Horizontal lifeline device

Abstract

The utility model provides a horizontal lifeline device which comprises a safety rope (1), end fixing pieces (2) for fixing the safety rope and two end fixing points, and a middle fixing piece (3) for fixing the safety rope and a middle fixing point. The middle fixing part comprises a body fixedly connected with the middle fixing point, a supporting pipe fixedly connected with the safety rope and a connecting plate connected between the body and the supporting pipe, the safety rope is sleeved with a movable cylinder (4) with a hook buckle (43), the side wall of the movable cylinder is provided with an open groove in the axial direction, and the width of the open groove ranges from the diameter of the safety rope to the thickness of the connecting plate. An axial guide sliding rail is arranged in the movable cylinder, a guide sliding block matched with the guide sliding rail is arranged on the side wall of the supporting pipe in the axial direction, and when the open groove is opposite to the connecting plate, the movable cylinder can slide through the middle fixing point. According to the utility model, an operator can pass through the middle fixing point without unhooking, so that the operation is more convenient, and the safety degree of the operator in high-altitude operation can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-altitude operation safety facilities, in particular to a horizontal lifeline device. Background Art

[0002] High-altitude work is a common way of working. When workers are working at high altitude, they are at a high altitude from the ground. In order to prevent accidental falls and ensure the safety of workers, they need to be equipped with corresponding high-altitude fall protection devices. At present, the high-altitude fall protection devices used in high-altitude work are usually horizontal lifeline devices. This device usually includes a safety rope and a fixing for fixing the safety rope. The two ends of the safety rope are connected and fixed to the structure, embedded steel pipe or scaffolding pipe through the fixing, forming an end fixing point, and the safety rope is straightened and fixed in the horizontal direction. Then the worker hangs the safety belt hook directly on the safety rope to complete the setting. When the worker falls accidentally, the hanging point provided by the safety rope is used to pull the falling person to prevent him from falling further, ensuring that the high-altitude workers work safely within the range of the horizontal lifeline, providing them with a freer working space.

[0003] When the distance between the two ends of the safety rope is too long, it is easy for the safety rope to have a large distance from the horizontal line when it sags in its natural state. When the operator falls accidentally, the safety rope does not provide enough force when pulling, causing the operator to fall too long, making it impossible for the operator to stay near the height of the hanging point, and the operator will suffer additional impact injuries due to the excessive falling distance. To avoid the above situation, when installing the lifeline device, an intermediate fixing point is usually set at a certain interval (not more than 12 meters). When setting, U-shaped buckles, rope clamps, etc. are usually used as middle fixings to clamp the safety rope to the intermediate fixing point. Due to the large size of devices such as U-shaped buckles and rope clamps, the commonly used safety belt hooks cannot directly pass through these types of fixings. Therefore, whenever the safety belt hook slides to the middle fixing point of the safety rope, the operator needs to remove the safety belt hook from the safety rope on one side of the middle fixing point and then hang it on the safety rope on the other side of the middle fixing point before continuing to move. When the operators need to change their working positions frequently, they will need to perform the above operations every time they pass the intermediate fixed point, which makes the entire operation process inconvenient. In addition, since the hook needs to be removed from the safety rope every time the operation is performed, the operators will be in a state without protection by the horizontal lifeline device. Once an unexpected situation occurs, this device will hardly play the due protective effect. Therefore, this device also has certain safety risks. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a horizontal lifeline device which can pass through an intermediate fixed point without removing the hook, which is more convenient to operate and can improve the safety of operators working at high altitudes.

[0005] The horizontal lifeline device described in the utility model includes a safety rope, end fixings for fixing the safety rope to two end fixing points, and a middle fixing part for fixing the safety rope to an intermediate fixing point, the middle fixing part includes a main body fixedly connected to the intermediate fixing point, a support tube fixedly connected to the safety rope, and a connecting plate connected between the main body and the support tube; a movable cylinder with a hook is provided on the outer shell of the safety rope, the inner cavity shape of the movable cylinder is adapted to the support tube, the side wall of the movable cylinder is axially provided with an open groove with a width between the diameter of the safety rope and the thickness of the connecting plate, an axial guide rail is provided in the movable cylinder, and the side wall of the support tube is provided with a guide slider matched with the guide rail, when the open groove is opposite to the connecting plate, the guide slider is also opposite to the guide rail, at this time, under the guidance of the guide slider and the guide rail, the movable cylinder can slide smoothly from the support tube over the intermediate fixing point.

[0006] The use of the horizontal lifeline device described in the utility model allows the safety belt hook hung on the device to be guided by the guide rail and the guide slider without the need to remove the hook, so that the hook passes through the middle fixing point of the horizontal lifeline device. When installing the utility model, first determine the end fixing point and the middle fixing point where the safety rope needs to be installed, install the end fixings on the two end fixing points, install a suitable number of middle fixings on the middle fixing point, each middle fixing is fastened to the middle fixing point through the body, and then the safety rope is passed through and fixed to the support tube on each middle fixing in turn, and then the movable cylinder is passed through the safety rope to make it hang on the safety rope, and finally the two ends of the safety rope are respectively connected and fixed to the two end fixings to make the safety rope horizontally straightened.

[0007] Before working at height, workers wearing safety belts should first hook their safety belts on the hook of the movable barrel, and then move the movable barrel to a suitable position on the safety rope to start working on the aerial work platform. When the workers change their positions, the safety belts on the workers will drive the connected movable barrel to move along the safety rope, so that the movable barrel can change its position as the workers move. When the workers fall from a height accidentally, since the width of the opening groove on the movable barrel is smaller than the diameter of the safety rope, it can ensure that the movable barrel will not be separated from the safety rope, and the workers can be pulled by the safety belt connected to the movable barrel and hung on the safety rope, thereby avoiding further falling.

