Safe and stable device of building construction hoist

Abstract

The invention relates to the technical field of building engineering lifters, in particular to a building construction lifter safety stabilizing device which comprises a base, a mounting plate is fixedly mounted at the top of the base, a lifter frame is fixedly mounted at the top of the mounting plate, and a locking mounting mechanism is slidably connected into the lifter frame. And a material frame is mounted on the inner side of the elevator frame through a locking mounting mechanism. According to the lifting machine, the double-shaft motor material frame climbs in the lifting machine frame, in the climbing process, the clamping plates and the right-angle locking grooves are of a special right triangle structure and are matched with the design of the springs, when the lifting machine climbs to a specific height every time, the clamping plates are pushed to be inserted into the clamping grooves through reset of the springs, solid support is provided for the bottom of the bearing plate, and meanwhile, the bearing plate is prevented from falling off. And a sliding plate in the mounting sliding groove and a supporting and fixing base in the supporting and fixing sliding groove cooperate with each other, it is guaranteed that the bearing plate stably slides in the elevator frame in an all-around mode, and the overall climbing stability is greatly improved.

Description

Technical Field

[0001] This application relates to the technical field of construction hoists, and particularly to a safety and stability device for construction hoists. Background Art

[0002] In modern construction projects, construction hoists, as the core mechanical equipment for vertical transportation of personnel and materials, play a crucial role. It encompasses various types, such as lifting operation platforms including fixed, mobile, rail-mounted, articulated boom, scissor lift, chain-type, and loading platforms, etc., which are widely used in rescue, decoration, and other scenarios, greatly improving construction efficiency and reducing labor intensity.

[0003] Chinese Patent Publication No. "CN220364336U" discloses a safety and stability device for construction hoists. This device realizes the climbing and descending of the ladder by a ball screw nut pair, uses an auxiliary transmission mechanism and screw nuts to stabilize both sides of the ladder, and also sets handrails to improve the safety of personnel during use.

[0004] However, in practical applications, such devices expose many problems that need to be solved urgently. On the one hand, there are obvious shortcomings in safety protection. During use, there is a lack of an effective safety locking structure as a whole. When the hoist encounters a power failure due to a malfunction, the conventional anti-fall safety protection measures relying on electronic components immediately fail, unable to provide reliable protection for personnel and goods, presenting major safety hazards. On the other hand, the device performs poorly in terms of subsequent maintenance convenience. It is difficult to remove the hoist material frame from the inside, which is extremely inconvenient in actual construction because different goods often need to be carried with material frames of different shapes and sizes, and there are difficulties in disassembling, assembling, and overhauling the material frame of this device, resulting in cumbersome and complex subsequent maintenance work, seriously affecting the construction progress and efficiency. In view of this, there is an urgent need to improve the design of existing construction hoists to make up for the above defects and enhance their safety and practicality. Summary of the Invention

[0005] In order to improve the safety and convenience during the application of the existing technology, this application provides a safety and stability device for construction hoists.

[0006] A safety and stability device for construction hoists provided by this application adopts the following technical solutions: It includes a base, an installation plate is fixedly installed on the top of the base, a hoist frame is fixedly installed on the top of the installation plate, a locking installation mechanism is slidably connected inside the hoist frame, a material frame is installed inside the hoist frame through the locking installation mechanism, a driving mechanism is fixedly installed on the back of the material frame, and the driving mechanism is in transmission connection with the hoist frame.

[0007] The locking and mounting mechanism includes a sliding group. A receiving plate is fixedly installed inside the sliding group. A driving group is provided at the bottom of the receiving plate. An elastic locking group is provided at the top of the driving group. Installation grooves are formed on both sides of the top of the receiving plate. A movable plate is slidably connected inside the installation grooves. The inner side of the elastic locking group is clamped with the movable plate. The top of the movable plate is connected to the bottom of the material frame.

[0008] Optionally, the sliding group includes installation sliding grooves, which are formed on both sides of the front and back of the elevator frame. A sliding plate is slidably connected inside the installation sliding grooves. A connecting frame is fixedly installed on the inner side of the sliding plate. The receiving plate is fixedly installed on the inner side of the connecting frame.

[0009] Optionally, support and fixation sliding grooves are formed in the middle of both sides inside the elevator frame. A support and fixation seat is slidably connected inside the support and fixation sliding grooves. A connecting seat is slidably connected inside the support and fixation seat. The inner side of the connecting seat is fixedly connected to the outer side of the material frame.

[0010] Optionally, the inner cross-sectional shapes of the installation sliding grooves and the installation grooves are both set to be convex-shaped. The overall cross-sectional shapes of the movable plate and the sliding plate are also both set to be convex-shaped. Wear-resistant gaskets are fixedly connected to the outer surfaces of the movable plate and the sliding plate.

[0011] Optionally, the elastic locking group includes a square groove, which is formed in the middle of the bottom of the receiving plate. A guide rail is fixedly connected in the middle of the square groove. Limit clamping members are fixedly connected to both ends inside the guide rail. An adjusting member is installed at the bottom of the limit clamping member. The bottom of the adjusting member is connected to the top of the driving group. The outer ends of the limit clamping members penetrate through the square groove and are clamped with the movable plate. A locking member is provided on the outer side of the limit clamping members.

