Anti-slip device for lifting straps of vertical segment lifting

Abstract

The present invention relates to the technical field of pipe segment installation, and specifically to a sling anti-slip device for vertically hoisting pipe segments, comprising a mounting plate, a fixing mechanism, a hoisting mechanism and a clamping mechanism, wherein the fixing mechanism is located on the inner side of the mounting plate, the fixing mechanism is used to connect the hoisting equipment, the hoisting mechanism is located on the back side of the mounting plate, the hoisting mechanism is used to vertically hoist the pipe segment, the clamping mechanism is fixedly installed on the fixing mechanism, the clamping mechanism is used to clamp and fix the front side of the pipe segment, the fixing mechanism comprises an upper clamping plate, four rubber gaskets, a connecting rod, a lower clamping plate, a fixing rod and a two-way telescopic rod, and the upper clamping plate is slidably installed on the inner top of the mounting plate. The sling anti-slip device for vertically hoisting pipe segments, through the setting of the fixing mechanism, enables the staff to quickly fix the pipe segment by screwing a set of threaded rods, thereby improving the hoisting efficiency of the pipe segment and reducing the labor of the staff.

Description

Technical Field

[0001] The invention relates to the technical field of pipe segment installation, and in particular to a lifting belt anti-slip device for vertically lifting pipe segments. Background Art

[0002] A segment is a precast concrete component used in shield tunnel construction. Segments are usually divided into several blocks for easy transportation and installation. Common block divisions include six, seven or eight blocks. Common segment types include reinforced concrete segments and composite segments. Segments are usually lifted from the segment stacking site to the tail of the shield machine by a gantry crane or a crane. During the lifting process, the segments must be kept stable and safe to avoid collision and damage.

[0003] After searching, Chinese patent announcement number: CN114014150B discloses a sling anti-slip device for vertical lifting of pipe segments, wherein an upper clamping assembly is abutted against the upper surface of the pipe segment, and a lower clamping assembly is abutted against the lower surface of the pipe segment, and the upper clamping assembly and the lower clamping assembly are used to clamp the arranged pipe segments, and a certain pressure is applied to the arranged pipe segments so that there is a greater friction force between adjacent pipe segments. During the lifting process, the friction force between adjacent pipe segments is used to fix the position of the pipe segments, reducing the possibility of sliding between adjacent pipe segments, thereby increasing the stability of the pipe segments and reducing the possibility of slipping of the pipe segments during the lifting process.

[0004] Considering that when the above-mentioned device is in use, the staff needs to screw multiple sets of threaded rods multiple times so that the multiple sets of contact seats can apply pressure to the top and bottom of the pipe segment, thereby fixing the pipe segment. When releasing the fixing effect of the pipe segment, the staff also needs to screw the multiple sets of threaded rods in reverse multiple times, which increases the labor of the staff and reduces the efficiency of lifting the pipe segment. Summary of the invention

[0005] The purpose of the present invention is to provide a sling anti-slip device for vertically slinging pipe segments.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] The lifting mechanism is fixedly mounted on the fixing mechanism, and the fixing mechanism is used to fix the front of the pipe segment. The fixing mechanism includes an upper clamping plate, four rubber gaskets, a connecting rod, a lower clamping plate, a fixing rod and a two-way telescopic rod. The upper clamping plate is slidably mounted on the inner top end of the mounting plate, and the lower clamping plate is slidably mounted on the inner bottom end of the mounting plate. The four rubber gaskets are respectively fixedly mounted on the bottom of the upper clamping plate and the top of the lower clamping plate. The connecting rod is fixedly mounted on the back of the upper clamping plate, and the fixing rod is fixedly mounted on the back of the lower clamping plate. One end of the two-way telescopic rod is hinged to the bottom end of the connecting rod, and the other end of the two-way telescopic rod is hinged to the top end of the fixing rod. The middle part of the two-way telescopic rod is rotatably connected to the inner side of the mounting plate.

[0008] Furthermore, the lifting mechanism includes a guiding mechanism, a fixed column, a hook, a return spring and a clamping rod. The fixed column is fixedly installed on the rear end top of the lower clamping plate, the hook is fixedly installed on the top of the fixed column, and a clamping groove is provided at the bottom end of the hook. One end of the return spring is fixedly connected to the inner side of the top end of the hook, and the other end of the return spring is fixedly installed on the top of the clamping rod. The outer wall of the clamping rod is slidably connected to the inner side of the top end of the hook, and the bottom end of the clamping rod is clamped in the clamping groove.

