A subspan pipe fixing device

Abstract

This utility model relates to the field of lower chord pipe technology and discloses a lower chord pipe fixing device, including a lower chord pipe fixing frame. The top of the lower chord pipe fixing frame is fixedly connected to a first steel cable ring, and a fixing steel wire is movably sleeved inside the first steel cable ring. A drainage slot is opened at the top of the lower chord pipe fixing frame, and a lower chord pipe fixing ring is fixedly connected to the bottom of the drainage slot. The lower chord pipe is movably sleeved inside the lower chord pipe fixing ring, and a fixing connecting frame is fixedly connected to the top of the lower chord pipe fixing frame. This utility model uses a drainage slot opened on the outside of the fixing frame at an inclined angle of 15° to quickly drain rainwater or condensate accumulated at the top, preventing water stains from forming liquid at the connection between the fixing frame and the lower chord pipe. This reduces the corrosion rate of metal parts, ensures the long-term stable fitting accuracy of the lower chord pipe fixing ring and the lower chord pipe, avoids loosening or jamming caused by corrosion, and further ensures the structural reliability of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of lower chord pipe technology, and more specifically to a lower chord pipe fixing device. Background Technology

[0002] In traditional pipeline engineering, the fixing of lower chord pipes often relies on rigid supports or simple hoisting structures, which have significant technical limitations. Existing fixing devices generally lack adaptability to dynamic factors such as thermal expansion and contraction of pipelines, fluid pulsation, and external vibrations, leading to problems such as stress concentration and loosening of connections in the pipeline system. Especially in application scenarios such as long-span bridges and industrial plants, traditional fixing methods are unable to meet the stability requirements of pipelines under complex working conditions.

[0003] In traditional designs, the lower chord pipe fixing device is prone to wear or deformation at the connection points due to long-term exposure to pipe vibration, gravity loads and environmental corrosion. This can lead to loosening of the fixing structure, which can increase the gap between the lower chord pipe and the fixing device, causing pipe shaking, abnormal noises, and even the risk of falling off under strong winds or impact loads, creating serious safety hazards.

[0004] In the use of traditional pipe fixing devices, rainwater can cause water stains to accumulate at the connection between the fixing frame and the pipe, reducing the corrosion rate of metal parts and thus shortening the service life of the equipment. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a lower chord pipe fixing device to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a lower chord pipe fixing device, including a lower chord pipe fixing frame, a first steel cable ring fixedly connected to the top of the lower chord pipe fixing frame, a fixing steel wire movably sleeved inside the first steel cable ring, a drainage slot opened at the top of the lower chord pipe fixing frame, a lower chord pipe fixing ring fixedly connected to the bottom of the drainage slot, and a lower chord pipe movably sleeved inside the lower chord pipe fixing ring.

[0007] Furthermore, a fixed connecting frame is fixedly connected to the top of the lower chord tube fixing frame, and a secondary connecting rod is fixedly sleeved inside the fixed connecting frame, and a secondary rod bolt is movably sleeved inside the secondary connecting rod.

[0008] Furthermore, the main connecting rod is movably sleeved inside the auxiliary rod bolt, and the main connecting rod is movably sleeved inside the main rod bolt.

[0009] Furthermore, a second steel cable ring is externally fixedly connected to the secondary connecting rod.

[0010] Furthermore, the top of the secondary connecting rod is fixedly connected to the upper chord pipe, the bottom of the upper chord pipe is fixedly connected to the main connecting rod, and the bottom of the upper chord pipe is fixedly connected to the third steel cable ring.

[0011] Furthermore, the bottom of the lower chord tube fixing bracket is fixedly connected to the lower chord tube docking bracket, and the bottom of the lower chord tube docking bracket is movably connected to the lower chord tube support plate.

[0012] Furthermore, the internal movable sleeve support plate fixing bolts of the lower chord tube docking frame.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. In this utility model, after the first steel cable ring installed on the outside of the lower chord pipe fixing frame is connected to the fixing wire, the upper chord pipe, the fixing frame and the auxiliary connecting rod form a triangular tie structure. The pre-tightening force of the steel wire makes the force on each component balanced, improves the overall anti-lateral stiffness, and significantly enhances the stability of the equipment.

[0015] 2. This utility model features a drainage slit on the outside of the fixing frame at a 15° angle, which can quickly drain rainwater or condensate accumulated at the top, preventing water stains from forming at the connection between the fixing frame and the lower chord pipe. This reduces the corrosion rate of metal parts, ensures the long-term stability of the fitting accuracy between the lower chord pipe fixing ring and the lower chord pipe, avoids loosening or jamming caused by corrosion, and further guarantees the structural reliability of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the upper chord pipe structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the lower chord tube fixing bracket structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the lower chord tube docking frame structure of this utility model.

