Municipal engineering construction protective net

Abstract

The utility model discloses a municipal engineering construction protective net which comprises a pair of fixing rods, side holes are formed in the front faces of the fixing rods, a pair of fixing blocks are fixedly connected to the outer side walls of the fixing rods, rotating rods are rotatably connected to the interiors of the fixing blocks, and handles are fixedly connected to the outer walls of one ends of the rotating rods. And meanwhile, the other end of the rotating rod is fixedly connected with a ratchet wheel, the ratchet wheel corresponds to the side hole, and an inner cavity is formed in the fixing rod. In the actual use process, the fixing rod is connected with the fixing block through the side hole, the handle on the fixing block is connected with the ratchet wheel through the rotating rod, when a user pulls the sliding rod in the fixing rod upwards, the sliding rod drives the rack to move upwards, and due to the oblique design of the rack and the bent end of the ratchet wheel, the ratchet wheel can move upwards. When the rack moves upwards, the ratchet wheel can be driven to rotate and reset ceaselessly, and the ratchet wheel is clamped in a gap between the teeth under the condition that the ratchet wheel cannot move downwards, so that reverse movement of the sliding rod is prevented, and the stability of the sliding rod is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering construction protection equipment, in particular to a municipal engineering construction protection net. Background Art

[0002] Municipal engineering construction protection nets are safety facilities used at municipal engineering construction sites, designed to protect the safety of workers, pedestrians and the surrounding environment. This type of protection net is usually made of high-strength materials (such as polyethylene, polypropylene, etc.) and has tensile, tear and weather resistance. They are hung or installed on the perimeter of construction sites such as buildings, bridges, roads, etc. to form a closed safety area to prevent construction materials, tools or debris from falling from the construction site, while also preventing unauthorized personnel from entering the construction area. The setting of municipal engineering construction protection nets helps reduce the possibility of accidents and ensures the safety and orderly progress of the construction process;

[0003] After searching, the Chinese patent with the publication number: CN213927800U discloses a safety protection net for municipal engineering construction. The patent records that the first connecting seat and the second connecting seat connected by bolts facilitate the disassembly and assembly of the protection box, which can ensure the fixation of the protection box and facilitate the disassembly during transportation and storage, and the operation is more convenient and simple.

[0004] In this solution, when the height of the protective net is adjusted, it is achieved through screws and nuts, but the screw and nut connection usually relies on the friction of the thread to remain fixed, but after vibration or long-term use, the thread may loosen, resulting in changes in the adjustment position, thereby affecting the stability and accuracy of the equipment. At the same time, the nut and screw need to be repeatedly turned during adjustment, and the process is time-consuming and labor-intensive, affecting work efficiency. In order to solve this technical problem, the utility model proposes a municipal engineering construction protective net. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In this solution, when the height of the protective net is adjusted, it is achieved through screws and nuts, but the screw and nut connection usually relies on the friction of the thread to remain fixed, but after vibration or long-term use, the thread may loosen, resulting in changes in the adjustment position, thereby affecting the stability and accuracy of the equipment. At the same time, the nut and screw need to be repeatedly turned during adjustment, and the process is time-consuming and labor-intensive, affecting work efficiency. In order to solve this technical problem, the utility model proposes a municipal engineering construction protective net.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a municipal engineering construction protection net, comprising a pair of fixed rods, the front sides of the fixed rods are provided with side holes, the outer side walls of the fixed rods are fixedly connected to a pair of fixed blocks, the fixed blocks are rotatably connected to a rotating rod, and a handle is fixedly connected to the outer wall of one end of the rotating rod, and a ratchet is fixedly connected to the other end of the rotating rod, and the ratchet corresponds to the side holes, an inner cavity is provided inside the fixed rods, a sliding rod is arranged inside the inner cavity, a rack is fixedly connected to one side of the sliding rod, and the rack is meshed with the ratchet, a limiting plate is fixedly connected to the other side of the sliding rod, a sliding groove is provided inside the fixed rods, and the limiting plate is slidably connected in the sliding groove, the top of the sliding rod is fixedly connected to an outer shell, and a protective net is arranged inside the outer shell.

[0009] Preferably, a motor is fixedly connected inside the shell, a rotating shaft is fixed to the output end of the motor, and the other end of the rotating shaft is rotatably connected inside the shell.

[0010] Preferably, a winding drum is fixedly connected to the outer side wall of the rotating shaft, and one end of the protective net is fixedly connected to the winding drum, while the protective net passes through the outer shell and extends to the bottom of the outer shell.

[0011] Preferably, both sides of the bottom of the protection net are fixedly connected to the limiting ring 1, and both ends of the bottom of the protection net are fixedly connected to the limiting ring 2.

[0012] Preferably, the first limiting ring and the second limiting ring are slidably connected with a latch pin inside, the inner side walls of the fixing rods on both sides are provided with inner holes corresponding to the latch pin, and the latch pin is inserted into the inner holes.