[0009] Furthermore, the guiding mechanism includes a fixed block, an arc-shaped plate, an insertion rod, a spring, a pull rod and a U-shaped plate. The fixed block is fixedly installed on the back of the mounting plate, the outer wall of the arc-shaped plate is hinged to the inner side of the left end of the fixed block, a slot is opened on the right side of the arc-shaped plate, the insertion rod is fixedly installed on the left side of the U-shaped plate, one end of the spring is fixedly connected to the inner side of the fixed block, the other end of the spring is fixedly installed on the right side of the U-shaped plate, the outer periphery of the U-shaped plate is slidably connected to the inner side of the fixed block, the pull rod is fixedly installed on the right side of the U-shaped plate, the outer periphery of the pull rod penetrates and is slidably connected to the right inner wall of the fixed block, and the outer wall of the insertion rod is clamped with the inner side of the slot.

[0010] Furthermore, the lifting mechanism also includes a connecting plate, a lifting rope and a lifting ring. The lifting rope is fixedly installed at the bottom of the connecting plate, the lifting ring is fixedly installed at the bottom end of the lifting rope, and the lifting ring is sleeved on the inner side of the hook.

[0011] Furthermore, the clamping mechanism includes a pressure plate, a moving rod, a hinged rod, a guide rod, a slider, a movable rod, a sliding rod, a rubber gasket 2 and a compression spring. The moving rod is fixedly installed at the top end of the back side of the pressure plate, one end of the hinged rod is hinged to the back side of the moving rod, the other end of the hinged rod is hinged to the front side of the slider, the slider is slidably connected to the outer wall of the guide rod, one end of the movable rod is rotatably connected to the back side of the slider, the other end of the movable rod is hinged to the outer wall of the rubber gasket 2, the rubber gasket 2 is fixedly installed at the top of the sliding rod, one end of the compression spring is fixedly connected to the inner side of the upper clamping plate, and the other end of the compression spring is fixedly installed on the outer wall of the slider.

[0012] Furthermore, the outer periphery of the movable rod penetrates and is slidably connected to the inner side of the front face of the upper clamping plate, the outer periphery of the sliding rod penetrates and is slidably connected to the inner side of the bottom of the upper clamping plate, the guide rod is fixedly installed on the inner side of the upper clamping plate, and a groove is provided at the bottom of the upper clamping plate.

[0013] Furthermore, two clamping mechanisms are provided, and the two clamping mechanisms are symmetrically distributed on the inner sides of the upper clamping plate and the lower clamping plate respectively.

[0014] Furthermore, the fixing mechanism also includes a cylindrical rod, a frame and a threaded rod. The cylindrical rod is fixedly installed on the inner side of the back side of the lower clamping plate, the cylindrical rod is slidably connected to the inner side of the frame, the frame is slidably connected to the inner side of the back side of the mounting plate, the outer periphery of the threaded rod passes through and is threadedly connected to the top inner side of the frame, and the outer periphery of the threaded rod passes through and is rotatably connected to the top inner side of the mounting plate.

[0015] The beneficial effects of the present invention are as follows: the anti-slip device for the vertically hoisting belt of the pipe segment, through the set fixing mechanism, enables the staff to quickly fix the pipe segment by screwing a group of threaded rods, thereby improving the hoisting efficiency of the pipe segment and reducing the labor of the staff; at the same time, through the set hoisting mechanism, the fixing effect of the pipe segment can be further improved by the pulling force of the hoisting rope when the pipe segment is hoisted, and the anti-slip effect of the hoisting rope can be achieved, thereby improving the use effect and safety performance of the anti-slip device for the pipe segment; in addition, through the set clamping mechanism, when the top and bottom of the pipe segment are clamped and fixed, the front of the pipe segment can be clamped by the pressing plate at the same time, further improving the fixing effect of the pipe segment, preventing the pipe segment from loosening and slipping, thereby further improving the use effect and safety of the anti-slip device for the pipe segment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the embodiments of the present invention are briefly introduced below.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2It is a schematic diagram of the rear view structure of the mounting plate of the present invention;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the mounting plate of the present invention;