[0008] When the movable cylinder comes to one of the intermediate fixed points along the safety rope, the movable cylinder starts to pass through the support tube from one end of the middle fixing piece on the fixing point. At this time, the guide rail on the inner wall of the movable cylinder can match and contact with the corresponding guide slider on the support tube. Under the guiding action of the guide rail and the guide slider, the position of the opening groove on the movable cylinder will correspond to the position of the connecting plate, so that the movable cylinder can pass through the connecting plate between the body and the support tube, so that the movable cylinder can smoothly slide through the intermediate fixed point from the support tube to the other end of the middle fixing piece, and then the movable cylinder continues to move along the safety rope as the position of the operator changes. The utility model allows the operator to align the opening groove on the movable cylinder with the connecting plate under the guiding action of the guide rail and the guide slider on the movable cylinder each time passing the intermediate fixed point of the safety rope, so that the movable cylinder can directly slide through the intermediate fixed point from the support tube, reducing the frequency of the operator manually correcting the orientation of the movable cylinder, and there is no need to perform hook removal and hook replacement operations, which is very convenient to use, ensuring that the operator can walk freely on the entire horizontal lifeline device and perform peripheral work throughout the entire process, and can improve the safety of the operator working at height.

[0009] Furthermore, the openings at both ends of the guide rail are trumpet-shaped. The trumpet-shaped openings at both ends of the guide rail facilitate the movement of the movable cylinder to one end of the support tube, so that the guide slider on the support tube can contact and embed with the corresponding guide rail over a larger angle range. As the movable cylinder slides on the support tube, the guide rail gradually narrows, so that the position of the opening groove on the movable cylinder corresponds to the position of the connecting plate, so that the movable cylinder passes through the connecting plate. The trumpet-shaped opening structure at both ends of the guide rail can expand the alignment range of the movable cylinder inserted into the support tube, further improve the guiding ability of the guide rail, and enable the movable cylinder to be inserted into the support tube more smoothly.

[0010] Furthermore, the connecting plate is connected to one of the guide sliders on the support tube. Since the connecting plate plays a supporting and connecting role between the support tube and the main body, it is subjected to a large force. Long-term use may cause the connecting plate to be slightly deformed, causing a slight change in the relative position between it and the support tube. At this time, the direction guided by the guide slider will deviate from the original direction, and the opening groove of the movable cylinder cannot correspond to the position of the connecting plate. After adopting this structure, since the connecting plate is integrally connected to one of the guide sliders on the support tube, the direction guided by the guide slider corresponds to the direction of the connecting plate. Therefore, it can be ensured that after the relative position of the connecting plate and the support tube changes slightly, the guide slider can still continue to guide the movable cylinder, so that the opening groove of the movable cylinder corresponds to the position of the connecting plate.

[0011] Furthermore, there are two guide sliders, and the two guide sliders are spaced 180 degrees apart, and one of the guide sliders is connected to the connecting plate. This structure uses only two guide sliders and is located on both sides of the support tube, which is simple to manufacture and can provide more space for designing trumpet-shaped openings with a larger alignment angle range at both ends of the guide rail. In addition, it can ensure that after the relative position of the connecting plate and the supporting tube changes slightly, the two guide sliders can continue to guide the movable cylinder, so that the opening groove of the movable cylinder corresponds to the position of the connecting plate.

[0012] Furthermore, the two ends of the support tube are provided with a wire clamp adapted to be connected with the support tube, the middle of the wire clamp is provided with a through hole for the safety rope to pass through, the inner wall of the wire clamp is provided with a protrusion, and the two ends of the support tube are also provided with a clamping piece connected with the support tube in one piece, when the wire clamp moves in the direction close to the support tube, the protrusion of the inner wall of the wire clamp can squeeze the clamping piece, so that the clamping piece deforms radially and squeezes the safety rope. With this structure, the tightness of the safety rope can be adjusted by the wire clamp on each middle fixing separately, so that the safety rope is fastened to the support tube of each middle fixing without affecting each other, and the safety rope is prevented from sliding axially on the support tube. When the operator falls accidentally, the falling distance of the operator can be further reduced, so that the operator can be kept near the height of the suspension point, and the operator can be prevented from suffering additional impact damage due to excessive falling distance, thereby improving the protection performance of the device.

[0013] Furthermore, the clamp adopts a conical structure, and the end of the clamp away from the support tube is an arc-shaped structure. With this structure, the resistance of the movable cylinder passing through the outer side of the clamp can be reduced, ensuring that the movable cylinder can smoothly enter the support tube. The arc-shaped end of the clamp can prevent the inner side of the clamp end from contacting the safety rope and causing cutting damage to the safety rope, ensuring the safety effect of the safety rope.

