A support hanger

Abstract

This invention provides a pipe support system, relating to the field of pipe support technology. It includes a rod and a movable root. The top of the rod is movably connected to the movable root, which is fixedly connected to the building structure. A pipe clamp is connected to the bottom of the rod. The pipe clamp includes at least two jaws and a triggering device inside. The triggering device is used to activate the jaws from an open position to a closed position. In the open position, the pipe clamp surrounds the pipe; in the closed position, it clamps the pipe. During normal pipe operation, the pipe clamp does not hold the pipe, thus preventing damage caused by the clamp's restriction due to thermal expansion or deformation. When the pipe breaks, or in special circumstances such as abnormal operation of the support system or seismic vibration, the pipe may experience significant displacement, triggering the triggering device to cause the pipe clamp to close and hold the pipe. Subsequent pipe movement is supported by the rod, protecting the pipe from and mitigating abnormal displacement and stress. This pipe support system can effectively reduce the pressure and tearing of thermally expanding pipes under special or accidental conditions.

Description

Technical Field

[0001] This invention relates to the field of pipe support, and in particular to a pipe support bracket. Background Technology

[0002] Traditional gravity supports can offer some resistance and mitigation against vertical seismic forces, meaning they only resist longitudinal waves and have limited seismic performance. Seismic bracing, however, with its unique diagonal bracing structure, can effectively resist and mitigate horizontal seismic forces, i.e., transverse waves. Furthermore, the height of pipes fitted with seismic bracing can be adjusted, effectively resisting seismic forces from other directions and significantly improving the seismic performance of electromechanical facilities.

[0003] For thermal expansion pipes, existing technologies generally use spring supports, such as Chinese patent CN108548012A published on 2018 / 09 / 18.

[0004] However, the use of seismic supports during normal operation can affect the stress on the pipeline. Thermal expansion of pipelines can cause deformation and thermal stress. The addition of supports can change the stress distribution in the pipeline. In special cases, large pipeline deformation can pose safety hazards, such as support failure or pipeline jamming. Large pipeline deformation can lead to pipeline cracking.

[0005] Therefore, thermal expansion pipes cannot be supported by seismic bracing alone, and existing seismic bracing systems cannot prevent adverse situations from occurring. Summary of the Invention

[0006] The purpose of this invention is to provide a support bracket that can fix the position of the pipeline in a timely manner during the normal operation of the pipeline without hindering thermal expansion changes and during earthquake resistance.

[0007] This invention provides a support bracket, including a rod and a movable root. The top of the rod is movably connected to the movable root, and the movable root is fixedly connected to the building structure. A pipe clamp is connected to the bottom of the rod. The pipe clamp includes at least two jaws and has a triggering device inside. The triggering device is used to trigger the jaws from an open position to a closed position. In the open position, the pipe clamp surrounds the pipe, and in the closed position, the pipe clamp holds the pipe.

[0008] Further, the triggering device includes: a connecting shaft connected to the boom, at least two spring clips in opposite directions sleeved on the connecting shaft, with different jaws connected to different spring clips; a lever support rod connected to the connecting shaft; a trigger lever movably connected to the lever support rod, one end of the trigger lever connected to a trigger plate, and the other end connected to a support rod; trigger stops, with each of the different jaws connected to a trigger stop, and each trigger stop abutting against both ends of the support rod; the pipe deformation pushes the trigger plate, causing the other end of the trigger lever to pry the support rod away from the trigger stop, and the jaws clamping the pipe through the spring clips.

[0009] Furthermore, the contact portion of the gripper is provided with a serrated anti-detachment structure.

[0010] Furthermore, the sawtooth anti-detachment structure is provided with a contact circuit, which is connected to an alarm device.

[0011] Furthermore, the movable root is hollow inside, and a movable frame is slidably provided inside the movable root. The top of the hanging rod is inserted into the movable root and fixedly connected to the movable frame.

