Construction safety device

Abstract

The embodiment of the utility model discloses a construction safety device, and relates to the field of building construction safety protection, the construction safety device comprises a safety box, a limiting device and a locking device, an accommodating cavity is formed in the safety box, a fixed pulley and a movable pulley are arranged in the accommodating cavity, and a safety rope is wound outside the fixed pulley and the movable pulley; the limiting device is provided with a limiting rod and a limiting spring, when the limiting rod abuts against the movable pulley, the limiting rod conducts rotation limiting on the movable pulley, and the limiting spring abuts against the movable pulley, so that the limiting spring conducts position limiting on the movable pulley; the locking device is provided with a locking piece, after the limiting rod conducts rotation limiting on the movable pulley, the locking piece abuts against the fixed pulley, so that the locking piece conducts rotation limiting on the fixed pulley, and by arranging the limiting device and the locking device, emergency braking can be conducted on the safety rope.

Description

Technical Field

[0001] The present application relates to the field of building construction safety protection, and in particular to a construction safety device. Background Art

[0002] In modern construction, especially in high-altitude work environments, safety ropes are crucial personal protective equipment, and their importance cannot be overstated. High-altitude work, such as construction, bridge construction, and electrical maintenance, often involves high-risk and challenging environments. Therefore, ensuring the safety of workers working at height is a top priority. Safety ropes not only connect workers to their anchor points but also mitigate impact and protect workers from serious injury in the event of an accident.

[0003] Most safety ropes currently on the market offer basic load-bearing and connection functions, but they still lack sufficient emergency braking and cushioning capabilities. Traditional safety ropes typically rely on simple stretching and elastic materials to mitigate impact, but this approach is often ineffective and can easily cause strain and secondary injuries to workers. Furthermore, while some high-end safety ropes are equipped with cushioning devices, these devices are often complex, heavy, and inconvenient to use, and can even be ineffective in emergency situations.

[0004] As in the prior art, there is a suspension structure for a construction safety rope (application number: 202322332618.5) which is provided with a first baffle and a second baffle. In the suspension structure of the construction safety rope, a first spring is provided between the first baffle and the first fixed block, so that the first slide rod can slide along the hole on the buckle body, and a second spring is provided between the second baffle and the second fixed block, so that the second slide rod can slide along the hole on the buckle body. Through the provision of the first connecting ring and the third connecting ring, each connecting ring is connected to a safety rope of a different color. When the device is in use, there is a certain risk of falling off, and the safety is insufficient.

[0005] At the same time, there is also a method for preventing construction workers from falling on sloped roofs in the prior art (application number: 201910530818.7). This method uses a safety rope in conjunction with a pre-buried steel pipe through structures such as a cross buckle and a safety bend, but this method requires the steel pipe to be fixed, the operation process is cumbersome, and there is no emergency braking function.

[0006] Therefore, how to realize the emergency braking function of the safety rope is an important technical problem that needs to be solved urgently. Utility Model Content

[0007] The technical solutions adopted by the present invention to solve the above technical problems are as follows:

[0008] The present application provides a construction safety device, comprising:

[0009] A safety box, wherein a receiving cavity is formed in the safety box, a fixed pulley and a movable pulley are provided in the receiving cavity, and the safety rope is wound around the fixed pulley and the movable pulley;

[0010] A limiting device is provided with a limiting rod and a limiting spring. When the limiting rod abuts against the movable pulley, the limiting rod limits the rotation of the movable pulley, and the limiting spring abuts against the movable pulley, so that the limiting spring limits the position of the movable pulley;

[0011] The locking device is provided with a locking piece. When the limiting rod limits the rotation of the movable pulley, the locking piece abuts against the fixed pulley, so that the locking piece limits the rotation of the fixed pulley.

[0012] Optionally, in some embodiments of the present application, in the limiting device, the limiting rod includes:

[0013] a fixing sleeve, the fixing sleeve being mounted on the safety box, the fixing sleeve defining a fixing cavity therein, and the fixing cavity containing a compression spring;

[0014] A limit strip is arranged in the fixed sleeve, one end of the limit strip abuts against the compression spring, and the other end of the limit strip is outside the fixed sleeve. A limit member is provided on the limit strip, and the limit member is located in the fixed sleeve. The limit member abuts against the fixed sleeve so that the limit strip is partially located in the fixed sleeve.

