Safety protection device for large-span frame construction

Abstract

The invention discloses a large-span frame construction safety protection device which comprises steel cables and safety ropes connected to the steel cables, the steel cables are hung through slings, and connecting nodes are arranged between the slings; the safety rope comprises a sliding assembly, a connecting rope and a hook part, the hook part and the sliding assembly are connected through the connecting rope, and the hook part is used for being matched with a constructor for hooking; the sliding assembly comprises a connecting base, two connecting rods arranged on the connecting base, pulleys rotationally connected to the connecting rods and a connecting hook arranged on the connecting base in an up-down sliding mode, the two connecting rods are located on the two sides of the steel cable correspondingly, grooves are formed in the positions, corresponding to the steel cable, of the pulleys, and the two pulleys are clamped on the steel cable through mutual cooperation of the grooves; sliding connection is formed with the steel rope; and the connecting hook is matched with the two connecting rods and tensions the two connecting rods. According to the scheme, a constructor can move conveniently during large-span frame construction, and meanwhile the safety protection effect on the constructor is kept.

Description

Technical Field

[0001] The invention relates to building construction, in particular to a safety protection device for large-span frame construction. Background Art

[0002] There are many high-altitude operations in construction sites, and wearing safety belts has become an indispensable requirement for daily construction. When working at heights, some workers have a fluke mentality and do not wear safety belts properly, which leads to great safety hazards. How to remind workers who work at heights to wear safety belts in a standardized manner in a timely manner to ensure the safety of workers' lives is a difficult problem that needs to be solved urgently.

[0003] Especially in the process of large-span frame construction, safety protection is particularly important. In the protection process, it is inevitable to use safety ropes, which are used as protection against falling. Due to the large-span frame construction, there will be a large operating range, and construction workers need to move around for construction over a long distance. Therefore, the safety rope needs to be able to move easily. Therefore, simply using the safety rope for fixed suspension cannot meet the requirements of large-span frame construction. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a large-span frame construction safety protection device, which can facilitate the movement of construction workers during large-span frame construction while maintaining the safety protection effect on the construction workers.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a large-span frame construction safety protection device, comprising a steel cable and a safety rope connected to the steel cable, the steel cable is suspended by a sling, and a connection node is provided between the sling and the steel cable, the connection node comprises a clamp and a connecting piece connected to the clamp, and the connecting piece is fixedly connected to the sling; the safety rope comprises a sliding assembly, a connecting rope, and a hook component, the sliding assembly is used to slide in cooperation with the steel cable, the connecting rope connects the hook component and the sliding assembly, and the hook component is used to cooperate with construction personnel to hook; the sliding assembly The dynamic component includes a connecting seat, two connecting rods arranged on the connecting seat, a pulley rotatably connected to the connecting rods, and a connecting hook slidably arranged on the connecting seat. The two connecting rods are respectively located on both sides of the steel cable, and grooves are arranged on the pulleys at positions corresponding to the steel cable. The two pulleys are clamped on the steel cable by cooperating with each other through the grooves and form a sliding connection with the steel cable; the connecting hook cooperates with the two connecting rods, and when the connecting hook slides downward, the connecting hook tightens the two connecting rods and locks the pulley on the steel cable; there is a gap between the two pulleys, and the gap is used to cooperate with the connecting piece to pass through.

[0006] As a further improvement of the present invention, one end of the two connecting rods corresponding to the connecting seat is rotatably connected to the connecting seat, and the two connecting rods are moved closer to or away from each other by rotation so that the pulley and the steel cable can be clamped or separated.

[0007] As a further improvement of the present invention, the connecting hook includes a connecting part and a hook part, the connecting part connects two connecting rods at the same time, and an external thread is provided at one end of the hook part corresponding to the connecting part, and the hook part is threadedly connected to the connecting part through the external thread after passing through the connecting seat; a nut is also threadedly connected to the hook part, and the nut is located below the connecting seat and is used to abut the connecting seat; the hook part adjusts the upper and lower positions through the nut, and tightens or loosens the two connecting rods with the connecting part.

