Climbing self-locking device and anti-falling device

Abstract

The invention relates to the technical field of high-altitude operation of a power transmission tower, and discloses a climbing self-locking device and an anti-falling device comprising the climbing self-locking device, the anti-falling device further comprises a stainless steel stranded wire and an anti-windage yaw device which are fixed on the tower, the anti-windage yaw device comprises a mounting plate, a connecting rod and a limiting pipe, the mounting plate is fixed on the tower, and the connecting rod is connected with the limiting pipe. The limiting pipe accommodates and limits the stainless steel stranded wire; the connecting rod is fixedly connected with the mounting plate and the limiting pipe respectively; the climbing self-locking device comprises a shell and a locking rod, the shell comprises an extrusion pipe, an extrusion head and a connector are arranged at the two ends of the locking rod, the locking rod can swing in the shell in a reciprocating mode so that the extrusion head can be close to or away from the extrusion pipe, the extrusion head and the extrusion pipe are matched to clamp or loosen the stainless steel stranded wire, and the connector is connected with the safety rope. The problems of stainless steel stranded wire abrasion and strand breakage caused by a traditional opening type wind deflection prevention device are solved, the climbing self-locking device can pass through the wind deflection prevention device without obstacles, manual adjustment is not needed, and the safety protection effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of high-altitude operations on power transmission towers, and in particular to a climbing self-locking device and an anti-falling device comprising the climbing self-locking device. Background Art

[0002] In the field of long-distance power transmission, in order to inspect and repair line equipment, power workers often need to climb to the top of the transmission tower to perform aerial work. In order to ensure the personal safety of power workers when climbing up and down the tower and during the inspection and maintenance process, a fall prevention device needs to be installed on the transmission tower. The fall prevention device located on the outside of the transmission tower is connected to the safety belt (hook) on the power worker to prevent the power worker from accidentally falling when working at high altitude.

[0003] For example, the Chinese patent "A device for preventing falling from high altitude work" with authorization announcement number CN220276153U discloses a device for preventing falling from high altitude work, which includes a main material, a plurality of clamping plates are arranged on the surface of the main material, the clamping plates are fixed to the surface of the main material by clamping bolts, the surface of the clamping plates are provided with foot nails, a connecting plate is arranged on one side of the clamping plate, a stainless steel strand is arranged at the bottom end of the connecting plate, a basket bolt is arranged at the bottom end of the stainless steel strand, and a wind deflection prevention device is arranged on the surface of the main material corresponding to the stainless steel strand.

[0004] The upper and lower ends of the above-mentioned anti-fall device are fixed to the main material of the tower body through clamps and foot nails, and there is a vertical stainless steel strand between the upper and lower ends. The stainless steel strand fixed on the tower body can provide effective safety protection for the power workers when they go up and down the tower and during construction work when the power workers connect their own safety belts (hooks) to the climbing self-locking device.

[0005] However, the climbing self-locking device of the above-mentioned anti-fall device often needs to be manually adjusted when passing through the anti-wind deviation device along the stainless steel stranded wire, and the anti-wind deviation device is a traditional open type. Long-term use will cause industry pain points such as wear and breakage of the stainless steel stranded wire, so it still needs to be improved. Summary of the invention

[0006] In view of the problems existing in the prior art: the climbing self-locking device of the existing anti-fall device often needs to be manually adjusted when passing through the anti-wind deflection device along the stainless steel stranded wire, and the long-term use of the anti-wind deflection device will cause the stainless steel stranded wire to wear, break and other problems. The purpose of the present invention is to provide a climbing self-locking device and a corresponding anti-fall device. By redesigning the climbing self-locking device and the anti-wind deflection device, the problems of stainless steel stranded wire wear, breakage and other problems caused by the traditional open-type anti-wind deflection device are overcome, and the climbing self-locking device can pass through the anti-wind deflection device unimpeded without manual adjustment, thereby further improving the safety protection effect on construction personnel.

[0007] To achieve the above object, the technical solution of the present invention is: A climbing self-locking device, which can slide along a stainless steel strand, comprises a shell, a locking rod, a movable baffle, a locking mechanism and a first fixed column, wherein the shell comprises an extrusion tube and an upper cover and a lower cover parallel to each other, wherein the extrusion tube and the lower cover are integrally arranged and a passage for the stainless steel strand to enter and exit the extrusion tube is reserved between the extrusion tube and the upper cover, wherein the first fixed column is perpendicular to the lower cover and is located between the upper cover and the lower cover, wherein the locking rod is sleeved on the first fixed column and takes the first fixed column as a rotating shaft, wherein the two ends of the locking rod are respectively an extrusion head and a connecting head, wherein the extrusion head is arranged toward the extrusion tube, and wherein the locking rod reciprocates with the first fixed column as an axis to rotate. The extrusion head is moved closer to or away from the extrusion tube, and the extrusion head cooperates with the extrusion tube to clamp or loosen the stainless steel stranded wire. The connecting head swings in the opposite direction to the extrusion head, and the connecting head is used to connect with other safety ropes. The movable baffle is located between the upper cover and the locking rod, and the locking mechanism is located between the upper cover and the lower cover. The locking mechanism is used to lock or release the movable baffle. After the locking mechanism releases the movable baffle, the movable baffle can be freely extended or retracted into the shell range between the upper cover and the lower cover; after the locking mechanism locks the movable baffle, the movable baffle is limited to a position extending out of the shell range between the upper cover and the lower cover.