[0020] Figure 4 It is a schematic diagram of the front view structure of the upper clamping plate of the present invention;

[0021] Figure 5 It is a schematic diagram of the front view structure of the lower clamping plate of the present invention;

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the fixing column and the hook of the present invention;

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of the fixing block and the arc-shaped plate of the present invention;

[0024] Figure 8 It is a schematic diagram of the main structure of the U-shaped plate of the present invention;

[0025] Fig. 9 It is a schematic diagram of the cross-sectional structure of the upper clamping plate of the present invention;

[0026] Fig.10 It is a schematic diagram of the front view structure of the clamping mechanism of the present invention.

[0027] In the figure: 1. mounting plate; 2. fixing mechanism; 21. upper clamping plate; 22. rubber gasket 1; 23. connecting rod; 24. lower clamping plate; 25. fixing rod; 26. two-way telescopic rod; 27. cylindrical rod; 28. frame; 29. ​​threaded rod; 3. lifting mechanism; 31. connecting plate; 32. lifting rope; 33. guiding mechanism; 331. fixing block; 332. arc plate; 333. plug rod; 334. spring; 335. pull rod; 336. U-shaped plate; 34. lifting ring; 35. fixing column; 36. lifting hook; 37. reset spring; 38. clamping rod; 4. clamping mechanism; 41. pressing plate; 42. moving rod; 43. hinged rod; 44. guide rod; 45. slider; 46. movable rod; 47. sliding rod; 48. rubber gasket 2; 49. compression spring. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0029] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product.

[0030] Reference Figure 1 to Figure 2The shown anti-slip device for the vertical lifting of the pipe segment includes a mounting plate 1, a fixing mechanism 2, a lifting mechanism 3 and a clamping mechanism 4. The fixing mechanism 2 is located on the inner side of the mounting plate 1. The fixing mechanism 2 is used to clamp and fix the lifted pipe segment, thereby realizing a restraining effect on the position of the pipe segment and improving the stability of the pipe segment during lifting. The lifting mechanism 3 is located on the back side of the mounting plate 1. The lifting mechanism 3 is used to connect the lifting equipment. Through the lifting mechanism 3, the pulling force of the lifting rope 32 can further improve the clamping and fixing effect of the pipe segment, and at the same time can prevent the lifting rope 32 from slipping, thereby improving the safety of the pipe segment during lifting. The clamping mechanism 4 is fixedly installed on the fixing mechanism 2. The clamping mechanism 4 is used to clamp and fix the front side of the pipe segment. Through the clamping mechanism 4, the front side of the pipe segment can be limited, further improving the restraining effect of the pipe segment and avoiding the pipe segment from slipping.

[0031] Reference Figures 2 to 5 The fixing mechanism 2 includes an upper clamping plate 21, four rubber gaskets 22, a connecting rod 23, a lower clamping plate 24, a fixing rod 25 and a bidirectional telescopic rod 26. The upper clamping plate 21 can be slidably installed on the inner top end of the mounting plate 1, and the lower clamping plate 24 can be slidably installed on the inner bottom end of the mounting plate 1. The upper clamping plate 21 and the lower clamping plate 24 are respectively abutted against the top and bottom of the pipe segment, thereby clamping and fixing the pipe segment. The four rubber gaskets 22 are respectively fixedly installed on the bottom of the upper clamping plate 21 and the top of the lower clamping plate 24. The four rubber gaskets 22 can improve the friction between the upper clamping plate 21 and the lower clamping plate 24 and the pipe segment, thereby improving the clamping effect on the pipe segment. The connecting rod 23 is fixedly installed on the back of the upper clamping plate 21. 3 can drive the upper clamping plate 21 to slide vertically, the fixing rod 25 is fixedly installed on the back of the lower clamping plate 24, and the lower clamping plate 24 can be driven to slide vertically through the fixing rod 25. One end of the two-way telescopic rod 26 is hinged to the bottom end of the connecting rod 23, and the other end of the two-way telescopic rod 26 is hinged to the top end of the fixing rod 25. The two-way telescopic rod 26 and the fixing rod 25 are symmetrically distributed in two groups. The middle part of the two-way telescopic rod 26 is rotatably connected to the inner side of the mounting plate 1. The two-way telescopic rod 26 is a three-section type, and its two ends can be contracted toward the middle or extended to both sides. Through the moving effect of the two groups of fixing rods 25, the two groups of two-way telescopic rods 26 can be driven to rotate at the same time, thereby driving the connecting rod 23 to move, so that the upper clamping plate 21 and the lower clamping plate 24 can be close to or away from each other. Figure 3 The direction indicated by the middle arrow is the rotation direction of the bidirectional telescopic rod 26 when the lower clamping plate 24 moves upward and drives the upper clamping plate 21 to move downward.

