Large-limit cantilever mounting structure matched with lattice type steel column

Abstract

A large-limit cantilever installation structure matched with a lattice type steel column comprises two frames distributed up and down, the lattice type steel column is sleeved with the frames, the frames are fixedly connected with extension frames, at least one installation rod is fixedly arranged between the upper extension frame and the lower extension frame, the installation rods extend in the vertical direction, at least two cantilever bases are arranged on the installation rods, and the cantilever bases are fixedly connected with the lattice type steel column. The cantilever base comprises a bottom plate fixedly connected with the mounting rod, and the bottom plate is fixedly connected with two mounting plates which are parallel to each other and used for being connected with a cantilever. According to the utility model, the node stress concentration degree of the structure is reduced, and the safety and stability of the structure are improved.

Description

Technical Field

[0001] This utility model relates to the field of large-limit cantilever installation technology, specifically a large-limit cantilever installation structure that cooperates with a lattice steel column. Background Technology

[0002] The cantilever structure generally consists of a horizontal cantilever, an inclined cantilever, a catenary cable seat, a cantilever support, and support pipe clamps, serving to bear the contact suspension load, fix the position of the catenary cable, and connect and fix the contact wire positioning device. When the lateral clearance of the contact wire support pillars in electrified railways is too large, rigid cross spans and double-track cantilever structures are generally used to solve the problem. A rigid cross span requires two pillars, one crossbeam, and one hanging column; a double-track cantilever structure requires one pillar, one crossbeam, and one hanging column. When the lateral clearance of the H-shaped steel pillars or cylindrical pillars of the contact wire is too large, the existing cantilever installation structure has a high degree of stress concentration and is easily affected by wind vibration and wind-induced vibration, resulting in poor safety and stability. Utility Model Content

[0003] To address the issue that the high stress concentration at the nodes of the cantilever arm installation structure in the prior art affects its safety and durability, this utility model provides a cantilever arm installation structure that works in conjunction with a lattice steel column, thereby improving the safety and durability of the cantilever arm installation structure.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a large-limit cantilever mounting structure that cooperates with a lattice steel column includes two frames distributed vertically. The frames are sleeved on the lattice steel column. The frames are fixedly connected to extension frames. At least one mounting rod is fixedly arranged between the two upper and lower extension frames. The mounting rod extends vertically. At least two cantilever bases are provided on the mounting rod. The cantilever base includes a base plate fixedly connected to the mounting rod. The base plate is fixedly connected to two parallel mounting plates for connecting the cantilever.

[0005] As a further optimization of the utility model of a cantilever arm installation structure that cooperates with a lattice steel column: the frame includes two parallel bearing plates, which are connected by two first fixing plates and fixedly connected by fixing bolts.

[0006] As a further optimization of the large-limit cantilever installation structure that cooperates with the lattice steel column, the extension frame includes two extension plates, which are connected to the bearing plates of the frame in a one-to-one correspondence, and there is an included angle between the extension plates and the bearing plates.

[0007] As a further optimization of the utility model of a large-limit cantilever mounting structure that cooperates with a lattice steel column: the distance between the two extension plates gradually decreases in the direction away from the frame, the mounting rod is set as one, and the two extension plates of the extension frame are fixedly connected to the mounting rod by the first mounting bolt.

[0008] As a further optimization of the utility model of a cantilever arm installation structure that cooperates with a lattice steel column: the adjacent extension plates and the bearing plates are fixedly connected by triangular connecting pieces.

[0009] As a further optimization of the large-limit cantilever mounting structure that cooperates with the lattice steel column, the distance between the two extension plates gradually increases in the direction away from the frame. There are two mounting rods. The extension plates of the upper and lower extension frames are connected to the mounting rods one by one through the second fastening bolts. All the mounting rods are fixedly connected to at least two horizontal square tubes, and the two horizontal square tubes are distributed in the vertical direction. The cantilever base is fixedly set on the horizontal square tubes.

[0010] As a further optimization of the utility model of a cantilever arm installation structure that cooperates with a lattice steel column: the extension plate is fixedly connected to the installation rod through a connecting plate.

