High-stability PC steel bar hoisting equipment

By introducing an anti-fall-off mechanism into the hoisting equipment, and using a motor to drive the lead screw and movable plate to move the limit seat, the problem of PC steel bars falling off due to insufficient friction of the clamps is solved, thereby improving the stability and safety during the hoisting process.

CN223804740UActive Publication Date: 2026-01-16JINAN DONGKANG METAL PROD CO LTD
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Patent Information

Application Number
CN202520390955.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-01-16
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

Existing hoisting equipment has insufficient friction in the clamps when hoisting PC steel bars, which makes the PC steel bars easy to fall off the two ends of the clamps, posing a safety risk.

Method used

An anti-detachment mechanism is adopted, including a double-ended motor, a lead screw, a movable plate, and a limit seat. The motor drives the lead screw to rotate, which in turn moves the movable plate. The limit seat fits against both ends of the PC steel bar, and together with the positioning mechanism, it prevents the steel bar from falling off.

Benefits of technology

It effectively prevents PC steel bars from falling off during hoisting, thus improving the stability and safety of the hoisting equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of lifting equipment, and particularly relates to high-stability PC steel bar lifting equipment which comprises a lifting appliance, the lifting appliance comprises a supporting seat, and the top of the supporting seat is fixedly connected with a hanging ring and an air cylinder respectively; by arranging the anti-falling mechanism, the screw rod is driven to rotate through the double-end motor, the first movable plate is driven to move through the rotation of the screw rod, the second movable plate is driven to move through the movement of the first movable plate, and the limiting seat is driven to move through the movement of the second movable plate until the limiting seat is attached to the two ends of the PC steel bar; the PC steel bar can be prevented from falling off, and the problems that when hoisting equipment is used, generally, only the surface of the PC steel bar is clamped and fixed through a clamp, due to the fact that a hoisting tool inevitably shakes and inclines in the air moving process, friction force is possibly insufficient when a single clamp is used for clamping, and the PC steel bar is prone to falling off from the two ends of the clamp are solved. And certain safety risks exist.
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Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting equipment field, concretely is a high stability PC steel stick hoisting equipment. BACKGROUND

[0002] Hoisting equipment is the mechanical equipment for carrying heavy objects, and is widely used in various fields, such as construction sites, ports and docks, factories and warehouses, mines and quarries, and aerial work, etc. During the long-distance movement of heavy PC steel rods, hoisting equipment is often used to move the PC steel rods.

[0003] However, the existing hoisting equipment usually only uses clamps to clamp and fix the surface of the PC steel rod during use. Since the hoist will inevitably sway and tilt during movement in the air, the clamping friction of the simple clamp may be insufficient, which can easily cause the PC steel rod to fall off from both ends of the clamp, and there is a certain safety risk. UTILITY MODEL CONTENTS

[0004] In order to make up for the deficiencies of the prior art, the hoisting equipment usually only uses clamps to clamp and fix the surface of the PC steel rod during use. Since the hoist will inevitably sway and tilt during movement in the air, the clamping friction of the simple clamp may be insufficient, which can easily cause the PC steel rod to fall off from both ends of the clamp, and there is a certain safety risk. The utility model provides a high-stability PC steel rod hoisting equipment.

[0005] The utility model adopts the technical scheme in the technical field to solve its technical problems: a high-stability PC steel rod hoisting equipment, including the hoist, the hoist includes the support seat, the top of support seat is fixedly connected with the ring and the cylinder respectively, the output of cylinder is fixedly connected with the moving plate, the bottom of support seat is fixedly connected with the support plate, the inner chamber of support plate is movably connected with the support shaft, the surface of support shaft is movably connected with the clamping jaw, the inner chamber of clamping jaw is equipped with the first movable slot, the inner chamber of moving plate is fixedly connected with the second connecting shaft, the surface of second connecting shaft is movably connected with the connecting plate, the bottom of connecting plate inner chamber is movably connected with the first connecting shaft, the surface of first connecting shaft is fixedly connected with the inner chamber of first movable slot, the both sides of support seat bottom are equipped with the anti-falling mechanism,

[0006] The anti-falling mechanism includes a double-end motor and a moving groove, the bottom of the double-end motor is fixedly connected with the top of the support seat, the output end of the double-end motor is fixedly connected with a lead screw, the moving groove is arranged on both sides of the inner chamber of the support seat, the surface of the lead screw is threadedly connected with a first movable plate, the bottom of the first movable plate is fixedly connected with a second movable plate, the bottom of the second movable plate is fixedly connected with a limiting seat, the top of the limiting seat is movably connected with the bottom of the support seat, and a positioning mechanism is installed in the inner chamber of the limiting seat.

