Fine-mesh screen device for building construction
By designing a dense mesh device with a retractable cross bar and a rotating sleeve, the problems of poor adaptability and cumbersome installation and storage of traditional dense mesh devices are solved, and flexible adaptation to the construction needs of different building structures is achieved, thereby improving construction efficiency and safety.
Patent Information
- Application Number
- CN202422644959.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Traditional dense mesh devices have fixed sizes and are difficult to adapt to different building structures. They are also cumbersome to install and store, affecting construction efficiency.
A retractable crossbar and rotating sleeve structure is designed, and the dense mesh can be unfolded and stored by operating the crank. Combined with the combination of fixed cards and supports, it can adapt to different building sizes, and the length can be adjusted through the telescopic rod to adapt to different scenarios.
The adaptability and ease of operation of the dense mesh device are improved, the risk of accidental injury during construction is reduced, and construction efficiency and space utilization are improved.
Smart Images

Figure CN223317585U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a building construction protection device, in particular to a close-mesh net device for building construction. Background Art
[0002] Safety and protection are crucial during construction. Preventing materials and tools from falling, and protecting workers from accidental injury, are crucial issues for construction companies, especially during the construction of high-rise buildings or complex structures. Fine-mesh netting, as an effective safety device, is widely used on construction sites.
[0003] Traditional fine-mesh netting systems are typically installed around the perimeter of a building using fixed brackets to form a closed protective net. However, these traditional systems present several challenges. First, their fixed dimensions make them difficult to adapt to varying building sizes, resulting in limitations in installation and use. Second, the folding and unfolding of traditional fine-mesh netting is often cumbersome, requiring significant labor and time, reducing construction efficiency. Utility Model Content
[0004] The purpose of the utility model is to provide a close-mesh net device for construction, so as to solve the problems of poor adaptability and complicated installation and storage of traditional close-mesh nets.
[0005] The utility model is implemented as follows: a close-mesh net device for construction, the structure of which includes two pairs of upper supports and two pairs of lower supports, fixed rods and connecting rods arranged between the upper supports and the lower supports, fixed clips, two cross rods respectively arranged between the two upper supports and between the two lower supports, and a close-mesh net connected between the connecting rods and the cross rods, the fixed clips are used to fix the fixed rods on the building wall or column; a hanging ring is provided on the cross rod, and the hanging ring is used to connect with the close-mesh net.
[0006] Furthermore, the connecting rod includes an internal core rod and a rotating sleeve sleeved on the core rod.
[0007] Furthermore, a first bevel gear is provided on the rotating sleeve, a second bevel gear matched with the first bevel gear is provided on the lower support, and a crank is provided on the second bevel gear.
[0008] Furthermore, the cross bar includes a telescopic outer bar and a telescopic inner bar inserted into the telescopic outer bar.
[0009] Furthermore, a lower slide groove and an upper slide groove are provided on the telescopic outer rod, the telescopic inner rod is inserted into the lower slide groove of the telescopic outer rod, and an outer slider is provided in the upper slide groove; an inner slide groove is provided on the telescopic inner rod, and an inner slider is provided in the inner slide groove.
[0010] Furthermore, the inner slider and the outer slider are both T-shaped sliders, each including a transverse portion cooperating with a corresponding slide groove and a vertical portion connected to the lifting ring.
[0011] Furthermore, the slot width of the lower slide groove is the same as the slot width of the upper slide groove, and the slot width of the inner slide groove is smaller than the slot width of the lower slide groove.
[0012] The utility model ensures the stability of the entire dense mesh device through the combined design of the upper support, the lower support, the fixing rod, the connecting rod and the cross rod, and the fixing clip fixes the fixing rod to the building wall or column. The setting of the dense mesh effectively prevents the falling of debris during the construction process, provides a safer working environment for construction workers, and reduces the risk of accidental injury.
[0013] The connecting rod of the utility model adopts the design of a core rod and a rotating sleeve. The rotating sleeve can be driven to rotate by turning the crank, so that the dense mesh can be stored and unfolded, and the operation is simple and quick.