[0032] Reference Figure 2 and Figure 6The lifting mechanism 3 includes a guide mechanism 33, a fixed column 35, a hook 36, a reset spring 37 and a clamping rod 38. The fixed column 35 is fixedly installed on the rear end top of the lower clamping plate 24. The fixed column 35 is symmetrically distributed in two groups. The hook 36 is fixedly installed on the top of the fixed column 35. The hook 36 is symmetrically distributed in two groups. A clamping groove is opened at the bottom end of the hook 36. One end of the reset spring 37 is fixedly connected to the inner side of the top end of the hook 36. The other end of the reset spring 37 is fixedly installed Installed on the top of the clamping rod 38, the elastic force of the reset spring 37 allows the clamping rod 38 to always maintain the clamping effect with the clamping slot when not affected by external force. The outer wall of the clamping rod 38 is slidably connected to the inner side of the top end of the hook 36. The clamping rod 38 and the reset spring 37 are each provided with two groups, which are respectively located on the two groups of hooks 36. The bottom end of the clamping rod 38 is clamped with the clamping slot. Through the clamping effect of the clamping rod 38 and the clamping slot, the opening of the hook 36 can be closed.

[0033] Reference Figure 7 and Figure 8The guide mechanism 33 includes a fixed block 331, an arc plate 332, a plug rod 333, a spring 334, a pull rod 335 and a U-shaped plate 336. The fixed block 331 is fixedly installed on the back of the mounting plate 1. The fixed block 331 and the arc plate 332 are symmetrically distributed in two groups. The outer wall of the arc plate 332 is hinged to the inner side of the left end of the fixed block 331. Through the hinge effect of the arc plate 332, the arc plate 332 can be rotated to open or close. A slot is opened on the right side of the arc plate 332. Each group of arc plates 33 2, two groups of slots are symmetrically distributed on the left side of the U-shaped plate 336, the insertion rod 333 is fixedly installed on the left side of the U-shaped plate 336, and the U-shaped plate 336 is provided with two groups, which are symmetrically distributed on the inner sides of the two groups of fixing blocks 331, and each group of U-shaped plates 336 is symmetrically distributed with two groups of insertion rods 333 and two groups of springs 334, one end of the spring 334 is fixedly connected to the inner side of the fixing block 331, and the other end of the spring 334 is fixedly installed on the right side of the U-shaped plate 336. Through the elastic force of the spring 334, the U-shaped plate 336 is not subject to external force. The cam 332 is a cam which is used to move the locking cam 333 to the locking cam 334. The cam 333 is a cam which is used to move the locking cam 334 to the locking cam 335. The cam 333 is a cam which is used to move the locking cam 333 to the locking cam 334. The plate 336 releases the clamping effect of the plug rod 333 and the slot, and the outer wall of the plug rod 333 is clamped with the inner side of the slot. The staff passes the lifting rope 32 through the circular ring formed by the arc plate 332 and the fixed block 331, and then clamps the plug rod 333 with the slot to limit the arc plate 332, so that the fixed block 331 and the arc plate 332 guide the lifting rope 32, so that the lifting rope 32 can lift the mounting plate 1 from the bottom end of the mounting plate 1, thereby improving the stability of the mounting plate 1 during lifting.

[0034] Reference Figure 2 The lifting mechanism 3 also includes a connecting plate 31, a lifting rope 32 and a lifting ring 34. The lifting rope 32 is fixedly installed at the bottom of the connecting plate 31. The connecting plate 31 is used to connect with an external lifting device. The lifting ring 34 is fixedly installed at the bottom of the lifting rope 32. The lifting rope 32 and the lifting ring 34 are symmetrically arranged in two groups. The lifting ring 34 is sleeved on the inner side of the hook 36. By sleeved the lifting ring 34 in the hook 36, the mounting plate 1 and the pipe segment are lifted. When the lifting ring 34 accidentally falls off from the hook 36, the fixing block 331 and the arc plate 332 can block the lifting ring 34, thereby further preventing the lifting rope 32 from slipping.