[0007] As preferred, the inner cavity of the moving groove is movably connected with a first movable plate and a second movable plate respectively, the inner cavity of the moving groove is fixedly connected with a guide rod, and the surface of the guide rod is movably connected with the inner cavity of the second movable plate.

[0008] As preferred, the inner cavity of the first movable plate is movably connected with a supporting rod, the two sides of the supporting rod and the lead screw are movably connected with a fixed plate, and the bottom of the fixed plate is fixedly connected with the top of the supporting base.

[0009] As preferred, the positioning mechanism comprises an electric push rod, the front side of the electric push rod is fixedly connected with the back side of the limiting seat, the output end of the electric push rod is fixedly connected with a push plate, the surface of the push plate is movably connected with a rotating plate, the surface of the rotating plate is movably connected with a connecting seat, the bottom of the connecting seat is fixedly connected with a positioning frame, the inner cavity of the positioning frame is provided with an adjusting groove, the inner cavity of the adjusting groove is movably connected with a limiting plate, the inner cavity of the limiting plate is movably connected with an adjusting plate, and one side of the adjusting plate is fixedly connected with a positioning roller.

[0010] As preferred, the inner cavity of the push plate is movably connected with a fourth connecting shaft, the surface of the fourth connecting shaft is fixedly connected with the top of the inner cavity of the rotating plate, the bottom of the inner cavity of the rotating plate is movably connected with a third connecting shaft, and the surface of the third connecting shaft is fixedly connected with the connecting seat.

[0011] As preferred, the inner cavity of the adjusting plate is movably connected with a fixed shaft, and the surface of the fixed shaft is fixedly connected with the inner cavity of the limiting seat.

[0012] As preferred, the surface of the adjusting plate is movably connected with a limiting plate, the front side and the back side of the limiting plate are fixedly connected with a fixed rod, and one side of the fixed rod is fixedly connected with the inner cavity of the adjusting groove.

[0013] The utility model discloses the beneficial effect lies in:

[0014] The utility model discloses a prevent falling mechanism, through double -end motor drive screw rod rotation, through the rotation of screw rod drive first movable plate moves, through the movement of first movable plate drive second movable plate moves, through the movement of second movable plate drive limiting seat moves, until the limiting seat is pasted in the both ends of PC steel stick, can prevent PC steel stick from falling, solved the hoisting equipment when using, usually only to the surface of PC steel stick with clamp clamping fixed, since the hoist moves in the air process, inevitably will have the shaking inclination, the simple clamp carries out the clamping friction force possibly not enough, easily leads to PC steel stick from the both ends of clamp and falls, and there is certain security risk's problem. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0016] Figure 1 It is a structural schematic view of the present application;

[0017] Figure 2 It is a sectional view of the support seat of the present application;

[0018] Figure 3 It is a sectional view of the limiting seat of the present application;

[0019] Figure 4 It is a sectional view of the connecting seat of the present application;

[0020] Figure 5 It is a structural schematic view of the adjusting plate of the present application;

[0021] Figure 6 It is a structural schematic view of the cylinder of the present application;

[0022] Figure 7 It is a structural schematic view of the clamping claw of the present application.

