Pluggable shaft device of truss arm

Abstract

The utility model relates to the technical field of truss arms, and discloses a shaft inserting and pulling device of a truss arm, which comprises two truss side arms, the middle parts of the upper ends of the two truss side arms are both provided with limiting grooves, the middle parts of the opposite surfaces of the two truss side arms are both fixedly connected with supporting plates, and the supporting plates are fixedly connected with the limiting grooves. A plurality of inserting and pulling holes are formed in the middles of the upper ends of the two supporting plates, a truss main arm is jointly connected between the two supporting plates in a sliding mode, inserting and pulling mechanisms are arranged on the left portion and the right portion of the upper end of the truss main arm, and moving mechanisms are fixedly connected to the middles of the outer surfaces of the two inserting and pulling mechanisms in a penetrating and inserting mode; the front portions and the rear portions of the lower ends of the two truss side arms are fixedly connected with supporting columns. According to the shaft inserting and pulling device of the truss arm, through the arrangement of the inserting and pulling mechanism, rapid inserting and pulling of the inserting and pulling shaft can be achieved, the inserting and pulling efficiency is improved, through the arrangement of the moving mechanism, the truss main arm moves smoothly, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of truss arms, in particular to a shaft plugging and pulling device for a truss arm. Background Art

[0002] A truss is a supporting beam structure made of rods connected at both ends by welding, riveting or bolting. The advantage of a truss is that the rods mainly bear tension or compression, thereby fully utilizing the strength of the material. When the span is large, it can save material, reduce deadweight and increase rigidity compared to a solid beam. During the use of the truss arm, a plug-in shaft device is usually installed on it to achieve the positioning and fixation of the truss arm.

[0003] However, during the use of the existing plug-in and pull-out shaft device, the plug-in and pull-out operations of the plug-in and pull-out shaft are relatively cumbersome, and the plug-in and pull-out shaft cannot be quickly plugged in and pulled out, which reduces the plug-in and pull-out efficiency of the plug-in and pull-out shaft. The plug-in and pull-out shaft that can be quickly plugged in and pulled out does not fix the truss arm firmly enough, which affects the use effect of the truss arm and the plug-in and pull-out shaft and reduces the practicality of the plug-in and pull-out shaft device. Therefore, we introduce a plug-in and pull-out shaft device for a truss arm. Utility Model Content

[0004] The main purpose of the present invention is to provide a truss arm shaft plugging and unplugging device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A plug-in and pull-out shaft device for a truss arm, comprising a truss side arm, wherein the truss side arm is provided with two, a limiting groove is provided in the middle of the upper ends of the two truss side arms, a support plate is fixedly connected to the middle of the opposite surfaces of the two truss side arms, a plurality of plug-in and pull-out holes are provided in the middle of the upper ends of the two support plates, a truss main arm is slidably connected between the two support plates, a plug-in and pull-out mechanism is provided at the upper left and upper right parts of the truss main arm, a moving mechanism is inserted and fixedly connected at the middle of the outer surfaces of the two plug-in and pull-out mechanisms, and a support column is fixedly connected to the front and rear ends of the lower ends of the two truss side arms;

[0007] The lower parts of the outer surfaces of the four support columns are fixedly connected to the mounting base, the upper left part and the upper right part of the truss main arm are provided with through holes, the middle part of the left end and the middle part of the right end of the truss main arm are provided with movable grooves, and the groove walls of the two movable grooves are respectively slidably connected to the outer surfaces of the two support plates, and the middle part of the lower groove walls of the two movable grooves are provided with positioning grooves.

[0008] Preferably, the plug-in and pull-out mechanism includes a guide cylinder, a plug-in pin is movably connected through the middle of the lower cylinder wall of the guide cylinder, a positioning block is fixedly connected to the middle of the lower end of the plug-in pin, a limiting ring is fixedly connected through the upper part of the outer surface of the plug-in pin, a spring is fixedly connected between the upper end of the limiting ring and the upper cylinder wall of the guide cylinder, a pull rope is fixedly connected to the middle of the upper end of the plug-in pin, and the upper end of the pull rope passes through the upper cylinder wall of the guide cylinder, and the lower end of the guide cylinder is fixedly connected to the upper end of the truss main arm.