[0011] As a further optimization of the large-limit cantilever installation structure that cooperates with the lattice steel column, the two extension plates are fixedly connected by a second fixing plate, and the second fixing plate and the extension plates are fixedly connected by connecting bolts.

[0012] As a further optimization of the large-limit cantilever installation structure that cooperates with the lattice steel column, the first fixing plate is fixedly connected to the bearing plate by the first fastening bolt. The first fixing plate is provided with a first fixing screw hole, and the bearing plate is provided with a plurality of second fixing screw holes along its length direction. The first fastening bolt passes through the first fixing screw hole and one of the second fixing screw holes in sequence and is screwed to the first fixing screw hole and the second fixing screw hole in sequence.

[0013] As a further optimization of the utility model of a cantilever arm installation structure that cooperates with a lattice steel column: the two frames and the two extension frames are all fixedly connected by several inclined reinforcing rods.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1) This utility model sets up a frame fitted on a lattice steel column, with an extension frame fixedly connected to the frame. At least one mounting rod is fixedly set between the upper and lower extension frames, and the mounting rod extends in the vertical direction. At least two cantilever bases are set on the mounting rod. The connection between the frame, the extension frame and the mounting rod reduces the stress concentration at the nodes of the structure, reduces the overall weight and facilitates installation.

[0016] 2) This utility model, by setting an extension frame, includes two extension plates. The distance between the two extension plates gradually decreases in the direction away from the frame. At this time, a triangular stable structure is formed between the first fixing plate and the two extension plates, which enhances the stability of the structure. The distance between the two extension plates gradually increases in the direction away from the frame. Two mounting rods are set. The extension plates of the upper and lower extension frames are connected to the mounting rods one by one by the second fastening bolts. All the mounting rods are fixedly connected to at least two horizontal square tubes, and the two horizontal square tubes are distributed in the vertical direction. At this time, a triangular stable structure is formed between the two extension plates and the horizontal square tubes located on the same plane, which enhances the stability of the structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the combination of the frame, extension frame, and mounting rod of this utility model;

[0018] Figure 2 This is a schematic diagram of one connection method for the extension plate of this utility model;

[0019] Figure 3 This is another schematic diagram showing the arrangement of the frame, extension frame, and mounting rod of this utility model;

[0020] Figure 4 This is a schematic diagram of another connection method for the extension plate of this utility model;

[0021] Figure 5 This is a schematic diagram of the installation of the wrist arm base of this utility model;

[0022] The markings in the diagram are: 1. Frame, 101. Bearing plate, 2. Extension frame, 201. Extension plate, 3. Horizontal square tube, 4. Lattice steel column, 5. First fixing plate, 6. Second fixing plate, 7. Fixing bolt, 8. Connecting piece, 9. Connecting plate, 10. Cantilever base, 11. Reinforcing rod, 12. Mounting rod, 13. Connecting bolt, 14. First fastening bolt, 15. Mounting plate, 16. Base plate, 17. Mounting screw hole, 18. Second fastening bolt, 19. Second mounting bolt. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below with reference to specific embodiments. Parts not described or disclosed in detail in the following embodiments of this utility model should be understood as prior art known or should be known by those skilled in the art, such as the structure of the lattice steel column 4, how the wrist arm is connected to the wrist arm base 10, etc.

[0024] Example 1

[0025] A cantilever mounting structure that works in conjunction with a lattice steel column, such as Figures 1 to 5 As shown, the structure includes two vertically distributed frames 1, which are parallel to each other. The frames 1 are mounted on a lattice steel column 4. An extension frame 2 is fixedly connected to the frames 1. At least one mounting rod 12 is fixedly installed between the two extension frames 2, and the mounting rod 12 extends vertically. At least two cantilever bases 10 are provided on the mounting rod 12. The connection between the frames 1, the extension frame 2 and the mounting rod 12 reduces the stress concentration at the nodes of the structure, reduces the overall weight and facilitates installation. The cantilever base 10 includes a base plate 16 fixedly connected to the mounting rod 12. The base plate 16 is fixedly connected to two parallel mounting plates 15 for connecting the cantilever arms. The mounting plates 15 are provided with mounting holes 17.