[0008] The present invention is further configured as follows: a first elastic member is provided between the first fixing column and the locking rod, and the first elastic member applies elastic force to the locking rod to make the extrusion head close to the extrusion tube.

[0009] The present invention is further configured as follows: when the movable baffle extends out of the shell range between the upper cover and the lower cover, the movable baffle is close to the extrusion tube and the distance between the movable baffle and the extrusion tube is less than the diameter of the stainless steel strand; when the movable baffle is retracted into the shell range between the upper cover and the lower cover, the movable baffle is away from the extrusion tube and the distance between the movable baffle and the extrusion tube is greater than or equal to the diameter of the stainless steel strand.

[0010] The present invention is further configured to include: a fourth fixed column, which is perpendicular to the lower cover and located between the upper cover and the lower cover, the movable baffle is sleeved on the fourth fixed column and can swing back and forth with the fourth fixed column as a rotating axis, and the movable baffle approaches or moves away from the extrusion tube on the side facing the extrusion tube during the swinging process.

[0011] The present invention is further configured as follows: the locking mechanism includes a lifting column, the lifting column is perpendicular to the lower cover and can move axially between the upper cover and the lower cover, the movable baffle is provided with a limiting groove with an opening toward the lifting column, the lifting column can enter the limiting groove and be clamped with the limiting groove, and the lifting column and the limiting groove cooperate to jointly lock or release the movable baffle.

[0012] The present invention is further configured as follows: the lifting column includes a first column, a second column and a third column which are integrally arranged and have overlapping axes; the first column can pass through the upper cover and the third column can pass through the lower cover; the second column is located between the first column and the third column and the diameters of the first column and the third column are both smaller than the diameter of the second column; the second column is used to cooperate with the limiting groove to lock the movable baffle, and the movable baffle is unlocked after the second column leaves the limiting groove.

[0013] The present invention is further configured as follows: the lifting column also includes a second elastic member, the second elastic member is located between the lower cover and the second column, the second elastic member applies elastic force to the lifting column to maintain the clamping state of the second column and the limiting groove, and when the second column and the limiting groove are in the clamping state, the first column protrudes from the upper cover.

[0014] The present invention also provides an anti-fall device, including a stainless steel stranded wire fixed on an iron tower, an anti-wind deviation device and the above-mentioned climbing self-locking device, the anti-wind deviation device includes a mounting plate, a connecting rod and a limiting tube, the mounting plate is fixed on the iron tower, the limiting tube accommodates and limits the stainless steel stranded wire, and the two ends of the connecting rod are fixedly connected to the mounting plate and the limiting tube respectively.

[0015] The present invention is further configured as follows: a first opening, a second opening and a third opening are continuously arranged on the limiting tube along the axial direction; the opening sizes of the first opening, the second opening and the third opening are all capable of allowing the stainless steel stranded wire to pass through; the opening directions of the first opening and the third opening are exactly the same; and there is an angle between the opening direction of the second opening and the opening direction of the first opening.

[0016] The present invention is further configured as follows: the connecting rod can pass through the gap between the movable baffle and the extrusion tube when the movable baffle is in a state close to the extrusion tube, and the limiting tube can pass through the gap between the extrusion head and the extrusion tube when the extrusion head is in a state away from the extrusion tube.

