Safety rope tying anchor point for aloft work

Abstract

The utility model provides a safety rope tying anchor point during high-altitude operation. The safety rope tying anchor point comprises a screw rod, a positioning assembly A and a positioning assembly B, wherein the positioning assembly A and the positioning assembly B are arranged on the two sides of the outer portion of the screw rod and used for clamping an outer wall and an inner wall of a building. During high-altitude operation, the safety rope is tied and hung on an anchor point, and the problems that the anchor point is inconvenient to install and unstable in stress during high-altitude operation are effectively solved through a linkage adjusting mechanism of the double positioning assemblies. A shear fork telescopic frame of the positioning assembly A is unfolded under driving of a sliding sleeve to form a self-adaptive clamping structure, the building outer wall can be stably clamped without impact drilling, and the risk that a traditional expansion bolt needs outdoor operation is avoided; the positioning assembly B is matched with a baffle through a threaded sleeve, an adjustable supporting face is formed on the inner wall side, three-point balance stress is achieved through the cooperation of the positioning assembly B and safety rope tying and hanging holes in the two sides, a screw is prevented from excessively penetrating through the wall, it is guaranteed that the overall tensile strength of an anchor point reaches 200 kg or above, and the falling associated risk caused by manual traction is thoroughly eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to building material installation equipment technical field, concretely relates to a safety rope system anchor point when aerial work. BACKGROUND

[0002] In the field of air conditioner installation and maintenance, there is no reliable safety anchor point for the connecting rope of the safety belt (such as window frame, sofa corner, tea table, door handle, bed leg, and the person is pulled by the rope, which is not safe), which is the biggest pain point of the current industry. Because most of the newly developed buildings do not have a firm anchor point, most of the time, another person pulls the installer or the maintenance person to work in the air. This not only does not solve the safety problem, but also brings more dangerous hidden dangers. Because one person pulls the rope for a long time (one hour or even two hours), it is inevitable to be tired or distracted. It will have a great safety hazard to the installer or the maintenance personnel, and it is more dangerous if the installer and the maintenance personnel fall, which will bring the hidden danger of falling together with the person pulling the rope, and also waste human resources.

[0003] In the field of air conditioner installation and maintenance, the anchor point of the safety rope during aerial work currently has the following types: (1) expanded bolt hanging piece type, which needs to be installed at the solid wall body of the outer wall. When there is no reliable anchor point, the person needs to go outside to install the anchor point, which is not safe itself, and also needs to carry a large number of tools such as impact drill, hammer, wrench, and air blower, which increases the workload and certain risk of the worker; (2) air conditioner hole steel cable type, which needs to pass the safety rope through the air conditioner hole from the outside and then hang it. When the distance between the outer end of the steel cable and the worker is far, there is still a certain safety hazard or the safety rope cannot be hung at all; (3) wall-penetrating steel rod rotating type, which needs to rotate the steel rod when installing and removing and recycling, so that the indoor side blocking piece rotates a certain angle (for example, CN211611379U). The state of the outer side blocking piece cannot be observed indoors, and when the outer side blocking piece is blocked by the air conditioner pipe or other foreign matters when removing and recycling, it will cause the problem of long time of anchor point removal and recycling, or the problem of inability to recycle. SUMMARY

[0004] The utility model provides a safety rope system anchor point when aerial work, solve the problem that the prior art system anchor point is inconvenient to disassemble and assemble and poor safety.

[0005] The technical scheme of the utility model is realized as follows:

[0006] A safety rope system anchor point when aerial work, comprising a screw rod and positioning components A and B respectively arranged on both sides of the outer part of the screw rod for clamping and holding the outer wall and the inner wall of the building;

[0007] The positioning assembly A comprises a sliding sleeve sleeved outside the screw rod and a scissor-type folding frame corresponding to the sliding sleeve; the top of the sliding sleeve is fixed with a connecting plate on each of the front and rear sides, the adjacent sides of the two connecting plates are hinged to the bottom of the scissor-type folding frame on the front and rear sides, and the side of the scissor-type folding frame away from the connecting plate is hinged to the screw rod; the scissor-type folding frame is driven by the sliding sleeve to change from a folded storage state to an expanded state.