[0013] Preferably, the bottoms of the fixing rods on both sides are fixedly connected to bases, and the bottoms of the bases are provided with anti-slip grooves.

[0014] (III) Beneficial effects

[0015] The utility model provides a municipal engineering construction protection net, which has the following beneficial effects:

[0016] (1) The fixed rod is connected to the fixed block through a side hole, and the handle on the fixed block is connected to the ratchet through a rotating rod. When the user pulls the sliding rod inside the fixed rod upward, the sliding rod drives the rack to move upward. Due to the oblique design of the rack and the curved end of the ratchet, the rack drives the ratchet to rotate and reset continuously when moving upward, and when it cannot move downward, it is stuck in the gap between the teeth, thereby preventing the sliding rod from moving in the opposite direction, ensuring its stability, solving the problem of traditional fixing and adjustment through complex screws and nuts, and improving work efficiency.

[0017] (2) A motor and a take-up drum are installed in the housing. The motor drives the take-up drum to rotate, gradually releasing the protective net in the housing. The protective net is restricted during movement by the design of limit rings 1 and 2 until the pin at the bottom is aligned with the inner hole. Once the pin is inserted into the inner hole, the protective net will be fixed in the housing to protect the working area. This design solves the need for quick placement and convenient storage of the protective net, while ensuring the stability and reliability of the protective net during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the side structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the bottom structure of the protective net of the utility model.

[0022] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0023] In the figure: 1. fixed rod; 2. side hole; 3. fixed block; 4. handle; 5. rotating rod; 6. ratchet; 7. sliding rod; 8. rack; 9. inner cavity; 10. slide groove; 11. limit plate; 12. outer shell; 13. motor; 14. take-up drum; 15. protective net; 16. limit ring 1; 17. latch; 18. inner hole; 19. limit ring 2; 20. base; 21. rotating shaft. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] See also Figure 1-5 , the utility model provides a technical solution:

[0026] Embodiment 1: A municipal engineering construction protection net comprises a pair of fixed rods 1, a side hole 2 is provided on the front side of the fixed rod 1, a pair of fixed blocks 3 are fixedly connected to the outer side wall of the fixed rod 1, a rotating rod 5 is rotatably connected inside the fixed block 3, and a handle 4 is fixedly connected to the outer wall of one end of the rotating rod 5, and a ratchet 6 is fixedly connected to the other end of the rotating rod 5, and the ratchet 6 corresponds to the side hole 2, an inner cavity 9 is provided inside the fixed rod 1, a sliding rod 7 is arranged inside the inner cavity 9, a rack 8 is fixedly connected to one side of the sliding rod 7, and the rack 8 is meshed with the ratchet 6, and a limiting plate 11 is fixedly connected to the other side of the sliding rod 7, and a sliding groove 10 is provided inside the fixed rod 1, and the limiting plate 11 is slidably connected in the sliding groove 10, a shell 12 is fixedly connected to the top of the sliding rod 7, and a protective net 15 is arranged inside the shell 12.

[0027] There is a sliding rod 7 inside the fixed rod 1. Pulling the sliding rod 7 upward will cause the rack 8 to move upward and drive the ratchet 6 to rotate slightly. Due to the oblique downward design of the rack 8 and the curved end of the ratchet 6, when the rack 8 moves upward, the ratchet 6 will be stuck in the gap between the teeth on both sides, preventing the rack 8 from moving downward, thereby fixing the position of the sliding rod 7, preventing it from moving in the opposite direction, and ensuring its stability. The sliding rod 7 is limited by the limit plate 11 when moving, keeping the moving direction consistent. If the sliding rod 7 needs to move downward, just swing the handle 4 on the fixed block 3 to disengage the ratchet 6 so as to quickly adjust the protective net 15 in the housing 12.

[0028] Embodiment 2: The difference between this embodiment and embodiment 1 lies in that, a motor 13 is fixedly connected inside the housing 12, a rotating shaft 21 is fixed at the output end of the motor 13, the other end of the rotating shaft 21 is rotatably connected inside the housing 12, a winding drum 14 is fixedly connected to the outer wall of the rotating shaft 21, and one end of a protective net 15 is fixedly connected to the winding drum 14, while the protective net 15 passes through the housing 12 and extends to the bottom of the housing 12, both sides of the bottom of the protective net 15 are fixedly connected to a limiting ring 16, both ends of the bottom of the protective net 15 are fixedly connected to a limiting ring 2 19, a latch 17 is slidably connected inside the limiting ring 16 and the limiting ring 2 19, an inner hole 18 is provided on the inner wall of the fixed rods 1 on both sides, and the inner hole 18 corresponds to the latch 17, and the latch 17 is inserted into the inner hole 18, and a base 20 is fixedly connected to the bottom of the fixed rods 1 on both sides, and the bottom of the base 20 is provided with anti-slip grooves.