[0026] The above are the basic embodiments of this utility model. Further improvements, optimizations, and limitations can be made based on the above to obtain the following embodiments:

[0027] Example 2

[0028] This embodiment is an improvement on Embodiment 1. Its main structure is the same as Embodiment 1, but the improvement lies in the following: the frame 1 includes two parallel support plates 101 connected by two first fixing plates 5. The two first fixing plates 5 are parallel to each other and are located near the ends of the support plates 101. The two first fixing plates 5 are fixedly connected by fixing bolts 7. Multiple fixing screw holes can be opened along the length of the first fixing plate 5, and the fixing bolts 7 can pass through two opposite fixing screw holes as needed. The first fixing plate 5 is fixedly connected to the support plate 101 by first fastening bolts 14. To improve the fit between the frame 1 and the lattice steel column 4, the first fixing plate 5 has first fixing screw holes, and the support plate 101 has multiple second fixing screw holes along its length. The first fastening bolts 14 pass through the first fixing screw holes and one of the second fixing screw holes in sequence and are screwed into the first fixing screw hole and the second fixing screw hole in sequence. To enhance the load-bearing capacity of the structure, the two frames 1 and the two extension frames 2 are fixedly connected by several inclined reinforcing rods 11, which can effectively prevent the frames 1 from twisting or deforming when subjected to external forces. To further strengthen the reinforcement, the reinforcing rods 11 will not tilt in one direction as a whole.

[0029] Example 3

[0030] This embodiment is an improvement on embodiment 2. Its main structure is the same as that of embodiment 2. The improvement is that the extension frame 2 includes two extension plates 201, which are connected to the support plate 101 of the frame 1 in a one-to-one correspondence, and there is an included angle between the extension plate 201 and the support plate 101.

[0031] Example 4

[0032] This embodiment is an improvement on embodiment 3. Its main structure is the same as embodiment 3, but the improvement lies in the following: the distance between the two extension plates 201 gradually decreases in the direction away from the frame 1. At this time, a triangular stable structure is formed between the first fixing plate 5 and the two extension plates 201, enhancing the stability of the structure. Since the distance between the two extension plates 201 gradually decreases in the direction away from the frame 1, a certain distance is formed between the ends of the two extension plates 201 away from the frame 1. Therefore, the mounting rod 12 is set as one, and the two extension plates 201 of the extension frame 2 are fixedly connected to the mounting rod 12 by the first mounting bolt. Adjacent extension plates 201 are fixedly connected to the bearing plate 101 by triangular connecting pieces 8. For ease of processing, the bearing plate 101 and adjacent extension plates 201 can be integrally connected. A triangle is cut off from the middle of the integrally connected bearing plate 101 and extension plate 201 forming a single plate, and then the extension plate 201 is bent at 30°. The triangular gap formed by the bend is then filled and welded using the triangular connecting pieces 8.

[0033] Example 5

[0034] This embodiment is an improvement on embodiment 3. Its main structure is the same as embodiment 3, but the improvement lies in the following: the distance between the two extension plates 201 gradually increases in the direction away from the frame 1; two mounting rods 12 are provided; the extension plates 201 of the upper and lower extension frames 2 are connected to the mounting rods 12 one-to-one by the second fastening bolts 18; all mounting rods 12 are jointly fixedly connected to at least two horizontal square tubes 3, which are distributed vertically. At this time, a triangular stable structure is formed between the two extension plates 201 and the horizontal square tubes 3 located on the same plane. The bearing plate 101 and the adjacent extension plates 201 can be integrally connected. For ease of processing, a triangle can be cut off from the middle of the integrally connected bearing plate 101 and extension plates 201, and then the extension plates 201 are bent 30° in the opposite direction to the bending direction of embodiment 4, so that the distance between the two extension plates 201 gradually increases in the direction away from the frame 1. Then, the adjacent bearing plates 101 and extension plates 201 are welded together. The cantilever base 10 is fixedly mounted on the horizontal square tube 3. The cantilever base 10, the horizontal square tube 3, and the mounting rod 12 can be connected by the second mounting bolt 19. Two or three cantilever bases 10 can be installed on each horizontal square tube 3. Since the mounting rod 12 in this design is made of channel steel, and the frame 1, extension frame 2, first fixing plate 5, and second fixing plate 6 in this design are all made of angle steel, in order to facilitate the connection between the extension plate 201 and the mounting rod 12, the extension plate 201 is fixedly connected to the mounting rod 12 through the connecting plate 9. The connecting plate 9 is also made of angle steel, and the extension plate 201 and the connecting plate 9 can also be integrally formed. A triangle is cut off at an appropriate position in the integrally formed plate of the connecting plate 9 and the extension plate 201, and then the connecting plate 9 is bent to facilitate the connection between the connecting plate 9 and the mounting rod 12. The connecting plate 9 and the mounting rod 12 are connected by the second fastening bolt 18.