[0012] Optionally, the limit clamping members include clamping grooves and telescopic springs. The telescopic springs are fixedly connected to both ends inside the guide rail. The clamping grooves are formed in the middle of the inner side of the movable plate. The outer ends of the telescopic springs are fixedly connected with clamping blocks. The clamping blocks are slidably connected inside the guide rail. The ends of the clamping blocks penetrate through the square groove and the receiving plate and are inserted into the clamping grooves.

[0013] Optionally, the adjusting member includes a turntable, which is rotatably connected to the middle of the bottom of the guide rail. A connecting rod is fixedly installed at the bottom of the turntable. A linkage rod is hinged to the outer end of the connecting rod. The outer end of the linkage rod is hinged to the inner end of the bottom of the clamping block. The bottom of the turntable is connected to the output end of the top of the driving group.

[0014] Optionally, the driving group includes a concave frame fixedly installed in the middle of the bottom of the receiving plate. In the middle of the inner side of the concave frame, a mounting disc is fixedly installed. In the middle of the bottom of the mounting disc, a driving motor is fixedly connected. The output end of the driving motor penetrates through the mounting disc and is fixedly connected to a shaft body, and the top of the shaft body is connected to the bottom of the turntable.

[0015] Optionally, the locking member includes a locking plate and a connecting frame. The connecting frame is fixedly installed on both sides of one end of the block close to the telescopic spring. The locking plate is fixedly installed on the front and rear sides inside the elevator frame. Right-angle locking grooves are linearly arranged at equal intervals on the inner side of the locking plate. A bottom plate is fixedly connected to the outer side of the connecting frame. A base frame is fixedly installed on the outer side of the bottom plate. Clamping plates are fixedly connected to the outer side of the base frame at equal intervals and linearly. The cross-sectional shapes of the clamping plates and the right-angle locking grooves are both set as right-angled triangles. The right-angled sides of the clamping plates and the right-angle locking grooves are both arranged at the bottom. Locking springs are fixedly connected to the inner side of the connecting frame at equal intervals along the L-shaped extension direction. The length range of the block inserted into the card slot is set to 5-10 cm, and the range of the clamping plate inserted into the right-angle locking groove is set to 2-5 cm.

[0016] Optionally, the driving mechanism includes a mounting seat and a rack. The mounting seat is fixedly installed in the middle of the back of the material box. A double-shaft motor is installed on the material box through the mounting seat. Gears are fixedly installed on both output ends of the double-shaft motor. The rack is fixedly connected to the rear ends of both sides of the elevator frame. The rack and the gear are meshed and connected. Support fixing sleeves are fixedly installed on both sides of the back of the material box. The shaft body part of the output end of the double-shaft motor is rotatably connected to the inside of the support fixing sleeve.

[0017] In summary, the present application includes the following beneficial technical effects:

[0018] 1. When the device operates, the double-shaft motor is started to drive the gear to mesh with the rack. By virtue of the rotation of the gear, the material box is reversely pushed to climb in the elevator frame. During the climbing process, the special right-angled triangle structure of the clamping plate and the right-angle locking groove plays a key role. As the material box rises, the inclined plane guides the clamping plate and the base frame to move inwards, compressing the telescopic spring and the locking spring. When the clamping plate retracts to a certain extent, it will move upwards and be clamped with the right-angle locking groove at the top. Every time it climbs a specific height, the spring resets and pushes the clamping plate into the card slot, providing a solid support for the bottom of the receiving plate. At the same time, the sliding plate in the installation chute and the support fixing seat in the support fixing chute cooperate with each other to ensure the smooth sliding of the receiving plate in the elevator frame in all directions, greatly improving the stability of the overall climbing.

[0019] 2. During the operation of the device, setting the fall locking function provides strong safety protection. Once a sudden power outage occurs, the reset forces accumulated in the telescopic spring and the locking spring are instantly released, pushing the base frame to drive the clamping plate to move outwards rapidly. The clamping plate precisely engages into the right-angle locking groove inside the locking plate, forming a firm locking state, effectively preventing the material frame from falling. This elaborate design enables the material frame to stay steadily inside the elevator frame even in extreme situations such as accidental power outages, avoiding losses caused by the falling of goods or triggering safety accidents, significantly enhancing the safety performance of the device, and adding a solid defense line for construction safety;

[0020] 3. The adoption of the elastic locking group greatly improves the convenience of disassembly, installation, and maintenance of the device. When it is necessary to lower the material frame, start the drive motor. The motor rotates to drive the shaft body, turntable, connecting rod, and linkage rod to work together, pulling the clamping block inwards, and then driving the clamping plate to disengage from the right-angle locking groove, successfully unlocking the locking structure. Subsequently, the dual-axis motor runs in reverse to drive the material frame to move downwards. If it is necessary to disassemble, install, or maintain the material frame or the drive mechanism, further operate the drive motor to completely disengage the clamping block from the clamping groove, and then the movable plate in the installation groove can be smoothly pulled out. The unique design of the support fixing chute, support fixing seat, and connecting seat not only facilitates the extraction of the connecting seat from the support fixing seat during disassembly and installation but also guides and limits the support fixing seat through the support fixing chute during the lifting and lowering of the material frame to ensure the stable sliding of the bearing plate. In addition, the multiple power supply methods of the dual-axis motor ensure its stable electrical connection when sliding and climbing in the installation chute, without affecting the normal operation and maintenance of the device, comprehensively improving the convenience of the device. Description of the Drawings

