Adjustable truss fixing piece

Abstract

The utility model belongs to the technical field of truss fixing parts, and particularly relates to an adjustable truss fixing part which comprises a main rod, through holes are formed in the middles of the front side wall and the rear side wall of the main rod in a penetrating mode, a sliding block is installed in an inner cavity of the main rod in a sliding mode, and a first fastening screw is installed at the top end of the left side of the main rod in a penetrating mode. An auxiliary rod is rotatably installed in the first fastening screw, a sliding rail is arranged on the bottom face of an inner cavity of the main rod, the sliding block is slidably installed on the sliding rail, a threaded hole and an adjusting groove are formed in the middle of the bottom face of the inner cavity of the main rod, a second fastening screw is slidably installed in an inner cavity of a through hole, and a threaded pad is installed at the bottom of the second fastening screw in a threaded mode. The threaded pad is installed on the side wall of an inner cavity of the sliding block, a first rotating shaft is installed on the side wall of an inner cavity of the auxiliary rod in a penetrating mode, a supporting arm is rotatably installed on the first rotating shaft, the other end of the supporting arm is rotatably installed on the side wall of the sliding block, the main rod and the auxiliary rod are both made of aluminum alloy materials, and the device is simple in structure and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of truss fasteners, in particular to an adjustable truss fastener. Background Technique

[0002] A truss is a structure formed by connecting rods hinged to each other at both ends. The truss is composed of straight rods and generally has a planar or spatial structure with triangular units. The truss rods mainly bear axial tension or pressure, so that the strength of the material can be fully utilized. When the span is large, it can save materials compared with a solid web beam, reduce self-weight and increase stiffness.

[0003] At present, the fasteners on the market are all of a fixed shape and fixed length. One specification cannot change its shape and length, and they are not convenient to carry and cannot be folded. For the connection of the folding angle, fasteners of specific specifications are required, and various types of fasteners need to be carried when going out, so the applicability is poor. For this reason, we propose an adjustable truss fastener. Content of the Utility Model

[0004] The purpose of the utility model is to provide an adjustable truss fastener to solve the problems of low utilization rate of various types of fasteners that need to be carried, inconvenient carrying and inability to fold as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an adjustable truss fastener, including a main rod, through holes are penetrated and opened in the middle of the front and rear side walls of the main rod, a slider is slidably installed in the inner cavity of the main rod, a first fastening screw is penetrated and installed at the left top end of the main rod, a secondary rod is rotatably installed in the first fastening screw, a slide rail is opened on the bottom surface of the inner cavity of the main rod, the slider is slidably installed on the slide rail, a threaded hole and an adjustment groove are opened in the middle of the bottom surface of the inner cavity of the main rod, a second fastening screw is slidably installed in the inner cavity of the through hole, a threaded pad is threadedly installed at the bottom of the second fastening screw, and the threaded pad is installed on the side wall of the inner cavity of the slider. A first rotating shaft is penetrated and installed on the side wall of the inner cavity of the secondary rod, a support arm is rotatably installed on the first rotating shaft, and the other end of the support arm is rotatably installed on the side wall of the slider.

[0006] Preferably, the width of the inner cavity of the main rod is greater than the overall width of the secondary rod, and both the main rod and the secondary rod are made of aluminum alloy.

[0007] Preferably, the bottom end of the first fastening screw is installed with a threaded pad of the same kind, and the first fastening screw penetrates through the side walls of the main rod and the secondary rod and is connected to the threaded pad.

[0008] Preferably, the bottom surface of the inner cavity of the secondary rod and the bottom surface of the main rod are provided with the same threaded holes and adjustment grooves.

[0009] Preferably, the first fastening screw and the second fastening screw are plum blossom hand-tightening screws, and a second rotating shaft is installed between the support arm and the slider.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1) A device of one specification cannot change its shape and length, and is inconvenient to carry and cannot be folded. This device uses a main rod and a sub-rod, and the inner cavity width of the main rod is greater than the overall width of the sub-rod. When not in use, the sub-rod can be stored in the inner cavity of the main rod, so that the overall length is shortened for convenient carrying. The structure of the device is simple and easy to use.