[0014] The crossbar of the utility model is a telescopic rod, and the length of the telescopic rod can be adjusted according to the requirements of buildings of different sizes, so that the dense mesh device can be widely used in various construction scenes, thereby improving flexibility and adaptability.
[0015] The utility model can be wound around the rotating sleeve by turning the crank, and when the dense mesh net is not needed, the dense mesh net can be rolled up and stored, which saves space and improves space utilization; the telescopic rod also allows the device to be retracted to a smaller volume when not in use, which is convenient for storage and transportation.
[0016] The dense mesh of the utility model not only improves the cleanliness and aesthetics of the construction site, but also helps to reduce noise and dust pollution during the construction process. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural diagram of the present utility model.
[0018] Figure 2 It is a structural diagram of the crossbar and slider.
[0019] Figure 3 It is a structural diagram of the crossbar and the support.
[0020] In the figure: 1, upper support, 2, lower support, 3, fixed rod, 4, connecting rod, 5, cross bar, 6, dense mesh, 7, fixing card, 8, lifting ring, 41, core rod, 42, rotating sleeve, 43, first bevel gear, 44, second bevel gear, 45, crank handle, 51, telescopic outer rod, 52, telescopic inner rod, 53, inner slider, 54, outer slider, 55, lower slide, 56, upper slide, 57, inner slide. DETAILED DESCRIPTION
[0021] As shown in Figure 1, the present invention comprises two pairs of upper supports 1 and two pairs of lower supports 2, fixed rods 3 and connecting rods 4 disposed between each pair of upper supports 1 and lower supports 2, fixed clips 7, two crossbars 5 disposed between the two upper supports 1 and the two lower supports 2, respectively, and a fine-mesh net 6 connected between the connecting rods 4 and crossbars 5. The two pairs of upper supports 1 and the two pairs of lower supports 2 are disposed near the left and right ends of the building, above and below it, respectively. Fixed clips 7 secure the fixed rods 3 to the building's walls or columns, forming a stable support frame and ensuring overall stability.
[0022] A lifting ring 8 is provided on the crossbar 5, which is connected to the connection hole of the dense mesh 6 through the lifting ring 8. Connection holes are provided on all four sides of the dense mesh 6, and a connecting plate is provided on the inner side of the connecting rod 4. Through holes corresponding to the connection holes of the dense mesh 6 are opened on the connecting plate, and bolts or fixing ropes are passed through the connection holes of the dense mesh and the through holes of the connecting plate.
[0023] The connecting rod 4 comprises a core rod 41 and a rotating sleeve 42 mounted on the core rod 41. The upper end of the core rod 41 is connected to the upper support 1, while the lower end of the core rod 41 is connected to the lower support 2. A first bevel gear 43 is mounted on the rotating sleeve 42, and a second bevel gear 44 is mounted on the lower support 2 to mate with the first bevel gear 43. A crank 45 is mounted on the second bevel gear 44, and turning the crank 45 rotates the rotating sleeve 42. A connecting plate is mounted on the rotating sleeve 42, and turning the crank 45 rotates the rotating sleeve, wrapping the fine mesh 6 around the rotating sleeve 42 and storing the fine mesh 6.
[0024] The length of the connecting plate is less than the length of the rotating sleeve 42, and the first bevel gear 43 in the present embodiment is below the connecting plate. Before the close-mesh net 6 is wound, the connecting rod 4 and the close-mesh net 6 without the first bevel gear 43 are loosened.
[0025] like Figure 3 As shown, the positions of the fixing rod 3 and the connecting rod 4 on the lower support 2 and the upper support 1 are staggered and not on a straight line to avoid interference with the fixing rod 3 when the second bevel gear 44 is operated.