[0015] Optionally, in some embodiments of the present application, a limiting groove is provided in the fixing sleeve, and the limiting groove is connected to the fixing cavity. When the limiting strip moves in the fixing cavity, the limiting member moves in the limiting groove to limit the movement of the limiting strip.

[0016] Optionally, in some embodiments of the present application, a fixing ring is provided on the outer sleeve of the rotating shaft of the movable pulley, and a limiting hole is provided on the fixing ring corresponding to the position of the limiting strip;

[0017] A fixing hole is provided on the movable pulley. When the movable pulley rotates to a certain position, the limiting hole corresponds to the fixing hole, so that the end of the limiting bar close to the movable pulley abuts against the fixing hole through the limiting hole.

[0018] The limiting spring is disposed outside the fixing sleeve, and the limiting spring abuts against the fixing ring.

[0019] Optionally, in some embodiments of the present application, the locking device includes:

[0020] A ratchet ring is sleeved outside the rotating shaft of the fixed pulley, and the ratchet ring is integrally connected to the rotating shaft of the fixed pulley;

[0021] a restraining rod integrally connected to the fixing ring, wherein the restraining rod extends from the movable pulley to the fixed pulley;

[0022] When the movable pulley moves toward the fixed pulley to a position, the stopping rod abuts against the ratchet ring, so that the fixed pulley stops rotating.

[0023] Optionally, in some embodiments of the present application, two limit blocks are provided on the safety box, and the limit blocks are respectively provided on both sides of the movable pulley, so that when the movable pulley rotates, the limit blocks abut against the stopping rod.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] In the embodiment of the present application, a limiting device and a locking device are provided. When a construction worker accidentally falls, the pulling force of the safety rope can lock the movable pulley and the fixed pulley through the limiting device and the locking device to prevent the construction worker from falling further, thereby achieving the effect of emergency braking. In addition, by providing the limiting device, the safety rope is prevented from being immediately tightened when the construction worker accidentally falls, resulting in no room for buffering for the construction worker. The limiting device can protect the construction worker to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic diagram of the internal structure of a construction safety device provided in an embodiment of the present application;

[0028] Figure 2 A schematic diagram of the overall structure of the limiting device provided in an embodiment of the present application;

[0029] Figure 3 A schematic diagram of the internal structure of the construction safety device provided in an embodiment of the present application;

[0030] Figure 4 for Figure 3 A in the middle is an enlarged structural diagram;

[0031] Figure 5 This is a schematic diagram of the overall structure of the locking device provided in an embodiment of the present application.

[0032] Description of reference numerals:

[0033] 100. Safety box; 110. Accommodating cavity; 120. Fixed pulley; 130. Movable pulley; 131. Fixing hole; 200. Limiting device; 210. Limiting rod; 211. Fixing sleeve; 2111. Fixing cavity; 2112. Limiting groove; 212. Limiting strip; 213. Compression spring; 214. Limiting member; 220. Limiting spring; 230. Support member; 300. Locking device; 310. Locking member; 320. Fixing ring; 321. Limiting hole; 330. Ratchet ring; 400. Limiting block; 500. Safety rope. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. It is understood that the drawings are only provided for reference and illustration purposes and are not used to limit the present application. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0035] Specifically, if Figure 1-Figure 5 As shown, a construction safety device is provided in an embodiment of the present application, which is mainly used to assist the emergency braking process of the construction safety rope 500. In a conventional setting, the two ends of the construction safety rope 500 are respectively tied to the columns or brackets on both sides to facilitate people to perform construction operations at the edge of the work surface.

[0036] The construction safety device is connected and installed via a safety rope 500, specifically:

[0037] A accommodating chamber 110 is provided in the safety box 100, in which a fixed pulley 120 and a movable pulley 130 are provided. A safety rope 500 is stored on the fixed pulley 120, and one end of the safety rope 500 is led out from the safety box 100 by being wound around the movable pulley 130 to facilitate protection of construction workers.

[0038] The safety rope 500 on the fixed pulley 120 is in a storage state, which is convenient for supporting the construction workers. On the fixed pulley 120, one end of the safety rope 500 is wrapped around the movable pulley 130 and can be led out from the opening on the safety box 100, which is convenient for the construction workers to use.