[0029] The motor 13 in the housing 12 is started, and the motor 13 drives the winding drum 14 on the rotating shaft 21 to rotate. When the winding drum 14 rotates, it gradually releases the protective net 15 in the housing 12. The protective net 15 slowly moves downward until it reaches the appropriate position. When the latch 17 at the bottom of the protective net 15 is aligned with the inner hole 18, the latch 17 is inserted into the inner hole 18, and the bottom of the protective net 15 is fixed to the fixed rod 1, thereby protecting the working area. This process makes it convenient and quick to place and store the protective net 15, and improves work efficiency.

[0030] When working, during the construction of a building project, it is necessary to place a protective net outside the construction for protection. At this time, the protective net 15 will be used. The height of the protective net 15 can be adjusted according to the needs of different construction sites so that it can better adapt to different environments. At this time, the sliding rod 7 inside the fixed rod 1 can be directly pulled upwards. When the sliding rod 7 moves, it will drive the rack 8 upward together. Since the teeth of the rack 8 are inclined downward, and one end of the ratchet 6 is curved, the rack 8 drives the ratchet 6 to rotate slightly when moving upward, but the rack 8 cannot move downward. When moving downward, the ratchet 6 will be stuck in the gap between the teeth on both sides, thereby achieving the effect of positioning and fixing the sliding rod 7, which can effectively prevent the sliding rod 7 from moving in the opposite direction, thereby ensuring the stability and reliability of the sliding rod 7. When the sliding rod 7 moves, it is limited in the slide groove 10 by the limiting plate 11 to ensure sliding The rod 7 maintains the same direction when moving. When the sliding rod 7 needs to move downward, it only needs to swing the handle 4 on the fixed block 3 downward to disengage the ratchet 6. Through the cooperation between them, the protective net 15 inside the shell 12 can be quickly adjusted. At this time, the motor 13 inside the shell 12 is started, and the winding drum 14 on the rotating shaft 21 is driven to rotate under the action of the motor 13. When the winding drum 14 rotates, the protective net 15 will gradually be released from the shell 12. At this time, the protective net 15 will slowly move downward. When it moves to the appropriate position, and the pin 17 at the bottom of the protective net 15 corresponds to the position of the inner hole 18, by inserting the pin 17 into the inner hole 18, the bottom of the protective net 15 can be positioned on the fixed rod 1, so as to provide protection. Through the cooperation between them, the effect of quick placement and convenient storage is achieved, thereby improving work efficiency.

[0031] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A municipal engineering construction protection net, characterized by: The invention comprises a pair of fixed rods (1), the front side of the fixed rods (1) is provided with a side hole (2), the outer side wall of the fixed rods (1) is fixedly connected with a pair of fixed blocks (3), the fixed blocks (3) are internally rotatably connected with a rotating rod (5), and the outer side wall of one end of the rotating rod (5) is fixedly connected with a handle (4), and the other end of the rotating rod (5) is fixedly connected with a ratchet (6), and the ratchet (6) corresponds to the side hole (2), and the fixed rod (1) is internally provided with an inner cavity (9), and the inner cavity ( 9) is provided with a sliding rod (7) inside, one side of the sliding rod (7) is fixedly connected with a rack (8), and the rack (8) is meshed with the ratchet (6), the other side of the sliding rod (7) is fixedly connected with a limit plate (11), and a sliding groove (10) is provided inside the fixed rod (1), and the limit plate (11) is slidably connected in the sliding groove (10), the top of the sliding rod (7) is fixedly connected with a shell (12), and a protective net (15) is provided inside the shell (12).

2. A municipal engineering construction protection net according to claim 1, characterized in that: A motor (13) is fixedly connected inside the housing (12); a rotating shaft (21) is fixed to the output end of the motor (13); and the other end of the rotating shaft (21) is rotatably connected inside the housing (12).

3. A municipal engineering construction protection net according to claim 2, characterized in that: The outer wall of the rotating shaft (21) is fixedly connected to a winding drum (14), and one end of the protective net (15) is fixedly connected to the winding drum (14), while the protective net (15) penetrates the outer shell (12) and extends to the bottom of the outer shell (12).

4. A municipal engineering construction protection net according to claim 3, characterized in that: Both sides of the bottom of the protection net (15) are fixedly connected to a limiting ring 1 (16), and both ends of the bottom of the protection net (15) are fixedly connected to a limiting ring 2 (19).

5. A municipal engineering construction protection net according to claim 4, characterized in that: The first limiting ring (16) and the second limiting ring (19) are slidably connected with a latch pin (17), and the inner walls of the fixing rods (1) on both sides are provided with inner holes (18), and the inner holes (18) correspond to the latch pin (17), and the latch pin (17) is inserted into the inner holes (18).

6. A municipal engineering construction protection net according to claim 5, characterized in that: The bottoms of the fixing rods (1) on both sides are fixedly connected to bases (20), and the bottoms of the bases (20) are provided with anti-slip grooves.

Images