[0014] Furthermore, the end fixing member adopts the same structure as the middle fixing member, and the safety rope is fastened to the end fixing member using the wire clamp. The body of the end fixing member is provided with an anti-slip device, and when the anti-slip device contacts the connecting plate, it can prevent the movable cylinder from passing through the connecting plate. The end fixing member adopts the same structure as the middle fixing member, so that when the operator installs the movable cylinder into the safety rope, the movable cylinder can be directly inserted from the end fixing member without removing the end fixing member first, so that the movable cylinder passes through the end fixing point to the middle of the safety rope, which is more convenient to operate. The anti-slip device is installed on the body of the end fixing member. When the anti-slip device is lifted, there is enough space between it and the connecting plate so that the movable cylinder can pass through the connecting plate; when the anti-slip device is lowered, the anti-slip device will contact the connecting plate to prevent the movable cylinder from passing through the connecting plate. Therefore, installing the anti-slip device on the body of the end fixing member can limit the moving range of the movable cylinder on the horizontal lifeline device and prevent the movable cylinder from slipping off from the fixing points at both ends. During installation, the two end fixing points are equipped with end fixings with anti-slip devices. When inserting the movable cylinder, lift the anti-slip device upwards to make the movable cylinder pass through the connecting plate. After the movable cylinder passes through the middle of the safety rope, lower the anti-slip device to make it contact with the connecting plate. This can prevent the movable cylinder from passing through the end fixing point of the device and detaching from the entire lifeline device, thereby ensuring the safety of the device.

[0015] Furthermore, the body is specifically a clamp, which is fastened by bolts. The clamp is designed in a hinge-like manner and is clamped on the tubular object. The clamp is fastened by bolts, and the clamping degree of the clamp can be changed and disassembled by adjusting the bolts. This installation structure is relatively simple and practical, and can be applied to most places of high-altitude operations.

[0016] Furthermore, the cross section of the guide slider is a trapezoid. The trapezoidal cross section design structure can not only allow the guide slider to maintain good guiding performance, but also ensure that the friction coefficient between the guide slider and the guide rail is small, reduce the friction when the two are in contact, and ensure that the movable cylinder slides more smoothly on the support tube.

[0017] Furthermore, the two opposite ends of the connecting plate in contact with the movable cylinder are in arc shape, and the two ends of the opening groove are in arc shape. This structure can reduce the resistance when the opening groove contacts the connecting plate, and facilitates the movable cylinder to slide smoothly through the support tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the technical solution of the present utility model and constitute a part of the specification. Together with the specific implementation methods, they are used to explain the embodiments of the present utility model, but do not constitute a limitation to the present utility model.

[0019] Figure 1 It is a structural schematic diagram of a horizontal lifeline device provided in an embodiment of the utility model.

[0020] Figure 2 It is a schematic diagram of the combined structure of the middle fixing member and the movable cylinder in an embodiment of the utility model.

[0021] Figure 3 It is a structural schematic diagram of a middle fixing member provided in an embodiment of the utility model.

[0022] Figure 4 It is a side view of a middle fixing member provided in an embodiment of the utility model.

[0023] Figure 5 It is a schematic diagram of the connection structure between the end of the support tube and the wire clamp in the embodiment of the utility model.

[0024] Figure 6 The utility model embodiment is along Figure 3 Side view in the AA direction.

[0025] Figure 7 This utility model embodiment provides a Figure 3 Schematic diagram of the structure of the movable cylinder supporting the middle fixing part.

[0026] Figure 8 The utility model embodiment is along Figure 7 Side view in the AA direction.

[0027] Fig. 9 The utility model embodiment is along Figure 7 Cross-sectional view along the BB direction.

[0028] Fig.10 This utility model embodiment provides a Figure 3 A schematic diagram of the structure of a movable cylinder with a trumpet-shaped guide rail matched with a central fixing member.

[0029] Fig.11 The utility model embodiment is along Fig.10 Cross-sectional view along the BB direction.

[0030] Fig.12 It is a schematic diagram of the alignment range of the movable cylinder in the embodiment of the utility model.

[0031] Fig.13 This is another structural schematic diagram of the middle fixing member provided in an embodiment of the utility model.

[0032] Fig.14 This is another structural side view of the middle fixing member provided in an embodiment of the utility model.

[0033] Fig.15 The utility model embodiment is along Fig.13 Side view in the AA direction.

[0034] Fig.16 The utility model embodiment provides Fig.13 Schematic diagram of the structure of the middle fixing part and its matching movable cylinder.

[0035] Fig.17 The utility model embodiment is along Fig.16 Side view in the AA direction.

[0036] Fig.18 It is another structural schematic diagram of the horizontal lifeline device provided in an embodiment of the utility model.

[0037] Fig.19 It is a structural schematic diagram of a body provided with an anti-dropping device provided in an embodiment of the utility model.

[0038] Fig. 20 It is a side view of a main body provided by an embodiment of the utility model with an anti-slip device installed.

[0039] Figure markings: 1-safety rope, 2-end fixing piece, 3-middle fixing piece, 31-main body, 32-connecting plate, 33-support tube, 331-clamping plate, 34-guide slider, 35-bolt, 36-clip, 37-anti-slip device, 4-movable cylinder, 41-guide rail, 42-opening groove, 43-hook, 5-safety belt hook, 200-end fixing point, 300-middle fixing point. DETAILED DESCRIPTION

[0040] The following is a further detailed description of the embodiments of the technical solution of the utility model in conjunction with the accompanying drawings. It should be noted that the embodiments described below are only used to clearly illustrate and explain the technical solution of the utility model, and are not intended to limit the protection scope of the utility model patent.