[0035] Reference Fig. 9 and Fig.10The clamping mechanism 4 includes a pressing plate 41, a moving rod 42, a hinged rod 43, a guide rod 44, a slider 45, a movable rod 46, a sliding rod 47, a rubber gasket 48 and a compression spring 49. The moving rod 42 is fixedly installed on the top of the back side of the pressing plate 41. The moving rod 42 is symmetrically distributed in two groups. The pressing plate 41 is guided by the two groups of moving rods 42. One end of the hinged rod 43 is hinged to the back side of the moving rod 42, and the other end of the hinged rod 43 is hinged to the front side of the slider 45. The hinged rod 43 and the slider 45 are symmetrically distributed in two groups. Through the moving effect of the slider 45, the hinged rod 43 can be driven to move, so that the moving rod 42 can drive the pressing plate 41 to move. The slider 45 can be slidably connected to the outer wall of the guide rod 44, and the slider 45 is guided by the guide rod 44 to prevent the slider 45 from deviating when moving. One end of the movable rod 46 is hinged to the slider 4 5 is rotatably connected to the back of the movable rod 46, the other end of the movable rod 46 is hinged to the outer wall of the rubber gasket 248, and the rubber gasket 248 and the movable rod 46 are symmetrically distributed in two groups. Through the moving effect of the rubber gasket 248, the movable rod 46 can be driven to move, thereby driving the slider 45 to slide along the outer wall of the guide rod 44. The rubber gasket 248 is fixedly installed on the top of the sliding rod 47, and the sliding rod 47 is symmetrically distributed in two groups. The sliding rod 47 plays a guiding role for the rubber gasket 248, one end of the compression spring 49 is fixedly connected to the inner side of the upper clamping plate 21, and the other end of the compression spring 49 is fixedly installed on the outer wall of the slider 45, and the compression spring 49 is symmetrically distributed in two groups. Through the elastic force of the compression spring 49, the slider 45 is always kept sliding towards the middle position of the guide rod 44 without being affected by external force, thereby driving the pressure plate 41 and the rubber gasket 248 to expand outward.

[0036] Reference Fig. 9 and Fig.10 The outer periphery of the moving rod 42 penetrates and is slidably connected to the inner side of the front face of the upper clamping plate 21, and the outer periphery of the sliding rod 47 penetrates and is slidably connected to the inner side of the bottom of the upper clamping plate 21. When the bottom of the upper clamping plate 21 contacts the top of the pipe segment, the top of the pipe segment will squeeze the rubber gasket 2 48, so that the rubber gasket 2 48 drives the movable rod 46 to move, thereby causing the slider 45 to drive the hinged rod 43 to move, and at the same time causing the moving rod 42 to drive the pressure plate 41 to move, so that the pressure plate 41 can abut against the front face of the pipe segment, thereby fixing the front direction of the pipe segment, and the guide rod 44 is fixedly installed on the inner side of the upper clamping plate 21, and a groove is provided at the bottom of the upper clamping plate 21. By providing the groove, the movement trajectory of the movable rod 46 is avoided from being blocked.

[0037] Reference Figure 4 and Figure 5There are two clamping mechanisms 4, which are symmetrically distributed on the inner sides of the upper clamping plate 21 and the lower clamping plate 24. By providing two clamping mechanisms 4, when the upper clamping plate 21 and the lower clamping plate 24 clamp and fix the top and bottom of the pipe segment, the pressing plates 41 arranged on the upper clamping plate 21 and the lower clamping plate 24 can respectively clamp and fix the front top and the front bottom of the pipe segment, thereby improving the force uniformity of the pipe segment.

