Hoisting equipment for building construction
By designing protection, anti-fall and buffering devices in lifting equipment for construction, the problem of materials shaking and falling in high altitudes is solved, the construction efficiency and safety are improved, and it is suitable for material transportation of different sizes.
Patent Information
- Application Number
- CN202411258548.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2024-12-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During construction, lifting equipment causes building materials to shake and fall in high altitude, causing losses to personnel and property.
A lifting equipment for construction including protection devices, fall-proof devices and buffer devices is designed, through components such as steel cables, guide wheels, hooks, limit rings, sponge suction cups, air pumps, electric push rods, non-Newtonian fluids, etc. Prevent material from shaking and falling, ensuring safety and stability.
It effectively prevents the material from shaking and falling during lifting and transportation, improves work efficiency, safety and applicability, ensures the safe transportation of materials of different sizes, and maintains the stability and practicality of the device.
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Figure CN119100284A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of building construction, in particular to a hoisting device for building construction. Background Art
[0002] Lifting equipment used in construction refers to mechanical equipment used to lift, transport and install various building materials, components and equipment on construction sites.
[0003] The patent with the patent announcement number CN217627069U relates to a steel structure hoisting equipment for prefabricated building construction, which relates to the field of building construction technology, including a base, a support plate welded to the top center of the base, and a reinforcing rod is arranged between the support plate and the base, a fixed pulley is movably installed on the inner upper side of the support plate, and a first electric push rod is connected to the upper left side of the support plate, the left end of the first electric push rod is connected to a U-shaped frame, and the inner side of the U-shaped frame is movably connected to a roller, a steel cable is arranged outside the fixed pulley, the left end of the steel cable is connected to a second electromagnet, and the right end of the steel cable is connected to a winch. In this patent, the U-shaped frame is driven to move to the left by the first electric push rod, so that the distance between the roller and the support plate can be adjusted, thereby adjusting the distance between the second electromagnet and the support plate, which can effectively prevent the steel adsorbed by the bottom of the second electromagnet from colliding with the support plate during the rising process, and will not damage the steel.
[0004] In the above patent, the U-shaped frame is driven to move to the left by the first electric push rod, so that the distance between the roller and the support plate can be adjusted, thereby adjusting the distance between the second electromagnet and the support plate, which can effectively prevent the steel adsorbed by the bottom of the second electromagnet from colliding with the support plate during the rising process and will not damage the steel. However, when the construction materials are transported, the materials will shake due to the movement of the hook, making it easy for the materials to fall from high altitudes, causing loss of life and property. Summary of the invention
[0005] In view of the deficiencies in the prior art, the present invention provides a hoisting device for construction, which solves the problems raised in the above-mentioned background technology.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A hoisting device for construction, comprising a construction vehicle, a support column is fixedly installed at the bottom of the construction vehicle, a safety ladder is fixedly installed on the surface of the construction vehicle, a boom is rotatably installed on the top of the construction vehicle, a hydraulic rod is arranged on the top of the construction vehicle, and a protective device, an anti-falling device and a buffer device are arranged at the bottom of the output end of the boom; The protection device includes: a steel cable, a triangular plate, a guide wheel, a rotating shaft, a hook, a limit rod, a limit ring and a transmission rod. The steel cable is slidably mounted on the output end surface of the boom, the guide wheel is slidably mounted on the surface of the steel cable, the triangular plate is fixedly mounted on the surface of the guide wheel, the rotating shaft is rotatably mounted between the guide wheels, the hook is fixedly mounted on the circumferential surface of the rotating shaft, the limit rod is fixedly mounted on the circumferential surface of the rotating shaft, the limit ring is slidably mounted on a side of the triangular plate close to the rotating shaft, one end of the transmission rod is fixedly mounted on the surface of the hook, and the other end of the transmission rod is fixedly mounted on a side of the limit ring close to the rotating shaft. The movement of the hook will drive the movement of the transmission rod, the movement of the transmission rod will drive the movement of the limit ring, the movement of the limit ring will contact the limit rod, and the limit ring will limit the limit rod after contacting the limit rod, so that the rotating shaft cannot rotate after the hook lifts the material.
