A new type of combination support structure for a bailey truss

Abstract

This utility model discloses a novel combined support structure for Bailey bridges, relating to the field of Bailey bridge support technology. It includes: multiple support bases, each with a support rod, a crossbar, a connecting frame, and a support frame arranged sequentially on its top; and a tensioning mechanism disposed inside the connecting frame for tensioning the connecting frame. The tensioning mechanism includes a connecting cable, a fixing component, and an adjusting component. The fixing component is disposed outside the crossbar for securing the connecting cable, and the adjusting component is disposed inside the connecting frame. This utility model, through the arrangement of the connecting cable, fixing component, and adjusting component, achieves increased strength during large-span applications through the cooperation of the connecting cable, fixing rod, connecting block, rotating block, adjusting rod, nut, mounting sleeve, fixing bolt, and adjusting block. This prevents a corresponding increase in mid-span deflection as the span increases, thus avoiding reduced stability under load.

Description

Technical Field

[0001] This utility model relates to the field of Bailey bridge support technology, and specifically to a novel combined support structure for Bailey bridges. Background Technology

[0002] In the field of civil engineering construction, continuous beam bridges are widely used due to their strong adaptability and convenient construction. The essential basic construction equipment for continuous beam bridge construction is the load-bearing support. In many sections, due to terrain or traffic requirements, it is necessary to erect non-grounded supports. Non-grounded supports generally adopt the form of steel or Bailey beam supports. Steel supports have a smaller span and lower adaptability, and are only suitable for small spans.

[0003] Bailey bridges are widely used due to their good load-bearing structure and convenient assembly method. However, in some large-span construction applications, such as crossing large rivers, valleys, or highways and railways, the characteristics of simply supported beam structures lead to an increase in mid-span deflection as the span increases, resulting in reduced stability under load. Therefore, a new type of combined support structure for Bailey bridges is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that as the span increases, the mid-span deflection also increases, leading to a decrease in stability when bearing load. This utility model provides a new type of combined support structure for Bailey bridges.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A novel Bailey bridge composite support structure includes:

[0007] A support base, wherein there are multiple support bases, and the top of each support base is provided with a support rod, a crossbar, a connecting frame and a support frame in sequence;

[0008] A pulling mechanism is installed inside the connecting frame and is used to pull the connecting frame. The pulling mechanism includes a connecting cable, a fixing component, and an adjusting component. The fixing component is installed on the outside of the crossbar and is used to fix the connecting cable. The adjusting component is installed inside the connecting frame and is used to connect the connecting frame and the connecting cable. The connecting cable, the fixing component, and the adjusting component work together to provide tension to the connecting frame.

[0009] Furthermore, the connecting frame is also provided with connecting rods, and there are multiple connecting rods.

[0010] Furthermore, the fixing component includes multiple fixing rods, each fixed rod is connected to a crossbar, and each fixing rod corresponds to a support rod. A rotating block is provided at the top of each fixing rod, and a connecting shaft is provided on the outer side of the rotating block, rotating inside the fixing rod. A connecting block is provided inside the fixing rod, and an adjusting rod is slidably connected inside the rotating block, with the sliding direction of the adjusting rod perpendicular to the axis of the rotating block. A nut is provided on the outer side of the adjusting rod, and the nut is connected to the rotating block. Both ends of the connecting cable are connected to the adjusting rod and the connecting block, respectively.

[0011] Furthermore, the adjusting component includes a mounting sleeve disposed on the outside of the connecting rod. A fixing bolt is also provided inside the mounting sleeve. The fixing bolt is provided on the side of the mounting sleeve relative to the fixing rod, and the fixing bolt rotates relative to the mounting sleeve. An adjusting block and a roller are provided in sequence at the end of the fixing bolt. The roller rotates inside the adjusting block, and the connecting cable slides inside the adjusting block.