[0012] Furthermore, a buffer structure is provided between the movable frame and the movable root.

[0013] Furthermore, the buffer structure includes an inwardly convex arc-shaped buffer material located around the inner side of the movable root, and an outwardly convex arc-shaped buffer material located around the outer side of the movable frame, with the protruding end of the outwardly convex arc-shaped buffer material facing the recessed end of the connection between the inwardly convex arc-shaped buffer material and the inner side of the buffer material.

[0014] Furthermore, the hanger includes a middle hanger and a side hanger. The middle hanger is located directly above the pipe, and the side hanger is located on one side of the pipe. The middle hanger is provided with a pipe clamp that clamps the pipe downwards, and the side hanger is provided with a pipe clamp that clamps the pipe to the side.

[0015] Furthermore, the two side hangers are located on both sides of the pipe, and the bottoms of the two side hangers are connected by a bottom hanger, which is equipped with a pipe clamp for clamping the pipe upward.

[0016] Furthermore, a polytetrafluoroethylene plate is provided between the bottom of the movable frame and the movable root.

[0017] In the technical solution of this invention, the pipe clamp connected to the hanger is open and surrounds the pipeline during normal operation, without clamping the pipeline, thereby avoiding damage to the pipeline due to the restriction of the pipe clamp under the influence of thermal expansion or deformation. When the pipeline is damaged, or in special circumstances such as abnormal operation of the support or hanger, or seismic vibration, the pipeline will undergo a large displacement, which will trigger the triggering device, causing the pipe clamp to close and hold the pipeline. Thereafter, the movement of the pipeline is supported by the hanger, protecting the pipeline from and mitigating abnormal displacement and stress. This support or hanger can effectively reduce the compression and tearing of thermally expanding pipelines in special circumstances or accidents. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the triggering device of the present invention;

[0021] Figure 3 This is a schematic diagram of the sawtooth anti-detachment structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the movable root and movable frame structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the movable root and movable frame structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the active root buffer structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the movable frame buffer structure of the present invention;

[0026] Explanation of reference numerals in the attached figures:

[0027] 1-Intermediate hanger, 2-Side hanger, 3-Bottom hanger, 4-Modible root, 401-Modible frame, 402-Bottom steel plate, 403-Top steel plate, 5-Building structure, 6-Pipe clamp, 601-Claw, 7-Trigger device, 701-Connecting shaft, 702-Spring clamp, 703-Lever support rod, 704-Fulcrum, 705-Trigger lever, 706-Trigger plate, 707-Support rod, 708-Trigger stop bar, 8-Serrated anti-detachment structure, 801-Contact circuit, 9-Buffer structure, 901-Inner convex arc-shaped buffer material, 902-Outer convex arc-shaped buffer material, 10-PTFE plate, 11-Pipe. Detailed Implementation

[0028] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting this invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] Example 1

[0032] like Figures 1-7As shown, the present invention provides a support bracket, including a rod and a movable root 4. The top of the rod is movably connected to the movable root 4, and the movable root 4 is fixedly connected to the building structure 5. A pipe clamp 6 is connected to the bottom of the rod. The pipe clamp 6 includes at least two grippers 601. A triggering device 7 is provided inside the pipe clamp 6. The triggering device 7 is used to trigger the grippers 601 from an open position to a closed position. In the open position, the pipe clamp 6 surrounds the pipe 11. In the closed position, the pipe clamp 6 clamps the pipe 11.

[0033] Specifically, in this support frame, the movable root 4 is fixedly connected to the building structure 5, and the top of the hanger is slidably connected and suspended in the movable root 4. When an earthquake occurs, the hanger moves within a limited range of the movable root 4 to support and protect the pipeline 11 against and mitigate seismic forces.