[0009] Preferably, the plug-in pin is engaged with the through hole, the diameter of the positioning block is smaller than that of the plug-in pin, and the positioning block is engaged with the positioning groove, and a pull ring is provided on the upper outer surface of the pull rope.

[0010] Preferably, the truss side arm and the support plate are arranged as an integrated structure, and the aperture length of the plug-in hole is consistent with the aperture length of the through hole.

[0011] Preferably, the moving mechanism includes a moving frame, a fixing hole is opened at the left upper end of the moving frame, and the hole wall of the fixing hole is fixedly connected to the outer surface of the guide cylinder, the lower front and lower rear ends of the moving frame are fixedly connected to the fixing frame, and the left frame wall and the right frame wall of the two fixed frames are movably connected with a moving wheel through a movable shaft.

[0012] Preferably, the movable frame is configured as a V-shaped structure, the lower end surface of the fixed frame is higher than the upper end surface of the truss side arm, and the movable wheel is slidably connected to the limiting groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the utility model, a plug-in and pull-out mechanism is provided. By pulling the pull rope to pull the plug-in shaft into the guide cylinder, and then releasing the pull rope, the plug-in and pull-out shaft can be quickly plugged in and out by the elasticity of the spring. The plug-in and pull-out operation is more convenient and improves the plug-in and pull-out efficiency. Moreover, by the clamping and positioning between the positioning block and the positioning groove, the plug-in and pull-out shaft can limit and fix the truss arm firmly, thereby enhancing the use effect of the truss arm and the plug-in and pull-out shaft.

[0015] 2. In the present invention, by setting a moving mechanism, the V-shaped moving frame can be supported at three points, which can improve the stability of the moving frame. Then, the moving wheels are rolled and limited in the limit grooves, which can improve the stability of the truss main arm when moving on the support plate, and also make the movement of the truss main arm smoother, which is convenient for flexible adjustment of the position of the truss main arm on the truss side arm, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a shaft plugging and unplugging device for a truss arm of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of a truss main arm of a truss arm shaft plugging and unplugging device according to the present invention;

[0018] Figure 3 This is a schematic cross-sectional view of the plugging and unplugging mechanism of a plugging and unplugging shaft device for a truss arm of the present invention;

[0019] Figure 4 This is a schematic diagram of the overall structure of a moving mechanism of a plug-in and pull-out shaft device for a truss arm of the present invention.

[0020] In the figure: 1. Truss side arm; 2. Support plate; 3. Insertion hole; 4. Limiting slot; 5. Truss main arm; 6. Insertion mechanism; 7. Moving mechanism; 8. Support column; 9. Mounting base; 10. Through hole; 11. Moving slot; 12. Positioning slot; 61. Guide cylinder; 62. Insertion pin; 63. Positioning block; 64. Limiting ring; 65. Spring; 66. Pull rope; 71. Moving frame; 72. Fixing hole; 73. Fixing frame; 74. Moving wheel. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] A truss arm plug-in shaft device, comprising a truss side arm 1, wherein the truss side arm 1 is provided with two, a limiting slot 4 is provided in the middle of the upper end of each of the two truss side arms 1, a support plate 2 is fixedly connected to the middle of the opposite surfaces of the two truss side arms 1, a plurality of plug-in holes 3 are provided in the middle of the upper end of each of the two support plates 2, a truss main arm 5 is slidably connected between the two support plates 2, a plug-in mechanism 6 is provided on the upper left and upper right parts of the truss main arm 5, a moving mechanism 7 is inserted and fixedly connected to the middle of the outer surface of each of the two plug-in mechanisms 6, and a support column 8 is fixedly connected to the front and rear of the lower ends of the two truss side arms 1;

[0026] The lower parts of the outer surfaces of the four support columns 8 are fixedly connected to the mounting base 9, the upper left and upper right parts of the truss main arm 5 are provided with through holes 10, the middle parts of the left end and the middle parts of the right end of the truss main arm 5 are provided with movable grooves 11, and the groove walls of the two movable grooves 11 are respectively slidably connected to the outer surfaces of the two support plates 2, and the middle parts of the lower groove walls of the two movable grooves 11 are provided with positioning grooves 12.