[0008] The positioning assembly B comprises a threaded sleeve installed outside the screw rod and corresponding to the sliding sleeve, the outer part of the threaded sleeve is threadedly installed with a baffle for abutting against the inner wall of the building, and safety rope hanging holes are formed in the two sides of the baffle.

[0009] Further, the scissor-type folding frame is composed of a driving groove-type rod and a driven groove-type rod which are symmetrical to each other, wherein the adjacent ends of the driving groove-type rod and the driven groove-type rod are hinged to each other, and the ends of the driving groove-type rod and the driven groove-type rod away from each other are hinged to the connecting plate and the screw rod respectively.

[0010] Further, the driven groove-type rod has a notch at the top end close to the screw rod, and the top end of the screw rod is threadedly installed with a limiting nut which is adapted to the notch and limits the scissor-type folding frame to be in the folded storage state.

[0011] Further, the outer part of the screw rod is sleeved with a spring inside the scissor-type folding frame, and the spring drives the scissor-type folding frame to retract from the expanded state to the folded storage state by elastic pushing.

[0012] Further, the positioning assembly B further comprises a baffle locking nut threadedly connected outside the threaded sleeve.

[0013] Further, the outer part of the screw rod is threadedly installed with a sleeve locking nut corresponding to the threaded sleeve below.

[0014] The technical scheme provided by the present application has the following beneficial effects:

[0015] The safety rope hanging anchor point during high-altitude operation effectively solves the problems of inconvenient installation and unstable stress of the anchor point in high-altitude operation through the linkage adjustment mechanism of the double positioning assemblies. The scissor-type folding frame of the positioning assembly A is expanded to form a self-adaptive clamping structure under the driving of the sliding sleeve, which can stably clamp the building outer wall without impact drilling, avoiding the risk of outdoor operation of traditional expansion bolts; the positioning assembly B forms an adjustable support surface on the inner wall side through the cooperation of the threaded sleeve and the baffle, and realizes three-point balanced stress through the double safety rope hanging holes, which not only prevents the screw rod from penetrating the wall too much, but also ensures that the overall tensile strength of the anchor point reaches more than 200 kg, completely eliminating the falling risk caused by manual pulling. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0017] Figure 1 The present application is a high-altitude operation safety rope hanging anchor point schematic diagram.

[0018] Figure 2 The present application is a high-altitude operation safety rope hanging anchor point exploded schematic diagram.

[0019] Figure 3 The present application is a baffle schematic diagram.

[0020] Figure 4 The present application is a high-altitude operation safety rope hanging anchor point installation state schematic diagram.

[0021] In the figure: 10 screw rod, 11 limit nut, 12 spring, 13 sleeve locking nut, 20 positioning assembly A, 21 sliding sleeve, 22 scissor telescopic frame, 23 connecting plate, 221 driving grooved rod, 222 driven grooved rod, 223 notch, 30 positioning assembly B, 31 threaded sleeve, 32 baffle, 33 safety rope hanging hole, 34 baffle locking nut. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be described clearly and completely below by combining the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0023] Reference Figures 1-4The utility model provides a kind of high-altitude operation safety rope system hanging anchor point, including screw rod 10 and the positioning component A20 and positioning component B30 for being arranged respectively for clamping building outer wall, inner wall on its outside two sides;The positioning component A20 includes sliding sleeve 21 that is slidably sleeved on the outside of screw rod 10 and corresponding scissor telescopic frame 22 above it;Two sides of each fixed with connecting piece 23 on the top of sliding sleeve 21, the adjacent side of two connecting pieces 23 is hinged with the two sides of the bottom of scissor telescopic frame 22, the side of scissor telescopic frame 22 away from connecting piece 23 is hinged on screw rod 10;Scissor telescopic frame 22 is converted from folding storage state to two sides expansion state by the sliding of sliding sleeve 21 on screw rod 10;In positioning component A20, when sliding sleeve 21 slides along the axial direction of screw rod 10, scissor telescopic frame 22 bottom is expanded outward by the traction of the two sides of the top fixed with connecting piece 23, and its function is to convert the linear motion of sliding sleeve 21 into the symmetrical expansion action of scissor telescopic frame 22.The side of scissor telescopic frame 22 away from connecting piece 23 is hinged to screw rod 10, forming a lever structure with screw rod as fulcrum, so that scissor telescopic frame 22 generates support force perpendicular to the axis of screw rod after expansion, so as to closely fit the surface of building outer wall.The design realizes self-adaptive wall thickness clamping through mechanical linkage, avoids manual adjustment steps, and the layout of the hinge point optimizes the load transmission path, enhances the shear resistance.

