Adjustable protective net

Abstract

The utility model relates to the technical field of protective nets, and aims to provide an adjustable protective net which comprises a protective net body, an extension net is slidably connected to the inner side of the protective net body, a fixed box is fixedly connected to one side of the top of the extension net, a threaded rod is fixedly connected to one side of the fixed box through a bearing, and an inner threaded sleeve is in threaded connection to the outer wall of the threaded rod. The side, close to the center of the fixing box, of the threaded rod is fixedly connected with a driven bevel gear, the top of the fixing box is rotationally connected with a rotating shaft, the surface of the side, located outside the fixing box, of the rotating shaft is fixedly sleeved with a fixing disc, and evenly-distributed threaded holes are formed in the outer annular face of the fixing disc. The width of the protective net can be adjusted according to the area width needing to be protected, and the practicability of protection is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of protective net, especially a kind of adjustable protective net. BACKGROUND

[0002] Climbing frame is also called lifting frame, and it can be divided into hydraulic type, electric type and manpower hand-pulled type according to its power source. It is a new type of scaffold system developed in recent years, and it is mainly applied to high-rise shear wall type building. It can climb up or down along the building. Protective net is arranged outside the climbing frame to prevent tools and materials from falling due to careless operation during construction, which can cause harm to people below the frame. The existing climbing frame protective net cannot adjust the width of the protective net according to the width of the area to be protected during use, which reduces the practicality of the protective net and has certain limitations. UTILITY MODEL CONTENT

[0003] The utility model aims to provide an adjustable protective net to solve the problems in the background art and facilitate popularization.

[0004] In order to achieve the above utility model purposes, the utility model adopts the following technical scheme:

[0005] An adjustable protective net comprises a protective net body, an extension net is slidably connected to the inner side of the protective net body, a fixed box is fixedly connected to one side of the top of the extension net, a threaded rod is fixedly connected to one side of the center of the fixed box through a bearing, an internal thread sleeve is threadedly connected to the outer wall of the threaded rod, a driven bevel gear is fixedly connected to one side of the threaded rod close to the center of the fixed box, a rotating shaft is rotatably connected to the top of the fixed box, a fixed disc is fixedly sleeved to the surface of one side of the rotating shaft outside the fixed box, a plurality of screw holes are evenly arranged on the outer annular surface of the fixed disc, a connecting plate is fixedly connected to one side of the rotating shaft at the top of the fixed box, a bolt is threadedly connected to the connecting plate, a driving bevel gear is fixedly connected to the bottom of the rotating shaft and penetrates the top of the inner wall of the fixed box, the driving bevel gear is in transmission meshing connection with the driven bevel gear, a fixed plate is fixedly connected to one side of the bottom of the extension net, a limiting rod is fixedly connected to one side of the inner wall of the fixed plate, and a sleeve is slidably connected to the limiting rod.

[0006] Further, the bottom of the internal thread sleeve is fixedly connected to the top of the protective net body.

[0007] Further, the top of the rotating shaft is fixedly connected with a steering handle.

[0008] Further, the bolt is matched with the screw hole.

[0009] Further, the top of the sleeve is fixedly connected to the bottom of the protective net body.

[0010] The utility model discloses an advantageous effect is:

[0011] The utility model discloses a kind of adjusting protective net, according to the need of on-site construction, by rotating handle, further drive shaft rotates, further by driving bevel gear drive meshing driven bevel gear rotation, further drive threaded rod rotation, further drive extension net to the direction of moving away or close to protective net body, it can be adjusted to the size required, simultaneously, bolt and the threaded hole screw thread connection on fixed disc, further limit shaft, ensure the stability when fixed, realize the width of the area of protection according to need to adjust the width of protective net, improve the practicality of protection. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a kind of adjusting protective net overall structure schematic diagram of the utility model;

[0013] Fig. 2 It is a kind of adjusting protective net fixed box sectional view of the utility model;

[0014] Fig. 3 It is a kind of adjusting protective net A place enlarged view of the utility model;

[0015] Correspondence table of reference numeral:

[0016] 1, protective net body;2, extension net;3, fixed box;4, threaded rod;5, internal thread sleeve;6, driven bevel gear;7, shaft;8, fixed disc;9, threaded hole;10, connecting plate;11, bolt;12, driving bevel gear;13, fixed plate;14, limit rod;15, sleeve;16, handle. DETAILED DESCRIPTION

[0017] The specific embodiment of the utility model will be further illustrated below in conjunction with the drawings. Same parts are indicated with same reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.

[0018] In order to make the content of the utility model more easily understood clearly, the technical solutions in the utility model embodiments will be clearly and completely described below in conjunction with the drawings in the utility model embodiments. Same parts are indicated with same reference numerals.