[0023] In the drawings: 1, lifting appliance; 101, support seat; 102, clamping claw; 103, hanging ring; 104, cylinder; 105, moving plate; 106, first movable groove; 107, support plate; 108, connecting plate; 109, first connecting shaft; 110, second connecting shaft; 111, support shaft; 2, anti-falling mechanism; 201, double-end motor; 202, limiting seat; 203, screw rod; 204, guide rod; 205, first movable plate; 206, fixed plate; 207, support rod; 208, moving groove; 209, second movable plate; 3, positioning mechanism; 301, electric push rod; 302, adjusting groove; 303, positioning frame; 304, fixed shaft; 305, adjusting plate; 306, connecting seat; 307, push plate; 308, third connecting shaft; 309, rotating plate; 310, fourth connecting shaft; 311, limiting plate; 312, positioning roller; 313, fixed rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application. Figures 1-7 The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application. Figure 1 、 Figure 2 、 Figure 6 and Figure 7 A high-stability PC steel rod hoisting device, comprising a lifting appliance 1, the lifting appliance 1 comprising a support seat 101, the top of the support seat 101 being fixedly connected with a hanging ring 103 and a pneumatic cylinder 104 respectively, the output end of the pneumatic cylinder 104 being fixedly connected with a moving plate 105, the bottom of the support seat 101 being fixedly connected with a support plate 107, the inner cavity of the support plate 107 being movably connected with a support shaft 111, the surface of the support shaft 111 being movably connected with a clamping jaw 102, the inner cavity of the clamping jaw 102 being provided with a first movable groove 106, the inner cavity of the moving plate 105 being fixedly connected with a second connecting shaft 110, the surface of the second connecting shaft 110 being movably connected with a connecting plate 108, the inner cavity of the connecting plate 108 being movably connected with a first connecting shaft 109 at the bottom, the surface of the first connecting shaft 109 being fixedly connected with the inner cavity of the first movable groove 106, and the two sides of the bottom of the support seat 101 being provided with anti-falling mechanisms 2.

[0027] The anti-falling mechanism 2 comprises a double-end motor 201 and a moving groove 208, the bottom of the double-end motor 201 is fixedly connected with the top of the support seat 101, the output end of the double-end motor 201 is fixedly connected with a lead screw 203, the moving groove 208 is arranged on the two sides of the inner cavity of the support seat 101, the surface of the lead screw 203 is threadedly connected with a first movable plate 205, the bottom of the first movable plate 205 is fixedly connected with a second movable plate 209, the bottom of the second movable plate 209 is fixedly connected with a limiting seat 202, the top of the limiting seat 202 is movably connected with the bottom of the support seat 101, and the inner cavity of the limiting seat 202 is provided with a positioning mechanism 3.

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application. Figure 2The inner cavity of the moving groove 208 is movably connected with the first movable plate 205 and the second movable plate 209 respectively, and the inner cavity of the moving groove 208 is fixedly connected with the guide rod 204, and the surface of the guide rod 204 is movably connected with the inner cavity of the second movable plate 209. Through the arrangement of the moving groove 208, the first movable plate 205 and the second movable plate 209 can move in the inside of the support seat 101, and then the movement of the first movable plate 205 and the second movable plate 209 can be limited, and through the arrangement of the guide rod 204, the movement of the first movable plate 205 is guided, so as to prevent the position of the limiting seat 202 from deviating during the movement.

[0029] With reference to Figure 2 The inner cavity of the first movable plate 205 is movably connected with the supporting rod 207, and the both sides of the supporting rod 207 and the lead screw 203 are movably connected with the fixed plate 206, and the bottom of the fixed plate 206 is fixedly connected with the top of the support seat 101. Through the arrangement of the supporting rod 207, the back side of the first movable plate 205 is supported and guided, the stability of the first movable plate 205 during movement is improved, and the first movable plate 205 is prevented from being stuck during movement.

[0030] With reference to Figure 3 , Figure 4 and Figure 5 The positioning mechanism 3 comprises an electric push rod 301, the front side of the electric push rod 301 is fixedly connected with the back side of the limiting seat 202, the output end of the electric push rod 301 is fixedly connected with a push plate 307, the surface of the push plate 307 is movably connected with a rotating plate 309, the surface of the rotating plate 309 is movably connected with a connecting seat 306, the bottom of the connecting seat 306 is fixedly connected with a positioning frame 303, the inner cavity of the positioning frame 303 is provided with an adjusting groove 302, the inner cavity of the adjusting groove 302 is movably connected with a limiting plate 311, the inner cavity of the limiting plate 311 is movably connected with an adjusting plate 305, one side of the adjusting plate 305 is fixedly connected with a positioning roller 312. Through the arrangement of the electric push rod 301, the push plate 307 can be pushed to move, the connecting seat 306 can be pushed to rotate through the movement of the push plate 307, the positioning frame 303 can be driven to rotate through the rotation of the connecting seat 306, and then the positioning roller 312 can be expanded or contracted through the rotation of the positioning frame 303, that is, the surface of the PC steel rod in the limiting seat 202 can be positioned, and the PC steel rod in the limiting seat 202 is prevented from shaking.