[0041] It should be noted that if the embodiments of the present invention involve directional indications (such as above, below, left, right, front, back, top, bottom, inside, outside, horizontal, vertical, counterclockwise, clockwise, radial, axial, etc.), then the directional indications are only used to explain the relative position relationship, movement, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0042] like Figure 1 and Figure 2As shown, the utility model provides a horizontal lifeline device, including a safety rope 1, an end fixing member 2 fixing the safety rope 1 to two end fixing points 200, and a middle fixing member 3 fixing the safety rope 1 to an intermediate fixing point 300, wherein the middle fixing member 3 includes a body 31 fixedly connected to the intermediate fixing point 300, a support tube 33 fixedly connected to the safety rope 1, and a connecting plate 32 connected between the body 31 and the support tube 33; an active cylinder 4 with a hook 43 is arranged on the outer surface of the safety rope 1, and the inner cavity shape of the active cylinder 4 is similar to that of the middle fixing point 300. The support tube 33 is adapted, and the side wall of the movable cylinder 4 is axially provided with an open groove 42 with a width between the diameter of the safety rope 1 and the thickness of the connecting plate 32. An axial guide rail 41 is arranged in the movable cylinder 4, and the side wall of the support tube 33 is provided with a guide slider 34 matched with the guide rail 41. When the open groove 42 is opposite to the connecting plate 32, the guide slider 34 is also opposite to the guide rail 41. At this time, under the guidance of the guide slider 34 and the guide rail 41, the movable cylinder 4 can smoothly slide from the support tube 33 through the middle fixed point 300.

[0043] Figure 1 The end fixing member 2 in the device can use the existing structure for pulling and fixing the safety rope 1, for example, using a U-shaped buckle, rope clamp or other fixing members to fasten the two ends of the safety rope 1 to the end fixing point 200, and ensure that the movable cylinder 4 only moves between the two ends of the safety rope 1, and the movable cylinder 4 cannot be separated from the entire device from the two ends of the safety rope 1.

[0044] The safety rope 1 in this scheme can be an injection-molded steel wire rope, which has sufficient pulling force and wear resistance to ensure the safety and reliability of the entire lifeline device. Of course, the safety rope 1 in this scheme can also be other commonly used types of safety ropes 1, such as other types of steel wire ropes, steel cables, steel ropes, etc. This cannot be used as the sole limitation of the present utility model.

[0045] like Figure 1 As shown, the middle fixing part 3 is arranged between the two end fixing parts 2. The number of the middle fixing parts 3 can be arbitrary, and the number required for installation can be determined according to the actual terrain. A certain distance is maintained between each fixing part, and the distance is usually not more than 12 meters, so as to ensure that the bottom point of the sagging curvature of the safety rope 1 in the natural state is close to the horizontal line. When the operator falls accidentally, it can ensure that the operator remains near the height of the suspension point and reduce the impact damage to the operator due to falling.

[0046] like Figure 1As shown, the movable cylinder 4 is sleeved on the safety rope 1 and can slide freely on the safety rope 1. The movable cylinder 4 is provided with a hook 43 for hanging the safety belt hook 5. The movable cylinder 4 can pass through the middle fixing part 3, so that the safety belt hook 5 connected to the movable cylinder 4 can pass through the middle fixing part 3 of the horizontal lifeline device without unhooking. The external connecting part hung by the hook 43 in the utility model is not limited to the safety belt hook 5, but can also be an external connecting part of other safety devices, as long as it can cooperate with the utility model to play a role in high-altitude safety protection. The hook 43 can be used as follows Figure 2 The design shown is relatively light and convenient for users to adjust the position of the movable cylinder 4 by hand, ensuring the convenience of sliding. Of course, the specific structure of the hook 43 is not limited in this solution, and other structures can be used as long as they can play the role of hanging the safety belt hook 5 and other external connecting parts.

[0047] Figure 3 The figure shows the middle fixing part 3 for fixing the middle fixing point 300 of the safety rope 1. The middle fixing part 3 includes a body 31 fixedly connected to the middle fixing point 300, a support tube 33 fixedly connected to the safety rope 1, and a connecting plate 32 connected between the body 31 and the support tube 33. The present scheme does not limit the specific structure of the body 31, as long as the body 31 can fasten the middle fixing part 3 of the device of the utility model to the middle fixing point 300 to be installed, so that the middle fixing part 3 remains in the same position. As an embodiment of the utility model, the body 31 can be adopted as follows Figure 3 The clamp shown is designed in a hinge-like manner and is clamped on a tubular object by clamping, for example, directly fastened to a scaffolding tube, or fixed to an embedded part made of a pre-embedded scaffolding tube, or fixed to a fixed part made of a scaffolding tube. The clamp is fastened using a bolt 35, and the clamping degree of the clamp on the middle fixing point 300 can be changed by adjusting the bolt 35, and the clamp can be installed or removed. This installation structure is relatively simple and practical, and can be applied to most places of high-altitude operations.

[0048] The connecting plate 32 is a connecting piece connecting the body 31 and the support tube 33. Figure 3 As shown, the body 31 and the support tube 33 are respectively connected and fixed to the two opposite ends of the connecting plate 32. The material and thickness of the connecting plate 32 can be selected and designed according to actual needs to ensure that the connection between the body 31 and the support tube 33 is stable and plays a good supporting role. Figure 6 As shown, the length of the connecting plate 32 can be selected to be smaller than the length of the support tube 33, so that there is enough distance for the movable cylinder 4 to be guided when it is inserted into the support tube 33, so that the position of the opening groove 42 corresponds to the position of the connecting plate 32. Of course, the length of the connecting plate 32 can also be designed to be other values.

[0049] like Figure 3 and Figure 4 As shown, the support tube 33 is cylindrical, and a through hole is provided in the middle of the support tube 33 for the safety rope 1 to pass through, so that the safety rope 1 can pass through the support tube 33 and be fixedly connected through the support tube 33. A guide slider 34 is axially provided on the side wall of the support tube 33, and the guide slider 34 cooperates with the guide rail 41 on the movable cylinder 4. Optionally, the number of guide sliders 34 is more than two, and the specific number can be set according to actual needs to guide the movable cylinder 4. The present scheme does not limit the specific position of the guide slider 34 on the support tube 33, as long as the movable cylinder 4 slides relative to the support tube 33, the guide slider 34 is embedded in the matching guide rail 41 to play a guiding role, so that the opening groove 42 of the movable cylinder 4 can correspond to the position of the connecting plate 32. As shown in FIG. Figure 3 As shown, in this embodiment, two guide sliders 34 are provided. The two guide sliders 34 are respectively located above and below the support tube 33 and are spaced 180 degrees apart.