[0007] According to the above technical solution, a fixing piece is provided between the triangular plates, the limiting ring is in contact with the limiting rod, and the triangular plates are fixed by the fixing piece.
[0008] According to the above technical scheme, the anti-falling device includes: a sponge suction cup, an air pump, an electric push rod, a fixed block, a screw rod, a rotating rod, a steel cable, a protective rod and a ring. The sponge suction cup is fixedly installed on the inner wall of the hook, the air pump is fixedly installed on the top of the sponge suction cup, the electric push rod is fixedly installed on the top of the sponge suction cup, the fixed block is fixedly installed on the surface of the sponge suction cup, the screw rod is fixedly installed between the fixed blocks, the rotating rod is rotatably installed on the circumferential surface of the screw rod, one end of the steel cable is fixedly installed on the output end of the electric push rod, the other end of the steel cable is fixedly installed on the surface of the rotating rod, the protective rod is inserted into the inner wall of the rotating rod, and the ring is fixedly installed on the surface of the rotating rod. The output end of the electric push rod will drive the steel cable to move, and the steel cable will release the limit on the rotating rod after moving. After the rotating rod loses the limit, it will reset through the clockwork spring to drive the ring to rotate, the rotation of the ring will drive the rotating rod to rotate, and the rotation of the rotating rod will drive the protective rod to rotate toward the bottom, and the protective rod will rotate to the bottom of the building material.
[0009] According to the above technical solution, a clockwork spring is arranged between the circular ring and the fixed block, a positioning hole is opened on the surface of the rotating rod, and an adjustment hole is opened on the surface of the protective rod, and the clockwork spring drives the circular ring to reset.
[0010] According to the above technical solution, the anti-falling device also includes: a limit block, a spring and a No. 1 spring. The limit block is arranged on the top of the rotating rod, and the spring is fixedly installed on the bottom of the limit block. The No. 1 spring is arranged between the springs to squeeze the springs. The springs will be deformed after being squeezed. After the springs are deformed, the limit block is inserted into the fixing hole. After the spring completely passes through the positioning hole, the spring is reset by the No. 1 spring.
[0011] According to the above technical solution, the spring sheet is arranged between the positioning hole and the adjusting hole, a sliding hole is opened on the surface of the protection rod, and the protection rod is adjusted through the adjusting hole and the positioning hole.
[0012] According to the above technical scheme, the buffer device includes: a hollow cylinder, a piston, a transmission rod, a suction cup, a positioning block and a bottle stopper, the hollow cylinder is fixedly installed on the side of the protection rod away from the screw rod, the piston is slidably installed on the inner wall of the hollow cylinder, the transmission rod penetrates and is slidably installed on the surface of the protection rod, one end of the transmission rod is fixedly installed on the side of the piston close to the protection rod, the suction cup is fixedly installed on the other end of the transmission rod, the positioning block is fixedly installed on the surface of the hollow cylinder, and the bottle stopper is rotatably installed on the surface of the positioning block, the rotation of the transmission rod will drive the suction cup to rotate, the rotation of the suction cup will be close to the bottom of the building material, when the building material falls, the falling of the building material will push the suction cup to move, the movement of the suction cup will drive the transmission rod to move, and the movement of the transmission rod will drive the piston to move.
[0013] According to the above technical solution, a No. 2 spring is arranged between the piston and the hollow cylinder, a flow hole is opened on the surface of the piston, and a non-Newtonian fluid is arranged inside the hollow cylinder. The No. 2 spring drives the shrapnel piston to reset.
[0014] The present invention provides a hoisting device for construction, which has the following beneficial effects: (1) The invention drives the guide wheel and the hook to move by means of a steel cable. The movement of the hook will lift the building materials, so that the building materials can be quickly transported, saving transportation time and improving work efficiency. After the hook lifts the building materials, the limit ring will limit the limit rod, so that the shaft cannot rotate to prevent the building materials from shaking due to the movement of the hook during transportation, causing the materials to fall from a high altitude, thereby reducing the loss of life and property.