[0039] Among them, in the safety box 100, a limiting device 200 is provided. The limiting device 200 limits the movable pulley 130. Its main structure is a limiting rod 210 and a limiting spring 220. The limiting rod 210 limits the rotation of the movable pulley 130, and the limiting spring 220 limits the position of the movable pulley 130. Specifically:

[0040] In the limiting device 200, a support member 230 is provided, which is fixedly installed in the safety box 100 and is located between the movable pulley 130 and the fixed pulley 120. A fixing sleeve 211 is provided on the side of the support member 230 facing the movable pulley 130. A fixing cavity 2111 is provided in the fixing sleeve 211. A compression spring 213 is provided in the limiting fixing cavity 2111. One end of the compression spring 213 abuts against the support member 230. Part 230, a limit strip 212 is provided at the other end of the compression spring 213, and the limit strip 212 is partially located in the fixed sleeve 211, so that the limit strip 212 can be driven by the compression spring 213, and the end of the limit strip 212 away from the compression spring 213 is directed toward the movable pulley 130, so that when the limit strip 212 abuts against the movable pulley 130, the limit strip 212 can squeeze the compression spring 213 to prevent the limit strip 212 from directly hitting the support part 230.

[0041] In the above, the main function of the limit bar 212 is to perform steering braking on the movable pulley 130, and the basis for its implementation is that a fixing hole 131 is opened on the rotating shaft of the movable pulley 130, and the cross-sectional shape of the fixing hole 131 is the same as the cross-sectional shape of the limit bar 212, so that when the limit bar 212 abuts against the movable pulley 130, the rotation of the axle on the movable pulley 130 causes the position of the fixing hole 131 to rotate to the position of the limit bar 212, so that the limit bar 212 can be located in the fixing hole 131, so that the limit bar 212 can perform rotation braking on the movable pulley 130.

[0042] Among them, Figure 2 As shown, a limit spring 220 is further provided between the support member 230 and the movable pulley 130, one end of the limit spring 220 abuts against the support member 230 and is sleeved outside the fixing sleeve 211, and the other end of the limit spring 220 abuts against the rotating shaft of the movable pulley 130. Since the movable pulley 130 itself needs to rotate, in order to prevent the rotation of the movable pulley 130 from causing the limit spring 220 to deviate, a fixing ring 320 is provided on the rotating shaft of the movable pulley 130, and a limit hole 321 is provided on the fixing ring 320 at a position corresponding to the fixing hole 131. Since the fixing ring 320 rotates relative to the rotating shaft and is fixed relative to the safety box 100, the limit spring 220 can well limit the movable pulley 130 and prevent the movable pulley 130 from moving toward the fixed pulley 120.

[0043] Among them, in the embodiment of the present application, since the limit bar 212 is located in the fixed cavity 2111 and is in contact with the compression spring 213, when the movable pulley 130 moves in the direction away from the fixed pulley 120, the limit bar 212 has a probability of falling off from the fixed cavity 2111. In order to avoid this situation, a limit groove 2112 is opened in the fixed cavity 2111. The limit groove 2112 is opened at both ends of the fixed cavity 2111, and a limit member 214 is set on both sides of the limit bar 212. The limit member 214 is located in the limit groove 2112, so that when the limit bar 212 moves, the limit groove 2112 restricts the movement of the limit member 214 to prevent the limit bar 212 from falling off from the fixed cavity 2111.

[0044] Preventing the movable pulley 130 from moving toward the fixed pulley 120 can facilitate extending the safety rope 500 for use through the rotation of the movable pulley 130, and also facilitates the adjustment of the safety rope 500.

[0045] However, in special circumstances, such as when a construction worker accidentally falls during operation, even with the protection of the safety rope 500, the safety rope 500 will move quickly under the weight of the human body. Due to the influence of inertia, the safety rope 500 will drive the movable pulley 130 to move toward the fixed pulley 120 to obtain a longer length of the safety rope 500. At this time, due to the provision of the limit rod 210, the fixing hole 131 and the limit hole 321, when the limit rod 210 is docked with the fixing hole 131, the limit rod 210 stops the movable pulley 130 from rotating. At the same time, the limit spring 220 also stops the movable pulley 130 in position, preventing the movable pulley 130 from continuing to move toward the fixed pulley 120.

