Tension reducing type tensioning structure for building protective net

Abstract

The utility model relates to a tension reducing type tensioning structure for a building protective net, which comprises a feeding roller, a lower tensioning roller and a discharging roller which are sequentially wound by the building protective net, the lower tensioning roller is in shaft connection with a tensioning plate located below the feeding roller, and the tensioning plate is in shaft connection with a tensioning frame through a tensioning shaft. The tensioning frame is further provided with a driving device for driving the tensioning plate to rotate up and down, and the lower tensioning roller is located between the feeding roller and the discharging roller and located behind the feeding roller. When the building protective net tensioning device is used, the tensioning plate is driven by the driving device to rotate, so that the lower tensioning roller is driven to rotate up and down, an up-and-down sliding mode is replaced by a rotating mode, the building protective net is tensioned more gently, meanwhile, the moving range of the lower tensioning roller closest to the feeding roller is reduced, and the construction safety is improved. And the pulling force borne by the part, between the guide rotating roller and the feeding roller, of the building protective net is reduced, and the function of protecting the building protective net is achieved.

Description

Technical Field

[0001] The utility model relates to the field of building protection nets, in particular to the technical field of building protection net production, and specifically refers to a tension-reducing tensioning structure for building protection nets. Background Art

[0002] The building protection net is a net used for protection during construction. When processing the building protection net, it is necessary to process the folded edge at the edge, and put the folded geomembrane and georope into the folded edge, and then sew it, and finally punch holes on the folded edge, tension it, and roll it up.

[0003] During the entire production process, the building protection net needs to use a tensioning device to adjust the tension on the building protection net. After the building protection net passes around the guide roller, it passes horizontally around the feed roller of the tensioning device and is tensioned. The traditional tensioning method is to use a tensioning roller that slides along the height direction to slide up and down to tension the building protection. In this method, since the tensioning roller close to the feed roller has a large range of motion, the tension on the part of the building protection net between the guide roller and the feed roller becomes greater, which can easily cause damage to this part of the building protection net. Utility Model Content

[0004] In response to the deficiencies of the prior art, the utility model provides a tensioning structure with reduced tension for building protection nets, which reduces the range of motion of the tensioning roller close to the feed roller, reduces the tension exerted on the portion of the building protection net between the guide roller and the feed roller, and plays a role in protecting the building protection net.

[0005] The utility model is realized through the following technical scheme: a tension-reducing tensioning structure for a building protection net, comprising a feed roller, a lower tensioning roller, and a discharge roller for the building protection net to pass around in sequence; the lower tensioning roller is connected to a tensioning plate below the feed roller; the tensioning plate is connected to a tensioning frame through a tensioning shaft; the tensioning frame is also provided with a driving device for driving the tensioning plate to rotate up and down; the lower tensioning roller is located between the feed roller and the discharge roller and behind the feed roller.

[0006] When the utility model is in use, the driving device drives the rotation of the tensioning plate, thereby driving the lower tensioning roller to rotate up and down, replacing the up and down sliding form with the rotation form, so that the building protection net is more smoothly tensioned, and at the same time reduces the activity range of the lower tensioning roller closest to the feed roller, reduces the tension on the part of the building protection net between the guide roller and the feed roller, and plays a role in protecting the building protection net.

[0007] Preferably, the tensioning plate is axially connected to several lower tensioning rollers arranged along the conveying direction of the building protection net, and an upper tensioning roller located above the lower tensioning roller and axially connected to the tensioning frame is provided between two adjacent lower tensioning rollers. The building protection net passes around the lower tensioning rollers and the upper tensioning rollers in sequence along the conveying direction, and the tensioning shaft is located in front of the lower tensioning roller.

[0008] This preferred solution facilitates increasing the tensioning length of the building protection net by arranging the lower tensioning roller and the upper tensioning roller.

[0009] Preferably, there are two upper tensioning rollers and three lower tensioning rollers.

[0010] Preferably, two tensioning plates are provided, and the two tensioning plates are arranged along the axial direction of the lower tensioning roller. This preferred solution plays a role of supporting the lower tensioning roller through the provision of two tensioning plates.

[0011] Preferably, the driving device includes a cylinder arranged corresponding to the tensioning plate, one end of the cylinder is hinged to the tensioning frame, and the other end is hinged to the tensioning plate.

[0012] This preferred solution facilitates adjustment of the rotation angle of the tensioning plate by providing the cylinder.

[0013] As an advantage, the distances between two adjacent lower tensioning rollers are the same. This preferred solution facilitates the positioning and installation of the lower tensioning roller on the tensioning plate.