[0020] The attached diagram is labeled as follows: 1. Lower chord pipe fixing bracket; 2. First steel cable ring; 3. Fixing steel wire; 4. Drainage seam; 5. Lower chord pipe fixing ring; 6. Lower chord pipe; 101. Fixing connecting bracket; 102. Secondary connecting rod; 103. Secondary rod bolt; 104. Main connecting rod; 105. Main rod bolt; 106. Second steel cable ring; 107. Upper chord pipe; 108. Third steel cable ring; 201. Lower chord pipe connecting bracket; 202. Lower chord pipe support plate; 203. Support plate fixing bolt. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The lower chord pipe fixing device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figure 1-4 This utility model provides a lower chord pipe fixing device, including a lower chord pipe fixing bracket 1. A first steel cable ring 2 is fixedly connected to the top of the lower chord pipe fixing bracket 1. A fixing steel wire 3 is movably sleeved inside the first steel cable ring 2. A drainage slot 4 is opened at the top of the lower chord pipe fixing bracket 1. A lower chord pipe fixing ring 5 is fixedly connected to the bottom of the drainage slot 4. A lower chord pipe 6 is movably sleeved inside the lower chord pipe fixing ring 5. This facilitates the formation of a triangular tie structure between the upper chord pipe 107, the fixing bracket 1, and the auxiliary connecting rod 102 after the first steel cable ring 2 installed outside the lower chord pipe fixing bracket 1 is sleeved with the fixing steel wire 3. The pre-tension of the steel wire ensures that the force on each component is balanced, thereby improving the overall lateral stiffness. This design significantly enhances equipment stability. Simultaneously, the drainage seam 4 on the outside of the mounting bracket 1 is inclined at 15°, allowing for rapid drainage of accumulated rainwater or condensate from the top. This prevents water from pooling at the connection between the mounting bracket and the lower chord pipe 6, reducing the corrosion rate of metal components and ensuring long-term stable fit between the lower chord pipe fixing ring 5 and the lower chord pipe 6. It also prevents loosening or jamming due to corrosion, further guaranteeing the structural reliability of the equipment. This structure, through a dual design of "mechanical reinforcement + drainage protection," not only improves the equipment's resistance to deformation but also extends the service life of components, making it particularly suitable for pipe support systems in damp outdoor environments.

[0023] In a preferred embodiment, a fixed connecting frame 101 is fixedly connected to the top of the lower chord tube fixing frame 1. The inner part of the fixed connecting frame 101 is fixedly sleeved with a secondary connecting rod 102, and the inner part of the secondary connecting rod 102 is movably sleeved with a secondary rod bolt 103. This facilitates fixing the upper chord tube 107 connected to the secondary connecting rod 102 to the fixed connecting frame 101 through the secondary rod bolt 103 installed on the fixed connecting frame 101.

[0024] In a preferred embodiment, the main connecting rod 104 is movably sleeved inside the auxiliary rod bolt 103, and the main connecting rod 104 is movably sleeved inside the main rod bolt 105. This facilitates the fixing of the main connecting rod 104 sleeved inside the fixed connecting frame 101 by the main rod bolt 105, thereby connecting and fixing the upper chord pipe 107 to the fixed connecting frame 101.

[0025] In a preferred embodiment, the external fixed connection of the secondary connecting rod 102 with the second steel cable ring 106 is beneficial for fixing the steel wire 3 by using the second steel cable ring 106 installed on the external side of the secondary connecting rod 102. In case of structural loosening or detachment due to accidents, the second steel cable ring 106 can firmly lock the end of the fixing steel wire 3, and the tension of the fixing steel wire 3 forms a secondary load-bearing support, preventing the metal frame from falling completely, playing a key safety protection role, and greatly reducing the risk of equipment damage and personal injury.

[0026] In a preferred embodiment, the top of the secondary connecting rod 102 is fixedly connected to the upper chord pipe 107, the bottom of the upper chord pipe 107 is fixedly connected to the main connecting rod 104, and the bottom of the upper chord pipe 107 is fixedly connected to the third steel cable ring 108. This design facilitates the improvement of the overall deformation resistance of the upper chord pipe 107 through multiple reinforcements. Even if a single connecting rod suffers minor damage, the remaining structures can still maintain system stability, significantly enhancing the safety and durability of the equipment under complex working conditions.

[0027] In a preferred embodiment, the bottom of the lower chord pipe fixing bracket 1 is fixedly connected to the lower chord pipe docking bracket 201, and the bottom of the lower chord pipe docking bracket 201 is movably connected to the lower chord pipe support plate 202, which facilitates docking and fixing of two lower chord pipes through the lower chord pipe docking bracket 201.