[0017] In summary, the beneficial effects achieved by the present invention are as follows: (1) By improving the anti-wind deflection device, the stainless steel stranded wire can enter the interior of the limiting tube from the three openings on the limiting tube through a certain degree of bending and twisting. The limiting tube can tightly wrap and limit the stainless steel stranded wire, which not only avoids the problems of wear and breakage of the stainless steel stranded wire, but also further reduces the shaking amplitude of the stainless steel stranded wire, thereby enhancing the anti-wind deflection effect; (2) The climbing self-locking device uses the extrusion head of the locking rod and the extrusion tube to clamp the stainless steel stranded wire. When the worker drives the climbing self-locking device to climb up, the worker drives one end of the connecting head to swing upward, and the extrusion head at the other end of the locking rod swings downward and retracts into the shell. In the event of an accidental fall, the worker drives the connecting head to swing downward, so that the extrusion head swings upward and extends out of the shell and cooperates with the extrusion tube to clamp the stainless steel stranded wire to prevent accidents. (3) The movable baffle and the locking mechanism can prevent the stainless steel stranded wire from falling out of the extrusion tube by itself, and the design of the lifting column protruding from the shell makes it easy for workers to control the movable baffle to enter and exit the shell, so that workers can easily load the stainless steel stranded wire into the extrusion tube; (4) The inner groove and the outer groove on the movable baffle cooperate with the first column and the second column of the lifting column respectively, so that the movable baffle can be easily switched between the state of freely entering and exiting the shell and the state of being limited and locked outside the shell, which is convenient for workers to install the climbing self-locking device on the stainless steel strand and prevent the stainless steel strand from falling out of the extrusion tube by itself; (5) When the anti-wind deflection device and the climbing self-locking device are used in conjunction with each other, the connecting rod can pass through the gap channel between the movable baffle and the extrusion tube, and the limiting tube can pass through the gap channel between the extrusion head and the extrusion tube, so that when the worker drives the climbing self-locking device to slide upward along the stainless steel stranded wire, it can pass through the anti-wind deflection device on the stainless steel stranded wire without obstacles. There is no need for the worker to manually adjust the climbing self-locking device during the climbing process, which not only improves the climbing efficiency of the workers, but also improves the safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the specification will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 The structure of the fall prevention device Figure 1 ; Figure 2 The structure of the fall prevention device Figure 2 ; Figure 3 Indicates the status of the climbing self-locking device Figure 1 ; Figure 4 Indicates the status of the climbing self-locking device Figure 2 ; Figure 5 Schematic diagram of the structure of the climbing self-locking device after removing the upper cover Figure 1 ; Figure 6 Schematic diagram of the structure of the climbing self-locking device after removing the upper cover Figure 2 ; Figure 7 It is a structural schematic diagram of the lower cover and the locking rod; Figure 8 It is a structural schematic diagram of a movable baffle; Fig. 9 The structure diagram of the movable baffle and lifting column Figure 1 ; Fig.10 The structure diagram of the movable baffle and lifting column Figure 2 ; Fig.11 Schematic diagram of the structure of the wind deflection prevention device Figure 1 ; Fig.12 Schematic diagram of the structure of the wind deflection prevention device Figure 2 .

[0020] In the figure: 1, stainless steel strand; 2, climbing self-locking device; 21, housing; 211, upper cover; 212, lower cover; 213, extrusion tube; 22, locking rod; 221, extrusion head; 2211, pattern groove; 222, connector; 23, first fixed column; 231, first elastic member; 24, second fixed column; 25, third fixed column; 26, movable baffle; 261, toggle head; 2611, roller; 262, travel groove; 263, limit groove; 26 31. Inner groove; 2632. Outer groove; 27. Fourth fixing column; 28. Lifting column; 281. First column; 282. Second column; 283. Third column; 284. Second elastic member; 29. ​​Reset assembly; 291. Fixing rod; 292. Third elastic member; 3. Anti-wind deflection device; 31. Mounting plate; 32. Positioning plate; 33. Connecting rod; 34. Limiting tube; 341. First opening; 342. Second opening; 343. Third opening. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "up", "down", "inside", "outside", "bottom", etc. used in this specification indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.

[0022] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present invention.

[0023] As attached Figure 1-2 As shown, a fall prevention device includes a stainless steel stranded wire 1, a wind deflection prevention device 3 and a climbing self-locking device 2.

[0024] The stainless steel strand 1 is vertically fixed to the outside of the tower body by the existing technology, providing safety protection for workers climbing the tower. The wind deflection prevention device 3 is used to fix the stainless steel strand 1 to the outside of the tower body, preventing the stainless steel strand 1 from contacting the tower body and preventing the stainless steel strand 1 from shaking. The climbing self-locking device 2 can slide up and down along the stainless steel strand 1, and the workers can connect their own safety ropes to the climbing self-locking device 2 when climbing the tower. The climbing self-locking device 2 can lock the stainless steel strand 1 to prevent safety accidents when the workers fall accidentally.

[0025] As attached Figure 3-6 As shown, the climbing self-locking device 2 includes a housing 21 , a locking rod 22 , a first fixing column 23 , a second fixing column 24 and a third fixing column 25 .

[0026] The housing 21 is the main body of the climbing self-locking device 2 , and includes an upper cover 211 , a lower cover 212 and an extrusion tube 213 .

[0027] The upper cover 211 and the lower cover 212 are both flat plate structures, and the upper cover 211 and the lower cover 212 are arranged parallel to each other. The upper cover 211 and the lower cover 212 are installed and fixed by three fixing columns, and a side plate is arranged at the edge position between the upper cover 211 and the lower cover 212.