[0026] like Figure 2As shown, the crossbar 5 is a telescopic rod, comprising a telescopic outer rod 51 and a telescopic inner rod 52 inserted into the telescopic outer rod 51. The telescopic inner rod 52 slides within the telescopic outer rod 51 to adjust its length, making it suitable for buildings of different sizes. In this embodiment, there are two telescopic outer rods 51 and one telescopic inner rod 52, but one telescopic outer rod 51 and one telescopic inner rod 52 are also possible, depending on actual needs.
[0027] The telescopic outer rod 51 is provided with a lower groove 55 and an upper groove 56. The telescopic inner rod 51 is inserted into the lower groove 55 of the telescopic outer rod 51, and the outer slider 54 is disposed in the upper groove 56. The telescopic inner rod 52 is provided with an inner groove 57, within which the inner slider 53 is disposed. Both the inner slider 53 and the outer slider 54 have through-holes for connecting to the lifting ring 8. The inner slider 53 and the outer slider 54 are connected to the fine mesh 6 via the lifting ring 8. The inner slider 53 and the outer slider 54 have similar structures, both being T-shaped sliders. Each slider 53 and the outer slider 54 includes a transverse portion that engages with the corresponding groove and a vertical portion that engages with the lifting ring 8. The vertical portion of the inner slider 53 is longer than that of the outer slider 54, so that the through-holes of the inner slider 53 and the outer slider 54 are located at the same height.
[0028] The upper slide groove 56 and the lower slide groove 55 are both opened in the middle of the upper end of the telescopic outer rod 51, and the inner slide groove 57 is opened in the middle of the upper end of the telescopic inner rod 52. The notch width of the upper slide groove 56 of the telescopic outer rod 51 and the notch width of the lower slide groove 55 are the same, and the notch width of the inner slide groove 57 of the telescopic inner rod 52 is smaller than the notch width of the upper slide groove 56 of the telescopic outer rod 51. The width of the vertical portion of the inner slider 53 is smaller than the width of the vertical portion of the outer slider 54. When the telescopic inner rod 52 is retracted into the telescopic outer rod 51 or the telescopic inner rod 52 is not fully extended from the telescopic outer rod 51, both the inner slider 53 and the outer slider 54 can slide, ensuring the stability and smoothness of the sliding process.
Claims
1. A dense mesh device for construction, characterized in that: The invention comprises two pairs of upper supports and two pairs of lower supports, a fixing rod and a connecting rod arranged between the upper supports and the lower supports, a fixing clamp, two cross rods respectively arranged between the two upper supports and the two lower supports, and a dense mesh connected between the connecting rods and the cross rods, wherein the fixing clamp is used to fix the fixing rods on the building wall or column; a hanging ring is provided on the cross rod, and the hanging ring is used to be connected to the dense mesh; the connecting rod comprises an internal core rod and a rotating sleeve sleeve mounted on the core rod.
2. The fine mesh device for construction according to claim 1, characterized in that: A first bevel gear is provided on the rotating sleeve, a second bevel gear matched with the first bevel gear is provided on the lower support, and a crank handle is provided on the second bevel gear.
3. The fine mesh device for construction according to claim 1, characterized in that: The cross bar comprises a telescopic outer bar and a telescopic inner bar passing through the telescopic outer bar.
4. The fine mesh device for construction according to claim 3, characterized in that: A lower slide groove and an upper slide groove are provided on the telescopic outer rod, the telescopic inner rod is inserted into the lower slide groove of the telescopic outer rod, and an outer slider is provided in the upper slide groove; an inner slide groove is provided on the telescopic inner rod, and an inner slider is provided in the inner slide groove.
5. The fine mesh device for construction according to claim 4, characterized in that: The inner slider and the outer slider are both T-shaped sliders, and each includes a transverse portion that cooperates with a corresponding sliding groove and a vertical portion that is connected to the lifting ring.
6. The fine mesh device for construction according to claim 4, characterized in that: The slot width of the lower slide groove is the same as the slot width of the upper slide groove, and the slot width of the inner slide groove is smaller than the slot width of the lower slide groove.