[0028] In a preferred embodiment, the internal movable sleeve of the lower chord tube connecting bracket 201 is connected to the plate fixing bolt 203, which facilitates the control of the lower chord tube plate 202 to close at the bottom of the lower chord tube connecting bracket 201 by the plate fixing bolt 203, thereby fixing it.

[0029] The working principle of this utility model is as follows: After the first steel cable ring 2 installed on the outside of the lower chord pipe fixing device is connected to the fixing wire 3, the upper chord pipe 107, the fixing frame 1 and the auxiliary connecting rod 102 form a triangular tie structure. The pre-tightening force of the steel wire makes the force on each component balanced, and the overall anti-lateral stiffness is improved, which significantly enhances the stability of the equipment. At the same time, the drainage seam 4 opened on the outside of the fixing frame 1 is inclined at an angle of 15°, which can quickly drain the rainwater or condensate accumulated at the top, avoid water stains forming liquid at the connection between the fixing frame and the lower chord pipe 6, reduce the corrosion rate of metal components, ensure the long-term stable fitting accuracy of the lower chord pipe fixing ring 5 and the lower chord pipe 6, avoid loosening or jamming caused by corrosion, and further ensure the structural reliability of the equipment. This structure, through the dual design of "mechanical reinforcement + drainage protection", not only improves the deformation resistance of the equipment, but also extends the service life of the components, and is especially suitable for pipe support systems in outdoor humid environments.

[0030] The upper chord pipe 107 connected to the auxiliary connecting rod 102 is fixed to the fixed connecting frame 101 by the auxiliary rod bolt 103 installed in the fixed connecting frame 101. The main connecting rod 104, which is sleeved inside the fixed connecting frame 101, is fixed by the main rod bolt 105, thereby connecting and fixing the upper chord pipe 107 to the fixed connecting frame 101. The second steel cable ring 106 installed on the outside of the auxiliary connecting rod 102 is used to fix the steel wire 3. In case the structure becomes loose or falls off due to accident, the second steel cable ring 106 can firmly lock the end of the fixing steel wire 3. The tension of the fixing steel wire 3 forms a secondary load-bearing support, preventing the metal frame from falling completely. It plays a key safety protection role and greatly reduces the risk of equipment damage and personal injury.

[0031] The multiple reinforcement design improves the overall deformation resistance of the upper chord pipe 107. Even if a single connecting rod is slightly damaged, the rest of the structure can still maintain the stability of the system, which significantly enhances the safety and durability of the equipment under complex working conditions. The two lower chord pipes are connected and fixed by the lower chord pipe docking bracket 201. The bracket fixing bolt 203 controls the lower chord pipe bracket 202 to close at the bottom of the lower chord pipe docking bracket 201, thereby fixing it.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0033] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0034] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lower chord pipe fixing device comprising a lower chord pipe fixing frame (1), characterized in that: The top of the lower chord tube fixing bracket (1) is fixedly connected to the first steel cable ring (2), and the inside of the first steel cable ring (2) is movably sleeved with a fixing steel wire (3). The top of the lower chord tube fixing bracket (1) is provided with a drainage slot (4), and the bottom of the drainage slot (4) is fixedly connected to the lower chord tube fixing ring (5). The inside of the lower chord tube fixing ring (5) is movably sleeved with the lower chord tube (6).

2. A downcomer retainer as set forth in claim 1, characterized in that: The top of the lower chord tube fixing bracket (1) is fixedly connected to a fixing connecting bracket (101), and the internal of the fixing connecting bracket (101) is fixedly sleeved with a secondary connecting rod (102), and the internal of the secondary connecting rod (102) is movably sleeved with a secondary rod bolt (103).

3. The lower chord pipe fixing device according to claim 2, characterized in that: The main connecting rod (104) is movably sleeved inside the auxiliary rod bolt (103), and the main connecting rod (104) is movably sleeved inside the main rod bolt (105).

4. The lower chord pipe fixing device according to claim 2, characterized in that: The second steel cable ring (106) is externally fixedly connected to the secondary connecting rod (102).

5. A lower chord pipe fixing device according to claim 2, characterized in that: The top of the secondary connecting rod (102) is fixedly connected to the upper chord pipe (107), the bottom of the upper chord pipe (107) is fixedly connected to the main connecting rod (104), and the bottom of the upper chord pipe (107) is fixedly connected to the third steel cable ring (108).

6. The lower chord pipe fixing device according to claim 1, characterized in that: The bottom of the lower chord tube fixing bracket (1) is fixedly connected to the lower chord tube docking bracket (201), and the bottom of the lower chord tube docking bracket (201) is movably connected to the lower chord tube support plate (202).

7. A lower chord pipe fixing device according to claim 6, characterized in that: The internal movable sleeve mounting plate fixing bolt (203) of the lower chord tube docking frame (201) is connected to the bolt.

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