[0014] The beneficial effects of the utility model are as follows: the rotation of the tensioning plate is driven by the driving device, thereby driving the lower tensioning roller to rotate up and down, replacing the up and down sliding form with the rotation form, so that the building protection net is tensioned more smoothly, and at the same time reduces the activity range of the lower tensioning roller closest to the feed roller, reduces the tension on the part of the building protection net between the guide roller and the feed roller, and plays a role in protecting the building protection net; through the arrangement of the lower tensioning roller and the upper tensioning roller, it is convenient to increase the tensioning length of the building protection net. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] As shown in the figure:

[0017] 2. Tensioning frame, 4. Guide roller, 21. Feed roller, 22. Discharge roller, 23. Upper tensioning roller, 24. Lower tensioning roller, 25. Tensioning plate, 26. Tensioning shaft, 27. Driving device. DETAILED DESCRIPTION

[0018] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0019] Refer to the attached Figure 1 The utility model provides a tension-reducing tensioning structure for a building protection net, including a tensioning frame 2 located behind a guide roller 4, a feed roller 21 and a discharge roller 22 being axially connected to the tensioning frame 2, and a tensioning plate 25 located below the feed roller 21 being axially connected to the tensioning frame 2 through a tensioning shaft 26. Two tensioning plates 25 are provided, and the two tensioning plates 25 are arranged along the axial direction of the feed roller 21.

[0020] The two tensioning plates 25 are connected to the upper shaft with three lower tensioning rollers 24 arranged from front to back along the conveying direction of the building protection net. The tensioning shaft 26 is located in front of the lower tensioning rollers 24. The distance between two adjacent lower tensioning rollers 24 is the same.

[0021] An upper tensioning roller 23 is provided between two adjacent lower tensioning rollers 24, which is located above the lower tensioning rollers 24 and is axially connected to the tensioning frame 2. The building protection net passes around the lower tensioning rollers 24 and the upper tensioning rollers 23 in sequence along the conveying direction. The feed roller 21 is located in front of the lower tensioning roller 24. Therefore, among the three lower tensioning rollers 24, the lower tensioning roller 24 located at the front is closest to the feed roller 21 and the tensioning shaft 26.

[0022] The tensioning frame 2 is also provided with a driving device 27 for driving the tensioning plate 25 to rotate up and down. The driving device 27 includes a cylinder arranged corresponding to the tensioning plate 25. One end of the cylinder is hinged to the tensioning frame 2, and the other end is hinged to the tensioning plate 25.

[0023] When the utility model is in use, the driving device 27 drives the rotation of the tensioning plate 25, thereby driving the lower tensioning roller 24 to rotate up and down, replacing the up and down sliding form with rotation, so that the building protection net is tensioned more smoothly, and at the same time reduces the range of movement of the lower tensioning roller 24 closest to the feed roller 21, reduces the tension on the part of the building protection net between the guide roller 4 and the feed roller 21, and plays a role in protecting the building protection net; through the arrangement of the lower tensioning roller 24 and the upper tensioning roller 23, it is convenient to increase the tensioning length of the building protection net.

[0024] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A tension-reducing tensioning structure for a building protection net, characterized by: The invention comprises a feed roller (21), a lower tensioning roller (24), and a discharge roller (22) for the building protection net to pass through in sequence. The lower tensioning roller (24) is axially connected to a tensioning plate (25) located below the feed roller (21). The tensioning plate (25) is axially connected to a tensioning frame (2) through a tensioning shaft (26). The tensioning frame (2) is also provided with a driving device (27) for driving the tensioning plate (25) to rotate up and down. The lower tensioning roller (24) is located between the feed roller (21) and the discharge roller (22) and is located behind the feed roller (21).

2. The tension-reducing tensioning structure for a building protection net according to claim 1, characterized in that: The tensioning plate (25) is connected to a plurality of lower tensioning rollers (24) arranged along the conveying direction of the building protection net on an upper axis. An upper tensioning roller (23) located above the lower tensioning rollers (24) and connected to the tensioning frame (2) is provided between two adjacent lower tensioning rollers (24). The building protection net passes around the lower tensioning rollers (24) and the upper tensioning rollers (23) in sequence along the conveying direction. The tensioning shaft (26) is located in front of the lower tensioning rollers (24).

3. The tension-reducing tension structure for a building protection net according to claim 2, characterized in that: There are two upper tensioning rollers (23) and three lower tensioning rollers (24).

4. The tension-reducing tensioning structure for a building protection net according to claim 3, characterized in that: Two tensioning plates (25) are provided, and the two tensioning plates (25) are arranged along the axial direction of the lower tensioning roller (24).

5. The tension-reducing tensioning structure for a building protection net according to claim 1, characterized in that: The driving device (27) comprises a cylinder arranged corresponding to the tensioning plate (25), one end of the cylinder is hinged to the tensioning frame (2), and the other end is hinged to the tensioning plate (25).

6. The tension-reducing tensioning structure for a building protection net according to claim 2, characterized in that: The distance between two adjacent lower tensioning rollers (24) is the same.

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