[0050] The cross section of the guide slider 34 can be of any shape, as long as the guide slider 34 and the guide rail 41 matched therewith can play a guiding role and the opening groove 42 of the movable cylinder 4 can correspond to the position of the connecting plate 32. Figure 3 As shown, optionally, the cross section of the guide slider 34 is a trapezoid. The trapezoidal cross section design structure can not only allow the guide slider 34 to maintain good guiding performance, but also ensure that the friction coefficient between the guide slider 34 and the guide rail 41 is small, reduce the friction when the two are in contact, and ensure that the movable cylinder 4 slides more smoothly on the support tube 33.

[0051] like Figure 4 and Figure 5 As shown, the middle fixing member 3 of the utility model also includes a wire clamp 36, which is adapted to be connected to the two ends of the support tube 33, and a through hole is provided in the middle of the wire clamp 36 for the safety rope 1 to pass through, and a protrusion is provided on the inner wall of the wire clamp 36. The main function of the wire clamp 36 is to clamp and fix the safety rope 1 passing through it by connecting and cooperating with the support tube 33, to ensure that the safety rope 1 does not slide along the axis, to ensure that the safety rope 1 is fixed on each intermediate fixing point 300, and each intermediate fixing point 300 does not affect each other. This scheme does not limit the specific connection method between the wire clamp 36 and the support tube 33, as long as the connection between the wire clamp 36 and the support tube 33 can be achieved and the tightness between the wire clamp 36 and the support tube 33 can be adjusted. As an embodiment of the utility model, the wire clamp 36 and the support tube 33 are connected by a thread, and the wire clamp 36 can be easily installed on the support tube 33 and the tightness can be adjusted.

[0052] The two ends of the support tube 33 are also provided with clamping pieces 331 which are integrally provided with the support tube 33. The clamping pieces 331 can be deformed inwards. The positional relationship between the clamping pieces 331 and the wire clamp 36 is as follows: Figure 5 As shown, when the clamp 36 moves toward the end of the support tube 33, the protrusion on the clamp 36 can squeeze the clamping piece 331 to deform it radially and squeeze the safety rope. Figure 5 The tightening direction shown in the figure is the direction in which the clamp 36 approaches the end of the support tube 33, and the loosening direction shown in the figure is the direction in which the clamp 36 moves away from the end of the support tube 33. It should be noted that in the present invention, unless otherwise stated, the directions or positional relationships indicated by the directional words such as "tight direction" and "loose direction" are based on Figure 5 The directions shown in the drawings are defined only to facilitate the description of the embodiments of the present invention, and do not indicate or imply that the devices or elements referred to must have a specific orientation, structure and operation, and therefore should not be understood as limiting the present invention.

[0053] refer to Figure 5 The safety rope 1 passes through the middle through hole of the support tube 33 and the clamp 36. When the safety rope 1 needs to be tightened, the clamp 36 is moved toward the end of the support tube 33. Figure 5 The protrusion on the inner wall of the wire clamp 36 gradually exerts a force on the clamping piece 331 at the end of the support tube 33, and the clamping piece 331 is squeezed and deformed inward, pressing the safety rope 1 radially, thereby fastening the safety rope 1 to the support tube 33. Conversely, when the safety rope 1 needs to be loosened, the wire clamp 36 is moved away from the end of the support tube 33, that is, toward Figure 5 As the wire clamp 36 moves in the direction of looseness, the force exerted by the protrusion on the inner wall of the wire clamp 36 on the clamping piece 331 at the end of the support tube 33 gradually decreases, thereby reducing the force of the clamping piece 331 pressing the safety rope 1 inward, thereby loosening the safety rope 1 from the support tube 33.

[0054] like Figure 4 and Figure 5 As shown, optionally, the wire clamp 36 adopts a conical structure. This design allows the movable cylinder 4 to enter the end of the support tube 33 from the outside of the wire clamp 36 more smoothly. Optionally, the end of the wire clamp 36 away from the support tube 33 is an arc-shaped structure. The use of an arc-shaped structure can reduce the resistance of the movable cylinder 4 passing through the outside of the wire clamp 36, ensuring that the movable cylinder 4 can smoothly enter the support tube 33, and can prevent the inner side of the end of the wire clamp 36 from contacting the safety rope 1 and causing cutting damage to the safety rope 1, thereby ensuring the safety effect of the safety rope 1.

[0055] like Figure 7 As shown, this embodiment provides a Figure 3 The movable cylinder 4 is matched with the middle fixing member 3. The inner cavity shape of the movable cylinder 4 is adapted to the support tube 33, and the inner wall of the movable cylinder 4 is provided with a guide rail 41. The number and position of the guide rail 41 are the same as Figure 3The guide slider 34 in the support tube 33 is adapted so that the movable cylinder 4 can be inserted into the support tube 33. The track structure of the guide slide rail 41 corresponds to the structure of the guide slider 34, so that when the movable cylinder 4 slides relative to the support tube 33, the guide slider 34 is embedded in the guide slide rail 41, and the guide slider 34 can move along the guide slide rail 41 to play a guiding role.