[0012] 2) A first fastening screw is installed between the main rod and the sub-rod of the device. After adjusting the angle between the main rod and the sub-rod and locking the first fastening screw, it can be adjusted into a fastener at any required angle, with wider applicability. A slider is installed in the inner cavity of the main rod, and a support arm is installed between the middle part of the sub-rod and the slider, and the support arm can increase the strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic installation diagram of the support arm of the present utility model;

[0015] Figure 3 is a schematic structural diagram of the inner cavity of the main rod of the present utility model;

[0016] Figure 4 is a schematic diagram of the slider of the present utility model;

[0017] Figure 5 is a schematic diagram of the fastening screw and the thread pad of the present utility model.

[0018] In the figure: 1, main rod; 2, sub-rod; 3, first fastening screw; 4, through hole; 5, second fastening screw; 6, slider; 7, first rotating shaft; 8, support arm; 9, slide rail; 10, adjustment groove; 11, threaded hole; 12, second rotating shaft; 13, thread pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0021] Please refer to Figures 1-5 , the present utility model provides a technical solution: an adjustable truss fixing member, including a main rod 1. Through holes 4 are penetrated in the middle of the front and rear side walls of the main rod 1. The through holes 4 facilitate the front and rear movement of the second fastening screw 5. A slider 6 is slidably installed in the inner cavity of the main rod 1. A first fastening screw 3 is penetrated and installed at the top left of the main rod 1. A secondary rod 2 is rotatably installed in the first fastening screw 3. After adjusting the angle between the main rod 1 and the secondary rod 2 and locking the first fastening screw 3, a fastening member at any required angle can be adjusted. A slide rail 9 is provided on the bottom surface of the inner cavity of the main rod 1. The slider 6 is slidably installed on the slide rail 9. A threaded hole 11 and an adjustment groove 10 are provided in the middle of the bottom surface of the inner cavity of the main rod 1. The threaded hole 11 is used for the insertion of a screw to connect to the truss, and the adjustment groove 10 is to increase the wider range of use. When there is no suitable position for the threaded hole 11, the screw can be inserted through the adjustment groove 10 to connect to the truss. A second fastening screw 5 is slidably installed in the inner cavity of the through hole 4. A threaded pad 13 is threadedly installed at the bottom of the second fastening screw 5. The threaded pad 13 is installed on the side wall of the inner cavity of the slider 6. After adjusting to the appropriate position, the second fastening screw 5 fixes the position of the slider 6. A first rotating shaft 7 is penetrated and installed on the side wall of the inner cavity of the secondary rod 2. A support arm 8 is rotatably installed on the first rotating shaft 7. The other end of the support arm 8 is rotatably installed on the side wall of the slider 6. As the angle between the main rod 1 and the secondary rod 2 opens and closes, the slider 6 slides back and forth to the appropriate position, and the second fastening screw 5 is locked to fix the position of the slider 6. The support arm 8 increases the stability and supportability.

[0022] Among them, the inner cavity width of the main rod 1 is greater than the overall width of the auxiliary rod 2. When not in use, the auxiliary rod 2 can be stored in the inner cavity of the main rod 1, so that the overall length is shortened and it is convenient to carry. Both the main rod 1 and the auxiliary rod 2 are made of aluminum alloy and have sufficient hardness. A threaded pad 13 of the same type is installed at the bottom end of the first fastening screw 3. The first fastening screw 3 passes through the side walls of the main rod 1 and the auxiliary rod 2 and is connected to the threaded pad 13. When the first fastening screw 3 is tightened with the threaded pad 13, the positions of the main rod 1 and the auxiliary rod 2 can be fixed. Threaded holes 11 and adjustment slots 10 are provided on the bottom surface of the inner cavity of the auxiliary rod 2 and the bottom surface of the main rod 1, which are convenient for the connection between trusses. The first fastening screw 3 and the second fastening screw 5 are plum blossom hand-tightening screws, which are convenient for tightening and opening. A second rotating shaft 12 is installed between the support arm 8 and the slider 6. When storing, the support arm 8 can rotate and be stored parallel to the main rod 1 without occupying space.