[0031] With reference to Figure 4The inner cavity of the push plate 307 is movably connected with a fourth connecting shaft 310, the surface of the fourth connecting shaft 310 is fixedly connected with the top of the inner cavity of the rotating plate 309, the bottom of the inner cavity of the rotating plate 309 is movably connected with a third connecting shaft 308, the surface of the third connecting shaft 308 is fixedly connected with the connecting seat 306, the third connecting shaft 308 is arranged to connect the connecting seat 306 and the rotating plate 309, the fourth connecting shaft 310 is arranged to connect the push plate 307 and the rotating plate 309, so that the position of the push plate 307 and the rotating plate 309 during movement is prevented from being stuck, and the normal rotation of the connecting seat 306 is affected.

[0032] With reference to Figure 5 The inner cavity of the adjusting plate 305 is movably connected with a fixed shaft 304, the surface of the fixed shaft 304 is fixedly connected with the inner cavity of the limiting seat 202, the fixed shaft 304 is arranged to position the adjusting plate 305, so that the adjusting plate 305 rotates around the surface of the fixed shaft 304 during rotation, and the position of the adjusting plate 305 during rotation is prevented from moving.

[0033] With reference to Figure 3 And Figure 5 The surface of the adjusting plate 305 is movably connected with a limiting plate 311, the front side and the back side of the limiting plate 311 are fixedly connected with a fixed rod 313, one side of the fixed rod 313 is fixedly connected with the inner cavity of the adjusting groove 302, the fixed rod 313 is arranged to fix the limiting plate 311 and the adjusting groove 302, so that the limiting plate 311 is driven to rotate when the adjusting groove 302 rotates, the adjusting plate 305 is pushed to rotate in the adjusting groove 302 through the rotation of the limiting plate 311, and the position of the positioning roller 312 is adjusted.

[0034] Working principle: before the PC steel bar is hoisted, first push the moving plate 105 downward through the cylinder 104, drive the connecting plate 108 to move through the movement of the moving plate 105, the connecting plate 108 moves while rotating around the inner cavity of the moving plate 105 and the first movable slot 106, the clamping jaw 102 is pushed inward through the movement of the connecting plate 108 to clamp the surface of the PC steel bar, then the lead screw 203 is driven to rotate through the double-end motor 201, the first movable plate 205 is driven to move through the rotation of the lead screw 203, the second movable plate 209 is driven to move through the movement of the first movable plate 205, the limiting seat 202 is driven to move through the movement of the second movable plate 209, until the limiting seat 202 is attached to the two ends of the PC steel bar, limiting the PC steel bar, preventing the PC steel bar from sliding off the two ends of the clamping jaw 102 due to the shaking of the supporting seat 101 during hoisting, after the limiting seat 202 is sleeved on the two ends of the PC steel bar, the push plate 307 is pushed to move through the electric push rod 301, the rotating plate 309 is driven to move through the movement of the push plate 307, the connecting seat 306 rotates in the inner part during the movement of the rotating plate 309, and the connecting seat 306 is pushed to rotate, the positioning frame 303 is driven to rotate through the rotation of the connecting seat 306, the fixed rod 313 is driven to rotate through the rotation of the positioning frame 303, the limiting plate 311 is driven to rotate through the rotation of the fixed rod 313, the adjusting plate 305 is pushed to rotate around the surface of the fixed shaft 304 during the rotation of the limiting plate 311, the positioning roller 312 is driven to rotate through the rotation of the adjusting plate 305, the position of the positioning roller 312 can be adjusted, which is stably attached to the surface of the PC steel bar, and the PC steel bar is positioned to prevent the PC steel bar from shaking in the limiting seat 202, and the stability of the supporting seat 101 during hoisting is increased.