[0012] Furthermore, the fixing bolt has a sliding groove and a guide groove respectively at the end opposite to the adjusting block. There are multiple guide grooves. A sliding rod and a guide rod are slidably connected inside the sliding groove and the guide groove, and the sliding rod and the guide rod are connected to the adjusting block. A threaded rod is threaded inside the sliding rod, and one end of the threaded rod is connected to the fixing bolt.

[0013] Furthermore, a control block is provided on the outside of the fixing bolt, the control block rotates inside the fixing bolt, and multiple slots are provided on the outside of the fixing bolt.

[0014] The beneficial effects of this utility model are as follows:

[0015] This utility model, through the arrangement of connecting cables, fixing parts, and adjusting parts, achieves increased strength during use when the span is large, by cooperating with connecting cables, fixing rods, connecting blocks, rotating blocks, adjusting rods, nuts, mounting sleeves, fixing bolts, and adjusting blocks. This avoids the situation where the mid-span deflection increases with the increase of the span, which would lead to a decrease in stability when bearing loads. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is an enlarged view of the connecting frame of this utility model;

[0018] Figure 3 This is an enlarged view of the fixing rod of this utility model;

[0019] Figure 4 This is an enlarged view of the adjusting component of this utility model;

[0020] Figure 5This is a partial sectional view of the fixing bolt of this utility model;

[0021] Reference numerals: 1. Support base; 101. Support rod; 102. Crossbar; 2. Connecting frame; 201. Connecting rod; 3. Support frame; 4. Connecting cable; 5. Fixing component; 501. Fixing rod; 502. Connecting block; 503. Rotating block; 504. Connecting shaft; 505. Adjusting rod; 506. Nut; 6. Adjusting component; 601. Mounting sleeve; 602. Fixing bolt; 603. Adjusting block; 604. Sliding groove; 605. Guide groove; 606. Guide rod; 607. Sliding rod; 608. Threaded rod; 609. Roller. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0026] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] like Figures 1 to 5 As shown, a novel Bailey bridge truss combined support structure includes: a support base 1, of which there are multiple support bases 1, and the top of each support base 1 is sequentially provided with a support rod 101, a crossbar 102, a connecting frame 2, and a support frame 3; a traction mechanism, disposed inside the connecting frame 2, for traction of the connecting frame 2, the traction mechanism including a connecting cable 4, a fixing member 5, and an adjusting member 6, the fixing member 5 being disposed outside the crossbar 102 for fixing the connecting cable 4, the adjusting member 6 being disposed inside the connecting frame 2 for connecting the connecting frame 2 and the connecting cable 4, and the connecting cable 4 and the fixing member 5 cooperating with the adjusting member 6. The connecting frame 2 is provided with tension. Specifically, during use, the connecting cable 4, the fixing part 5 and the adjusting part 6 cooperate to provide tension to the middle part of the connecting frame 2, ensuring the strength of the connecting frame 2 during use. The height of the support rod 101 can be adjusted according to actual use requirements to ensure the flatness of the connecting frame 2 during use. The connecting cable 4 is woven from multiple tensile steel strands to ensure the stability of the connecting cable 4 during use. The length of the connecting cable 4 can be selected according to actual use requirements. The connecting frame 2 is existing technology and will not be explained in detail here.

[0028] like Figures 1 to 5 As shown, the connecting frame 2 is also provided with connecting rods 201 inside, and there are multiple connecting rods 201. Specifically, during use, the connecting rods 201 increase the stability of the connecting frame 2 during use. The connecting rods 201 and the support base 1 can be connected by welding or pins.