[0046] Among them, since the rotating shaft of the movable pulley 130 itself is in a rotating state, when the fixed ring 320 is mounted, in order to prevent the fixed ring 320 from being rotated by the rotating shaft, locking members 310 are provided on both sides of the fixed ring 320. In the embodiment of the present application, the locking member 310 is a stopper rod, and the direction in which the stopper rod extends is the direction in which the movable pulley 130 extends toward the fixed pulley 120. In addition, two limit blocks 400 are provided on the safety box 100. The two limit blocks 400 are located between the movable pulley 130 and the fixed pulley 120, and the two limit blocks 400 are respectively in contact with the stopper rods, as shown in FIG. Figure 1 As shown, when the movable pulley 130 rotates, the combination of the restraining rod and the fixing ring 320 cannot rotate along with the rotation of the movable pulley 130 due to the resistance of the limit block 400 .

[0047] Among them, a ratchet ring 330 is sleeved on the rotating shaft of the fixed pulley 120, and the ratchet ring 330 rotates along with the rotation of the fixed pulley 120. When the movable pulley 130 moves toward the fixed pulley 120, the stopping rod on the movable pulley 130 moves toward the fixed pulley 120 until the stopping rod abuts against the ratchet teeth on the ratchet ring 330, thereby facilitating the braking of the fixed pulley 120, so that the fixed pulley 120 cannot continue to release the safety rope 500, thereby achieving a stable structural state.

[0048] In the above description, the ratchet ring 330 and the stop rod together constitute a locking device 300 .

[0049] Among them, when the stopping rod brakes the fixed pulley 120, since one end of the safety rope 500 is always under force, and the direction of the force is towards the construction worker who accidentally falls, at this time, since the stopping rod stops the fixed pulley 120 through the ratchet, the safety rope 500 cannot be released, and the construction worker is able to stabilize, and the fixed pulley 120 and the movable pulley 130 are locked by the construction worker's own gravity, thereby achieving the effect of emergency braking.

[0050] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A construction safety device, characterized in that: include: A safety box, wherein a receiving chamber is provided in the safety box, wherein a fixed pulley and a movable pulley are provided in the receiving chamber, and safety ropes are wound around the fixed pulley and the movable pulley; A limiting device is provided with a limiting rod and a limiting spring. When the limiting rod abuts against the movable pulley, the limiting rod limits the rotation of the movable pulley, and the limiting spring abuts against the movable pulley, so that the limiting spring limits the position of the movable pulley; The locking device is provided with a locking piece. When the limiting rod limits the rotation of the movable pulley, the locking piece abuts against the fixed pulley, so that the locking piece limits the rotation of the fixed pulley.

2. A construction safety device according to claim 1, characterized in that: In the limiting device, the limiting rod includes: a fixing sleeve, the fixing sleeve being mounted on the safety box, the fixing sleeve defining a fixing cavity therein, and the fixing cavity containing a compression spring; A limit strip is arranged in the fixed sleeve, one end of the limit strip abuts against the compression spring, and the other end of the limit strip is outside the fixed sleeve. A limit member is provided on the limit strip, and the limit member is located in the fixed sleeve. The limit member abuts against the fixed sleeve so that the limit strip is partially located in the fixed sleeve.

3. A construction safety device according to claim 2, characterized in that: A limiting groove is provided in the fixing sleeve, and the limiting groove is connected to the fixing cavity. When the limiting strip moves in the fixing cavity, the limiting member moves in the limiting groove to limit the movement of the limiting strip.

4. A construction safety device according to claim 3, characterized in that: A fixing ring is provided on the outer sleeve of the rotating shaft of the movable pulley, and a limiting hole is provided on the fixing ring corresponding to the position of the limiting strip; A fixing hole is provided on the movable pulley. When the movable pulley rotates to a certain position, the limiting hole corresponds to the fixing hole, so that the end of the limiting bar close to the movable pulley abuts against the fixing hole through the limiting hole. The limiting spring is disposed outside the fixing sleeve, and the limiting spring abuts against the fixing ring.

5. A construction safety device according to claim 4, characterized in that: The locking device comprises: A ratchet ring is sleeved outside the rotating shaft of the fixed pulley, and the ratchet ring is integrally connected to the rotating shaft of the fixed pulley; a restraining rod integrally connected to the fixing ring, wherein the restraining rod extends from the movable pulley to the fixed pulley; When the movable pulley moves to a position toward the fixed pulley, the stopping rod abuts against the ratchet ring, causing the fixed pulley to stop rotating; The locking component is a restraining rod.

6. A construction safety device according to claim 5, characterized in that: The safety box is provided with two limit blocks, which are respectively arranged at two sides of the movable pulley, so that when the movable pulley rotates, the limit blocks abut against the stopping rod.

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