[0008] As a further improvement of the present invention, a spring is sleeved on the hook portion, and one end of the spring abuts against the connecting seat, and the other end abuts against the nut.

[0009] As a further improvement of the present invention, the connecting rod is conical, and the large end is hinged to the connecting seat, and the small end is installed with a pulley; the connecting part includes a cross plate and a ring fixedly connected to the two ends of the cross plate, the ring is sleeved on the connecting rod, the cross plate is threadedly connected to the hook part, and the cross plate moves up and down with the ring, and the ring cooperates with the conical surface of the connecting rod to drive the two connecting rods closer to each other.

[0010] As a further improvement of the present invention, the groove on the pulley is arc-shaped, and the cross-section of the steel cable is circular and matched with the arc shape of the groove.

[0011] As a further improvement of the present invention, the steel cable is a multi-layer strand steel cable formed by winding and braiding a plurality of steel wires, and a plurality of annular protrusions are arranged on the bottom and the wall of the groove, and the protrusion is arranged in a triangle at one end of the steel cable corresponding to the groove, so as to cooperate with the depression on the surface of the multi-layer strand steel cable for gripping.

[0012] As a further improvement of the present invention, an elastic pressure sensing component is arranged between the two connecting rods, and an alarm is also installed on the connecting seat, and the alarm is connected to the elastic pressure sensing component. A pressure threshold is set in the alarm, and when the pressure detected by the elastic pressure sensing component does not reach the pressure threshold, the alarm sounds an alarm.

[0013] The beneficial effect of the present invention is that the two pulleys are respectively located on both sides of the radial direction of the steel cable, and the steel cable is clamped by the groove, which can form a more stable locking effect with the steel cable. The connecting hook connects the two connecting rods. When the connecting hook receives the pulling force and slides downward, the two connecting rods can be tightened, so that the two connecting rods further lock the steel cable, making the clamping state more stable and improving safety. There can be a gap between the two pulleys, so that the connecting piece can pass through, and the entire sliding assembly slides on the steel cable, which meets the needs of construction personnel to maintain safety during large-span construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention in use state;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the safety rope part of the present invention;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the safety rope part of the present invention from another viewing angle;

[0017] Figure 4 It is a schematic diagram of the side view structure of the safety rope part of the present invention.

[0018] Figure numbers: 1. Steel cable; 2. Safety rope; 21. Sliding assembly; 211. Connecting seat; 212. Connecting rod; 213. Pulley; 2131. Groove; 21311. Protrusion; 214. Connecting hook; 2141. Connecting part; 21411. Cross plate; 21412. Ring; 2142. Hook; 22. Connecting rope; 3. Connecting node; 31. Hoop; 32. Connecting plate; 4. Nut; 5. Spring; 6. Elastic pressure sensing component; 7. Alarm. DETAILED DESCRIPTION

[0019] The present invention will be further described below in detail with reference to the embodiments shown in the accompanying drawings.

[0020] Reference Figure 1-4 As shown,

[0021] A large-span frame construction safety protection device includes a steel cable 1 and a safety rope 2 connected to the steel cable 1. The steel cable 1 is suspended by a sling, and a connection node 3 is provided between the sling and the steel cable 1. The connection node 3 includes a clamp 31 and a connecting piece 32 connected to the clamp 31, and the connecting piece 32 is fixedly connected to the sling; the safety rope 2 includes a sliding assembly 21, a connecting rope 22, and a hook part 2142. The sliding assembly 21 is used to slide with the steel cable 1, and the connecting rope 22 connects the hook part 2142 and the sliding assembly 21, and the hook part 2142 is used to cooperate with construction personnel to hook; the sliding assembly 21 includes a connecting seat 211, two connecting pieces arranged on the connecting seat 211, and the connecting piece 32 is provided on the connecting seat 211. A connecting rod 212, a pulley 213 rotatably connected to the connecting rod 212, and a connecting hook 214 slidably arranged on the connecting seat 211, the two connecting rods 212 are respectively located on both sides of the steel cable 1, and a groove 2131 is arranged on the pulley 213 at a position corresponding to the steel cable 1, and the two pulleys 213 cooperate with each other through the groove 2131 to be clamped on the steel cable 1 and form a sliding connection with the steel cable 1; the connecting hook 214 cooperates with the two connecting rods 212, and when the connecting hook 214 slides downward, the connecting hook 214 tightens the two connecting rods 212 and locks the pulley 213 on the steel cable 1; there is a gap between the two pulleys 213, and the gap is used to cooperate with the connecting piece 32 to pass through.