[0024] The positioning component B30 includes threaded sleeve 31 that is externally threaded on screw rod 10 and corresponds below sliding sleeve 21, the outside of threaded sleeve 31 is threaded with baffle 32 for abutting building inner wall by nut, and safety rope system hanging hole 33 is formed on the two sides of baffle 32.In positioning component B30, the threaded cooperation of threaded sleeve 31 and screw rod 10 allows the axial position of baffle 32 to be adjusted by rotation, and its function is to form reverse support force by the abutment of baffle 32 and building inner wall.Safety rope system hanging hole 33 is symmetrically formed on the two sides of baffle 32, and the double-point hanging is used to disperse unilateral tension, and the self-locking friction force is generated under dynamic load by cooperating with nut locking structure to prevent the loosening of threaded pair.The plane contact design of baffle 32 increases the contact area with inner wall, and the precise fine-tuning function of threaded sleeve 31 can adapt to complex working conditions such as inner wall inclination or uneven decorative layer.

[0025] Screw rod 10 is the core of bidirectional force application, which drives scissor telescopic frame 22 to expand outward to form active clamping by the axial displacement of sliding sleeve 21, and rotates threaded sleeve 31 to drive baffle 32 to press inward to generate passive clamping.The scissor mechanism converts linear motion into radial expansion force through hinge point, and the threaded pair converts into axial compression force through screw transmission, and the two form a bidirectional self-locking clamping system for inner and outer walls, which realizes the rapid installation and high reliability fixation of anchor point through mechanical interlocking principle.

[0026] In some embodiments, the scissor frame 22 is composed of a pair of symmetrical active channel bars 221 and passive channel bars 222, wherein the adjacent ends of the active channel bars 221 and the passive channel bars 222 are hingedly connected to each other, and the distal ends of the active channel bars 221 and the passive channel bars 222 are respectively hingedly connected to the connecting plate 23 and the screw rod 10. The symmetrical hinged design of the active channel bars 221 and the passive channel bars 222 enables the passive channel bars 222 to be synchronously driven in reverse motion by the active channel bars 221 when the active channel bars 221 are driven by the sliding sleeve 21. One end of the active channel bar 221 is hingedly connected to the connecting plate 23, and the other end is hingedly connected to the passive channel bar 222 in a cross manner, forming a parallelogram linkage structure; the other end of the passive channel bar 222 is hingedly connected to the screw rod 10, so that the included angle between the active channel bar 221 and the passive channel bar 222 changes synchronously during the unfolding process of the scissor frame 22, generating a uniform radial expansion force and ensuring the symmetry of the outer wall clamping surface. The channel cross-section design reduces the self-weight while improving the bending stiffness of the rod. When the sliding sleeve 21 moves upward along the screw rod 10, the active channel bar 221 is pulled by the connecting plate 23, driving the cross hinged joint between the active channel bar 221 and the passive channel bar 222 to expand outward, while the passive channel bar 222 rotates and unfolds around the hinged joint of the screw rod 10. The synchronous reverse motion of the active channel bar 221 and the passive channel bar 222 forms a symmetrical radial thrust, enabling the scissor frame 22 to simultaneously press against the outer wall on both sides, and converting linear displacement into stable bidirectional clamping force through the rigid support of the channel bar, thereby achieving self-adaptive clamping of the outer wall.

