Two-way telescopic mechanism of trapezoidal bridge

Abstract

The utility model relates to a bidirectional telescopic mechanism for a trapezoidal bridge, which comprises two supports and a plurality of first support mechanisms mounted between the two supports, and bridge extension mechanisms are arranged at two ends of the two supports. The bridge extension mechanism comprises two extension plates slidably connected into the two supports through a sliding mechanism, two moving grooves formed in the bottoms of the two extension plates, moving rods installed in the moving grooves and multiple sets of second supporting mechanisms installed between the two moving rods, and the sliding mechanism comprises sliding grooves formed in the inner walls of the tops and the bottoms of the supports. According to the telescopic cable tray, the cable tray can be stretched or contracted in the using process, then the overall length of the cable tray can be adjusted according to the actual using condition, inconvenience brought to installation is reduced, and the telescopic cable tray is more convenient for people to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable trays, and particularly relates to a bidirectional telescopic mechanism for a trapezoidal cable tray. Background Technique

[0002] Cable trays are divided into trough cable trays, tray cable trays, ladder cable trays, grid cable trays and other structures, which are composed of brackets, cantilever arms and installation accessories, etc. They can be erected independently or laid on various building and pipe gallery brackets, reflecting the characteristics of simple structure, beautiful appearance, flexible configuration and convenient maintenance. All parts need to be galvanized. The cable trays installed outdoors of buildings.

[0003] During the use of the existing cable trays, the length of the cable trays is generally fixed. However, during the actual laying of the cable trays, situations often occur where the cable trays need to be stretched or contracted. If the cable trays cannot be stretched or contracted, the overall length of the cable trays cannot be adjusted, which will cause inconvenience in installation, affect the laying and use of cables, and cause construction troubles. Content of the Utility Model

[0004] The purpose of the utility model is to provide a bidirectional telescopic mechanism for a trapezoidal cable tray with simple structure and reasonable design to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] A bidirectional telescopic mechanism for a trapezoidal cable tray includes two brackets, and a plurality of first support mechanisms installed between the two brackets. Both ends of the two brackets are provided with cable tray extension mechanisms. The cable tray extension mechanism includes two extension plates slidably connected in the two brackets through a sliding mechanism, two moving grooves opened at the bottoms of the two extension plates, moving rods installed in the moving grooves, and multiple groups of second support mechanisms installed between the two moving rods. Fixed mechanisms for fixing the extension plates are provided on both of the two brackets.

[0007] As a further optimized solution of the utility model, the first support mechanism includes a first sleeve installed on one side of one of the brackets, a first limit plate slidably connected in the first sleeve, and a first telescopic plate installed on one side of the other bracket. One end of the first telescopic plate extends into the interior of the first sleeve and is fixedly connected to one side of the first limit plate. A plurality of first mounting holes are opened on the top surface of the first telescopic plate, and a first bolt threadedly connected to the first sleeve and cooperating with the first mounting holes is provided.

[0008] As a further optimized solution of the present utility model, the sliding mechanism includes chutes opened on the inner walls of the top and bottom of the bracket, sliders slidably connected inside the chutes, and one side of each of the two sliders is fixedly connected to the top and bottom of the extension plate respectively.

[0009] As a further optimized solution of the present utility model, the second support mechanism includes a second sleeve installed on one side of one of the extension plates, a second limit plate slidably connected inside the second sleeve, and a second telescopic plate installed on one side of the other extension plate. One end of the second telescopic plate extends into the interior of the second sleeve and is fixedly connected to one side of the second limit plate. A plurality of second mounting holes are opened on the top surface of the second telescopic plate. A second bolt that cooperates with the second mounting holes is threadedly connected to the first sleeve. A limiting mechanism is installed on both the second sleeve and the second telescopic plate. Limiting blocks are installed on the tops of the second sleeve and the second telescopic plate respectively, and the two limiting blocks are respectively sleeved on the two moving rods.

