Overhead protection device for scaffold construction

Abstract

The utility model relates to the technical field of scaffold construction, and disclose a kind of overhead protection device of scaffold construction, including scaffold, the front surface welding of scaffold has fixed rod, the back surface welding of scaffold has round bar, fixed rod is passed through cylinder and is rotationally connected with cylinder, the overhead protection device of this scaffold construction, by being provided with control assembly, the surface of fixed rod is stirred reel, reel drives cylinder to rotate when can be rolled to protection net, and in the process of reel direct rotation, limit rod will be in contact with the inclined surface of support block, then support block can slide on the surface of support rod, and in the force of losing contact, under the action of spring one, it is bounced up, and only one inclined surface is set in support block, therefore, when limit rod is in contact with the side surface of support block, the reverse rotation of cylinder can be limited, so that protection net can be rolled at the same time, to avoid cylinder reverse due to accidental touch and thus lead to the situation that protection net falls.

Description

Technical Field

[0001] This utility model relates to the field of scaffolding construction technology, specifically to a head protection device for scaffolding construction. Background Technology

[0002] Scaffolding is a temporary structural frame erected in construction to provide working platforms, material storage, and transportation tools for construction workers. It is mainly assembled from steel pipes, couplers, and scaffold boards. It is widely used in masonry, plastering, decoration, and structural construction processes, allowing construction workers to work safely at heights, and is an indispensable temporary facility in construction.

[0003] During construction, tools and materials (such as bricks, fasteners, and concrete blocks) often fall from heights. To protect construction workers, safety nets are usually tied to the scaffolding to protect them from above. The overhead safety nets can form a horizontal protective barrier above the construction workers, intercepting falling objects and preventing them from directly hitting the workers below or people on the ground, thus reducing the probability of personal injury accidents.

[0004] The existing method of fixing overhead safety nets directly to the surface of scaffolding requires untying the ropes and straps point by point during roll-up. This process requires manual operation, especially for large-area safety nets. The untying work is extensive, and the untied safety nets are irregular in shape when rolled up, making it difficult to fold neatly or roll into a cylindrical shape. This occupies a lot of transportation space and is prone to loosening during transportation, increasing the workload of secondary sorting. To address this problem, we have proposed an overhead safety device for scaffolding construction. Utility Model Content

[0005] The purpose of this invention is to provide a head protection device for scaffolding construction to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a head protection device for scaffolding construction, comprising a scaffold, a fixing rod welded to the front of the scaffold, a round rod welded to the back of the scaffold, the fixing rod penetrating through a round cylinder and rotatably connected to the round cylinder, a protective net fixedly installed on the outer wall of the round cylinder, and a control component and a driven component provided on the side of the round cylinder, the control component comprising: A reel, wherein a support rod is provided on the side of the reel, a support block is provided on the outer wall of the support rod, and a spring is provided on the side of the support block. When the oblique surface of the support block is no longer in contact, the support block will spring up under the action of the spring. The slide plate has a slot inside and a second spring on its side. The second spring provides a spring force to the slide plate when it loses its resistance. The outer wall of the slide plate has a slip ring. The limiting rod at the top of the slip ring is used to abut against the inclined surface of the support block. This prevents the cylinder from accidentally reversing and causing the protective net to fall while the protective net is being rolled up.

[0007] Preferably, the fixing rod passes through the reel and is rotatably connected to the reel. The left side of the reel is fixedly connected to the side of the cylinder. When the reel rotates on the surface of the fixing rod, the cylinder can rotate synchronously.

[0008] Preferably, a support rod is welded to the right side of the reel. The support rod passes through the support block and is slidably connected to the support block. The support block has a chamfered surface. When the chamfered surface of the support block is abutted, it can move laterally along the surface of the support rod in a stable manner.

[0009] Preferably, the left side of the support block is fixedly connected to one end of the first spring, and the other end of the first spring is fixedly installed on the right side of the reel. When the chamfered surface inside the support block is no longer in contact, the support block will spring up under the action of the first spring.

[0010] Preferably, the inner wall of the fixing rod is fixedly connected to one end of the second spring, and the other end of the second spring is fixedly installed on the side of the slide plate. The slide plate has a slot, which can restrict the lateral movement of the slide plate.

[0011] Preferably, the top of the slide plate is welded to the inner wall of the slip ring, the inner wall of the slip ring is in contact with the outer wall of the fixed rod, and a limit rod is welded to the outer wall of the slip ring. When the slip ring moves on the outer wall of the fixed rod, the slide plate and the limit rod can move laterally synchronously.

[0012] Preferably, the driven component includes a spring three, one end of which is fixedly installed on the inner wall of the fixed rod, and the other end of which is fixedly installed on the bottom of the pressure plate. When the pressure plate loses the pressure force, it can spring up from inside the fixed rod under the action of the spring three.

[0013] Preferably, a locking block is welded to the top of the pressure plate, and a pressure rod is welded to the top of the pressure plate. When the pressure rod is subjected to a squeezing force, the pressure plate fixed to the bottom of the pressure rod can drive the locking block to move longitudinally in sync.