[0021] Figure 1 is the overall structure schematic diagram in the embodiment of the present application;

[0022] Figure 2 is the rear view structure schematic diagram in the embodiment of the present application;

[0023] Figure 3 is the top view structure schematic diagram in the embodiment of the present application;

[0024] Figure 4 is the rear view structure schematic diagram of the drive mechanism in the embodiment of the present application;

[0025] Figure 5 is the front view structure schematic diagram of the material frame in the embodiment of the present application;

[0026] Figure 6 is the structure schematic diagram of the locking installation mechanism in the embodiment of the present application;

[0027] Figure 7 is the top view structure schematic diagram of the disassembled state of the material frame in the embodiment of the present application;

[0028] Figure 8It is a schematic top view structure diagram of the frame splitting state in the embodiment of the present application;

[0029] Figure 9 It is a schematic internal structure diagram of the locking installation mechanism in the embodiment of the present application;

[0030] Figure 10 It is a schematic structure diagram of the separation state of the power group and the elastic locking group in the embodiment of the present application;

[0031] Figure 11 It is a schematic enlarged structure diagram of part A in 9 in the embodiment of the present application.

[0032] Reference numerals: 1, base; 2, mounting plate; 3, frame; 4, lift frame; 5, drive mechanism; 51, mounting seat; 52, rack; 53, dual-axis motor; 54, gear; 55, support fixing bushing; 6, locking installation mechanism; 61, sliding group; 611, installation chute; 612, sliding plate; 613, connecting frame; 614, support fixing chute; 615, support fixing seat; 616, connecting seat; 62, elastic locking group; 621, square groove; 622, guide rail;

[0033] 623, limit card; 6231, card slot; 6232, telescopic spring; 6233, block; 624, adjusting member;

[0034] 6241, turntable; 6242, connecting rod; 6243, linkage rod; 625, locking member; 6251, locking plate;

[0035] 6252, connecting frame; 6253, right-angle locking groove; 6254, bottom plate; 6255, base frame; 6256, clamping plate;

[0036] 6257, locking spring; 63, installation groove; 64, movable plate; 65, drive group; 651, concave frame; 652, mounting disc; 653, drive motor; 654, shaft body; 66, receiving plate. Detailed implementation manners

[0037] The following further Figures 1-11 describes the present application in detail with reference to the

[0038] An embodiment of the present application discloses a safety and stability device for a construction hoist. As Figures 1-8 shown, it includes a base 1, a mounting plate 2 is fixedly installed on the top of the base 1, a lift frame 4 is fixedly installed on the top of the mounting plate 2, a locking installation mechanism 6 is slidably connected inside the lift frame 4, a frame 3 is installed inside the lift frame 4 through the locking installation mechanism 6, a drive mechanism 5 is fixedly installed on the back of the frame 3, and the drive mechanism 5 is in transmission connection with the lift frame 4;

[0039] The locking installation mechanism 6 includes a sliding group 61, a receiving plate 66 is fixedly installed on the inner side of the sliding group 61, a driving group 65 is provided at the bottom of the receiving plate 66, an elastic locking group 62 is provided at the top of the driving group 65, mounting grooves 63 are provided on both sides of the top of the receiving plate 66, a movable plate 64 is slidably connected inside the mounting groove 63, the inner side of the elastic locking group 62 is snapped with the movable plate 64, the top of the movable plate 64 is connected to the bottom of the material frame 3, in this construction hoist safety and stability device, the base 1 provides a stable support for the entire device, and the mounting plate 2 at the top thereof further fixes the elevator frame 4, when the device is running, the material frame 3 is connected to the elevator frame 4 through the locking installation mechanism 6, and the sliding group 61 in the locking installation mechanism 6 enables the receiving plate 66 to be able to move in the elevator The frame 4 slides smoothly inside, and the driving group 65 is at the bottom of the receiving plate 66. It provides a power source for the movement of the receiving plate 66. The elastic locking group 62 is installed on the top of the driving group 65. During installation, the movable plate 64 can slide in the installation grooves 63 on both sides of the top of the receiving plate 66. The top of the movable plate 64 is connected to the bottom of the material frame 3. The inner side of the elastic locking group 62 is engaged with the movable plate 64, so as to achieve the installation and fixation of the material frame 3. The driving mechanism 5 installed on the back of the material frame 3 is connected to the elevator frame 4 in a transmission connection. When the driving mechanism 5 is started, it will drive the material frame 3 to perform a lifting movement in the elevator frame 4. During this process, the locking installation mechanism 6 works together to ensure the safety and stability of the operation of the material frame 3. For example, the elastic locking group 62 can lock the movable plate 64 when necessary to prevent the material frame 3 from accidentally sliding, thereby ensuring the stable operation of the device.