[0028] The extrusion tube 213 is a semi-enclosed tubular structure with an arc-shaped cross section, and its opening direction faces the upper cover 211, and the extrusion tube 213 is integrally arranged with the lower cover 212 on one side of its length direction. The gap channel between the extrusion tube 213 and the upper cover 211 allows the stainless steel strand 1 to enter and exit the extrusion tube 213, and the semi-enclosed structure of the extrusion tube 213 can better wrap and accommodate the stainless steel strand 1. In particular, in order to facilitate the sliding of the climbing self-locking device 2 on the stainless steel strand 1 and prevent excessive friction between the edge of the extrusion tube 213 and the stainless steel strand 1, both ends of the extrusion tube 213 are provided with chamfers.

[0029] As attached Figure 4-7 As shown, the two ends of the locking rod 22 in the length direction are respectively an extrusion head 221 and a connection head 222, wherein the extrusion head 221 is arranged toward the extrusion tube 213. A through hole is provided at the middle position of the locking rod 22 for the first fixing column 23 to pass through.

[0030] The first fixing column 23 is a cylindrical columnar structure, which is perpendicular to the lower cover 212 and fixed between the upper cover 211 and the lower cover 212. The locking rod 22 is sleeved on the first fixing column 23 and uses the first fixing column 23 as a rotating shaft, so that the locking rod 22 can swing back and forth within a certain angle range along the axis of the first fixing shaft. And because the sleeve position of the locking rod 22 and the first fixing column 23 is located at the middle position of the locking rod 22, during the swinging process of the locking rod 22, the swinging directions of the connecting head 222 and the extrusion head 221 are opposite.

[0031] The second fixing column 24 and the third fixing column 25 are used to realize the installation and fixation between the upper cover 211 and the lower cover 212, and the second fixing column 24 and the third fixing column 25 are respectively located on both sides of the swing direction of the locking rod 22. The second fixing column 24 is located at one end where the extrusion head 221 is located. During the swinging process of the locking rod 22, the second fixing column 24 and the side wall between the upper cover 211 and the lower cover 212 can abut against the locking rod 22 to prevent the locking rod 22 from swinging too much.

[0032] The extrusion head 221 can approach or move away from the extrusion tube 213 during the swinging of the locking rod 22. When the extrusion head 221 approaches the extrusion tube 213, the extrusion head 221 extends from the housing 21 between the upper cover 211 and the lower cover 212. At this time, the extrusion head 221 and the extrusion tube 213 cooperate to clamp the stainless steel strand 1 to prevent the worker from falling; when the extrusion head 221 moves away from the extrusion tube 213, the extrusion head 221 returns to the space of the housing 21 between the upper cover 211 and the lower cover 212. At this time, the extrusion head 221 and the extrusion tube 213 have no clamping and fixing effect on the stainless steel strand 1, and the worker can drive the climbing self-locking device 2 to slide freely along the stainless steel strand 1.

[0033] The extrusion head 221 is provided with a patterned groove 2211 adapted to the length direction of the stainless steel stranded wire 1 . The patterned groove 2211 is recessed at the end of the extrusion head 221 , and a texture for increasing the friction coefficient is provided at the bottom of the groove, thereby enhancing the clamping and fixing ability of the stainless steel stranded wire 1 .

[0034] A first elastic member 231 is provided between the first fixing column 23 and the locking rod 22. The first elastic member 231 may be a torsion spring or a spring. When the connecting head 222 swings in a direction away from the third fixing column 25, the extrusion head 221 swings in the opposite direction. When the extrusion head 221 returns to the space of the housing 21 between the upper cover 211 and the lower cover 212, the first elastic member 231 will be compressed. Therefore, in a natural state, the first elastic member 231 will apply elastic force to the locking rod 22 to maintain the natural clamping effect of the extrusion head 221 and the extrusion tube 213 on the stainless steel strand 1.

[0035] The connector 222 is protruding from the housing 21 , and is provided with a circular through hole for connecting with other safety ropes or devices.

[0036] As attached Figure 5-6 and attached Figure 8-10 As shown, the climbing self-locking device 2 further includes a movable baffle 26 , a fourth fixing column 27 , a lifting column 28 and a reset assembly 29 .

[0037] The movable baffle 26 is a plate-like structure disposed between the upper cover 211 and the locking rod 22, and its main part is located inside the housing 21 between the upper cover 211 and the lower cover 212, and only the toggle head 261 at one end is located outside the housing 21. The movable baffle 26 is used to block the gap channel between the upper cover 211 and the extrusion tube 213 after the stainless steel strand 1 enters the extrusion tube 213, so as to prevent the stainless steel strand 1 from escaping from the extrusion tube 213 by itself.

[0038] One end of the movable baffle 26 away from the toggle head 261 is sleeved on the fourth fixing post 27 and reciprocates within a certain angle range with the fourth fixing post 27 as a rotation axis.