[0014] Compared with the prior art, this utility model provides a head protection device for scaffolding construction, which has the following beneficial effects: 1. The overhead protection device for this scaffolding construction is equipped with a control component. When the roller is turned on the surface of the fixed rod, the roller drives the cylinder to rotate, which can rewind the protective net. During the forward rotation of the roller, the limit rod will abut against the beveled surface of the support block, so the support block can slide on the surface of the support rod. When the abutment force is lost, it will bounce up under the action of spring one. Since there is only one beveled surface in the support block, when the limit rod abuts against the side of the support block, it can limit the reverse rotation of the cylinder. Thus, while rewinding the protective net, it can prevent the cylinder from accidentally reversing due to contact, which would cause the protective net to fall.

[0015] 2. The overhead protection device for this scaffolding construction is equipped with a driven component. Due to the setting of the limit rod, the reverse rotation of the roller can be restricted. Therefore, when the locking block is located in the slot opened in the sliding plate, the lateral movement of the slip ring and the limit rod can be restricted, thereby ensuring the stability of the cylinder during use. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the protective mesh structure of this utility model; Figure 3 This is a schematic diagram of the reel structure of this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the fixing rod of this utility model.

[0017] In the diagram: 1. Scaffolding; 2. Fixed rod; 3. Round rod; 4. Cylinder; 5. Protective net; 6. Control component; 61. Roller; 62. Support rod; 63. Support block; 64. Spring 1; 65. Spring 2; 66. Slide plate; 67. Slot; 68. Slip ring; 69. Limiting rod; 7. Driven component; 71. Spring 3; 72. Pressure plate; 73. Slot; 74. Pressure rod. Detailed Implementation

[0018] like Figures 1-4As shown, this utility model provides a technical solution: a head protection device for scaffolding construction, including a scaffold 1, a fixing rod 2 welded to the front of the scaffold 1, a round rod 3 welded to the back of the scaffold 1, the fixing rod 2 passing through a cylindrical cylinder 4 and rotatably connected to the cylindrical cylinder 4, a protective net 5 fixedly installed on the outer wall of the cylindrical cylinder 4, and a control component 6 and a driven component 7 provided on the side of the cylindrical cylinder 4. The control component 6 includes: a roller 61, a support rod 62, a support block 63, a first spring 64, a second spring 65, a sliding plate 66, a slot 67, a slip ring 68, and a limiting rod 69. The support rod 62 is provided on the side of the roller 61, the support block 63 is provided on the outer wall of the support rod 62, and the first spring 64 is provided on the side of the support block 63. When the oblique surface of the support block 63 is no longer in contact, the support block 63 will spring back under the action of the first spring 64. The slide plate 66 has a slot 67 inside, and a second spring 65 is provided on the side of the slide plate 66. The second spring 65 provides a springing force for the slide plate 66 when it loses its resistance. A slip ring 68 is provided on the outer wall of the slide plate 66. The limiting rod 69 at the top of the slip ring 68 is used to abut against the inclined surface of the support block 63. During the forward rotation of the winding wheel 61, the limiting rod 69 will abut against the inclined surface of the support block 63, so the support block 63 can slide on the surface of the support rod 62 and spring up under the action of the first spring 64 when it loses its resistance. Since there is only one inclined surface inside the support block 63, the limiting rod 69 can restrict the reverse rotation of the cylinder 4 when it abuts against the side of the support block 63. This can prevent the cylinder 4 from accidentally reversing and causing the protective net 5 to fall while the protective net 5 is being wound up.

[0019] A fixed rod 2 passes through and is rotatably connected to the winding wheel 61. The left side of the winding wheel 61 is fixedly connected to the side of the cylinder 4. When the winding wheel 61 rotates on the surface of the fixed rod 2, the cylinder 4 rotates synchronously. A support rod 62 is welded to the right side of the winding wheel 61. The support rod 62 passes through and is slidably connected to the support block 63. The support block 63 has a chamfered surface. When the chamfered surface of the support block 63 is contacted, it can move laterally stably along the surface of the support rod 62. The left side of the support block 63 is fixedly connected to one end of a spring 64. The other end of the spring 64 is fixedly installed on the right side of the winding wheel 61. When the chamfered surface of the support block 63 is no longer contacted, the support block 63 will spring up under the action of the spring 64. The inner wall of the fixed rod 2 is fixedly connected to one end of the second spring 65, and the other end of the second spring 65 is fixedly installed on the side of the slide plate 66. The slide plate 66 has a slot 67, which restricts the lateral movement of the slide plate 66. The top of the slide plate 66 is welded to the inner wall of the slip ring 68, and the inner wall of the slip ring 68 fits against the outer wall of the fixed rod 2. A limit rod 69 is welded to the outer wall of the slip ring 68. When the slip ring 68 moves on the outer wall of the fixed rod 2, the slide plate 66 and the limit rod 69 can move laterally synchronously. The driven component 7 includes a third spring 71, one end of which is fixedly installed on the inner wall of the fixed rod 2, and the other end of which is fixedly installed on the bottom of the pressure plate 72. When the pressure plate 72 loses its pressure, it can spring up from inside the fixed rod 2 under the action of the third spring 71. A locking block 73 is welded to the top of the pressure plate 72, and a pressure rod 74 is welded to the top of the pressure plate 72. When the pressure rod 74 is subjected to a squeezing force, the pressure plate 72 fixed to the bottom of the pressure rod 74 can drive the locking block 73 to move longitudinally in sync.