[0040] Please refer to Figures 5-9, the driving group 65 includes a concave frame 651 which is fixedly installed at the middle of the bottom of the receiving plate 66. An installation disk 652 is fixedly installed at the middle of the inner side of the concave frame 651. A driving motor 653 is fixedly connected to the middle of the bottom of the installation disk 652. The output end of the driving motor 653 penetrates through the installation disk 652 and is fixedly connected with a shaft body 654. The top of the shaft body 654 is connected to the bottom of the turntable 6241. The locking member 625 includes a locking plate 6251 and a connecting frame 6252. The connecting frame 6252 is fixedly installed on both sides of one end of the clamping block 6233 close to the telescopic spring 6232. The locking plate 6251 is fixedly installed on the front and rear sides inside the elevator frame 4. Right-angled locking grooves 6253 are arranged at equal intervals and linearly on the inner side of the locking plate 6251. A bottom plate 6254 is fixedly connected to the outer side of the connecting frame 6252. A base frame 6255 is fixedly installed on the outer side of the bottom plate 6254. Clamping plates 6256 are fixedly connected to the outer side of the base frame 6255 at equal intervals and linearly. The cross-sectional shapes of the clamping plates 6256 and the right-angled locking grooves 6253 are both set as right-angled triangles. The right-angled sides of the clamping plates 6256 and the right-angled locking grooves 6253 are both arranged at the bottom. Locking springs 6257 are fixedly connected to the inner side of the connecting frame 6252 at equal intervals along the L-shaped extension direction. The length range of the insertion of the clamping block 6233 into the clamping groove 6231 is set to be 5 - 10 cm. The range of the insertion of the clamping plate 6256 into the right-angled locking groove 6253 is set to be 2 - 5 cm. In the driving group 65 and the locking structure of this elevator, the concave frame 651 fixed at the middle of the bottom of the receiving plate 66 plays a key supporting role. The driving motor 653 at the bottom of the installation disk 652 in the middle of its inner side is the power core. After the driving motor 653 is started, the output end drives the shaft body 654 to rotate, and the shaft body 654 drives the turntable 6241 at the top to operate. When it is necessary to lock the material frame 3, the locking member 625 plays a role. The connecting frame 6252 is fixed on both sides of one end of the clamping block 6233 close to the telescopic spring 6232. As the turntable 6241 rotates, it drives the connected structures to move, prompting the clamping block 6233 to generate displacement. The locking plate 6251 is fixed on the front and rear sides inside the elevator frame 4, and the right-angled locking grooves 6253 are arranged at equal intervals on the inner side. The bottom plate 6254 connected to the outer side of the connecting frame 6252 drives the base frame 6255 to move, and the clamping plates 6256 on the outer side of the base frame 6255 act accordingly. Since the clamping plates 6256 and the right-angled locking grooves 6253 are both right-angled triangles and the right-angled sides are at the bottom, during the movement of the clamping plates 6256, the inclined surfaces interact with each other. When the clamping plates 6256 are inserted into the right-angled locking grooves 6253, the locking of the material frame 3 is realized. The locking springs 6257 on the inner side of the connecting frame 6252 can play a buffering and resetting role when the clamping plates 6256 move. And, the length range of the insertion of the clamping block 6233 into the clamping groove 6231 is 5 - 10 cm, and the range of the insertion of the clamping plate 6256 into the right-angled locking groove 6253 is 2 - 5 cm.Such dimensional settings ensure locking while guaranteeing the stability of structural installation.

[0041] Please refer to Figures 1-7 , the sliding group 61 includes an installation chute 611 which is opened on both the front and back sides of the elevator frame 4. The inner part of the installation chute 611 is slidably connected with a sliding plate 612. A connecting frame 613 is fixedly installed on the inner side of the sliding plate 612. The receiving plate 66 is fixedly installed on the inner side of the connecting frame 613. Support fixing chutes 614 are opened in the middle of both sides inside the elevator frame 4. A support fixing seat 615 is slidably connected in the support fixing chute 614. A connecting seat 616 is slidably connected to the inner side of the support fixing seat 615. The inner side of the connecting seat 616 is fixedly connected to the outer side of the material box 3. The inner cross-sectional shapes of the installation chute 611 and the installation groove 63 are both set as convex shapes. The overall cross-sectional shapes of the movable plate 64 and the sliding plate 612 are also both set as convex shapes. Wear-resistant gaskets are fixedly connected to the outer surfaces of the movable plate 64 and the sliding plate 612. In the sliding group 61 system of the construction hoist, installation chutes 611 are provided on both the front and back sides of the elevator frame 4, and their inner cross-sections are convex. The sliding plate 612 slides in the installation chute 611 with a matching convex cross-section. This special design can effectively prevent the sliding plate 612 from derailing or shifting during the sliding process. The inner side of the sliding plate 612 is firmly connected to the receiving plate 66 through the connecting frame 613, ensuring that the receiving plate 66 can move synchronously with the sliding plate 612 in the installation chute 611. At the same time, the support fixing chutes 614 in the middle of both sides inside the elevator frame 4 also provide key guiding and supporting functions for the internal structure. The support fixing seat 615 slides in the support fixing chute 614, and its inner side is slidably connected to the connecting seat 616. The connecting seat 616 is fixedly connected to the outer side of the material box 3, enabling the material box 3 to be effectively positioned and guided during the lifting process. Similarly, the installation groove 63 is similar to the installation chute 611 and also adopts a convex cross-section design. The movable plate 64 also has a matching convex cross-section and can slide therein, ensuring the stability of the movable plate 64 during movement in the installation groove 63. In addition, wear-resistant gaskets are fixedly installed on the outer surfaces of the movable plate 64 and the sliding plate 612. This can not only reduce the wear between them and the surrounding structures during long-term sliding, extend the service life of the components, but also reduce the jamming phenomenon caused by friction, further improving the smooth operation of the entire sliding group 61, enabling the material box 3 to complete the lifting action smoothly and efficiently within the elevator frame 4.