[0039] The fourth fixing column 27 perpendicular to the lower cover 212 is located between the upper cover 211 and the lower cover 212 and is located on the side close to the extrusion tube 213. Therefore, during the swinging process of the movable baffle 26, the side of the movable baffle 26 facing the extrusion tube 213 can be close to or away from the extrusion tube 213. In addition, when the movable baffle 26 is close to the extrusion tube 213, the distance between the movable baffle 26 and the extrusion tube 213 is less than the diameter of the stainless steel strand 1, and the movable baffle 26 has the effect of preventing the stainless steel strand 1 from slipping out; and when the movable baffle 26 is far away from the extrusion tube 213, the distance between the movable baffle 26 and the extrusion tube 213 is greater than or equal to (usually greater than) the diameter of the stainless steel strand 1, and the worker can remove the climbing self-locking device 2 from the stainless steel strand 1.

[0040] In order to prevent the movable baffle 26 from interfering with the second fixed column 24 during the swinging process, a travel groove 262 is provided at the corresponding position of the movable baffle 26 for the second fixed column 24 to freely enter and exit, thereby ensuring that the movable baffle 26 can swing smoothly.

[0041] The movable baffle 26 is also provided with a limit groove 263. The locking mechanism formed by the limit groove 263 and the lifting column 28 can limit, lock or release the movable baffle 26, thereby preventing the movable baffle 26 from swinging by itself and causing the stainless steel stranded wire 1 in the extrusion tube 213 to escape.

[0042] Specifically, the lifting column 28 includes a second elastic member 284 and a first column 281, a second column 282 and a third column 283 which are integrally arranged and have coincident axes. The lifting column 28 is perpendicular to the lower cover 212 as a whole and can move axially between the upper cover 211 and the lower cover 212. Through holes are provided on the upper cover 211 and the lower cover 212 so that the first column 281 can pass through the upper cover 211 and the third column 283 can pass through the lower cover 212. The second column 282 is located between the first column 281 and the third column 283, and the diameters of the first column 281 and the third column 283 are both smaller than the diameter of the second column 282.

[0043] The second elastic member 284 is located between the lower cover 212 and the second column 282. In this embodiment, the second elastic member 284 is a spring, and the diameter of the spring is smaller than the diameter of the second column 282. The spring sleeved on the third column 283 is compressed when the lifting column 28 moves axially toward the lower cover 212, so that the second elastic member 284 can apply elastic force to the second column 282. In the natural state of the second elastic member 284, the top of the first column 281 passes through and is in a position protruding from the upper cover 211.

[0044] The limiting groove 263 is U-shaped as a whole, and its opening faces the lifting column 28. The limiting groove 263 is composed of an inner groove 2631 and an outer groove 2632. The inner groove 2631 is in an arc shape, and its contour shape is adapted to the contour shape of the first column 281, and the second column 282 cannot enter the inner groove 2631; the outer groove 2632 is more open, and is V-shaped, and its contour size allows the second column 282 to enter. Since the diameter of the second column 282 is larger than that of the first column 281, and the second column 282 cannot enter the inner groove 2631, when the second column 282 enters the limiting groove 263, the second column 282 is stuck in the outer groove 2632, and at this time, the second column 282 is engaged with the limiting groove 263, so that the movable baffle 26 cannot swing further toward the side where the lifting column 28 is located. When the first column 281 enters the limiting groove 263, the first column 281 can directly enter the inner groove 2631. Compared with the position of the movable baffle 26 when the second column 282 is clamped in the outer groove 2632, the movable baffle 26 can further swing toward the side where the lifting column 28 is located, and the distance between the inner groove 2631 and the axis of the lifting column 28 is further reduced. In addition, the arc shape of the inner groove 2631 also facilitates the free rotation between the first column 281 and the inner groove 2631.

[0045] In the present invention, when the second column 282 enters the limiting groove 263, the movable baffle 26 is in a state of extending out of the range of the shell 21 between the upper cover 211 and the lower cover 212 and continues to maintain the current state due to the limiting locking effect of the second column 282 and the limiting groove 263; and when the first column 281 enters the limiting groove 263, the locking state of the movable baffle 26 by the locking mechanism is released, and the movable baffle 26 is in a state where it can extend out of the shell 21 or retract into the shell 21 at will.