[0029] like Figures 1 to 5As shown, the fixing component 5 includes multiple fixing rods 501. Each fixing rod 501 is connected to a crossbar 102, and each fixing rod 501 corresponds to a support rod 101. A rotating block 503 is located at the top of each fixing rod 501. A connecting shaft 504 is located on the outside of the rotating block 503, and the connecting shaft 504 rotates inside the fixing rod 501. A connecting block 502 is located inside the fixing rod 501. An adjusting rod 505 is slidably connected inside the rotating block 503, and the sliding direction of the adjusting rod 505 is perpendicular to the axis of the rotating block 503. A nut 506 is located on the outside of the adjusting rod 505, and the nut 506 is connected to the rotating block 503. The two ends of the connecting cable 4 are respectively connected to the adjusting rod 505 and... The connecting block 502 is connected in the following ways: the fixed rod 501 and the crossbar 102 can be connected by welding or bolts to ensure that the fixed rod 501 can stably provide tension to the connecting cable 4 during use. During use, the two ends of the connecting cable 4 are fixed by the cooperation of the connecting block 502 and the rotating block 503, ensuring that the connecting cable 4 can pull the middle of the connecting frame 2 with the adjusting component 6. The nut 506 can control the adjusting rod 505 to slide inside the rotating block 503. During the sliding of the adjusting rod 505, the tension of the connecting cable 4 can be adjusted to ensure that the connecting cable 4 can stably provide tension to the connecting frame 2 during use.

[0030] like Figures 1 to 5 As shown, the adjusting component 6 includes a mounting sleeve 601, which is disposed on the outside of the connecting rod 201. A fixing bolt 602 is also provided inside the mounting sleeve 601. The fixing bolt 602 is located on the side of the mounting sleeve 601 opposite to the fixing rod 501, and the fixing bolt 602 rotates relative to the mounting sleeve 601. An adjusting block 603 and a roller 609 are sequentially provided at the end of the fixing bolt 602. The roller 609 rotates inside the adjusting block 603, and the connecting cable 4 slides inside the adjusting block 603. Specifically, during use, the adjusting component 601 and the connecting rod 201 are adjusted... The adjusting block 603 is connected to the connecting frame 2 to ensure that the connecting cable 4 can stably pull the connecting frame 2 through the adjusting block 603. When the connecting frame 2 is erected with a large span, the number of mounting sleeves 601 and adjusting blocks 603 is increased to ensure the overall strength of the connecting frame 2 during use. When adding multiple mounting sleeves 601 and adjusting blocks 603, they are arranged along the length of the connecting frame 2. The roller 609 can block the connecting cable 4 from the adjusting block 603 during use, thereby reducing the friction between the connecting cable 4 and the adjusting block 603 during use.

[0031] like Figures 1 to 5As shown, the fixing bolt 602 has a sliding groove 604 and a guide groove 605 respectively at the end opposite to the adjusting block 603. There are multiple guide grooves 605. A sliding rod 607 and a guide rod 606 are slidably connected inside the sliding groove 604 and the guide groove 605, respectively. The sliding rod 607 and the guide rod 606 are connected to the adjusting block 603. A threaded rod 608 is threaded inside the sliding rod 607, and one end of the threaded rod 608 is connected to the fixing bolt 602. Specifically, during use, the distance between the adjusting block 603 and the fixing bolt 602 is adjusted by rotating the threaded rod 608, thereby further increasing the tension adjustment range of the connecting cable 4. The guide groove 605, together with the guide rod 606, guides the movement direction of the adjusting block 603 to ensure the stability of the adjusting block 603 during movement.

[0032] like Figures 1 to 5 As shown, a control block is provided on the outside of the fixing bolt 602. The control block rotates inside the fixing bolt 602. The fixing bolt 602 has slots on its outside, and there are multiple slots. Specifically, during use, the tool is first inserted into the slot, and then the tool drives the control block and the threaded rod 608 to rotate. During the rotation, the threaded rod 608, together with the sliding rod 607, drives the adjusting block 603 to move in position.

[0033] like Figures 1 to 5 As shown, the working state of this novel Bailey bridge combined support structure is as follows: During the use of the connecting frame 2, the fixing part 5 and the adjusting part 6 are first installed inside the crossbar 102 and the connecting frame 2 respectively. Then, the fixing part 5 and the adjusting part 6 are connected by the connecting cable 4, so that the connecting cable 4 provides tension to the connecting frame 2, ensuring the strength of the connecting frame 2 during use.