[0022] The steel cable 1 is an important suspension component in large-span construction, and can be used to cooperate with construction workers to hang safety ropes 2. In this solution, the two pulleys 213 are respectively located on both sides of the radial direction of the steel cable 1, and the steel cable 1 is clamped by the groove 2131, which can form a more stable locking effect with the steel cable 1. The hook part 2142 is used to connect with the lifting ring on the construction worker, and is connected to the connecting hook 214 through the connecting rope 22. The connecting rope 22 can also be provided with a hook part 2142 at the position corresponding to the connecting hook 214, which cooperates with the connecting hook 214. The connecting hook 214 in this solution connects two connecting rods 212. When the connecting hook 214 receives the pulling force and slides downward, it can tighten the two connecting rods 212, so that the two connecting rods 212 further lock the steel cable 1, making the clamping state more stable and improving safety. The sling is used to cooperate with the steel cable 1 for suspension, and has a suspension effect on the steel cable 1, but there will be a connection node 3 between the sling and the steel cable 1. The thickness of the connection node 3 can be reduced by means of a hoop 31. The two pulleys 213 cooperate, and there can be a gap between the two pulleys 213, so that the connecting piece 32 can pass through, and the entire sliding assembly 21 slides on the steel cable 1, which satisfies the construction workers to maintain safety during the large-span construction process. In this solution, by allowing the connecting hook 214 to cooperate with the connecting rod 212, the two pulleys 213 can cooperate with the connection node 3 between the sling and the steel cable 1 to move, and sufficient safety can also be provided.

[0023] In the specific configuration, one end of the two connecting rods 212 corresponding to the connecting seat 211 is rotatably connected to the connecting seat 211, and the two connecting rods 212 are moved closer to or farther away from each other by rotation, so as to clamp or separate the pulley 213 and the steel cable 1. When installing the pulley 213 and the steel cable 1, the connecting hook 214 can be moved upward first, so that the two connecting rods 212 can rotate relative to each other, so as to form a larger space between the two pulleys 213 for the steel cable 1 to enter, and then the connecting hook 214 is pulled down to allow the two connecting rods 212 to move closer to each other, and then clamped and installed on the steel cable 1.

[0024] In addition, as a solution that can preliminarily adjust the locking force between the pulley 213 and the steel cable 1, the connecting hook 214 includes a connecting portion 2141 and a hook portion 2142, the connecting portion 2141 simultaneously connects the two connecting rods 212, and the hook portion 2142 is provided with an external thread at one end corresponding to the connecting portion 2141, and the hook portion 2142 passes through the connecting seat 211 and is threadedly connected to the connecting portion 2141 through the external thread; the hook portion 2142 is also threadedly connected with a nut 4, which is located below the connecting seat 211 and is used to abut the connecting seat 211; the hook portion 2142 adjusts the upper and lower positions through the nut 4, and tightens or loosens the two connecting rods 212 with the connecting portion 2141.

[0025] By cooperating with the external thread on the hook 2142 and the nut 4, the extension degree of the hook 2142 in the initial state can be adjusted, and then the coordination between the connecting part 2141 and the two connecting rods 212 can be adjusted, and the clamping force between the two pulleys 213 and the steel cable 1 can be adjusted. It can be convenient to install with the rotation connection mode of the connecting rod 212 itself, and it is convenient for construction personnel to operate. The connecting part 2141 is used to cooperate with the two connecting rods 212 for installation, and cooperate with the hook 2142 at the same time. As the upper and lower positions of the hook 2142 are adjusted, the connecting part 2141 and the connecting rod 212 are matched, so that the two connecting rods 212 can be close to each other or away from each other.