[0010] As a further optimized solution of the present utility model, the limiting mechanism includes cavities opened in the second sleeve and the second telescopic plate, a sliding plate slidably connected inside the cavities, a spring installed on one side of the sliding plate, a connecting plate installed on the top of the sliding plate, a clamping plate installed on the top of the connecting plate, and a fixing rod installed on one side of the clamping plate. A plurality of fixing holes that cooperate with the fixing rod are opened on one side of the extension plate. Moving ports that communicate with the cavities and facilitate the movement of the connecting plate are opened on the tops of the second sleeve and the second telescopic plate.

[0011] As a further optimized solution of the present utility model, the fixing mechanism includes a strip-shaped groove opened on the bracket, a mounting plate installed on one side of the extension plate and having a T-shaped structure and clamped in the strip-shaped groove. Two first threaded holes are opened on the mounting plate. A plurality of second threaded holes that cooperate with the first threaded holes are opened on the extension plate. The first threaded holes and the second threaded holes are fixedly connected by locking bolts.

[0012] The beneficial effects of the present utility model are as follows: During the use of the present utility model, the bridge can be stretched or contracted, and thus the overall length of the bridge can be adjusted according to the actual use situation, reducing the inconvenience brought to the installation and being more convenient for people to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the first three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2 is the first cross-sectional structural schematic diagram of the present utility model;

[0015] Figure 3 is the second cross-sectional structural schematic diagram of the present utility model;

[0016] Figure 4 is the second three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 5 is the present utility model Figure 2 magnified view of part A therein;

[0018] Figure 6 is the present utility model Figure 2 magnified view of part B therein;

[0019] Figure 7 is the present utility model Figure 3 magnified view of part C therein;

[0020] Figure 8 is the present utility model Figure 4 magnified view of part D therein.

[0021] In the figure: 1, support; 2, extension plate; 3, moving groove; 4, moving rod; 5, first sleeve; 6, first limiting plate; 7, first telescopic plate; 8, first mounting hole; 9, sliding groove; 10, slider; 11, second sleeve; 12, second limiting plate; 13, second telescopic plate; 14, second mounting hole; 15, limiting block; 16, sliding plate; 17, connecting plate; 18, clamping plate; 19, fixing rod; 20, fixing hole; 21, strip-shaped groove; 22, mounting plate; 23, spring. Specific embodiments

[0022] The following further describes the present application in detail with reference to the accompanying drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0023] As Figure 1 - Figure 8As shown in the figure, a trapezoidal bridge truss two-way telescopic mechanism includes two brackets 1 and a plurality of first support mechanisms installed between the two brackets 1. Both ends of the two brackets 1 are provided with bridge truss extension mechanisms. The bridge truss extension mechanism includes two extension plates 2 slidably connected in the two brackets 1 through a sliding mechanism, two moving grooves 3 opened at the bottoms of the two extension plates 2, moving rods 4 installed in the moving grooves 3, and multiple groups of second support mechanisms installed between the two moving rods 4. The sliding mechanism includes sliding grooves 9 opened on the inner walls of the tops and bottoms of the brackets 1, sliders 10 slidably connected inside the sliding grooves 9. One sides of the two sliders 10 are respectively fixedly connected to the tops and bottoms of the extension plates 2. The provided sliding grooves 9 and sliders 10 can not only limit the extension plates 2, but also improve the connectivity between the brackets 1 and the extension plates 2. Fixed mechanisms for fixing the extension plates 2 are provided on both brackets 1. The fixed mechanism includes a strip-shaped groove 21 opened on the bracket 1, a mounting plate 22 installed on one side of the extension plate 2 and having a T-shaped structure and clamped in the strip-shaped groove 21. Two first threaded holes are opened on the mounting plate 22, and a plurality of second threaded holes for cooperating with the first threaded holes are opened on the extension plate 2. The first threaded holes and the second threaded holes are fixedly connected through locking bolts;

[0024] When in use, when it is necessary to extend the length of the bridge truss, remove the locking bolts, and then the extension plate 2 can be pulled to the side away from the bracket 1. After the extension plate 2 is pulled to the appropriate position, then the locking screw is screwed into the first threaded hole and one of the second threaded holes, and the extension plate 2 can be fixed. When it is necessary to shorten the length of the bridge truss, the above operation steps can be followed, and the extension plate 2 is pushed to the side close to the bracket 1, and the length of the bridge truss is reduced. In this way, the bridge truss can be stretched or contracted, and thus the overall length of the bridge truss can be adjusted according to the actual use situation, reducing the inconvenience brought to the installation and being more convenient for people to use;