[0042] Please refer to Figure 2 and Figure 4, the driving mechanism 5 includes a mounting base 51 and a rack 52. The mounting base 51 is fixedly installed in the middle of the back surface of the material frame 3. The material frame 3 is equipped with a double-shaft motor 53 through the mounting base 51. Fixedly installed on both output ends of the double-shaft motor 53 are gears 54. The rack 52 is fixedly connected to the rear ends of both sides of the elevator frame 4. The rack 52 and the gears 54 are meshed and connected. Fixedly installed on both sides of the back surface of the material frame 3 are support sleeve 55. The shaft body 654 part of the output end of the double-shaft motor 53 is rotatably connected to the inside of the support sleeve 55. During the use of this device, when the double-shaft motor 53 starts to operate, its two output ends rotate synchronously, driving the gears 54 fixedly installed on the output ends to rotate at high speed. At the same time, the racks 52 fixedly connected to the rear ends of both sides of the elevator frame 4 are precisely meshed with the gears 54. Based on the meshing transmission principle of the gears 54 and the racks 52, the rotational motion of the gears 54 is converted into a linear motion, thereby driving the material frame 3 to move up and down along the elevator frame 4. During this process, the support sleeve 55 fixedly installed on both sides of the back surface of the material frame 3 plays an important role. The shaft body 654 part of the output end of the double-shaft motor 53 is rotatably connected to the inside of the support sleeve 55. The support sleeve 55 not only provides stable support for the shaft body 654, but also ensures the coaxiality of the shaft body 654 during rotation, enabling the power output by the double-shaft motor 53 to be stably and efficiently transmitted to the gears 54, and further ensuring that the material frame 3 can complete the lifting action smoothly and precisely within the elevator frame 4, realizing the vertical transportation of materials or personnel in building construction.

[0043] Please refer to Figures 6-11, the elastic locking group 62 includes a square groove 621 which is opened in the middle of the bottom of the bearing plate 66. A guide rail 622 is fixedly connected in the middle of the square groove 621. At both ends inside the guide rail 622, a limit clamping member 623 is fixedly connected. An adjusting member 624 is installed at the bottom of the limit clamping member 623. The bottom of the adjusting member 624 is connected to the top of the driving group 65. The outer end of the limit clamping member 623 penetrates through the square groove 621 and is clamped with the movable plate 64. A locking member 625 is arranged outside the limit clamping member 623. The limit clamping member 623 includes a clamping groove 6231 and a telescopic spring 6232. The telescopic spring 6232 is fixedly connected to both ends inside the guide rail 622. The clamping groove 6231 is opened in the middle of the inner side of the movable plate 64. The outer end of the telescopic spring 6232 is fixedly connected with a clamping block 6233. The clamping block 6233 is slidably connected inside the guide rail 622. The end of the clamping block 6233 penetrates through the square groove 621 and the bearing plate 66 and is inserted into the inside of the clamping groove 6231. The adjusting member 624 includes a turntable 6241 which is rotatably connected to the middle of the bottom of the guide rail 622. A connecting rod 6242 is fixedly installed at the bottom of the turntable 6241. The outer end of the connecting rod 6242 is hinged with a linkage rod 6243. The outer end of the linkage rod 6243 is hinged with the inner end of the bottom of the clamping block 6233. The bottom of the turntable 6241 is connected to the top output end of the driving group 65. The elastic locking group 62 plays a key role in locking and unlocking in the device. A guide rail 622 is arranged in the square groove 621 in the middle of the bottom of the bearing plate 66. The limit clamping members 623 at both ends of the guide rail 622 cooperate with the movable plate 64 to achieve locking. The telescopic spring 6232 in the limit clamping member 623 is fixed at both ends of the guide rail 622. The clamping block 6233 connected to its outer end can slide inside the guide rail 622. The end of the clamping block 6233 penetrates through the square groove 621 and the bearing plate 66 and is inserted into the clamping groove 6231 on the inner side of the movable plate 64, thus locking the movable plate 64. When unlocking is needed, the top output end of the driving group 65 drives the turntable 6241 to rotate. The connecting rod 6242 at the bottom of the turntable 6241 moves accordingly. The clamping block 6233 is pulled to contract through the hinged linkage rod 6243, so that the clamping block 6233 disengages from the clamping groove 6231, releasing the locking of the movable plate 64. At the same time, the adjusting member 624 installed at the bottom of the limit clamping members 623 at both ends of the guide rail 622 can control the movement range of the clamping block 6233 to ensure its accurate engagement or separation with the clamping groove 6231. In this process, the guide rail 622 provides a stable sliding path for the clamping block 6233, while the telescopic spring 6232 provides the necessary elastic force when the clamping block 6233 is inserted into the clamping groove 6231 to ensure the reliability of locking. The entire elastic locking group 62 realizes the flexible locking and unlocking of the movable plate 64 through the drive of the driving group 65.

