is arranged inside the leveling threaded pipe and is provided with external threads matched with the internal threads;

the leveling threaded column is provided with a guide groove with an open top end, and the guide rod is at least partially accommodated in the guide groove so that the leveling threaded column and the guide rod form sliding connection; the leveling threaded pipe and the hanging bracket form a rotary connection which can be driven by the leveling servo motor to rotate; the top end of the frame connector is secured to the leveling threaded post.

5. The large-span prestressed concrete double-T-plate hoisting device according to any one of claims 1 to 4, characterized in that:

the double T-shaped plate hoisting device for the large-span prestressed concrete further comprises:

the wheel sets comprise two belt pulleys which are correspondingly arranged to wind the two ends of the same sling;

the mounting frame includes:

an outer frame configured to have two longitudinal beams arranged in parallel and two cross beams arranged in parallel;

the sliding frames are connected with the outer frames in a sliding manner along the extending direction of the longitudinal beams;

the scissor type telescopic frame is characterized in that a scissor node is connected to the sliding frames so that one sliding frame drives the other sliding frames to slide when sliding;

wherein, both ends of the sliding frame are provided with rotating seats; the pulley is rotatably connected to the rotary seat.

6. The large-span prestressed concrete double-T-plate hoisting device of claim 5, wherein:

the double T-shaped plate hoisting device for the large-span prestressed concrete further comprises:

the driving screw rod is rotationally connected to the outer frame;

a distance-adjusting servo motor, wherein a distance-adjusting motor shaft of the distance-adjusting servo motor is connected to the driving screw rod so as to rotate the driving screw rod;

the driving nut is sleeved on the driving screw rod and connected with one of the sliding frames, so that the distance-adjusting servo motor drives the sliding frames to slide when driving the driving screw rod to rotate.

7. The large-span prestressed concrete double-T-plate hoisting device of claim 5, wherein:

the double T-shaped plate hoisting device for the large-span prestressed concrete further comprises:

the transmission shaft is in rotary connection with the outer frame;

and the tightness servo motor is connected with the transmission shaft by a tightness motor shaft so as to drive the belt wheel to rotate.

8. The large-span prestressed concrete double-T-plate hoisting device of claim 7, wherein:

wherein the pulleys in one of the wheel sets are arranged overlapping the pulleys in the other wheel set such that both pulleys have the same axis of rotation;

the drive shaft forms a rotation-stopping connection with all the pulleys having the same axis of rotation.

9. The large-span prestressed concrete double-T-plate hoisting device of claim 8, wherein:

the belt wheel is provided with a wheel hole which is sleeved on the transmission shaft and forms sliding connection with the transmission shaft.

10. The large-span prestressed concrete double-T-plate hoisting device according to any one of claims 1 to 4, characterized in that:

the harness includes:

a first belt body having one end connected to a first mounting position of the mounting frame;

a second belt body having one end connected to a second mounting position of the mounting frame;

the first buckle is arranged at the other end of the first belt body;

the second buckle is arranged at the other end of the second belt body;

the first buckle is detachably connected to the second buckle.