[0025] Such as Figure 1 、 Figure 6 、and Figure 8As shown in the figure, the first support mechanism includes a first sleeve 5 installed on one side of one of the brackets 1, a first limit plate 6 slidably connected inside the first sleeve 5, and a first telescopic plate 7 installed on one side of the other bracket 1. One end of the first telescopic plate 7 extends into the interior of the first sleeve 5 and is fixedly connected to one side of the first limit plate 6. The first limit plate 7 is provided to prevent the first telescopic rod 7 from sliding out of the interior of the first sleeve 5. A plurality of first mounting holes 8 are provided on the top surface of the first telescopic plate 7. A first bolt that cooperates with the first mounting holes 8 is threadedly connected to the first sleeve 5. The first bolt is threadedly connected into one of the first mounting holes 8, thereby fixing the first telescopic plate 7 and the first sleeve 5. The second support mechanism includes a second sleeve 11 installed on one side of one of the extension plates 2, a second limit plate 12 slidably connected inside the second sleeve 11, and a second telescopic plate 13 installed on one side of the other extension plate 2. One end of the second telescopic plate 13 extends into the interior of the second sleeve 11 and is fixedly connected to one side of the second limit plate 12. The second limit plate 12 is provided to prevent the second telescopic rod 13 from sliding out of the interior of the second sleeve 11. A plurality of second mounting holes 14 are provided on the top surface of the second telescopic plate 13. A second bolt that cooperates with the second mounting holes 14 is threadedly connected to the first sleeve 5. The second bolt is threadedly connected into one of the second mounting holes 14, thereby fixing the second telescopic plate 13 and the second sleeve 11;

[0026] During the use process, when it is necessary to adjust the width of the bridge, the first bolt and the second bolt can be removed. At this time, the first telescopic plate 7 will slide inside the first sleeve 5, and the second telescopic plate 13 will slide inside the second sleeve 11. When it is necessary to widen the width of the bridge, the two brackets 1 can be pulled towards the mutually distant sides. When it is necessary to narrow the width of the bridge, the two brackets 1 can be pushed towards the mutually approaching sides. After the positions of the two brackets 1 are adjusted, then the first bolt and the second bolt are screwed on again;

[0027] Such as Figure 1 、 Figure 2 、 Figure 5 and Figure 7As shown in the figure, a limiting mechanism is installed on both the second sleeve 11 and the second telescopic plate 13. Limiting blocks 15 are installed on the tops of the second sleeve 11 and the second telescopic plate 13. The two limiting blocks 15 are respectively sleeved on the two moving rods 4. The limiting mechanism includes cavities opened in the second sleeve 11 and the second telescopic plate 13, a sliding plate 16 slidably connected in the cavities, a spring 23 installed on one side of the sliding plate 16, a connecting plate 17 installed on the top of the sliding plate 16, a clamping plate 18 installed on the top of the connecting plate 17, and a fixing rod 19 installed on one side of the clamping plate 18. A plurality of fixing holes 20 for cooperating with the fixing rod 19 are opened on one side of the extension plate 2. Moving openings communicating with the cavities and facilitating the movement of the connecting plate 17 are opened on the tops of the second sleeve 11 and the second telescopic plate 13.

[0028] During the process of adjusting the length of the bridge frame, the position of the second support mechanism can be appropriately adjusted, which not only avoids the situation that the distance between adjacent support mechanisms is too large and is not conducive to the installation of cables, but also avoids the second support mechanism getting in the way when the extension plate 2 is retracted. When the position of the second support mechanism needs to be adjusted, the clamping plate 18 can be pulled to the side away from the extension plate 2. At this time, the spring 23 will undergo elastic deformation, and the fixing rod 19 will be pulled out from the inside of the fixing hole 20. Then, the second telescopic plate 13 and the second sleeve 11 can be pushed. At this time, the limiting block 15 will slide on the outside of the moving rod 4. After the second support mechanism moves to the appropriate position, release the clamping plate 18. At this time, under the action of the elastic force of the spring 23, the fixing rod 19 will be fixed back into one of the fixing holes 20, and the second support mechanism will be fixed.