[0046] When the climbing self-locking device 2 is in a natural state, due to the elastic force of the second elastic member 284, the top of the first column 281 passes through the upper cover 211 and protrudes from the upper cover 211. At this time, the second column 282 of the lifting column 28 is in a clamping state with the outer groove 2632 of the limiting groove 263, and the movable baffle 26 is in a state of extending out of the range of the housing 21 between the upper cover 211 and the lower cover 212, and the movable baffle 26 is limited to a position close to the extrusion tube 213 and cannot swing freely. When in use, the worker overcomes the elastic force of the second elastic member 284 and presses the first column 281. While the first column 281 is pressed into the upper cover 211, the second column 282 simultaneously moves downward to disengage from the limiting groove 263, and the first column 281 enters the limiting groove 263. At this time, the movable baffle 26 can be away from the extrusion tube 213, so that the stainless steel strand 1 can enter the extrusion tube 213. Afterwards, the worker releases the pressure on the first column 281 , and under the elastic force of the second elastic member 284 , the second column 282 enters the limiting groove 263 and maintains the clamping state with the outer groove 2632 , so that the second column 282 cooperates with the limiting groove 263 to limit the movable baffle 26 .

[0047] As attached Figure 5 and attached Figure 6 As shown, the reset assembly 29 includes a fixed rod 291 and a third elastic member 292. The fixed rod 291 is fixedly connected to the movable baffle 26, and the two ends of the third elastic member 292 are respectively fixed to the lifting column 28 and the fourth fixed column 27. When the movable baffle 26 rotates in a direction away from the extrusion tube 213, the movable baffle 26 drives the fixed rod 291 to squeeze the third elastic member 292, so that the third elastic member 292 can push the movable baffle 26 to rotate in the direction of the extrusion tube 213 under the action of elastic force.

[0048] In particular, in order to facilitate workers to push the movable baffle 26 into the housing 21, the toggle head 261 at the end of the movable baffle 26 is arranged outside the housing 21. A slot for the movable baffle 26 to pass through is also provided on the side plate between the upper cover 211 and the lower cover 212. A roller 2611 capable of rolling along the stainless steel strand 1 is also provided on the toggle head 261.

[0049] As attached Fig.11 and attached Fig.12As shown, the wind deflection prevention device 3 includes a mounting plate 31 , a positioning plate 32 , a connecting rod 33 and a limiting tube 34 .

[0050] The mounting plate 31 is provided with through holes for bolts to pass through, so that the entire wind deflection protection device 3 can be fixed on the iron tower. There is a certain angle between the two end surfaces of the mounting plate 31, and the positioning plate 32 and the mounting plate 31 are fixedly connected by bolts.

[0051] The connecting rod 33 is an L-shaped structure, one end of which is integrally provided with the positioning plate 32, and the other end is fixedly connected to the middle part of the limiting tube 34. In this embodiment, the two ends of the connecting rod 33 are perpendicular to each other, and the length of the end fixedly connected to the limiting tube 34 is greater than the thickness of the housing 21.

[0052] The limiting tube 34 is a semi-open tubular structure, and its inner diameter is not less than the outer diameter of the stainless steel strand 1. Generally, the inner diameter of the limiting tube 34 is slightly larger than the outer diameter of the stainless steel strand 1, so that the limiting tube 34 can accommodate and limit the stainless steel strand 1.

[0053] Specifically, the limiting tube 34 is continuously provided with a first opening 341, a second opening 342 and a third opening 343 along its own axial direction, and the opening sizes of the first opening 341, the second opening 342 and the third opening 343 are all sufficient for the stainless steel strand 1 to pass through. Moreover, the opening direction and opening size of the first opening 341 and the third opening 343 are exactly the same, while there is an angle between the opening direction of the second opening 342 and the opening direction of the first opening 341. Therefore, when the stainless steel strand 1 is loaded into the limiting tube 34, the worker can make the stainless steel strand 1 enter the limiting tube 34 through the three openings in succession by bending and twisting the stainless steel strand 1 to a certain extent. Since the three openings are continuously provided in different opening directions, the stainless steel strand 1 vertically provided on the iron tower cannot escape from the limiting tube 34 by itself. Since the limiting tube 34 and the stainless steel stranded wire 1 fit closely together, the friction caused by shaking between the limiting tube 34 and the stainless steel stranded wire 1 is effectively reduced, thereby avoiding the problems of wear and breakage of the stainless steel stranded wire 1; and the limiting tube 34 and the iron tower are rigidly connected, thereby greatly reducing the shaking amplitude of the stainless steel stranded wire 1.

[0054] As attached Figure 1-2 and attached Figure 11-12 As shown, in the vertical direction, since the thickness of the connecting rod 33 is small and the length of one end of the connecting rod 33 fixedly connected to the limiting tube 34 is greater than the thickness of the shell 21, even when the distance between the movable baffle 26 and the extrusion tube 213 is the smallest, the connecting rod 33 can still pass through the gap between the movable baffle 26 and the extrusion tube 213.

[0055] Moreover, the outer diameter of the limit tube 34 is smaller than the inner diameter of the extrusion tube 213, so when the extrusion head 221 is far away from the extrusion tube 213, the limit tube 34 can also pass through the gap between the extrusion head 221 and the extrusion tube 213. Therefore, when the worker drives the climbing self-locking device 2 to continuously climb along the stainless steel strand 1, the climbing self-locking device 2 located below the wind deflection prevention device 3 can pass through the wind deflection prevention device 3 without obstacles, and the worker does not need to manually adjust it, thereby ensuring the safety of the worker during the climbing process.