[0035] Example 6

[0036] This embodiment is an improvement on embodiment 3. Its main structure is the same as that of embodiment 3. The improvement is that, in order to further enhance the stability of the structure, the two extension plates 201 are fixedly connected by a second fixing plate 6, and the second fixing plate 6 and the extension plates 201 are fixedly connected by connecting bolts 13.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cantilever arm installation structure for use with lattice steel columns, characterized in that: It includes two vertically distributed frames (1), which are fitted onto a lattice steel column (4). The frames (1) are fixedly connected to an extension frame (2). At least one mounting rod (12) is fixedly installed between the two extension frames (2), and the mounting rod (12) extends vertically. At least two cantilever bases (10) are provided on the mounting rod (12). The cantilever base (10) includes a base plate (16) fixedly connected to the mounting rod (12). The base plate (16) is fixedly connected to two parallel mounting plates (15) for connecting the cantilever arms.

2. The cantilever arm installation structure for use with lattice steel columns as described in claim 1, characterized in that: The frame (1) includes two parallel support plates (101), which are connected by two first fixing plates (5), and the two first fixing plates (5) are fixedly connected by fixing bolts (7).

3. The cantilever arm installation structure for use with lattice steel columns as described in claim 2, characterized in that: The extension frame (2) includes two extension plates (201), which are connected one-to-one with the support plate (101) of the frame (1), and there is an angle between the extension plate (201) and the support plate (101).

4. The cantilever arm installation structure for use with lattice steel columns as described in claim 3, characterized in that: The distance between the two extension plates (201) gradually decreases in the direction away from the frame (1), and the mounting rod (12) is set as one. The two extension plates (201) of the extension frame (2) are fixedly connected to the mounting rod (12) by the first mounting bolt.

5. The cantilever arm installation structure for use with lattice steel columns as described in claim 4, characterized in that: The adjacent extension plates (201) and the support plate (101) are fixedly connected by triangular connecting pieces (8).

6. The cantilever arm installation structure for use with lattice steel columns as described in claim 3, characterized in that: The distance between the two extension plates (201) gradually increases in the direction away from the frame (1). There are two mounting rods (12). The extension plates (201) of the upper and lower extension frames (2) are connected to the mounting rods (12) one by one through the second fastening bolts (18). All the mounting rods (12) are fixedly connected to at least two horizontal square tubes (3), and the two horizontal square tubes (3) are distributed in the vertical direction. The wrist arm base (10) is fixedly set on the horizontal square tubes (3).

7. The cantilever arm installation structure for use with lattice steel columns as described in claim 6, characterized in that: The extension plate (201) is fixedly connected to the mounting rod (12) via the connecting plate (9).

8. The cantilever arm installation structure for use with lattice steel columns as described in claim 3, characterized in that: The two extension plates (201) are fixedly connected by a second fixing plate (6), and the second fixing plate (6) and the extension plates (201) are fixedly connected by connecting bolts (13).

9. The cantilever arm installation structure for use with lattice steel columns as described in claim 2, characterized in that: The first fixing plate (5) is fixedly connected to the bearing plate (101) by the first fastening bolt (14). The first fixing plate (5) has a first fixing screw hole, and the bearing plate (101) has a plurality of second fixing screw holes along its length. The first fastening bolt (14) passes through the first fixing screw hole and one of the second fixing screw holes in sequence and is screwed to the first fixing screw hole and the second fixing screw hole in sequence.

10. The cantilever arm installation structure for use with lattice steel columns as described in claim 2, characterized in that: The two frames (1) and the two extension frames (2) are fixedly connected by a number of inclined reinforcing rods (11).

Images