[0015] (2) The invention drives the rotating rod to rotate by means of an electric push rod, and the rotation of the rotating rod drives the protection rod to rotate. The protection rod will rotate to the bottom of the building materials. When the building materials fall due to being too heavy, the building materials will fall to the top of the protection rod, preventing the building materials from falling directly to the ground and causing loss of life and property, thereby improving the safety of the device. The spring sheet is squeezed, deformed, and inserted into the positioning hole, so that the position of the protection rod can be adjusted before transportation, so that when facing building materials of different sizes, they can be protected from falling, thereby improving the applicability of the device.
[0016] (3) This invention uses the falling building materials to push the suction cup, which drives the piston to move. The piston can only move slowly due to the influence of the non-Newtonian fluid, so that when the building materials fall, they will only fall slowly, preventing the building materials from falling directly on the surface of the protective rod and being damaged, thereby improving safety and practicality. After turning the bottle stopper, the flow port will be opened, and the non-Newtonian fluid in the hollow cylinder can be replaced, preventing the non-Newtonian fluid from losing its physical properties over time and failing to achieve a buffering effect, thereby improving the stability and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structural relationship between the position of the steel cable and the boom of the present invention; Figure 3 It is a schematic diagram of the structure of the protection device of the present invention; Figure 4 This is a schematic diagram of the positional relationship between the air pump and the sponge suction cup of the present invention; Figure 5 It is a schematic diagram of the structure of the anti-falling device of the present invention; Figure 6 It is a schematic diagram of the structure of the spring piece and the limit block of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the buffer device of the present invention.
[0018] In the figure: 1. construction vehicle; 2. support column; 3. safety ladder; 4. boom; 5. hydraulic rod; 61. steel cable; 62. triangle plate; 63. guide wheel; 64. rotating shaft; 65. hook; 66. limit rod; 67. limit ring; 68. transmission rod; 71. sponge suction cup; 72. air pump; 73. electric push rod; 74. fixing block; 75. screw rod; 76. rotating rod; 77. steel cable; 78. protection rod; 79. ring; 710. clockwork spring; 711. limit block; 712. shrapnel; 713. spring No. 1; 81. hollow cylinder; 82. piston; 83. transmission rod; 84. suction cup; 85. spring No. 2; 86. positioning block; 87. bottle stopper. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] See also Figure 1-Figure 3One embodiment of the present invention is: a hoisting device for construction, comprising a construction vehicle 1, a support column 2 is fixedly installed at the bottom of the construction vehicle 1, a safety ladder 3 is fixedly installed on the surface of the construction vehicle 1, a boom 4 is rotatably installed on the top of the construction vehicle 1, a hydraulic rod 5 is arranged on the top of the construction vehicle 1, and a protective device is arranged at the bottom of the output end of the boom 4; The protective device includes: a steel cable 61, a triangular plate 62, a guide wheel 63, a rotating shaft 64, a hook 65, a limiting rod 66, a limiting ring 67 and a transmission rod 68. The steel cable 61 is slidably mounted on the output end surface of the boom 4, the guide wheel 63 is slidably mounted on the surface of the steel cable 61, the triangular plate 62 is fixedly mounted on the surface of the guide wheel 63, the rotating shaft 64 is rotatably mounted between the guide wheels 63, the hook 65 is fixedly mounted on the circumferential surface of the rotating shaft 64, the building materials can be quickly transported, the transportation time is saved, and the work efficiency is improved, the limiting rod 66 is fixedly mounted on the circumferential surface of the rotating shaft 64, the limiting ring 67 is slidably mounted on a side of the triangular plate 62 close to the rotating shaft 64, one end of the transmission rod 68 is fixedly mounted on the surface of the hook 65, and the other end of the transmission rod 68 is fixedly mounted on a side of the limiting ring 67 close to the rotating shaft 64, to prevent the building materials from shaking due to the movement of the hook 65 during transportation, causing the materials to fall from high altitude, thereby reducing the loss of personnel and property.
[0021] A fixing piece is provided between the triangular plates 62 , and the limiting ring 67 is in contact with the limiting rod 66 , and the triangular plates 62 are fixed by the fixing piece.