[0029] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A bidirectional telescopic mechanism for a trapezoidal bridge frame, comprising two brackets (1) and a plurality of first support mechanisms installed between the two brackets (1), characterized in that, Both ends of the two brackets (1) are provided with bridge extension mechanisms. The bridge extension mechanisms include two extension plates (2) slidably connected in the two brackets (1) through sliding mechanisms, two moving grooves (3) opened at the bottoms of the two extension plates (2), moving rods (4) installed in the moving grooves (3), and multiple groups of second support mechanisms installed between the two moving rods (4). Fixed mechanisms for fixing the extension plates (2) are provided on both of the two brackets (1).

2. The bidirectional telescopic mechanism of a trapezoidal bridge crane according to claim 1, characterized in that: The first support mechanism includes a first sleeve (5) installed on one side of one of the brackets (1), a first limit plate (6) slidably connected in the first sleeve (5), and a first telescopic plate (7) installed on one side of the other bracket (1). One end of the first telescopic plate (7) extends into the interior of the first sleeve (5) and is fixedly connected to one side of the first limit plate (6). A plurality of first mounting holes (8) are opened on the top surface of the first telescopic plate (7), and a first bolt that cooperates with the first mounting holes (8) is threadedly connected to the first sleeve (5).

3. The bidirectional telescopic mechanism of a trapezoidal bridge crane according to claim 1, characterized in that: The sliding mechanism includes sliding grooves (9) opened on the inner walls of the top and bottom of the bracket (1), sliders (10) slidably connected inside the sliding grooves (9), and one side of each of the two sliders (10) is fixedly connected to the top and bottom of the extension plate (2) respectively.

4. A bidirectional telescopic mechanism for a trapezoidal bridge frame according to claim 1, characterized in that: The second support mechanism includes a second sleeve (11) installed on one side of one of the extension plates (2), a second limit plate (12) slidably connected in the second sleeve (11), and a second telescopic plate (13) installed on one side of the other extension plate (2). One end of the second telescopic plate (13) extends into the interior of the second sleeve (11) and is fixedly connected to one side of the second limit plate (12). A plurality of second mounting holes (14) are opened on the top surface of the second telescopic plate (13), and a second bolt that cooperates with the second mounting holes (14) is threadedly connected to the second sleeve (11). Limiting mechanisms are installed on both the second sleeve (11) and the second telescopic plate (13). Limiting blocks (15) are installed on the tops of the second sleeve (11) and the second telescopic plate (13), and the two limiting blocks (15) are respectively sleeved on the two moving rods (4).

5. The bidirectional telescopic mechanism of a trapezoidal bridge crane according to claim 4, characterized in that: The limiting mechanism includes cavities opened in the second sleeve (11) and the second telescopic plate (13), a sliding plate (16) slidably connected in the cavities, a spring (23) installed on one side of the sliding plate (16), a connecting plate (17) installed on the top of the sliding plate (16), a clamping plate (18) installed on the top of the connecting plate (17), and a fixing rod (19) installed on one side of the clamping plate (18). A plurality of fixing holes (20) that cooperate with the fixing rod (19) are opened on one side of the extension plate (2). Moving openings that communicate with the cavities and facilitate the movement of the connecting plate (17) are opened on the tops of the second sleeve (11) and the second telescopic plate (13).

6. The two-way telescopic mechanism of a trapezoidal bridge crane according to claim 1, characterized in that: The fixing mechanism includes a strip-shaped groove (21) formed in the bracket (1), a mounting plate (22) mounted on one side of the extension plate (2) and having a T-shaped structure and clamped in the strip-shaped groove (21). Two first threaded holes are formed in the mounting plate (22), and a plurality of second threaded holes are formed in the extension plate (2) for use in cooperation with the first threaded holes. The first threaded holes and the second threaded holes are fixedly connected by locking bolts.

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