[0038] Reference Figure 2 The fixing mechanism 2 also includes a cylindrical rod 27, a frame 28 and a threaded rod 29. The cylindrical rod 27 is fixedly installed on the inner side of the back side of the lower clamping plate 24. Through the moving effect of the cylindrical rod 27, the lower clamping plate 24 and the fixing rod 25 can be driven to move, thereby driving the upper clamping plate 21 to move. The cylindrical rod 27 is slidably connected to the inner side of the frame 28. The inner side of the frame 28 is provided with a groove for the cylindrical rod 27 to move in a small range. The frame 28 is slidably connected to the inner side of the back side of the mounting plate 1. When the frame 28 slides upward, the cylindrical rod 27 contacts the inner bottom of the frame 28, so that the frame 28 can drive the cylindrical rod 27 upward. The outer circumference of the threaded rod 29 penetrates and is threadedly connected to the inner side of the top of the frame 28, and the outer circumference of the threaded rod 29 penetrates and is rotatably connected to the inner side of the top of the mounting plate 1. A handle is provided on the top of the threaded rod 29, which facilitates the staff to rotate the threaded rod 29, thereby driving the frame 28 to move vertically, so as to achieve the clamping and fixing effect of the pipe segment. When the lifting ring 34 and the lifting hook 36 are installed, the pulling force of the lifting rope 32 will act on the lower clamping plate 24, so as to improve the clamping and fixing effect of the lower clamping plate 24 on the pipe segment when it moves upward. When the lifting ring 34 slips off, the frame 28 plays a limiting role, thereby providing double protection for the pipe segment.

[0039] The anti-slip device for the vertical lifting of the pipe segment, through the set fixing mechanism, enables the staff to quickly fix the pipe segment by screwing a group of threaded rods, thereby improving the lifting efficiency of the pipe segment and reducing the labor of the staff. At the same time, through the set lifting mechanism, the fixing effect of the pipe segment can be further improved by the pulling force of the lifting rope when the pipe segment is lifted, and the lifting rope can be prevented from slipping, thereby improving the use effect and safety performance of the anti-slip device for the pipe segment. In addition, through the set clamping mechanism, when the top and bottom of the pipe segment are clamped and fixed, the front of the pipe segment can be clamped by the pressing plate at the same time, which further improves the fixing effect of the pipe segment and prevents the pipe segment from loosening and slipping, thereby further improving the use effect and safety of the anti-slip device for the pipe segment.

[0040] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. The anti-slip device for the vertical lifting of pipe segments is characterized by: The invention comprises a mounting plate (1), a fixing mechanism (2), a lifting mechanism (3) and a pressing mechanism (4), wherein the fixing mechanism (2) is located on the inner side of the mounting plate (1), and is used to connect the lifting equipment. The lifting mechanism (3) is located on the back side of the mounting plate (1), and is used to lift the pipe segment vertically. The pressing mechanism (4) is fixedly mounted on the fixing mechanism (2), and is used to press and fix the front side of the pipe segment. The fixing mechanism (2) comprises an upper clamping plate (21), four rubber gaskets (22), a connecting rod (23), a lower clamping plate (24), a fixing rod (25) and a bidirectional telescopic rod (26). The upper clamping plate ( The upper clamping plate (21) is slidably mounted on the inner top end of the mounting plate (1), the lower clamping plate (24) is slidably mounted on the inner bottom end of the mounting plate (1), four rubber gaskets (22) are fixedly mounted on the bottom of the upper clamping plate (21) and the top of the lower clamping plate (24), respectively, the connecting rod (23) is fixedly mounted on the back of the upper clamping plate (21), the fixing rod (25) is fixedly mounted on the back of the lower clamping plate (24), one end of the two-way telescopic rod (26) is hinged to the bottom end of the connecting rod (23), the other end of the two-way telescopic rod (26) is hinged to the top end of the fixing rod (25), and the middle part of the two-way telescopic rod (26) is rotatably connected to the inner side of the mounting plate (1).

2. The anti-slip device for lifting straps for vertically lifting pipe segments according to claim 1 is characterized in that: The lifting mechanism (3) comprises a guide mechanism (33), a fixed column (35), a hook (36), a return spring (37) and a clamping rod (38), wherein the fixed column (35) is fixedly mounted on the top of the rear end of the lower clamping plate (24), the hook (36) is fixedly mounted on the top of the fixed column (35), a clamping groove is provided at the bottom end of the hook (36), one end of the return spring (37) is fixedly connected to the inner side of the top end of the hook (36), the other end of the return spring (37) is fixedly mounted on the top of the clamping rod (38), the outer wall of the clamping rod (38) is slidably connected to the inner side of the top end of the hook (36), and the bottom end of the clamping rod (38) is clamped to the clamping groove.