[0026] In a further configuration, a spring 5 is sleeved on the hook 2142, and one end of the spring 5 abuts against the connection seat 211, and the other end abuts against the nut 4. This configuration is different from the aforementioned nut 4 configuration. The aforementioned nut 4 can directly cooperate with the connection seat 211 for abutment, while in this solution, the abutment is performed through the spring 5, and the positioning effect of the nut 4 is applied to the connection seat 211 through the spring 5, thereby maintaining the position of the hook 2142. Moreover, the effect of the spring 5 can alleviate the problem of the nut 4 loosening, and make the cooperation between the two pulleys 213 relatively stable. The elastic coefficient of the spring 5 can be relatively high, which increases the elastic force on the nut 4 and makes the anti-loosening effect better.

[0027] In order to make the connection rod 212 and the connection part 2141 cooperate more conveniently and stably, the connection rod 212 is conical, and the large end is hinged to the connection seat 211, and the small end is installed with a pulley 213; the connection part 2141 includes a cross plate 21411 and a ring 21412 fixedly connected to the two ends of the cross plate 21411, the ring 21412 is sleeved on the connecting rod 212, the cross plate 21411 is threadedly connected to the hook part 2142, and the cross plate 21411 moves up and down with the ring 21412, and the ring 21412 cooperates with the conical surface of the connecting rod 212 to drive the two connecting rods 212 to move closer to each other. The conical connecting rod 212 cooperates with the ring 21412 on the connecting part 2141, so that when the ring 21412 is moved downward by the connecting hook 214, the two connecting rods 212 are pulled together to clamp the steel cable 1, and the cross plate 21411 is used to connect the ring 21412 and the hook 2142, so that the ring 21412 can be linked with the hook 2142. This solution is simpler in structure and easy to install. It only needs to put the ring 21412 on the connecting rod 212 first and then install the pulley 213, and then let the hook 2142 pass through the connecting seat 211 and be threadedly connected to the cross plate 21411.

[0028] Preferably, the groove 2131 on the pulley 213 is arc-shaped, and the cross-section of the steel cable 1 is circular and matches the arc of the groove 2131. The arc-shaped groove 2131 can improve the wrapping effect on the steel cable 1, increase the contact surface, improve the gripping effect, make it more difficult to disengage, and improve safety.

[0029] In particular, the steel cable 1 is a multi-layered steel cable 1 formed by winding and weaving a plurality of steel wires, and a plurality of annular protrusions 21311 are arranged on the bottom and the wall of the groove 2131, and the protrusion 21311 is arranged in a triangle corresponding to one end of the steel cable 1, which is used to cooperate with the depression on the surface of the multi-layered steel cable 1 for gripping.

[0030] The protrusion 21311 can form a gripping effect with the groove 2131 on the surface of the steel cable 1, especially the triangular structure of the protrusion 21311, which makes it more difficult for the pulley 213 to slide off the steel cable 1, further improving safety.

[0031] In order to facilitate operation for construction workers, an elastic pressure sensing component 6 is arranged between the two connecting rods 212. An alarm 7 is also installed on the connecting seat 211, and the alarm 7 is connected to the elastic pressure sensing component 6. A pressure threshold is set in the alarm 7. When the pressure detected by the elastic pressure sensing component 6 does not reach the pressure threshold, the alarm 7 sounds an alarm.

[0032] The elastic pressure sensing component 6 can be a pressure sensor with a strain gauge, which can be converted into a pressure signal through deformation. Before the pressure generated by the two connecting rods 212 approaching each other on the pressure sensor does not reach the set threshold, the alarm 7 will continue to sound an alarm until the pressure detected by the pressure sensor reaches the pressure threshold or exceeds the pressure threshold, which means that the two connecting rods 212 have been pressed tightly, indicating that a stable fit has been formed between the pulley 213 and the steel cable 1. The pressure sensor can be fixed on one of the connecting rods 212 at one end, and the other end is used to contact the other connecting rod 212.