[0056] like Figure 8 As shown, the side wall of the movable cylinder 4 is provided with an open groove 42, the width of the open groove 42 is greater than the thickness of the connecting plate 32, so that when the open groove 42 is opposite to the connecting plate 32, the movable cylinder 4 can slide through the connecting plate 32, so that the movable cylinder 4 can slide from the support tube 33 to the middle fixing point 300. The width of the open groove 42 is smaller than the diameter of the safety rope 1, ensuring that the movable cylinder 4 will not fall off the safety rope 1 when moving on the safety rope 1.

[0057] like Figure 3 and Figure 7 As shown, optionally, the number of guide rails 41 and guide sliders 34 is more than two, and the number of guide rails 41 and guide sliders 34 is consistent, so as to ensure that the guide rails 41 match the guide sliders 34, so that the movable cylinder 4 can be inserted into and pass through the support tube 33. By setting a suitable number of guide sliders 34 and the matching guide rails 41, the position of the movable cylinder 4 inserted into the support tube 33 can be more accurate, ensuring that under the guidance of the guide rails 41 and the guide sliders 34, the opening groove 42 of the movable cylinder 4 can correspond to the position of the connecting plate 32, so that the movable cylinder 4 can slide from the support tube 33 through the middle fixed point 300. Figure 7 As shown, in this embodiment, two guide rails 41 are provided. The two guide rails 41 are respectively located above and below the inner wall of the movable cylinder 4 and are spaced 180 degrees apart.

[0058] like Figure 6 and Figure 8 As shown, optionally, the two opposite ends of the connecting plate 32 that contact the movable cylinder 4 adopt an arc-shaped structure, and the two ends of the opening groove 42 adopt an arc-shaped structure. This structure can reduce the resistance when the opening groove 42 contacts the connecting plate 32, so that the movable cylinder 4 can slide smoothly through the support tube 33.

[0059] like Fig. 9 As shown, the width of the guide rail 41 remains consistent in all positions of the movable cylinder 4, and is matched with the guide slider 34, ensuring that the guide slider 34 can always be embedded therein after contacting with the guide rail 41, and under the guiding action of the guide slider 34 and the guide rail 41, from the beginning of the insertion of the movable cylinder 4 into the support tube 33, the position of the opening groove 42 can correspond to the position of the connecting plate 32, thereby ensuring that the movable cylinder 4 passes through the connecting plate 32.

[0060] Further, such as Fig.10 and Fig.11 As shown, the openings at both ends of the guide rail 41 are trumpet-shaped, and the width in the middle of the guide rail 41 is adapted to the guide slider 34. The trumpet-shaped openings at both ends of the guide rail 41 facilitate the contact of the guide slider 34 on the support tube 33 with the corresponding guide rail 41 over a larger angle range when the movable cylinder 4 moves to one end of the support tube 33. As the movable cylinder 4 slides on the support tube 33, the guide rail 41 gradually narrows, so that the guide slider 34 is completely embedded therein, and the position of the opening groove 42 on the movable cylinder 4 can correspond to the position of the connecting plate 32, so that the movable cylinder 4 passes through the connecting plate 32. The trumpet-shaped opening structure at both ends of the guide rail 41 can expand the alignment range of the movable cylinder 4 inserted into the support tube 33, further enhance the guiding ability of the guide rail 41, and enable the movable cylinder 4 to be inserted into the support tube 33 more smoothly.

[0061] like Fig.12 As shown, the alignment range of the two guide rails 41 used in this embodiment can reach 55°. Of course, this solution does not limit the specific alignment range of the trumpet-shaped guide rail 41. The alignment range can be changed by changing the size of the trumpet-shaped opening of the guide rail 41. The actual angle range is adjusted according to the number and position of the guide rails 41 to ensure that there will be no conflict with the opening position of other guide rails 41.

[0062] like Fig.13 and Fig.14 As shown, optionally, the connecting plate 32 is connected to one of the guide slide blocks 34 on the support tube 33. Fig.15 , Fig.16 and Fig.17 , it is necessary to ensure that the thickness of the connecting plate 32 and the guide slider 34 are consistent, and the thickness of both is smaller than the gap width of the opening slot 42, so that the movable cylinder 4 can pass through the position of the connecting plate 32. Since the connecting plate 32 plays a supporting and connecting role between the support tube 33 and the body 31, it is subjected to a large force. Long-term use may cause the connecting plate 32 to be slightly deformed, so that the relative position between it and the support tube 33 changes slightly. At this time, the direction guided by the guide slider 34 will deviate from the original direction, and the opening slot 42 of the movable cylinder 4 cannot correspond to the position of the connecting plate 32. After adopting this structure, since the connecting plate 32 is integrally connected with one of the guide sliders 34 on the support tube 33, the direction guided by the guide slider 34 is fixed to correspond to the direction of the connecting plate 32. Therefore, it can be ensured that after the relative position of the connecting plate 32 and the support tube 33 changes slightly, the guide slider 34 can continue to guide the movable cylinder 4, so that the opening slot 42 of the movable cylinder 4 corresponds to the position of the connecting plate 32.

[0063] like Fig.16 and Fig.17As shown, when the connecting plate 32 is integrally connected to one of the guide sliders 34 on the support tube 33, the position of the guide rail 41 corresponding to the guide slider 34 on the movable cylinder 4 must be the same as the position of the opening groove 42. At this time, the width of the guide rail 41 except for the trumpet-shaped opening must be consistent with the width of the opening groove 42 and greater than the thickness of the connecting plate 32 to ensure that the movable cylinder 4 can slide over the connecting plate 32.