[0023] Working principle: A device with a fixed specification that cannot change its shape and length and is not convenient to carry and cannot be folded. This device uses a main rod 1 and an auxiliary rod 2, and the inner cavity width of the main rod 1 is greater than the overall width of the auxiliary rod 2. When not in use, the auxiliary rod 2 can be stored in the inner cavity of the main rod 1, so that the overall length is shortened and it is convenient to carry. The first fastening screw 3 is installed through the top end on the left side of the main rod 1, and the auxiliary rod 2 is rotatably installed inside the first fastening screw 3. After adjusting the angle between the main rod 1 and the auxiliary rod 2 and tightening the first fastening screw 3, it can be adjusted into a fastener at any required angle. A threaded hole 11 and an adjustment slot 10 are provided in the middle of the bottom surface of the inner cavity of the main rod 1. The threaded hole 11 is used for the insertion of screws to connect the truss, and the adjustment slot 10 is for a wider range of use. When there is no suitable position for the threaded hole 11, the screw can be inserted through the adjustment slot 10 to connect with the truss. A support arm 8 is rotatably installed on the first rotating shaft 7, and the other end of the support arm 8 is rotatably installed on the side wall of the slider 6. As the angle between the main rod 1 and the auxiliary rod 2 opens and closes, the slider 6 slides back and forth to a suitable position, and the second fastening screw 5 is tightened to fix the position of the slider 6. The support arm 8 increases the stability and support. A second rotating shaft 12 is installed between the support arm 8 and the slider 6. When storing, the support arm 8 can rotate and be stored parallel to the main rod 1 without occupying space.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0025] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable truss fixing member, comprising a main rod (1), characterized in that: A through hole (4) is penetrated and provided in the middle of the front and rear side walls of the main rod (1). A slider (6) is slidably installed in the inner cavity of the main rod (1). A first fastening screw (3) is penetrated and installed at the left top end of the main rod (1). A secondary rod (2) is rotatably installed in the first fastening screw (3). A slide rail (9) is provided on the bottom surface of the inner cavity of the main rod (1). The slider (6) is slidably installed on the slide rail (9). A threaded hole (11) and an adjustment groove (10) are provided in the middle of the bottom surface of the inner cavity of the main rod (1). A second fastening screw (5) is slidably installed in the inner cavity of the through hole (4). A threaded pad (13) is threadedly installed at the bottom of the second fastening screw (5). The threaded pad (13) is installed on the side wall of the inner cavity of the slider (6). A first rotating shaft (7) is penetrated and installed on the side wall of the inner cavity of the secondary rod (2). A support arm (8) is rotatably installed on the first rotating shaft (7). The other end of the support arm (8) is rotatably installed on the side wall of the slider (6).

2. The adjustable truss fixing member according to claim 1, wherein: The width of the inner cavity of the main rod (1) is greater than the overall width of the secondary rod (2). Both the main rod (1) and the secondary rod (2) are made of aluminum alloy material.

3. An adjustable truss fixing member according to claim 1, characterized in that: A threaded pad (13) of the same type is installed at the bottom end of the first fastening screw (3). The first fastening screw (3) penetrates the side walls of the main rod (1) and the secondary rod (2) and is connected to the threaded pad (13).

4. An adjustable truss fixing member according to claim 1, characterized in that: The same threaded hole (11) and adjustment groove (10) are provided on the bottom surface of the inner cavity of the secondary rod (2) and the bottom surface of the main rod (1).

5. An adjustable truss fixing member according to claim 1, characterized in that: The first fastening screw (3) and the second fastening screw (5) are plum blossom hand-tightening screws. A second rotating shaft (12) is installed between the support arm (8) and the slider (6).

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