[0034] In summary, this utility model includes: a support base 1, of which there are multiple support bases 1, and the top of each support base 1 is sequentially provided with a support rod 101, a crossbar 102, a connecting frame 2, and a support frame 3; a pulling mechanism, disposed inside the connecting frame 2, for pulling the connecting frame 2, the pulling mechanism including a connecting cable 4, a fixing member 5, and an adjusting member 6, the fixing member 5 being disposed outside the crossbar 102 for fixing the connecting cable 4, and the adjusting member 6 being disposed inside the connecting frame 2 for connecting the connecting frame 2 and the connecting cable 4, and the connecting cable... 4. The fixing component 5, together with the adjusting component 6, provides tension to the connecting frame 2. This utility model, through the setting of the connecting cable 4, the fixing component 5, and the adjusting component 6, achieves the cooperation of the connecting cable 4, the fixing rod 501, the connecting block 502, the rotating block 503, the adjusting rod 505, the nut 506, the mounting sleeve 601, the fixing bolt 602, and the adjusting block 603, thereby increasing the strength during use when the span is large, and avoiding the increase of mid-span deflection as the span increases, which would lead to a decrease in stability when bearing load.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel combined support structure for Bailey bridges, characterized in that, include: A support base, wherein there are multiple support bases, and the top of each support base is provided with a support rod, a crossbar, a connecting frame and a support frame in sequence; A pulling mechanism is installed inside the connecting frame and is used to pull the connecting frame. The pulling mechanism includes a connecting cable, a fixing component, and an adjusting component. The fixing component is installed on the outside of the crossbar and is used to fix the connecting cable. The adjusting component is installed inside the connecting frame and is used to connect the connecting frame and the connecting cable. The connecting cable, the fixing component, and the adjusting component work together to provide tension to the connecting frame.

2. The novel Bailey bridge combined support structure according to claim 1, characterized in that, The connecting frame also has connecting rods inside, and there are multiple connecting rods.

3. The novel Bailey bridge combined support structure according to claim 1, characterized in that, The fixing component includes multiple fixing rods, each connected to a crossbar, and each fixing rod corresponds to a support rod. A rotating block is located at the top of each fixing rod, and a connecting shaft is located on the outer side of the rotating block, rotating inside the fixing rod. A connecting block is located inside the fixing rod, and an adjusting rod is slidably connected inside the rotating block, with the sliding direction of the adjusting rod perpendicular to the axis of the rotating block. A nut is located on the outer side of the adjusting rod and connected to the rotating block. Both ends of the connecting cable are connected to the adjusting rod and the connecting block, respectively.

4. The novel Bailey bridge combined support structure according to claim 2, characterized in that, The adjusting component includes a mounting sleeve disposed on the outside of the connecting rod. A fixing bolt is also provided inside the mounting sleeve. The fixing bolt is provided on the side of the mounting sleeve relative to the fixing rod and rotates relative to the mounting sleeve. An adjusting block and a roller are provided in sequence at the end of the fixing bolt. The roller rotates inside the adjusting block and the connecting cable slides inside the adjusting block.

5. The novel Bailey bridge combined support structure according to claim 4, characterized in that, The fixing bolt has a sliding groove and a guide groove respectively at the end opposite to the adjusting block. There are multiple guide grooves. A sliding rod and a guide rod are slidably connected inside the sliding groove and the guide groove, and the sliding rod and the guide rod are connected to the adjusting block. A threaded rod is threaded inside the sliding rod, and one end of the threaded rod is connected to the fixing bolt.

6. The novel Bailey bridge combined support structure according to claim 5, characterized in that, The fixing bolt has a control block on its outer side, which rotates inside the fixing bolt. The fixing bolt has multiple slots on its outer side.

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