[0034] The pipe clamp 6 is connected to the boom in a manner similar to a trap, and the two jaws 601 form a surrounding posture around the pipe 11, but do not contact or clamp the pipe 11. Instead, they are kept open by the triggering device 7. Under normal circumstances, the pipe 11 is supported by its own structure. For the thermally expanding pipe 11, since the jaws 601 do not clamp it, they will not compress the thermal expansion changes of the pipe 11, thus avoiding damage to the pipe 11. However, when an earthquake occurs, the pipe 11 or the boom will shift due to the seismic force, causing the pipe 11 to contact and push the triggering device 7 to change its posture. This will trigger the two jaws 601 to change to an embracing posture to clamp the pipe 11. Then, the boom and the movable root 4 support and protect the pipe 11 to resist and mitigate the seismic force.

[0035] Example 2

[0036] This embodiment 2 specifically describes the triggering device 7.

[0037] like Figures 1-2 As shown, the triggering device 7 includes: a connecting shaft 701 connected to the boom, at least two spring clips 702 in opposite directions sleeved on the connecting shaft 701, with different grippers 601 connected to different spring clips 702; a lever support rod 703 connected to the connecting shaft 701; a trigger lever 705 movably connected to the lever support rod 703, with one end of the trigger lever 705 connected to a trigger plate 706 and the other end connected to a support rod 707; and trigger stops 708, with trigger stops 708 connected to different grippers 601, and different trigger stops 708 abutting against both ends of the support rod 707; the pipe 11 deforms and pushes the trigger plate 706, causing the other end of the trigger lever 705 to pry the support rod 707 away from the trigger stops 708, and the grippers 601 clamp the pipe 11 through the spring clips 702.

[0038] Specifically, the coupling 701 is vertically connected to the lifting rod, and two spring clips 702 are oppositely oriented and fixedly sleeved on the coupling 701. To allow the two clips 601 to engage with each other when they are closed, one of the clips has a width so that the other clip can contact it when closed. The lever support rod 703 is vertically connected to the coupling 701 and has a fulcrum 704. The trigger lever 705 is movably connected to the lever support rod 703 through the fulcrum 704. For example, the trigger lever 705 can rotate relative to the lever support rod 703 at the fulcrum 704 position. The trigger plate 706 has a suitable area so that the pipe 11 will not touch the trigger plate 706 within the preset displacement range, but will leave the trigger plate 706 once the preset displacement range is reached. When the pipe 11 pushes the trigger plate 706, the other end of the trigger lever 705 prys the support rod 707 under the action of the lever support rod 703. The two ends of the support rod 707 disengage from the contact relationship with the trigger stop rod 708, and then the two grippers 601 lose support and move towards each other in an embracing posture under the action of the spring clamp 702, clamping the pipe 11.

[0039] Example 3

[0040] like Figure 3 As shown, the contact part of the gripper 601 is provided with a serrated anti-detachment structure 8.

[0041] Specifically, the two grippers 601 have an arc-shaped structure with pointed ends. When they clamp together, the ends partially contact each other. The outer gripper 601 has inclined serrations on its inner side, and the inner gripper 601 has inclined serrations on its outer side. The serrations mesh with each other, preventing the contact points from disengaging on their own. This provides stable clamping for the pipe 11, preventing the pipe clamp 6 from detaching from the pipe 11 under seismic forces.

[0042] Example 4

[0043] like Figure 3 As shown, the sawtooth anti-detachment structure 8 is equipped with a contact circuit 801, which is connected to an alarm device.

[0044] Specifically, the serrated contact surfaces of the two grippers 601 are connected to the circuit. When the two grippers 601 close together and the serrations mesh, the circuit is connected, causing the alarm device to sound an alarm. This allows for quick identification of the specific location of the drastic change in the pipeline 11, enabling timely repairs after the earthquake or preventing leakage of the pipeline 11 by shutting off the upstream and downstream valves at that location.