[0027] In some embodiments, the driven channel rod 222 has a notch 223 near the top end of the screw rod 10, and a limiting nut 11 is screwed onto the top end of the screw rod 10 to fit into the notch 223 and limit the folding of the scissors-type folding frame 22. The design of the notch 223 at the top end of the driven channel rod 222 and the limiting nut 11 allows the limiting nut 11 to be clamped by the notch 223, forming a mechanical lock when the scissors-type folding frame 22 is folded. When the limiting nut 11 is screwed into the top end of the screw rod 10 and inserted into the notch 223, the rotational freedom of the driven channel rod 222 is restricted, forcing the hinge point of the driven channel rod 222 to remain closed, preventing the scissors-type folding frame 22 from accidentally unfolding in the non-working state. The depth of the notch 223 is precisely matched with the outer diameter of the limiting nut 11, ensuring that the locking process can be completed without additional tools. When the scissors-type folding frame 22 needs to be folded, the limiting nut 11 is screwed into the top end of the screw rod 10 and inserted into the notch 223 of the driven channel rod 222, and the rotation of the driven channel rod 222 around the hinge point of the screw rod 10 is limited by the circumferential contact between the side wall of the notch 223 and the nut 11, thereby locking the scissors-type folding frame 22 in the folded state; when unfolded, the limiting nut 11 is unscrewed to release the clamping of the notch 223, allowing the scissors-type folding frame 22 to move freely and unfold with the sliding sleeve 21. The limiting nut 11 remains in the axial limiting function after retreating to the top end of the screw rod 10, preventing excessive displacement of the sliding sleeve 21 and causing structural instability.

[0028] In some embodiments, the screw rod 10 is externally fitted with a spring 12 inside the scissors-type folding frame 22, which drives the scissors-type folding frame 22 to retract from the expanded state to the folded state by elastic resistance. The spring 12 is arranged inside the scissors-type folding frame 22 and fitted on the screw rod 10, which drives the scissors-type folding frame 22 to automatically reset to the folded state by pre-tightening elastic force. When the axial pushing force on the sliding sleeve 21 is removed, the spring 12 reversely pushes the hinge point of the scissors-type folding frame 22 by its own elastic force, forcing the angle between the driven channel rod 222 and the driven channel rod 222 to decrease, thereby driving the sliding sleeve 21 to move downward along the screw rod 10, achieving rapid folding of the scissors-type folding frame 22. The axial arrangement of the spring 12 ensures that the elastic force direction is consistent with the motion trajectory of the scissors mechanism, avoiding partial load jamming during retraction. When the axial locking of the sliding sleeve 21 is released, the spring 12 releases the stored elastic potential energy, pushing the hinge point of the scissors-type folding frame 22 from both ends, forcing the driven channel rod 222 to rotate inward around the hinge point of the screw rod 10, and driving the sliding sleeve 21 to move downward along the screw rod 10. The linear elastic force of the spring 12 is converted into the rotational folding torque of the scissors mechanism, achieving automatic conversion of the device from the unfolded state to the folded state. The elastic force of the spring 12 continuously acts on the hinge point, not only maintaining the compactness of the folded state structure, but also providing initial pre-tightening force for re-expansion.

[0029] In some embodiments, the positioning assembly B30 further comprises a baffle locking nut 34 screwed outside the threaded sleeve 31. The design of the baffle locking nut 34 screwed outside the threaded sleeve 31 functions to secondarily lock the axial pressing force of the threaded sleeve 31 and the baffle 32. After the baffle 32 is preliminarily abutted against the inner wall by being screwed into the threaded sleeve 31, the baffle locking nut 34 is reversely screwed along the external thread of the threaded sleeve 31, so that the end surface thereof presses against the surface of the baffle 32, forming a double-nut anti-loosening structure. This design increases the contact friction of the threaded pair to prevent the threaded sleeve 31 from being loosened due to vibration or impact in high-altitude operation, and ensures the continuous and stable pressing of the baffle 32 against the inner wall. After the threaded sleeve 31 is screwed into the threaded rod 10 to drive the baffle 32 to press against the inner wall, the baffle locking nut 34 is reversely screwed outside the threaded sleeve 31, and the end surface thereof is in contact with the baffle 32 to generate additional pressing force, and the axial interlocking is formed through the double-nut structure.