[0056] The implementation principle of the above embodiment is: In the anti-fall device of the present invention, the stainless steel strand 1 is suspended and fixed on the iron tower. After the stainless steel strand 1 enters a series of wind deflection devices 3 arranged along the height direction of the tower body, the wind deflection devices 3 firmly fix the stainless steel strand 1 on the outside of the tower body. When a worker needs to climb the iron tower for high-altitude work, the worker wears a safety rope and ties the safety rope to the connector 222 of the climbing self-locking device 2. The direction of the climbing self-locking device 2 is adjusted so that the extrusion tube 213 is parallel to the length direction of the stainless steel strand 1 and the toggle head 261 is at the top of the climbing self-locking device 2. The first column 281 is pressed axially, and the second column 282 moves synchronously to disengage the limit groove 263. At this time, the toggle head 261 can be toggled in the direction away from the stainless steel strand 1, and the movable baffle 26 can be completely retracted into the housing 21 away from the extrusion tube 213, so that the stainless steel strand 1 can enter the extrusion tube 213 from the gap channel between the extrusion tube 213 and the upper cover 211. After that, the worker releases the pressure on the first column 281 and the pulling force on the toggle head 261, and the movable baffle 26 extends out from the housing 21 under the action of the third elastic member 292; and under the elastic force of the second elastic member 284, the second column 282 enters the limiting groove 263 and maintains the clamping state with the limiting groove 263, so that the second column 282 cooperates with the outer groove 2632 of the limiting groove 263 to limit the movable baffle 26 and prevent the movable baffle 26 from retracting into the housing 21 by itself. After the movable baffle 26 extends out of the housing 21, the gap between the movable baffle 26 and the extrusion tube 213 is smaller than the diameter of the stainless steel strand 1, so that the climbing self-locking device 2 is firmly installed on the stainless steel strand 1. In the process of climbing upward, the worker will continuously pull the connecting head 222 upward, and the connecting head 222 swings upward while the extrusion head 221 swings downward, so that the extrusion head 221 retracts into the housing 21, which is convenient for the climbing self-locking device 2 to slide upward along the stainless steel strand 1. When an accidental fall occurs, the worker drives the connecting head 222 to swing downward rapidly, and the extrusion head 221 swings upward in the opposite direction. The extrusion head 221 is quickly extended from the shell 21, and the patterned groove 2211 on the extrusion head 221 cooperates with the extrusion tube 213 to quickly clamp the stainless steel stranded wire 1, effectively preventing the worker from falling and protecting the worker's safety throughout the process.

[0057] When workers encounter the anti-wind deflection device 3 during the process of climbing upwards, the connecting rod 33 can pass through the gap between the movable baffle 26 and the extrusion tube 213, and the limiting tube 34 can also pass through the gap between the extrusion head 221 and the extrusion tube 213, so that the climbing self-locking device 2 below can pass through the anti-wind deflection device 3 unimpeded. During the process of workers climbing the tower, there is no need for workers to manually adjust the position of the climbing self-locking device 2, which more effectively ensures the safety of workers during the climbing process.

[0058] Although preferred embodiments of the present invention have been described, additional changes and modifications may be made to these embodiments by those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A climbing self-locking device (2) capable of sliding along a stainless steel strand (1), characterized in that: The invention comprises a housing (21), a locking rod (22), a movable baffle (26), a locking mechanism and a first fixed column (23); the housing (21) comprises an extrusion tube (213) and an upper cover (211) and a lower cover (212) which are parallel to each other; the extrusion tube (213) and the lower cover (212) are integrally arranged, and a passage is left between the extrusion tube (213) and the upper cover (211) for the stainless steel stranded wire (1) to enter and exit the extrusion tube (213); the first fixed column The first fixing post (23) is perpendicular to the lower cover (212) and is located between the upper cover (211) and the lower cover (212). The locking rod (22) is sleeved on the first fixing post (23) and uses the first fixing post (23) as a rotating shaft. The two ends of the locking rod (22) are respectively an extrusion head (221) and a connecting head (222). The extrusion head (221) is arranged toward the extrusion tube (213). The locking rod (22) reciprocates with the first fixing post (23) as an axis to The extrusion head (221) is moved close to or away from the extrusion tube (213), and the extrusion head (221) cooperates with the extrusion tube (213) to clamp or loosen the stainless steel strand (1). The connecting head (222) swings in the opposite direction to the extrusion head (221), and the connecting head (222) is used to connect with other safety ropes. The movable baffle (26) is located between the upper cover (211) and the locking rod (22). The locking mechanism is located between the upper cover (211) and the lower cover (212). The locking mechanism is used to lock or release the movable baffle (26). After the locking mechanism releases the movable baffle (26), the movable baffle (26) can freely extend or retract into the range of the shell (21) between the upper cover (211) and the lower cover (212); after the locking mechanism locks the movable baffle (26), the movable baffle (26) is limited to a position extending out of the range of the shell (21) between the upper cover (211) and the lower cover (212).