[0033] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A safety protection device for large-span frame construction, comprising a steel cable and a safety rope connected to the steel cable, wherein the steel cable is suspended by a sling, and a connection node is provided between the sling and the steel cable, characterized in that: The connecting node includes a hoop and a connecting piece connected to the hoop, and the connecting piece is fixedly connected to the sling; the safety rope includes a sliding assembly, a connecting rope, and a hook component, the sliding assembly is used to slide in cooperation with the steel cable, the connecting rope connects the hook component and the sliding assembly, and the hook component is used to cooperate with the construction personnel to hook; the sliding assembly includes a connecting seat, two connecting rods arranged on the connecting seat, a pulley rotatably connected to the connecting rod, and a connecting hook arranged on the connecting seat that can slide up and down, the two connecting rods are respectively located on both sides of the steel cable, and grooves are provided on the pulleys at positions corresponding to the steel cable, and the two pulleys are clamped on the steel cable by cooperating with each other through the grooves and form a sliding connection with the steel cable; the connecting hook cooperates with the two connecting rods, and when the connecting hook slides downward, the connecting hook tightens the two connecting rods and locks the pulley on the steel cable; there is a gap between the two pulleys, and the gap is used to cooperate with the connecting piece to pass through.

2. The large-span frame construction safety protection device according to claim 1 is characterized in that: One end of the two connecting rods corresponding to the connecting seat is rotatably connected to the connecting seat, and the two connecting rods are moved closer to or farther away from each other by rotation, so that the pulley and the steel cable can be clamped or separated.

3. The large-span frame construction safety protection device according to claim 2 is characterized in that: The connecting hook includes a connecting part and a hook part, the connecting part connects two connecting rods at the same time, and an external thread is provided at one end of the hook part corresponding to the connecting part, and the hook part is threadedly connected to the connecting part through the external thread after passing through the connecting seat; a nut is also threadedly connected to the hook part, and the nut is located below the connecting seat and is used to abut the connecting seat; the hook part adjusts the upper and lower positions through the nut, and tightens or loosens the two connecting rods with the connecting part.

4. The large-span frame construction safety protection device according to claim 3 is characterized in that: The hook portion is sleeved with a spring, one end of the spring abuts against the connecting seat, and the other end abuts against the nut.

5. The large-span frame construction safety protection device according to claim 3 is characterized in that: The connecting rod is conical, and the large end is hinged to the connecting seat, and the small end is equipped with a pulley; the connecting part includes a cross plate and a ring fixedly connected to the two ends of the cross plate, the ring is sleeved on the connecting rod, the cross plate is threadedly connected to the hook part, and the cross plate moves up and down with the ring, and the ring cooperates with the conical surface of the connecting rod to drive the two connecting rods closer to each other.

6. The large-span frame construction safety protection device according to claim 5 is characterized in that: The groove on the pulley is arc-shaped, and the cross-section of the steel cable is circular and matches the arc of the groove.

7. The large-span frame construction safety protection device according to claim 6 is characterized in that: The steel cable is a multi-layer strand steel cable formed by winding and braiding a plurality of steel wires. A plurality of annular protrusions are arranged on the bottom and the wall of the groove, and the protrusion is arranged in a triangle shape corresponding to one end of the steel cable, which is used to cooperate with the depression on the surface of the multi-layer strand steel cable for gripping.

8. The large-span frame construction safety protection device according to claim 2 is characterized in that: An elastic pressure sensing component is arranged between the two connecting rods, and an alarm is also installed on the connecting seat, and the alarm is connected to the elastic pressure sensing component. A pressure threshold is arranged in the alarm. When the pressure detected by the elastic pressure sensing component does not reach the pressure threshold, the alarm sounds an alarm.

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