[0030] In some embodiments, the sleeve locking nut 13 is screwed outside the threaded rod 10 and below the threaded sleeve 31, and functions to mechanically lock the axial position of the threaded sleeve 31. After the threaded sleeve 31 is screwed into the threaded rod 10 to the target position, the sleeve locking nut 13 is tightened to abut the bottom of the threaded sleeve 31 with the end surface, and double constraints are formed by the friction of the threaded pair and the contact pressure of the end surface, so as to prevent the threaded sleeve 31 from being axially displaced due to vibration or impact load in high-altitude operation, thereby ensuring the abutting force of the baffle 32 against the inner wall to be persistent and stable. After the threaded sleeve 31 is screwed into the threaded rod 10 to the target pressing position, the sleeve locking nut 13 is screwed from below to abut the bottom end surface of the threaded sleeve 31, and the rotation degree of freedom of the threaded sleeve 31 is limited by the thread engagement force and the end surface friction. The sleeve locking nut 13 and the secondary shrink nut 34 form a bidirectional clamping from top to bottom, and the axial displacement of the threaded sleeve 31 is constrained within the set interval of the threaded rod 10, the loosening risk of the threaded pair is eliminated by the mechanical interlocking principle, and the overall structure of the positioning assembly B30 is ensured to be stable under high dynamic load.

[0031] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A safety line attachment point for aerial work, characterised in that, The screw rod (10) is provided with a positioning assembly A (20) and a positioning assembly B (30) on both sides of the outer side of the screw rod (10) respectively for clamping the outer wall and the inner wall of the building. The positioning assembly A (20) comprises a sliding sleeve (21) slidingly sleeved on the outer side of the screw rod (10) and a scissor-type folding frame (22) corresponding to the upper side of the sliding sleeve (21); the top of the sliding sleeve (21) is fixed with a connecting plate (23) on each of the front and rear sides, the adjacent sides of the two connecting plates (23) are hingedly connected to the bottom of the scissor-type folding frame (22) on each of the front and rear sides, and the side of the scissor-type folding frame (22) away from the connecting plate (23) is hingedly connected to the screw rod (10); the sliding of the scissor-type folding frame (22) along with the sliding sleeve (21) on the screw rod (10) is from a folded storage state to an expanded and unfolded state. The positioning assembly B (30) comprises a threaded sleeve (31) threadedly installed on the outer side of the screw rod (10) and corresponding to the lower side of the sliding sleeve (21), and a baffle (32) for abutting against the inner wall of the building is threadedly installed on the outer side of the threaded sleeve (31) through a nut; safety rope hanging holes (33) are formed in the two sides of the baffle (32).

2. The high altitude work safety rope attachment anchor point of claim 1, wherein, The scissor-type folding frame (22) is composed of a driving groove-shaped rod (221) and a driven groove-shaped rod (222) which are symmetrical to each other, wherein the adjacent ends of the driving groove-shaped rod (221) and the driven groove-shaped rod (222) are hingedly connected to each other, and the ends of the driving groove-shaped rod (221) and the driven groove-shaped rod (222) away from each other are hingedly connected to the connecting plate (23) and the screw rod (10) respectively.

3. The high altitude work safety rope attachment anchor point of claim 2, wherein, The top end of the driven groove-shaped rod (222) close to the screw rod (10) is provided with a notch (223), and a limiting nut (11) is threadedly installed on the top end of the screw rod (10) and is adapted to the notch (223) and limits the scissor-type folding frame (22) in the folded storage state.

4. The high altitude work safety rope attachment anchor point of claim 2, wherein, The outer side of the screw rod (10) is sleeved with a spring (12) located on the inner side of the scissor-type folding frame (22), and the spring (12) is adapted to retract the scissor-type folding frame (22) from the expanded and unfolded state to the folded storage state by elastically pushing the scissor-type folding frame (22).

5. The high altitude work safety rope attachment anchor point of claim 4, wherein, The positioning assembly B (30) further comprises a baffle locking nut (34) threadedly connected to the outer side of the threaded sleeve (31).

6. The high altitude work safety rope attachment anchor point of claim 1, wherein, The outer side of the screw rod (10) is threadedly installed with a sleeve locking nut (13) corresponding to the lower side of the threaded sleeve (31).

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