[0045] Example 5

[0046] like Figure 1 and Figures 4-7As shown, the movable root 4 is hollow inside, and a movable frame 401 is slidably mounted inside the movable root 4. The top of the hanging rod is inserted into the movable root 4 and fixedly connected to the movable frame 401. A buffer structure 9 is provided between the movable frame 401 and the movable root 4. The buffer structure 9 includes an inwardly convex arc-shaped buffer material 901 located around the inner periphery of the movable root 4, and an outwardly convex arc-shaped buffer material 902 located around the outer periphery of the movable frame 401. The protruding end of the outwardly convex arc-shaped buffer material 902 faces the recessed end at the connection point of the inwardly convex arc-shaped buffer material 901. A polytetrafluoroethylene plate 10 is provided between the bottom of the movable frame 401 and the movable root.

[0047] Specifically, the active root 4 includes a square frame surrounded by steel sections, with the bottom closed by welding steel plates to form a hollow structure. The surrounding steel sections are fixedly connected to the building structure 5, for example, by pre-embedding. The bottom steel plate 402 has holes for inserting the top of the hanger rod and allowing the hanger rod to move within a certain range. The size of the holes corresponds to the allowable deformation of the pipe 11.

[0048] The movable frame 401 also includes a square frame surrounded by steel sections, with the top closed by welding a steel plate. A structure for connecting the top of the suspension rod can be provided on the top steel plate 403, for example, by welding the top steel plate 403 of the movable frame 401 to the top of the suspension rod, or by connecting the top steel plate 403 with nuts and washers. The entire movable frame 401 is located within the movable root 4 and slides on the bottom steel plate 402 of the movable root 4. A polytetrafluoroethylene (PTFE) plate 10 is provided around the bottom of the movable frame 401 to improve the smoothness of its sliding within the movable root 4.

[0049] The buffer material can flexibly prevent the pipe 11 from shifting. Various elastic buffer materials available in the prior art can be used, such as rubber, which has a certain degree of elasticity and can withstand impact. As long as it can achieve a buffering and energy-absorbing effect, its specific composition will not be elaborated further. The buffer material is not only provided on the inner side of the movable root 4 but also on the outer side of the movable frame 401, and both have a convex arc-shaped structure. The inner convex arc-shaped buffer material 901 of the movable root 4 forms a concave corner area at the connection point. The outer convex arc-shaped buffer material 902 of the movable frame 401 is opposite to this concave corner area, so that the support and hanger only shift within a certain range and will not rotate.

[0050] Example 6

[0051] like Figure 1 As shown, the hanger includes a middle hanger 1 and side hangers 2. The middle hanger 1 is located directly above the pipe 11, and the side hangers 2 are located on one side of the pipe 11. The middle hanger 1 is equipped with a pipe clamp 6 that clamps the pipe 11 downwards, and the side hangers 2 are equipped with a pipe clamp 6 that clamps the pipe 11 to the side. The two side hangers 2 are located on both sides of the pipe 11, and their bottoms are connected by a bottom hanger 3. The bottom hanger 3 is equipped with a pipe clamp 6 that clamps the pipe 11 upwards.

[0052] Specifically, four pipe clamps 6 are installed around the pipe 11 to ensure that the pipe clamps 6 in the corresponding direction can be triggered to hug the pipe 11 regardless of the direction in which the pipe 11 is displaced. Correspondingly, three movable roots 4 are provided at equal intervals on the building structure 5, which are used to connect the intermediate hanger 1 and the two side hangers 2 respectively. The pipe clamp 6 connected to the bottom of the intermediate hanger 1 is located above the pipe 11, and the pipe clamps 6 connected to the middle of the two side hangers 2 are located on both sides of the pipe 11. The bottom ends of the two side hangers 2 are connected through the bottom hanger 3, and the bottom hanger 3 is connected to the upward-facing pipe clamps 6, so that the four pipe clamps 6 surround the entire pipe 11.