[0064] Further, such as Fig.13 In the illustrated embodiment, there are two guide sliders 34 , the two guide sliders 34 are spaced 180° apart, and one of the guide sliders 34 is connected to the connecting plate 32 . Fig.16 The one shown in Fig.13 The movable cylinder 4 has two guide rails 41 in the movable cylinder 4, which are spaced 180 degrees apart to ensure that the movable cylinder 4 can be connected with the movable cylinder 4. Fig.13 This structure uses only two guide sliders 34 located on both sides of the support tube 33, which is simple to manufacture and can provide more space for the two ends of the guide rail 41 to design a trumpet-shaped opening with a larger alignment angle range. In addition, it can ensure that after the relative position of the connecting plate 32 and the support tube 33 changes slightly, the two guide sliders 34 can continue to guide the movable cylinder 4, so that the opening groove 42 of the movable cylinder 4 corresponds to the position of the connecting plate 32. Fig.12 As shown, the alignment range of the two guide rails 41 used in this embodiment can reach 55°.

[0065] When installing this utility model, refer to Figure 1 First, determine the end fixing points 200 and the middle fixing points 300 where the safety rope 1 needs to be installed, install the end fixings 2 on the two end fixing points 200, and install a suitable number of middle fixings 3 on the middle fixing points 300. In this embodiment, two middle fixings 3 are provided and installed at suitable intervals. Each middle fixing 3 is fastened to the middle fixing point 300 through the body 31, and then the safety rope 1 is passed through and fixed to the support tube 33 on each middle fixing 3 in turn, and then the movable cylinder 4 is passed through the safety rope 1 to hang on the safety rope 1, and finally the two ends of the safety rope 1 are connected and fixed to the two end fixings 2 respectively, so that the safety rope 1 is horizontally straightened.

[0066] Optionally, the above operation of fixing the safety rope 1 to the support tube 33 may refer to Figure 4 , install the wire clamp 36 on the middle fixing part 3 to fix the safety rope 1. When installing, pass the safety rope 1 through the support tube 33 on each middle fixing part 3 and the middle through hole of the wire clamp 36 in turn. Figure 5In this way, the tightness of the safety rope 1 by the wire clamp 36 on the middle fixing part 3 can be adjusted separately to meet the required requirements, ensuring that the safety rope 1 is fastened to the support tube 33 of each middle fixing part 3 without affecting each other, preventing the safety rope 1 from sliding axially on the support tube 33, and ensuring the use effect of the device. When the operator falls accidentally, it can further reduce the falling distance of the operator, keep the operator near the height of the suspension point, prevent the operator from suffering additional impact damage due to excessive falling distance, and improve the protection performance of the device.

[0067] Before the operator wearing the safety belt performs aerial work, he first hangs the safety belt hook 5 on the hook 43 of the movable cylinder 4, and then moves the movable cylinder 4 to a suitable position on the safety rope 1, so as to start working on the aerial work platform. When the operator changes position, the safety belt on the operator will drive the connected movable cylinder 4 to move along the safety rope 1, so that the movable cylinder 4 can change position as the operator moves. When the operator accidentally falls from a height, since the width of the opening groove 42 on the movable cylinder 4 is smaller than the diameter of the safety rope 1, it can ensure that the movable cylinder 4 will not be separated from the safety rope 1, and the operator can be pulled by the safety belt connected to the movable cylinder 4 and hung on the safety rope 1, thereby avoiding further falling.

[0068] When the movable cylinder 4 comes to one of the middle fixing members 3 along the safety rope 1, the movable cylinder 4 starts to pass through the support tube 33 from one end of the fixing member. Figure 2 As shown, at this time, the guide rail 41 on the inner wall of the movable cylinder 4 can match and contact with the corresponding guide slider 34 on the support tube 33. Under the guiding action of the guide rail 41 and the guide slider 34, the position of the opening groove 42 on the movable cylinder 4 will correspond to the position of the connecting plate 32, so that the movable cylinder 4 can pass through the connecting plate 32 between the main body 31 and the support tube 33, so that the movable cylinder 4 can smoothly pass through the support tube 33 on the middle fixing member 3 and come to the other end of the fixing member, and then the movable cylinder 4 continues to move along the safety rope 1 as the position of the operator changes. The utility model allows the operating personnel to align the opening groove 42 on the movable cylinder 4 and pass through the connecting plate 32 under the guiding action of the guide rail 41 and the guide slider 34 on the movable cylinder 4 each time the operating personnel passes through the middle fixed point 300 of the safety rope 1, thereby directly passing through the middle fixed point 300 of the safety rope 1, thereby reducing the frequency of the operating personnel manually correcting the orientation of the movable cylinder 4 and eliminating the need to perform hook removal and hook replacement operations. The utility model is very convenient to use, ensuring that the operating personnel can walk freely on the entire horizontal lifeline device and perform peripheral work throughout the entire process, and can improve the safety of the operating personnel working at heights.

[0069] Further, such as Fig.18As shown, the end fixing member 2 adopts the same structure as the middle fixing member 3, and the safety rope 1 is fastened to the end fixing member 2 using a wire clamp 36. The body 31 of the end fixing member 2 is provided with an anti-slip device 37. When the anti-slip device 37 contacts the connecting plate 32, it can prevent the movable cylinder 4 from passing through the connecting plate 32. The end fixing member 2 adopts the same structure as the middle fixing member 3, so that when the operator installs the movable cylinder 4 into the safety rope 1, the movable cylinder 4 can be directly inserted from the end fixing member 2 without first removing the end fixing member 2, so that the movable cylinder 4 passes through the end fixing point 200 and comes to the middle of the safety rope 1. When it is needed, Fig.18 As shown, when multiple movable cylinders 4 are added to the device, it is not necessary to remove the end fixing member 2 each time. The movable cylinder 4 can be added to or removed from the device at any time, which makes the operation more convenient.