[0022] When this embodiment is working: the construction vehicle 1 is driven to the work site, and then the support column 2 is lowered, and the hydraulic rod 5 is started. The output end of the hydraulic rod 5 drives the boom 4 to adjust to the required angle and height, and then the output end of the boom 4 moves toward the top. The movement of the output end of the boom 4 drives the steel cable 61 to move, and the movement of the steel cable 61 drives the guide wheel 63 to move. The movement of the guide wheel 63 drives the triangular plate 62 to move, and the movement of the triangular plate 62 drives the rotating shaft 64 to move. The movement of the rotating shaft 64 drives the hook 65 to move. The movement of the hook 65 will lift the building materials, so that the building materials can be quickly transported, saving transportation. The time is saved and the work efficiency is improved. After the hook 65 lifts the building materials, the hook 65 is affected by the weight of the building materials and moves toward the bottom. The movement of the hook 65 drives the transmission rod 68 to move. The movement of the transmission rod 68 drives the limit ring 67 to move. The movement of the limit ring 67 contacts the limit rod 66. After the limit ring 67 contacts the limit rod 66, it limits the limit rod 66, so that the rotating shaft 64 cannot rotate after the hook 65 lifts the materials, so as to prevent the materials from shaking due to the movement of the hook 65 during transportation, causing the materials to fall from high altitude, thereby reducing the loss of personnel and property.
[0023] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, an anti-falling device and a buffer device are arranged at the bottom of the output end of the boom 4, wherein the anti-falling device comprises: a sponge suction cup 71, an air pump 72, an electric push rod 73, a fixing block 74, a screw rod 75, a rotating rod 76, a steel cable 77, a protection rod 78 and a ring 79, the sponge suction cup 71 is fixedly mounted on the inner wall of the hook 65, the air pump 72 is fixedly mounted on the top of the sponge suction cup 71, the electric push rod 73 is fixedly mounted on the top of the sponge suction cup 71, and the fixing block 74 is fixedly mounted on the sponge suction cup 71. The screw rod 75 is fixedly mounted between the fixed blocks 74, the rotating rod 76 is rotatably mounted on the circumferential surface of the screw rod 75, one end of the steel cable 77 is fixedly mounted on the output end of the electric push rod 73, and the other end of the steel cable 77 is fixedly mounted on the surface of the rotating rod 76, the protective rod 78 is inserted into the inner wall of the rotating rod 76, and the ring 79 is fixedly mounted on the surface of the rotating rod 76. When the building materials fall due to being too heavy, the building materials will fall to the top of the protective rod 78 to prevent the building materials from falling directly to the ground and causing personal and property losses, thereby improving the safety of the device.
[0024] A spring 710 is provided between the circular ring 79 and the fixing block 74 , a positioning hole is provided on the surface of the rotating rod 76 , and an adjustment hole is provided on the surface of the protection rod 78 . The spring 710 drives the circular ring 79 to reset.
[0025] The anti-falling device also includes: a limit block 711, a spring 712 and a No. 1 spring 713. The limit block 711 is arranged on the top of the rotating rod 76, the spring 712 is fixedly installed on the bottom of the limit block 711, and the No. 1 spring 713 is arranged between the springs 712, so that when facing building materials of different sizes, they can be protected from falling, thereby improving the applicability of the device.
[0026] The spring piece 712 is arranged between the positioning hole and the adjustment hole. A sliding hole is opened on the surface of the protection rod 78. The protection rod 78 is adjusted through the adjustment hole and the positioning hole.
[0027] The buffer device includes: a hollow cylinder 81, a piston 82, a transmission rod 83, a suction cup 84, a positioning block 86 and a bottle stopper 87. The hollow cylinder 81 is fixedly mounted on the side of the protection rod 78 away from the screw rod 75. The piston 82 is slidably mounted on the inner wall of the hollow cylinder 81. The transmission rod 83 penetrates and is slidably mounted on the surface of the protection rod 78. One end of the transmission rod 83 is fixedly mounted on the side of the piston 82 close to the protection rod 78. The suction cup 84 is fixedly mounted on the other end of the transmission rod 83. The interior of the hollow cylinder 81 is provided with a non-Newtonian fluid. The piston 82 quickly squeezes the hollow cylinder 81. 1, when the non-Newtonian fluid is squeezed quickly, it will solidify instantly to limit the rapid movement of the piston 82, so that when the building material falls, it will only fall slowly, preventing the building material from falling directly on the surface of the protection rod 78 and being damaged, thereby improving safety and practicality. The positioning block 86 is fixedly mounted on the surface of the hollow cylinder 81, and the bottle stopper 87 is rotatably mounted on the surface of the positioning block 86, preventing the non-Newtonian fluid from losing its physical properties over time and failing to achieve a buffering effect, thereby improving the stability and practicality of the device.