[0027] In this embodiment, the plug-in mechanism 6 includes a guide cylinder 61, a plug-in pin 62 is inserted and movably connected in the middle of the lower cylinder wall of the guide cylinder 61, a positioning block 63 is fixedly connected to the middle of the lower end of the plug-in pin 62, a limiting ring 64 is inserted and fixedly connected to the upper surface of the plug-in pin 62, a spring 65 is fixedly connected between the upper end of the limiting ring 64 and the upper cylinder wall of the guide cylinder 61, a pull rope 66 is fixedly connected to the middle of the upper end of the plug-in pin 62, and the upper end of the pull rope 66 passes through the upper cylinder wall of the guide cylinder 61, and the lower end of the guide cylinder 61 is fixedly connected to the upper end of the truss main arm 5; the plug-in pin 62 is engaged with the through hole 10, and the positioning The diameter of block 63 is smaller than the diameter of plug-in pin 62, so that the positioning block 63 does not affect the plug-in and pull-out of plug-in pin 62, and the positioning block 63 is engaged with the positioning groove 12, which can play a positioning role for the plug-in pin 62. A pull ring is provided on the upper outer surface of the pull rope 66 to facilitate pulling the pull rope 66; the truss side arm 1 and the support plate 2 are arranged as an integrated structure, which improves the structural strength of the support plate 2, and the aperture length of the plug-in hole 3 is consistent with the aperture length of the through hole 10, which is conducive to the plug-in pin 62 passing through the through hole 10 and being inserted into the plug-in hole 3, thereby realizing a quick connection between the truss main arm 5 and the truss side arm 1.

[0028] In this embodiment, the moving mechanism 7 includes a moving frame 71, a fixing hole 72 is opened at the left upper end of the moving frame 71, and the hole wall of the fixing hole 72 is fixedly connected to the outer surface of the guide cylinder 61, and the front and rear lower ends of the moving frame 71 are fixedly connected to the fixing frames 73, and the left frame wall and the right frame wall of the two fixing frames 73 are interlaced and movably connected with moving wheels 74 through a movable shaft; the moving frame 71 is set to a V-shaped structure, which can improve the stability of the moving frame 71, and the lower end surface of the fixing frame 73 is higher than the upper end surface of the truss side arm 1, so that the fixing frame 73 does not contact the truss side arm 1 and does not affect the rotation of the moving wheel 74, and the moving wheel 74 is slidably connected to the limiting groove 4, and the moving wheel 74 can be limited in the limiting groove 4.