[0044] The implementation principle of a safety and stability device for a construction hoist in an embodiment of the present application is as follows: During the operation of the device, when the dual-axis motor 53 is started, the dual-axis motor 53 transmits power to the connected gear 54. Since the gear 54 is in meshed connection with the rack 52, as the dual-axis motor 53 continuously outputs power, the gear 54 starts to rotate. According to the transmission principle of the gear 54 and the rack 52, the rotation of the gear 54 will push the material box 3 to climb inside the hoist frame 4 in the reverse direction, thereby completing the adjustment of the height of the material box 3 and enabling it to slide upward;

[0045] It should be noted that during the upward sliding process of the material box 3, the unique clamping plate 6256 and right-angle locking groove 6253 structures of the device play a key role. Both the clamping plate 6256 and the right-angle locking groove 6253 are designed as right-angled triangles, and the right-angle sides of both are at the bottom and the inclined surfaces are at the top. When the dual-axis motor 53 drives the material box 3 to climb, the inclined surface of the clamping plate 6256 slides along the inclined surface of the right-angle locking groove 6253. During this process, the inclined surface guiding action generates a reaction force that reversely squeezes the clamping plate 6256 and the connected base frame 6255 to move inward. The inward movement of the base frame 6255 further squeezes the connecting frame 6252, causing the connecting frame 6252 to contract. At the same time, the telescopic spring 6232 and the locking spring 6257 are squeezed and in a compressed state. When the clamping plate 6256 contracts to a certain extent, under the combined action of the spring force and the mechanism movement, the clamping plate 6256 starts to move upward until it is clamped with the right-angle locking groove 6253 at the top;

[0046] During the continuous upward movement of the material box 3, every time it rises by a specific height, the telescopic spring 6232 and the locking spring 6257 will reset. Their reset force pushes the clamping plate 6256 into the corresponding card slot 6231. The clamping plate 6256 and the card slot 6231 are mutually clamped and limited, thereby forming a stable support for the bottom of the bearing plate 66. This limiting structure of the clamping plate 6256 and the card slot 6231 can effectively play the role of stable support during the actual application of the device, greatly improving the stability of the overall operation of the equipment.

[0047] Particularly importantly, even in the event of a sudden power outage during the operation of the device, the telescopic spring 6232 and the locking spring 6257, by virtue of their reset characteristics, can push the base frame 6255 to drive the clamping plate 6256 to move outwards, accurately snap into the inner sides of the respective right-angle locking grooves 6253 on the inner side of the locking plate 6251. This design enables the material frame 3 to stay stably inside the elevator frame 4, ensuring the stability of the overall lifting process and effectively avoiding the risk of goods falling caused by power outages. In addition, during the sliding of the material frame 3, the sliding plate 612 slidably connected inside the installation chute 611 and the support seat 615 slidably connected inside the support fixing chute 614 cooperate with each other to provide strong guarantee for the smooth movement of the bearing plate 66, enabling the bearing plate 66 to move stably inside the elevator frame 4;

[0048] The elastic locking group 62 provided in this device endows unique advantages for the operation flexibility and maintenance convenience of the device. When it is necessary to lower the material frame 3, by starting the driving motor 653, the driving motor 653 starts to operate, and its output shaft drives the shaft body 654 at the top to rotate. The rotation of the shaft body 654 further drives the connected turntable 6241 to rotate. The rotation of the turntable 6241 drives the connecting rod 6242 and the linkage rod 6243 to perform rotational motion through mechanical connection. The rotation of the connecting rod 6242 and the linkage rod 6243 synchronously pulls the clamping block 6233 to move inwards. During the inward movement of the clamping block 6233, the connecting frame 6252 on its outer side will also be driven to move inwards synchronously. The inward movement of the connecting frame 6252 will pull the bottom plate 6254 to move inwards. The inward movement of the bottom plate 6254 finally realizes the pulling of the base frame 6255 and the clamping plate 6256, causing the clamping plate 6256 to move inwards;

[0049] It should be noted that the length of the clamping plate 6256 inserted into the inner side of the locking groove is only half of the length of the clamping block 6233 inserted into the card slot 6231. Based on this special design, when the clamping block 6233 has not completely disengaged from the card slot 6231, the clamping plate 6256 has already disengaged from the inside of the right-angle locking groove 6253, which can maintain the stability of the installation of the bearing plate 66 after unlocking. At this time, the locking structure is unlocked. Subsequently, start the double-shaft motor 53 to run reversely. The reverse operation of the double-shaft motor 53 drives the gear 54 and the rack 52 to perform reverse meshing transmission, thereby driving the material frame 3 to move downwards.

[0050] When it is necessary to disassemble and repair the material frame 3 or the drive mechanism 5, the drive motor 653 can be further started. The continuous operation of the drive motor 653 drives the turntable 6241 to further rotate, and then through the linkage of the connecting rod 6242 and the linkage rod 6243, the clamping block 6233 is further pulled until the clamping block 6233 completely disengages from the inside of the clamping groove 6231. After the clamping block 6233 is separated from the clamping groove 6231, the movable plate 64 inside the installation groove 63 can be smoothly pulled out, realizing the rapid disassembly and repair of the elevator material frame 3 and the drive mechanism 5.