[0070] like Fig.19 and Fig. 20 As shown, the main body 31 is provided with an anti-slip device 37, which is an inverted T-shaped rod structure and can change its position relative to the connecting plate 32 by moving up and down. After the anti-slip device 37 is lifted up, there is a sufficient gap between it and the connecting plate 32, and the movable cylinder 4 can pass through the connecting plate 32 normally; after the anti-slip device 37 is moved down to the connecting plate 32, the anti-slip device 37 contacts the connecting plate 32, and the overall thickness of the combination formed by the connecting plate 32 and the anti-slip device 37 will be greater than the width of the opening groove 42 on the movable cylinder 4, thereby preventing the movable cylinder 4 from passing through the connecting plate 32. Therefore, the anti-slip device 37 can be used as a pass switch for the end fixing member 2. Installing the anti-slip device 37 on the end fixing member 2 of the horizontal lifeline device can limit the moving range of the movable cylinder 4 on the horizontal lifeline device and prevent the movable cylinder 4 from slipping off the end fixing member 2. Of course, the anti-slip device 37 may not be limited to Fig.19 and Fig. 20 The structure given in the above description only requires that the anti-slip device 37 can change its position so that the anti-slip device 37 can contact the connecting plate 32 to prevent the movable cylinder 4 from passing through the connecting plate 32.

[0071] During installation, refer to Fig.18 The two end fixing points 200 are equipped with end fixing members 2 with anti-slip devices 37. When inserting the movable cylinder 4, lift the anti-slip device 37 upward to make the movable cylinder 4 pass through the connecting plate 32. After the movable cylinder 4 passes through the middle of the safety rope 1, lower the anti-slip device 37 to make it contact with the connecting plate 32. This can prevent the movable cylinder 4 from passing through the end fixing point 200 of the device and detaching from the entire lifeline device, thereby ensuring the safety of the device.

[0072] The above are only some embodiments of the utility model, and the protection scope of the utility model patent is not limited thereto. Those skilled in the art can make non-substantial changes or substitutions based on the utility model, which still fall within the protection scope of the utility model patent.

Claims

1. A horizontal lifeline device, comprising a safety rope (1), end fixing members (2) for fixing the safety rope (1) to two end fixing points (200), and a middle fixing member (3) for fixing the safety rope (1) to an intermediate fixing point (300), wherein the middle fixing member (3) comprises a body (31) fixedly connected to the intermediate fixing point (300), a support tube (33) fixedly connected to the safety rope (1), and a connecting plate (32) connected between the body (31) and the support tube (33); characterized in that: A movable cylinder (4) with a hook (43) is provided on the outer shell of the safety rope (1). The inner cavity shape of the movable cylinder (4) is adapted to the support tube (33). An opening groove (42) having a width between the diameter of the safety rope (1) and the thickness of the connecting plate (32) is provided on the side wall of the movable cylinder (4) along the axial direction. An axial guide rail (41) is provided inside the movable cylinder (4). A guide slider (34) matching the guide rail (41) is provided on the side wall of the support tube (33). When the opening groove (42) is opposite to the connecting plate (32), the guide slider (34) is also opposite to the guide rail (41). At this time, under the guidance of the guide slider (34) and the guide rail (41), the movable cylinder (4) can smoothly slide from the support tube (33) through the middle fixed point (300).

2. The horizontal lifeline device according to claim 1, characterized in that: The openings at both ends of the guide slide rail (41) are trumpet-shaped.

3. The horizontal lifeline device according to claim 1 or 2, characterized in that: The connecting plate (32) is connected to one of the guide slide blocks (34) on the supporting tube (33).

4. The horizontal lifeline device according to claim 1 or 2, characterized in that: There are two guide sliders (34), the two guide sliders (34) are spaced 180 degrees apart, and one of the guide sliders (34) is connected to the connecting plate (32).

5. The horizontal lifeline device according to claim 1 or 2, characterized in that: A wire clamp (36) adapted to be connected to the support tube (33) is provided at both ends of the support tube (33), and a protrusion is provided on the inner wall of the wire clamp (36). A clamping piece (331) integrally connected to the support tube (33) is also provided at both ends of the support tube (33). When the wire clamp (36) moves in a direction approaching the support tube (33), the protrusion on the inner wall of the wire clamp (36) can squeeze the clamping piece (331), so that the clamping piece (331) deforms radially to squeeze the safety rope (1).

6. The horizontal lifeline device according to claim 5, characterized in that: The wire clamp (36) has a conical structure, and the end of the wire clamp (36) away from the support tube (33) is in an arc shape.

7. The horizontal lifeline device according to claim 5, characterized in that: The end fixing member (2) has the same structure as the middle fixing member (3). The safety rope (1) is fastened to the end fixing member (2) using the wire clamp (36). The body (31) of the end fixing member (2) is provided with an anti-slip device (37). When the anti-slip device (37) contacts the connecting plate (32), it can prevent the movable cylinder (4) from passing through the connecting plate (32).

8. The horizontal lifeline device according to claim 1, characterized in that: The body (31) is specifically a clamp, which is fastened by bolts (35).

9. The horizontal lifeline device according to claim 1, characterized in that: The cross section of the guide slide block (34) is trapezoidal.

10. The horizontal lifeline device according to claim 1, characterized in that: The two opposite ends of the connecting plate (32) that are in contact with the movable cylinder (4) are in arc shape, and the two ends of the opening groove (42) are in arc shape.

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