[0029] It should be noted that the present invention is a plug-in and pull-out shaft device for a truss arm. During use, the entire truss is first fixed by installing the base frame 9. When the truss main arm 5 needs to be moved on the truss side arm 1, the pull ring on the pull rope 66 can be hooked to pull the plug-in pin 62 out of the plug-in hole 3, and the fixed limit between the truss main arm 5 and the support plate 2 can be cancelled, so that the position of the truss main arm 5 can be flexibly moved. In the process of movement, three-point support can be performed by the V-shaped moving frame 71, which can improve the stability and firmness of the moving frame 71. Then, the moving wheel 74 is rolled in the limit groove 4 to limit the position, so as to improve the stability of the truss main arm 5 when moving on the support plate 2. The stability also makes the truss main arm 5 move more smoothly, thereby facilitating the flexible adjustment of the position of the truss main arm 5 on the truss side arm 1. When the position is determined, the pull rope 66 is loosened, and the limit ring 64 can be pushed downward by the elasticity of the spring 65, so that the plug-in pin 62 passes downward through the through hole 10 and is inserted into the plug-in hole 3, and the positioning block 63 is also inserted into the positioning groove 12 for clamping and positioning. The plug-in pin 62 can limit and fix the truss main arm 5 firmly, and can also realize the quick plug-in and pull-out of the plug-in pin 62. The plug-in and pull-out operation of the plug-in pin 62 is relatively convenient, which improves the plug-in and pull-out efficiency, thereby enhancing the use effect of the truss arm and the plug-in shaft, and also improving the practicality of the plug-in shaft device.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A truss arm shaft plugging and unplugging device, comprising a truss side arm (1), characterized in that: Two truss side arms (1) are provided, and a limiting groove (4) is provided in the middle of the upper ends of the two truss side arms (1), and a support plate (2) is fixedly connected to the middle of the opposite surfaces of the two truss side arms (1), and a plurality of plug-in holes (3) are provided in the middle of the upper ends of the two support plates (2). A truss main arm (5) is slidably connected between the two support plates (2), and a plug-in mechanism (6) is provided at the upper left and upper right ends of the truss main arm (5), and a moving mechanism (7) is inserted and fixedly connected in the middle of the outer surfaces of the two plug-in mechanisms (6), and a support column (8) is fixedly connected to the front and rear of the lower ends of the two truss side arms (1); The lower parts of the outer surfaces of the four support columns (8) are fixedly connected to a mounting base (9), the upper left part and the upper right part of the truss main arm (5) are provided with through holes (10), the middle part of the left end and the middle part of the right end of the truss main arm (5) are provided with moving grooves (11), and the groove walls of the two moving grooves (11) are respectively slidably connected to the outer surfaces of the two support plates (2), and the middle parts of the lower groove walls of the two moving grooves (11) are provided with positioning grooves (12).

2. The truss arm shaft plugging and unplugging device according to claim 1, characterized in that: The plug-in and pull-out mechanism (6) comprises a guide cylinder (61), a plug-in pin shaft (62) is inserted and movably connected in the middle of the lower cylinder wall of the guide cylinder (61), a positioning block (63) is fixedly connected in the middle of the lower end of the plug-in and pull-out pin shaft (62), a limit ring (64) is inserted and fixedly connected in the upper part of the outer surface of the plug-in and pull-out pin shaft (62), a spring (65) is fixedly connected between the upper end of the limit ring (64) and the upper cylinder wall of the guide cylinder (61), a pull rope (66) is fixedly connected in the middle of the upper end of the plug-in and pull-out pin shaft (62), and the upper end of the pull rope (66) passes through the upper cylinder wall of the guide cylinder (61), and the lower end of the guide cylinder (61) is fixedly connected to the upper end of the truss main arm (5).

3. The truss arm shaft plugging and unplugging device according to claim 2, characterized in that: The plug-in pin shaft (62) is engaged with the through hole (10), the diameter length of the positioning block (63) is smaller than the diameter length of the plug-in pin shaft (62), and the positioning block (63) is engaged with the positioning groove (12), and a pull ring is provided on the upper part of the outer surface of the pull rope (66).

4. The truss arm shaft plugging and unplugging device according to claim 1, characterized in that: The truss side arm (1) and the support plate (2) are arranged as an integrated structure, and the aperture length of the plug-in hole (3) is consistent with the aperture length of the through hole (10).

5. The truss arm shaft plugging and unplugging device according to claim 1, characterized in that: The moving mechanism (7) comprises a moving frame (71), a fixing hole (72) is provided at the left upper end of the moving frame (71), and the hole wall of the fixing hole (72) is fixedly connected to the outer surface of the guide cylinder (61), the lower front end and the lower rear end of the moving frame (71) are both fixedly connected to a fixing frame (73), and the left frame wall and the right frame wall of the two fixing frames (73) are both interlaced and movably connected with a moving wheel (74) through a movable shaft.

6. The truss arm shaft plugging and unplugging device according to claim 5, characterized in that: The movable frame (71) is configured as a V-shaped structure, the lower end surface of the fixed frame (73) is higher than the upper end surface of the truss side arm (1), and the movable wheel (74) is slidably connected to the limiting groove (4).

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