3. The anti-slip device for lifting straps for vertically lifting pipe segments according to claim 2 is characterized in that: The guide mechanism (33) comprises a fixed block (331), an arc-shaped plate (332), an insertion rod (333), a spring (334), a pull rod (335) and a U-shaped plate (336). The fixed block (331) is fixedly mounted on the back of the mounting plate (1). The outer wall of the arc-shaped plate (332) is hinged to the inner side of the left end of the fixed block (331). A slot is provided on the right side of the arc-shaped plate (332). The insertion rod (333) is fixedly mounted on the left side of the U-shaped plate (336). The spring (334) is One end of the spring (334) is fixedly connected to the inner side of the fixed block (331), the other end of the spring (334) is fixedly installed on the right side of the U-shaped plate (336), the outer periphery of the U-shaped plate (336) is slidably connected to the inner side of the fixed block (331), the pull rod (335) is fixedly installed on the right side of the U-shaped plate (336), the outer periphery of the pull rod (335) penetrates and is slidably connected to the right inner wall of the fixed block (331), and the outer wall of the insertion rod (333) is clamped with the inner side of the slot.

4. The anti-slip device for lifting straps for vertically lifting pipe segments according to claim 2 is characterized in that: The lifting mechanism (3) further comprises a connecting plate (31), a lifting rope (32) and a lifting ring (34); the lifting rope (32) is fixedly mounted on the bottom of the connecting plate (31); the lifting ring (34) is fixedly mounted on the bottom end of the lifting rope (32); and the lifting ring (34) is sleeved on the inner side of the lifting hook (36).

5. The anti-slip device for lifting straps for vertically lifting pipe segments according to claim 1 is characterized in that: The clamping mechanism (4) comprises a pressing plate (41), a moving rod (42), a hinged rod (43), a guide rod (44), a slider (45), a movable rod (46), a sliding rod (47), a second rubber gasket (48) and a compression spring (49). The moving rod (42) is fixedly mounted on the top of the back side of the pressing plate (41). One end of the hinged rod (43) is hinged to the back side of the moving rod (42). The other end of the hinged rod (43) is hinged to the front side of the slider (45). The block (45) is slidably connected to the outer wall of the guide rod (44), one end of the movable rod (46) is rotatably connected to the back of the slider (45), the other end of the movable rod (46) is hinged to the outer wall of the second rubber gasket (48), the second rubber gasket (48) is fixedly installed on the top of the sliding rod (47), one end of the compression spring (49) is fixedly connected to the inner side of the upper clamping plate (21), and the other end of the compression spring (49) is fixedly installed on the outer wall of the slider (45).

6. The anti-slip device for lifting straps for vertically lifting pipe segments according to claim 5, characterized in that: The outer periphery of the moving rod (42) penetrates and is slidably connected to the inner side of the front surface of the upper clamping plate (21), the outer periphery of the sliding rod (47) penetrates and is slidably connected to the inner side of the bottom of the upper clamping plate (21), the guide rod (44) is fixedly mounted on the inner side of the upper clamping plate (21), and a groove is provided at the bottom of the upper clamping plate (21).

7. The anti-slip device for lifting straps for vertically lifting pipe segments according to claim 5, characterized in that: Two clamping mechanisms (4) are provided, and the two clamping mechanisms (4) are symmetrically distributed on the inner sides of the upper clamping plate (21) and the lower clamping plate (24), respectively.

8. The anti-slip device for lifting straps for vertically lifting pipe segments according to claim 1, characterized in that: The fixing mechanism (2) further comprises a cylindrical rod (27), a frame (28) and a threaded rod (29); the cylindrical rod (27) is fixedly mounted on the inner side of the back side of the lower clamping plate (24); the cylindrical rod (27) is slidably connected to the inner side of the frame (28); the frame (28) is slidably connected to the inner side of the back side of the mounting plate (1); the outer periphery of the threaded rod (29) penetrates and is threadedly connected to the inner side of the top of the frame (28); and the outer periphery of the threaded rod (29) penetrates and is rotatably connected to the inner side of the top of the mounting plate (1).

Images