[0035] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A high-stability PC steel rod hoisting device, comprising a lifting device (1), characterized in that: The lifting appliance (1) comprises a support seat (101), the top of the support seat (101) is fixedly connected with a hanging ring (103) and a cylinder (104) respectively, the output end of the cylinder (104) is fixedly connected with a moving plate (105), the bottom of the support seat (101) is fixedly connected with a support plate (107), the inner cavity of the support plate (107) is movably connected with a support shaft (111), the surface of the support shaft (111) is movably connected with a clamping jaw (102), the inner cavity of the clamping jaw (102) is provided with a first movable groove (106), the inner cavity of the moving plate (105) is fixedly connected with a second connecting shaft (110), the surface of the second connecting shaft (110) is movably connected with a connecting plate (108), the bottom of the inner cavity of the connecting plate (108) is movably connected with a first connecting shaft (109), the surface of the first connecting shaft (109) is fixedly connected with the inner cavity of the first movable groove (106), and the bottom of the support seat (101) is provided with anti-falling mechanisms (2) on both sides. The anti-falling mechanism (2) comprises a double-end motor (201) and a moving groove (208), the bottom of the double-end motor (201) is fixedly connected with the top of the support seat (101), the output end of the double-end motor (201) is fixedly connected with a lead screw (203), the moving groove (208) is arranged on the two sides of the inner cavity of the support seat (101), the surface of the lead screw (203) is screw-connected with a first movable plate (205), the bottom of the first movable plate (205) is fixedly connected with a second movable plate (209), the bottom of the second movable plate (209) is fixedly connected with a limiting seat (202), the top of the limiting seat (202) is movably connected with the bottom of the support seat (101), and the inner cavity of the limiting seat (202) is provided with a positioning mechanism (3).

2. The high-stability PC steel rod hoisting device according to claim 1, characterized in that: The inner cavity of the moving groove (208) is movably connected with the first movable plate (205) and the second movable plate (209) respectively, the inner cavity of the moving groove (208) is fixedly connected with a guide rod (204), and the surface of the guide rod (204) is movably connected with the inner cavity of the second movable plate (209).

3. The high-stability PC steel rod hoisting device according to claim 1, characterized in that: The inner cavity of the first movable plate (205) is movably connected with a support rod (207), the two sides of the support rod (207) and the lead screw (203) are movably connected with a fixed plate (206), and the bottom of the fixed plate (206) is fixedly connected with the top of the support seat (101).

4. The high-stability PC steel rod hoisting device according to claim 1, characterized in that: The positioning mechanism (3) includes an electric push rod (301), the front side of the electric push rod (301) is fixedly connected with the back side of the limiting seat (202), the output end of the electric push rod (301) is fixedly connected with a push plate (307), the surface of the push plate (307) is movably connected with a rotating plate (309), the surface of the rotating plate (309) is movably connected with a connecting seat (306), the bottom of the connecting seat (306) is fixedly connected with a positioning frame (303), the inner cavity of the positioning frame (303) is provided with an adjusting groove (302), the inner cavity of the adjusting groove (302) is movably connected with a limiting plate (311), the inner cavity of the limiting plate (311) is movably connected with an adjusting plate (305), one side of the adjusting plate (305) is fixedly connected with a positioning roller (312).

5. The high-stability PC steel rod hoisting device according to claim 4, characterized in that: The inner cavity of the push plate (307) is movably connected with a fourth connecting shaft (310), the surface of the fourth connecting shaft (310) is fixedly connected with the top of the inner cavity of the rotating plate (309), the bottom of the inner cavity of the rotating plate (309) is movably connected with a third connecting shaft (308), the surface of the third connecting shaft (308) is movably connected with the connecting seat (306).

6. The high-stability PC steel rod hoisting device according to claim 4, characterized in that: The inner cavity of the adjusting plate (305) is movably connected with a fixing shaft (304), the surface of the fixing shaft (304) is fixedly connected with the inner cavity of the limiting seat (202).

7. The high-stability PC steel rod hoisting device according to claim 4, characterized in that: The surface of the adjusting plate (305) is movably connected with the limiting plate (311), the front side and the back side of the limiting plate (311) are fixedly connected with a fixing rod (313), one side of the fixing rod (313) is fixedly connected with the inner cavity of the adjusting groove (302).