[0051] Before the device is applied, the support fixing seat 615 is slidably connected inside the support fixing chute 614, and the connecting seat 616 is slidably connected horizontally inside the support fixing seat 615. Among them, the support fixing chute 614 is responsible for longitudinal sliding guidance, and the support fixing seat 615 and the connecting seat 616 undertake the horizontal sliding function. This design enables the connecting seat 616 to be smoothly pulled out from the inside of the support fixing seat 615 during the disassembly and assembly process, greatly maintaining the convenience of disassembly and assembly of the device. At the same time, during the lifting process of the material frame 3, the support fixing seat 615 slides inside the support fixing chute 614, and the support fixing chute 614 plays a guiding and limiting role for the support fixing seat 615, further enhancing the support effect on the bearing plate 66 and enabling the bearing plate 66 to slide up and down more stably;

[0052] From the perspective of power supply, the dual-axis motor 53 of this device can adopt different power supply methods according to specific construction application scenarios, and can adopt sliding contact wire power supply, wireless power supply, drag chain cable power supply or battery power supply. The sliding contact wire power supply ensures reliable electrical connection during the stable sliding and climbing process of the motor in the installation chute 611 through the cooperation of the sliding contact wire and the current collector; wireless power supply uses advanced wireless energy transmission technology to break through the limitations of traditional wire connections and also ensures the power supply for motor operation; the drag chain cable power supply effectively protects the cable through the drag chain, enabling the cable to flexibly stretch and contract following the movement of the motor and providing stable power for the motor; battery power supply provides an independent power source for the motor, especially suitable for some scenarios with high requirements for power supply flexibility. No matter which power supply method is adopted, it can ensure that the dual-axis motor 53 maintains a stable electrical connection while stably sliding and climbing in the installation chute 611 and ensure the normal operation of the device. The above several power supply methods are all existing technologies for flashlights, so they will not be elaborated here. To sum up, during the overall application of this device, it not only has excellent safety and stability performance, can ensure the stable lifting of the material frame 3 under various working conditions, and avoid safety accidents such as the falling of goods, but also performs well in terms of convenient maintenance. Through the unique elastic locking group 62 design, the rapid disassembly and repair of the material frame 3 and the drive mechanism 5 are realized, significantly improving the convenience during the overall use of the device and meeting the requirements for efficient and safe equipment in fields such as construction;

[0053] This device adopts a dual-axis motor 53 drive system, configured with a YE3-132S-4 motor (power 5.5kW, speed 1440r / min). It realizes vertical transmission through a high-precision gear 54 and rack 52 pair with a module of 4 and 24 teeth. The contact stress is controlled below 850MPa, and the transmission efficiency reaches 92%. The spring energy storage system consists of a telescopic spring 6232 with a stiffness of 200N / mm and a locking spring 6257 with a stiffness of 150N / mm. The total energy storage capacity is 350J. When powered off, it can drive the clamping plate 6256 to generate an interference fit of 0.3 - 0.5mm. The clamping plate 6256 is made of 40Cr quenched and tempered steel (hardness HRC45), with a length of 180mm and a thickness of 8mm, and forms a dynamic lock with a right-angle locking groove 6253 with a depth of 30mm and an angle of 90°±0.5°. The guiding system includes an installation chute 611 with a guiding accuracy of ±0.05mm and a supporting and fixing chute 614 with a straightness of 0.02mm / m, which cooperate with the sliding plate 612 and the supporting and fixing seat 615 to ensure the operation stability;

[0054] The elastic locking group 62 selects a 57HS11 type stepping motor (torque 1.2N·m), which can drive the turntable 6241 to rotate through a 1:5 planetary reducer, and realizes precise unlocking in cooperation with a GCr15 bearing steel block 6233 (hardness HRC60). The key structural materials include a Q345B base frame 6255, a 6061-T6 aluminum alloy turntable 6241, and a 304 stainless steel guiding groove. The device has a wide temperature range adaptability from -40°C to +70°C. After 5000 cycle tests, the performance retention rate is ≥95%, and the impact load resistance reaches 150g (equivalent to 5000kgf), meeting the safety standards of GB / T26558-2021 and EN81-20:2014. The specific parameter values in the above materials can be adapted and changed according to the size and specifications of the equipment, mainly based on the application specifications of the equipment.

[0055] The above are all the preferred embodiments of this application. It does not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A safety and stability device for a construction hoist, characterized in that; The invention comprises a base (1), a mounting plate (2) is fixedly mounted on the top of the base (1), a lift frame (4) is fixedly mounted on the top of the mounting plate (2), a locking mounting mechanism (6) is slidably connected inside the lift frame (4), a material frame (3) is mounted on the inner side of the lift frame (4) via the locking mounting mechanism (6), a driving mechanism (5) is fixedly mounted on the back side of the material frame (3), and the driving mechanism (5) is transmission-connected to the lift frame (4); The locking installation mechanism (6) comprises a sliding group (61), a receiving plate (66) is fixedly installed on the inner side of the sliding group (61), a driving group (65) is provided at the bottom of the receiving plate (66), an elastic locking group (62) is provided at the top of the driving group (65), mounting grooves (63) are provided on both sides of the top of the receiving plate (66), a movable plate (64) is slidably connected inside the mounting groove (63), the inner side of the elastic locking group (62) is snap-connected with the movable plate (64), and the top of the movable plate (64) is connected to the bottom of the material frame (3).

2. A safety and stability device for a construction hoist according to claim 1, characterized in that: The sliding group (61) includes an installation slide groove (611), and the installation slide groove (611) is opened on both sides of the front and back of the elevator frame (4). The interior of the installation slide groove (611) is slidably connected with a sliding plate (612), and a connecting frame (613) is fixedly installed on the inner side of the sliding plate (612), and the receiving plate (66) is fixedly installed on the inner side of the connecting frame (613).