[0028] A second spring 85 is provided between the piston 82 and the hollow cylinder 81 , and a flow hole is provided on the surface of the piston 82 , and the spring piston 82 is driven by the second spring 85 to reset.
[0029] When the present embodiment is working, the hook 65 lifts the sponge suction cup 71, and the upward movement of the hook 65 drives the sponge suction cup 71 to move. When the sponge suction cup 71 moves, the air pump 72 extracts the air in the sponge suction cup 71, so that the sponge suction cup 71 can adsorb the building materials on the bottom of the sponge suction cup 71, which is convenient for transportation. After the building materials squeeze the sponge, the sponge is deformed, and the sponge is more closely attached to the building materials after deformation, making the adsorption more firm. After the sponge suction cup 71 absorbs the building materials, the electric push rod 73 is started, and the output end of the electric push rod 73 drives the steel cable 77 to move. After the steel cable 77 moves, the limit on the rotating rod 76 is released. After the rotating rod 76 loses the limit, it will be reset by the clockwork spring 710 to drive the ring 79 to rotate. The rotation of the ring 79 will drive the rotating rod 76 to rotate, and the rotation of the rotating rod 76 will drive the protective rod 78 to the bottom The protective rod 78 rotates to the bottom of the building materials. When the building materials fall due to being too heavy, the building materials will fall to the top of the protective rod 78 to prevent the building materials from falling directly to the ground and causing personal and property losses, thereby improving the safety of the device. The position of the protective rod 78 and the rotating rod 76 is adjusted to make the adjustment hole coincide with the positioning hole, and the spring piece 712 is squeezed. The spring piece 712 will be deformed after being squeezed. After the spring piece 712 is deformed, the limit block 711 is inserted into the fixing hole. After the spring piece 712 completely passes through the positioning hole, the spring piece 712 is reset by the No. 1 spring 713. After the spring piece 712 is reset, it will limit the positioning hole and the adjustment hole. The position of the protective rod 78 can be adjusted before transportation, so that when facing building materials of different sizes, they can be protected from falling, thereby improving the applicability of the device.
[0030] The rotation of the rotating rod 76 will drive the protection rod 78 to rotate, and the rotation of the protection rod 78 will drive the hollow cylinder 81 and the transmission rod 83 to rotate. The rotation of the transmission rod 83 will drive the suction cup 84 to rotate. The rotation of the suction cup 84 will be close to the bottom of the building material. When the building material falls, the falling of the building material will push the suction cup 84 to move, and the movement of the suction cup 84 will drive the transmission rod 83 to move. The movement of the transmission rod 83 will drive the piston 82 to move. The movement of the piston 82 can only move slowly inside the hollow cylinder 81 due to the physical properties of the non-Newtonian fluid in the hollow cylinder 81, so that when the building material falls, it will only slowly descend, preventing the building material from falling directly on the surface of the protection rod 78 and being damaged, thereby improving safety and practicality. Rotate the bottle stopper 87, and the flow hole will be opened after the bottle stopper 87 is rotated, so that the non-Newtonian fluid in the hollow cylinder 81 can be replaced, preventing the non-Newtonian fluid from losing its physical properties over time and failing to achieve a buffering effect, thereby improving the stability and practicality of the device.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A lifting device for construction, comprising a construction vehicle (1), Features: A support column (2) is fixedly mounted on the bottom of the construction vehicle (1), a safety ladder (3) is fixedly mounted on the surface of the construction vehicle (1), a boom (4) is rotatably mounted on the top of the construction vehicle (1), a hydraulic rod (5) is arranged on the top of the construction vehicle (1), and a protective device, an anti-falling device and a buffer device are arranged at the bottom of the output end of the boom (4); The protection device comprises: a steel cable (61), a triangular plate (62), a guide wheel (63), a rotating shaft (64), a hook (65), a limiting rod (66), a limiting ring (67) and a transmission rod (68), wherein the steel cable (61) is slidably mounted on the output end surface of the boom (4), the guide wheel (63) is slidably mounted on the surface of the steel cable (61), the triangular plate (62) is fixedly mounted on the surface of the guide wheel (63), the rotating shaft (64) is rotatably mounted between the guide wheels (63), the hook (65) is fixedly mounted on the circumferential surface of the rotating shaft (64), the limiting rod (66) is fixedly mounted on the circumferential surface of the rotating shaft (64), the limiting ring (67) is slidably mounted on a side of the triangular plate (62) close to the rotating shaft (64), one end of the transmission rod (68) is fixedly mounted on the surface of the hook (65), and the other end of the transmission rod (68) is fixedly mounted on a side of the limiting ring (67) close to the rotating shaft (64).