[0019] By Figs. 1 to 3As shown, an adjustable protective screen includes a protective screen body 1, an extension screen 2 is slidably connected inside the protective screen body 1, a fixed box 3 is fixedly connected to one side of the top of the extension screen 2, a threaded rod 4 is fixedly connected to one side of the fixed box 3 through a bearing, an internally threaded sleeve 5 is threadedly connected to the outer wall of the threaded rod 4, the bottom of the internally threaded sleeve 5 is fixedly connected to the top of the protective screen body 1, a driven bevel gear 6 is fixedly connected to one side of the threaded rod 4 close to the center of the fixed box 3, a rotating shaft 7 is rotatably connected to the top of the fixed box 3, a fixed disc 8 is fixedly sleeved on the surface of one side of the fixed box 3, a plurality of evenly distributed threaded holes 9 are formed in the outer annular surface of the fixed disc 8, a connecting plate 10 is fixedly connected to one side of the rotating shaft 7 at the top of the fixed box 3, a bolt 11 is threadedly connected to the connecting plate 10, a driving bevel gear 12 is fixedly connected to the bottom of the rotating shaft 7 and penetrates through the top of the inner wall of the fixed box 3, the driving bevel gear 12 is in driving engagement with the driven bevel gear 6, by rotating a handle 16, the rotating shaft 7 is driven to rotate, the driven bevel gear 6 engaged with the driving bevel gear 12 is driven to rotate by the driving bevel gear 12, the threaded rod 4 is driven to rotate, the extension screen 2 is driven to move away from or close to the protective screen body 1 by the internally threaded sleeve 5 threadedly connected with the threaded rod 4, the size can be adjusted as required, at the same time, the bolt 11 is threadedly connected with the threaded holes 9 on the fixed disc 8, the rotating shaft 7 is further limited to ensure the stability during fixing, the width of the protective screen is adjusted according to the required width of the protected area, and the practicability of protection is improved.

[0020] A fixed plate 13 is fixedly connected to one side of the bottom of the extension screen 2, a limiting rod 14 is fixedly connected to one side of the inner wall of the fixed plate 13, a sleeve 15 is slidably connected to the limiting rod 14, the top of the sleeve 15 is fixedly connected to the bottom of the protective screen body 1, the stability of the extension screen 2 during movement is ensured by the sliding connection between the sleeve 15 and the limiting rod 14.

[0021] A handle 16 is fixedly connected to the top of the rotating shaft 7, the handle 16 is arranged to facilitate the rotation of the rotating shaft 7.

[0022] The bolt 11 is matched with the threaded hole 9 to fix the position of the rotating shaft 7.

[0023] The above is only a preferred embodiment of the present utility model patent, and does not limit the present utility model patent, any modification, equivalent replacement and improvement made within the spirit and principle of the present utility model patent shall be included in the protection scope of the present utility model patent.

Claims

1. A regulated protective screen comprising a protective screen body (1), characterized in that, The extension net (2) is slidably connected to the inside of the protective net body (1), one side of the top of the extension net (2) is fixedly connected with a fixed box (3), one side of the fixed box (3) is fixedly connected with a threaded rod (4) through a bearing, a female threaded sleeve (5) is threadedly connected to the outer wall of the threaded rod (4), a driven bevel gear (6) is fixedly connected to the side of the threaded rod (4) close to the center of the fixed box (3), a rotating shaft (7) is rotatably connected to the top of the fixed box (3), a fixed disc (8) is fixedly sleeved on the side surface of the rotating shaft (7) outside the fixed box (3), a plurality of thread holes (9) are uniformly arranged on the outer annular surface of the fixed disc (8), a connecting plate (10) is fixedly connected to the top of the fixed box (3) and located on one side of the rotating shaft (7), bolts (11) are threadedly connected to the connecting plate (10), a driving bevel gear (12) is fixedly connected to the bottom of the rotating shaft (7) and penetrates the top of the inner wall of the fixed box (3), the driving bevel gear (12) is in driving engagement with the driven bevel gear (6), a fixed plate (13) is fixedly connected to one side of the bottom of the extension net (2), a limiting rod (14) is fixedly connected to one side of the inner wall of the fixed plate (13), and a sleeve (15) is slidably connected to the limiting rod (14).

2. An adjustable protective screen according to claim 1, wherein, The bottom of the female threaded sleeve (5) is fixedly connected with the top of the protective net body (1).

3. The adjustable protective screen of claim 1, wherein, The top of the rotating shaft (7) is fixedly connected with a handle (16).

4. The adjustable protective screen of claim 1, wherein, The bolt (11) is matched with the thread hole (9).

5. The adjustable protective screen of claim 1, wherein, The top of the sleeve (15) is fixedly connected with the bottom of the protective net body (1).

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