[0020] In this utility model, during use, the scaffolding 1 can protect construction workers through the protective net 5. When the protective net 5 needs to be rolled up after use, one end of the binding strap of the protective net 5 is removed from the surface of the round rod 3. After removal, the roller 61 is turned on the surface of the fixed rod 2. When the roller 61 rotates forward, the cylinder 4 fixed to the side of the roller 61 can rotate synchronously to roll up the protective net 5. During the forward rotation of the roller 61, the limiting rod 69 will abut against the inclined surface of the support block 63. The support block 63 can then slide on the surface of the support rod 62 and spring up under the action of the spring 64 when the abutment is lost. Since the support block 63 only has one inclined surface, the limiting rod 69 abuts against the side of the support block 63. When the cylinder 4 is turned over, the reverse rotation can be restricted, so that the protective net 5 can be rolled up while the cylinder 4 is accidentally turned over, which would cause the protective net 5 to fall. When the protective net 5 is used again to protect the construction personnel, the pressure rod 74 is pressed in the fixed rod 2. The pressure rod 74 drives the pressure plate 72 to move downward and squeezes the spring 71. When the pressure plate 72 moves, the locking block 73 can be removed from the locking groove 67 opened in the sliding plate 66. After it is removed, the pressing force is maintained and the slip ring 68 is moved laterally so that the limiting rod 69 is away from the winding wheel 61. Then the winding wheel 61 is reversed, and the cylinder 4 can release the protective net 5. After release, the protective net 5 is tied to the surface of the cylinder 3 with straps to complete the protection of the construction personnel.

[0021] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A head protection device for scaffolding construction, comprising scaffolding (1), characterized in that: A fixing rod (2) is welded to the front of the scaffold (1), and a round rod (3) is welded to the back of the scaffold (1). The fixing rod (2) passes through the cylinder (4) and is rotatably connected to the cylinder (4). A protective net (5) is fixedly installed on the outer wall of the cylinder (4). A control component (6) and a driven component (7) are provided on the side of the cylinder (4). The control component (6) includes: A reel (61) is provided with a support rod (62) on its side. A support block (63) is provided on the outer wall of the support rod (62). A spring (64) is provided on the side of the support block (63). When the oblique surface of the support block (63) is no longer in contact, the support block (63) will spring up under the action of the spring (64). The slide (66) has a slot (67) inside, and a second spring (65) is provided on the side of the slide (66). The second spring (65) provides a spring force for the slide (66) to lose its resistance. A slip ring (68) is provided on the outer wall of the slide (66), and a limiting rod (69) at the top of the slip ring (68) is used to abut against the inclined surface of the support block (63).

2. The head protection device for scaffolding construction according to claim 1, characterized in that: The fixing rod (2) passes through the reel (61) and is rotatably connected to the reel (61). The left side of the reel (61) is fixedly connected to the side of the cylinder (4).

3. The head protection device for scaffolding construction according to claim 2, characterized in that: A support rod (62) is welded to the right side of the reel (61). The support rod (62) passes through the support block (63) and is slidably connected to the support block (63). The support block (63) has a beveled surface inside.

4. The head protection device for scaffolding construction according to claim 3, characterized in that: The left side of the support block (63) is fixedly connected to one end of the spring (64), and the other end of the spring (64) is fixedly installed on the right side of the reel (61).

5. The head protection device for scaffolding construction according to claim 1, characterized in that: The inner wall of the fixing rod (2) is fixedly connected to one end of the second spring (65), and the other end of the second spring (65) is fixedly installed on the side of the slide plate (66). A slot (67) is provided in the slide plate (66).

6. The head protection device for scaffolding construction according to claim 5, characterized in that: The top of the slide plate (66) is welded to the inner wall of the slip ring (68), the inner wall of the slip ring (68) is in contact with the outer wall of the fixing rod (2), and a limit rod (69) is welded to the outer wall of the slip ring (68).

7. The head protection device for scaffolding construction according to claim 1, characterized in that: The driven component (7) includes a spring three (71), one end of which is fixedly installed on the inner wall of the fixed rod (2), and the other end of which is fixedly installed on the bottom of the pressure plate (72).

8. The head protection device for scaffolding construction according to claim 7, characterized in that: A locking block (73) is welded to the top of the pressure plate (72), and a pressure rod (74) is welded to the top of the pressure plate (72).

Images