3. A safety and stability device for a construction hoist according to claim 2, characterized in that: A supporting slide groove (614) is provided in the middle of both sides of the interior of the elevator frame (4), and the interior of the supporting slide groove (614) is slidably connected to a supporting seat (615), and the inner side of the supporting seat (615) is slidably connected to a connecting seat (616), and the inner side of the connecting seat (616) is fixedly connected to the outer side of the material frame (3).

4. A safety and stability device for a construction hoist according to claim 3, characterized in that: The internal cross-sectional shapes of the installation slide groove (611) and the installation groove (63) are both set to be convex shapes, the overall cross-sectional shapes of the movable plate (64) and the sliding plate (612) are also set to be convex shapes, and the outer surfaces of the movable plate (64) and the sliding plate (612) are fixedly connected with wear-resistant gaskets.

5. A safety and stability device for a construction hoist according to claim 1, characterized in that: The elastic locking group (62) comprises a square groove (621), wherein the square groove (621) is arranged in the middle of the bottom of the receiving plate (66), a guide rail (622) is fixedly connected in the middle of the square groove (621), both ends of the inside of the guide rail (622) are fixedly connected to a limit clamp (623), an adjusting member (624) is installed at the bottom of the limit clamp (623), the bottom of the adjusting member (624) is connected to the top of the driving group (65), the outer end of the limit clamp (623) passes through the square groove (621) and is clamped with the movable plate (64), and a locking member (625) is provided on the outer side of the limit clamp (623).

6. A safety and stability device for a construction hoist according to claim 5, characterized in that: The limit clamp (623) comprises a clamping slot (6231) and a telescopic spring (6232), wherein the telescopic spring (6232) is fixedly connected to the two ends inside the guide rail (622), the clamping slot (6231) is arranged in the middle of the inner side of the movable plate (64), the outer end of the telescopic spring (6232) is fixedly connected to a clamping block (6233), the clamping block (6233) is slidably connected to the inside of the guide rail (622), and the end of the clamping block (6233) passes through the square groove (621) and the receiving plate (66) and is inserted into the inside of the clamping slot (6231).

7. A safety and stability device for a construction hoist according to claim 6, characterized in that: The adjusting member (624) comprises a rotating disk (6241), wherein the rotating disk (6241) is rotatably connected to the middle of the bottom of the guide rail (622), a connecting rod (6242) is fixedly installed at the bottom of the rotating disk (6241), a linkage rod (6243) is hinged at the outer end of the connecting rod (6242), the outer end of the linkage rod (6243) is hinged to the inner end of the bottom of the block (6233), and the bottom of the rotating disk (6241) is connected to the top output end of the driving group (65).

8. A safety and stability device for a construction hoist according to claim 7, characterized in that: The driving group (65) comprises a concave frame (651), wherein the concave frame (651) is fixedly mounted in the middle of the bottom of the receiving plate (66), a mounting plate (652) is fixedly mounted in the middle of the inner side of the concave frame (651), a driving motor (653) is fixedly connected in the middle of the bottom of the mounting plate (652), an output end of the driving motor (653) passes through the mounting plate (652) and is fixedly connected to a shaft (654), and the top of the shaft (654) is connected to the bottom of the rotating disk (6241).

9. A safety and stability device for a construction hoist according to claim 8, characterized in that: The locking member (625) comprises a locking plate (6251) and a connecting frame (6252), wherein the connecting frame (6252) is fixedly mounted on both sides of one end of the block (6233) close to the telescopic spring (6232), the locking plate (6251) is fixedly mounted on the front and rear sides of the interior of the elevator frame (4), the inner side of the locking plate (6251) is provided with right-angle locking grooves (6253) arranged linearly at equal intervals, the outer side of the connecting frame (6252) is fixedly connected to a bottom plate (6254), the outer side of the bottom plate (6254) is fixedly mounted with a base frame (6255), and the base frame (6255) is fixedly mounted on the outer side of the base plate (6254). A card plate (6256) is fixedly connected at equal intervals and arranged linearly on the outside, the cross-sectional shape of the card plate (6256) and the right-angle locking groove (6253) are both set to be a right-angled triangle, the right-angled sides of the card plate (6256) and the right-angled locking groove (6253) are both set at the bottom, and locking springs (6257) are fixedly connected at equal intervals on the inner side of the connecting frame (6252) along the L-shaped extension direction, the length range of the card block (6233) inserted into the card groove (6231) is set to 5-10CM, and the range of the card plate (6256) inserted into the right-angled locking groove (6253) is set to 2-5CM.

10. A safety and stability device for a construction hoist according to claim 1, characterized in that: The driving mechanism (5) comprises a mounting seat (51) and a rack (52), wherein the mounting seat (51) is fixedly mounted in the middle of the back side of the material frame (3), and the material frame (3) is mounted with a double-axis motor (53) via the mounting seat (51), and gears (54) are fixedly mounted on both side output ends of the double-axis motor (53), and the rack (52) is fixedly connected to both side rear ends of the elevator frame (4), and the rack (52) and the gear (54) are meshingly connected, and supporting shaft sleeves (55) are fixedly mounted on both sides of the back side of the material frame (3), and the output end shaft body (654) of the double-axis motor (53) is rotatably connected to the inside of the supporting shaft sleeve (55).

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