[0053] The working principle of this hanger:

[0054] The support rod 707 is engaged between the trigger stop rods 708, and the pipe clamps 6 open, with the four pipe clamps 6 surrounding the pipe 11. When the pipe 11 deforms significantly, it shifts and hits the trigger plate 706, which in turn causes the support rod 707 to lift and disengage from the trigger stop rods 708 via the trigger lever 705. With the trigger stop rods 708 no longer supported by the support rods 707, the spring clamp 702 combines the two side grippers 601 to hold the pipe 11, and the serrated anti-disengagement structure 8 locks the pipe clamps 6 in place, preventing them from opening. The contact circuit 801 on the serrated surface is activated, and the alarm device sounds, alerting the operators.

[0055] The displacement of pipe 11 is transmitted to the movable root 4 via the hanger. The cushioning material flexibly prevents the displacement, thus preventing excessive deformation of pipe 11. The movable frame 401 and the movable root 4 slide using a polytetrafluoroethylene plate, which has a low coefficient of friction and no rigid connection. This ensures that the pipe can withstand strong impacts during earthquakes or other special circumstances, and prevents other rigid structures from failing due to impact.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A support bracket, characterized in that, It includes a boom and a movable root. The top of the boom is movably connected to the movable root, and the movable root is fixedly connected to the building structure. The bottom of the boom is connected to a pipe clamp, which includes at least two jaws and a triggering device inside the pipe clamp. The triggering device is used to trigger the jaws from an open position to an embracing position. The pipe clamp is positioned in an open state and surrounds the outside of the pipe; the pipe clamp is positioned in a closed state and holds the pipe. The triggering device includes: A coupling is connected to the boom, and at least two spring clips in opposite directions are sleeved on the coupling, with different clips connected to different spring clips; A lever support rod is connected to the coupling shaft; A trigger lever is movably connected to the lever support rod, with one end of the trigger lever connected to a trigger plate and the other end connected to a support rod; A trigger stop lever is connected to each of the different grippers, and the different trigger stop levers abut against both ends of the support rod. The pipeline will not touch the trigger plate within the preset displacement range. When the pipeline reaches the preset displacement range, the trigger plate will be triggered. When the pipeline pushes the trigger plate, the other end of the trigger lever pries the support rod under the action of the lever support rod. The two ends of the support rod disengage from the contact relationship with the trigger stop rod, and then the two jaws lose support. Under the action of the spring clamp, they move towards each other to form an embracing posture and clamp the pipeline.

2. The support bracket according to claim 1, characterized in that, The contact portion of the gripper is equipped with a serrated anti-detachment structure.

3. The support bracket according to claim 2, characterized in that, The sawtooth anti-detachment structure is equipped with a contact circuit, which is connected to an alarm device.

4. The support and hanger according to claim 1, characterized in that, The movable root is hollow inside, and a movable frame is slidably provided inside the movable root. The top of the hanging rod is inserted into the movable root and fixedly connected to the movable frame.

5. The support bracket according to claim 4, characterized in that, A buffer structure is provided between the movable frame and the movable root.

6. The support bracket according to claim 5, characterized in that, The buffer structure includes an inwardly convex arc-shaped buffer material located around the inner side of the movable root, and an outwardly convex arc-shaped buffer material located around the outer side of the movable frame, with the protruding end of the outwardly convex arc-shaped buffer material facing the recessed end of the connection between the inwardly convex arc-shaped buffer material and the inner side.

7. The support and hanger according to claim 1, characterized in that, The hanger includes a middle hanger and a side hanger. The middle hanger is located directly above the pipe, and the side hanger is located on one side of the pipe. The middle hanger is equipped with a pipe clamp that clamps the pipe downwards, and the side hanger is equipped with a pipe clamp that clamps the pipe to the side.

8. The support bracket according to claim 7, characterized in that, The two side hangers are located on both sides of the pipe, and the bottoms of the two side hangers are connected by a bottom hanger. The bottom hanger is equipped with a pipe clamp that clamps the pipe upward.

9. The support bracket according to claim 4, characterized in that, A polytetrafluoroethylene plate is provided between the bottom of the movable frame and the movable root.

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