2. A construction hoisting device according to claim 1, Features: A fixing piece is provided between the triangular plates (62), and the limiting ring (67) is in contact with the limiting rod (66).
3. A construction hoisting device according to claim 2, Features: The anti-falling device comprises: a sponge suction cup (71), an air pump (72), an electric push rod (73), a fixing block (74), a screw rod (75), a rotating rod (76), a steel cable (77), a protection rod (78) and a ring (79), wherein the sponge suction cup (71) is fixedly mounted on the inner wall of the hook (65), the air pump (72) is fixedly mounted on the top of the sponge suction cup (71), the electric push rod (73) is fixedly mounted on the top of the sponge suction cup (71), and the fixing block (74) is fixedly mounted on the inner wall of the hook (65). The electric push rod (73) is fixedly mounted on the surface of the sponge suction cup (71), the screw rod (75) is fixedly mounted between the fixed blocks (74), the rotating rod (76) is rotatably mounted on the circumferential surface of the screw rod (75), one end of the steel cable (77) is fixedly mounted on the output end of the electric push rod (73), the other end of the steel cable (77) is fixedly mounted on the surface of the rotating rod (76), the protection rod (78) is inserted into the inner wall of the rotating rod (76), and the ring (79) is fixedly mounted on the surface of the rotating rod (76).
4. A construction hoisting device according to claim 3, Features: A spring (710) is provided between the circular ring (79) and the fixed block (74); a positioning hole is provided on the surface of the rotating rod (76); and an adjustment hole is provided on the surface of the protective rod (78).
5. A construction hoisting device according to claim 4, Features: The anti-falling device further comprises: a limit block (711), a spring (712) and a first spring (713); the limit block (711) is arranged on the top of the rotating rod (76); the spring (712) is fixedly mounted on the bottom of the limit block (711); and the first spring (713) is arranged between the springs (712).
6. A construction hoisting device according to claim 5, Features: The spring sheet (712) is arranged between the positioning hole and the adjustment hole, and a sliding hole is provided on the surface of the protection rod (78).
7. A construction hoisting device according to claim 6, Features: The buffer device comprises: a hollow cylinder (81), a piston (82), a transmission rod (83), a suction cup (84), a positioning block (86) and a bottle stopper (87); the hollow cylinder (81) is fixedly mounted on a side of the protection rod (78) away from the screw rod (75); the piston (82) is slidably mounted on the inner wall of the hollow cylinder (81); the transmission rod (83) penetrates and is slidably mounted on the surface of the protection rod (78); one end of the transmission rod (83) is fixedly mounted on a side of the piston (82) close to the protection rod (78); the suction cup (84) is fixedly mounted on the other end of the transmission rod (83); the positioning block (86) is fixedly mounted on the surface of the hollow cylinder (81); and the bottle stopper (87) is rotatably mounted on the surface of the positioning block (86).
8. A construction hoisting device according to claim 7, Features: A second spring (85) is arranged between the piston (82) and the hollow cylinder (81), a flow hole is provided on the surface of the piston (82), and a non-Newtonian fluid is arranged inside the hollow cylinder (81).
Citation Information
Patent Citations
Steel structure hoisting equipment for fabricated building construction
CN217627069U