2. The climbing self-locking device (2) according to claim 1, characterized in that: A first elastic member (231) is provided between the first fixing column (23) and the locking rod (22), and the first elastic member (231) applies elastic force to the locking rod (22) to bring the extrusion head (221) closer to the extrusion tube (213).

3. The climbing self-locking device (2) according to claim 1, characterized in that: When the movable baffle (26) extends out of the range of the shell (21) between the upper cover (211) and the lower cover (212), the movable baffle (26) is close to the extrusion tube (213) and the distance between the movable baffle (26) and the extrusion tube (213) is less than the diameter of the stainless steel strand (1); when the movable baffle (26) is retracted into the range of the shell (21) between the upper cover (211) and the lower cover (212), the movable baffle (26) is away from the extrusion tube (213) and the distance between the movable baffle (26) and the extrusion tube (213) is greater than or equal to the diameter of the stainless steel strand (1).

4. The climbing self-locking device (2) according to claim 3, characterized in that: The invention also comprises a fourth fixed column (27), wherein the fourth fixed column (27) is perpendicular to the lower cover (212) and is located between the upper cover (211) and the lower cover (212); the movable baffle (26) is sleeved on the fourth fixed column (27) and can swing back and forth with the fourth fixed column (27) as a rotation axis; the side of the movable baffle (26) facing the extrusion tube (213) approaches or moves away from the extrusion tube (213) during the swinging process.

5. The climbing self-locking device (2) according to claim 4, characterized in that: The locking mechanism comprises a lifting column (28), the lifting column (28) being perpendicular to the lower cover (212) and being axially movable between the upper cover (211) and the lower cover (212), the movable baffle (26) being provided with a limiting groove (263) opening toward the lifting column (28), the lifting column (28) being able to enter the limiting groove (263) and be engaged with the limiting groove (263), and the lifting column (28) and the limiting groove (263) cooperating to jointly lock or release the movable baffle (26).

6. The climbing self-locking device (2) according to claim 5, characterized in that: The lifting column (28) comprises a first column (281), a second column (282) and a third column (283) which are integrally arranged and have overlapping axes; the first column (281) can pass through the upper cover (211) and the third column (283) can pass through the lower cover (212); the second column (282) is located between the first column (281) and the third column (283); the diameters of the first column (281) and the third column (283) are both smaller than the diameter of the second column (282); the second column (282) is used to cooperate with the limiting groove (263) to lock the movable baffle (26); and the movable baffle (26) is unlocked after the second column (282) leaves the limiting groove (263).

7. The climbing self-locking device (2) according to claim 6, characterized in that: The lifting column (28) further comprises a second elastic member (284), the second elastic member (284) being located between the lower cover (212) and the second column (282), the second elastic member (284) applying elastic force to the lifting column (28) to maintain the engaging state between the second column (282) and the limiting groove (263), and the first column (281) protrudes from the upper cover (211) when the second column (282) and the limiting groove (263) are in the engaging state.

8. A fall prevention device, comprising a stainless steel stranded wire (1) fixed to an iron tower, characterized in that: It also includes an anti-wind deflection device (3) and a climbing self-locking device (2) as described in any one of claims 1 to 7, wherein the anti-wind deflection device (3) includes a mounting plate (31), a connecting rod (33) and a limiting tube (34), wherein the mounting plate (31) is fixed on the iron tower, the limiting tube (34) accommodates and limits the stainless steel stranded wire (1), and the two ends of the connecting rod (33) are fixedly connected to the mounting plate (31) and the limiting tube (34), respectively.

9. The anti-fall device according to claim 8, characterized in that: The limiting tube (34) is provided with a first opening (341), a second opening (342) and a third opening (343) in succession along the axial direction; the first opening (341), the second opening (342) and the third opening (343) are all sized to allow the stainless steel stranded wire (1) to pass through; the opening directions of the first opening (341) and the third opening (343) are completely the same; and an angle is formed between the opening direction of the second opening (342) and the opening direction of the first opening (341).

10. The anti-fall device according to claim 8, characterized in that: The connecting rod (33) can pass through the gap between the movable baffle (26) and the extrusion tube (213) when the movable baffle (26) is in a state close to the extrusion tube (213), and the limiting tube (34) can pass through the gap between the extrusion head (221) and the extrusion tube (213) when the extrusion head (221) is in a state away from the extrusion tube (213).

Images