Variable spring hanger

Abstract

The utility model relates to the technical field of pipeline construction, and particularly discloses a variable spring hanger which comprises an outer pipe, the outer surface of the outer pipe is fixedly connected with a protruding plate, the interior of the outer pipe is fixedly connected with a positioning plate, the positioning plate is slidably connected with a sliding rod, the bottom of the outer pipe is fixedly connected with a top plate, and the top plate is fixedly connected with a spring. The sliding rod is in external threaded connection with a threaded pipe, and the top end of the threaded pipe is fixedly connected with a fixing plate. By arranging the sealing cavity, when the baffle slides, the connecting rod can drive the piston plate to slide in the cavity, air enters and exits from the sealing cavity through the air outlet hole, the threaded pipe is rotated to control the air quantity of the air outlet hole, the damping is adjusted according to the actual situation of the reset spring, the damping can be adjusted to optimize the damping performance of the spring hanger, and the damping is reduced to flexibly absorb energy during slight vibration. Damping is increased to restrain vibration when a strong earthquake occurs, transmission is prevented from affecting the periphery, the spring hanger plays a role under various working conditions, and stable operation of a pipeline or equipment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline construction, and more specifically to a variable spring hanger. Background Art

[0002] As a device used to support and suspend pipes, equipment, etc., the spring hanger's main components include springs, support rods, and hangers. It cleverly uses the elastic properties of the spring to work. When the pipe or equipment is subjected to external force, the spring will produce elastic deformation, thereby absorbing and dispersing the external force, effectively reducing the pressure on the building structure caused by the external force. Once the external force disappears, the spring will return to its original shape, keeping the entire system stable.

[0003] Shock absorption is a key function of spring hangers. When vibration occurs during the operation of equipment or pipelines, the spring can absorb and buffer the vibration through elastic deformation. However, with the increase of usage time, the elastic potential energy of the spring will gradually weaken. After the elastic potential energy weakens, the ability of the spring to absorb vibration also decreases, and it cannot buffer vibration as effectively as at the beginning, which eventually leads to intensified vibration of the equipment or pipeline. Strong vibration will not only generate loud noise and have adverse effects on the working environment, but also cause fatigue damage to the components of the equipment, reducing the reliability and stability of the equipment.

[0004] Given that the weakening of spring force will cause a series of problems, in order to ensure the safe operation of the system, the inspection frequency of spring hangers must be increased so as to detect the weakening of spring force in time. Once a problem is found, the spring needs to be repaired or replaced quickly, which undoubtedly increases the workload of maintenance personnel and also increases maintenance costs. In addition, when the spring breaks and is damaged, the effect of the spring hanger will disappear instantly, which will cause structural damage to the pipeline. Utility Model Content

[0005] In order to overcome the above defects of the prior art, the utility model provides a variable spring hanger to solve the problems existing in the above background technology.

[0006] The utility model provides the following technical scheme: a variable spring hanger comprises an outer tube, the outer surface of the outer tube is fixedly connected with a convex plate, the inner part of the outer tube is fixedly connected with a positioning plate, the inner center of the positioning plate is slidably connected with a sliding rod, the bottom of the outer tube is fixedly connected with a top plate, the thread of the sliding rod is connected with a threaded tube, the upper end of the threaded tube is fixedly connected with the fixing plate, and air outlet holes are equidistantly opened around the upper part of the sliding rod, the sliding rod outer shell is connected with a return spring, the lower end of the sliding rod is fixedly connected with a baffle, the bottom of the baffle is fixedly connected with a connecting rod, the end of the connecting rod away from the baffle is fixedly connected with a piston plate, the inner part of the outer tube is fixedly connected with a fixing seat, the top of the fixing seat is provided with a sealing cavity, the bottom of the outer tube is fixedly connected with a base, a connecting groove is provided at the inner center of the baffle, the connecting rod and the piston plate, and a cavity is provided inside the sliding rod.

[0007] Furthermore, the baffle is longitudinally slidably connected to the inside of the outer tube, the bottom end of the return spring is fixedly connected to the baffle, and the top end of the return spring is fixedly connected to the positioning plate.

[0008] Furthermore, the number of the convex plates is four, and both side surfaces of the positioning plate are fixedly connected with convex blocks, which extend to the outside of the outer tube and are inserted into the middle of the convex plates.

[0009] Furthermore, the outer surface of the piston plate is sealingly and slidably connected to the inside of the sealing cavity, and the inner top of the sealing cavity is connected to the inside of the cavity through a connecting groove.

[0010] Furthermore, the interior of the cavity is connected to the exterior of the sliding rod through an air outlet, and the outer surface of the sliding rod is provided with threads matching the inner wall of the threaded tube.

[0011] Furthermore, one end of the sliding rod away from the baffle plate extends to the outside of the outer tube, and the outer surface of the sliding rod is slidably connected to the inner center of the top plate.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model sets a sealing chamber, and when the baffle slides, the piston plate can slide inside the sealing chamber through the connecting rod, and the air inlet and outlet of the sealing chamber are realized through the air outlet hole. By rotating the threaded tube, the air inlet and outlet volume of the air outlet hole can be controlled, so that the damping effect of the reset spring can be adjusted according to its actual use. The adjustable damping design can effectively optimize the shock absorption performance of the spring hanger. When the pipeline or equipment vibrates slightly, the damping can be reduced so that the spring hanger can respond to the vibration more flexibly and absorb the vibration energy quickly. When encountering a larger impact or strong vibration, increasing the damping can enhance the vibration suppression effect, avoid the vibration from being transmitted to the building structure or other components, reduce the impact on the surrounding environment and equipment, and enable the spring hanger to play a better role under various working conditions to ensure the stable operation of the pipeline or equipment.

[0014] 2. The utility model provides a slidable piston plate, and no matter the hanger is used for supporting or hanging the pipeline, it can achieve a good damping effect in conjunction with the sealing state of the air outlet by the threaded pipe, thereby enhancing adaptability and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a longitudinal sectional view of the utility model;

[0017] Figure 3 It is a schematic diagram of the connection between the sliding rod and the threaded pipe in the utility model;

[0018] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0019] The figures are marked as follows: 1, outer tube; 2, convex plate; 3, positioning plate; 4, sliding rod; 41, cavity; 5, top plate; 6, threaded tube; 7, fixing plate; 8, air outlet; 9, return spring; 10, baffle; 11, connecting rod; 111, connecting groove; 12, piston plate; 13, sealing chamber; 14, fixing seat; 15, base. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0021] Figure 1-Figure 4 It is the best embodiment of the utility model, and the following Figure 1-Figure 4 The utility model is further described.

[0022] See attached Figure 1-Figure 4 The variable spring hanger comprises an outer tube 1, a convex plate 2 is fixedly connected to the outer surface of the outer tube 1, a positioning plate 3 is fixedly connected inside the outer tube 1, the positioning plate 3 is located at the upper part of the outer tube 1, a sliding rod 4 is slidably connected to the middle part of the positioning plate 3, a top plate 5 is fixedly connected to the top of the outer tube 1, a threaded tube 6 is externally threadedly connected to the sliding rod 4, the threaded tube 6 is located on the upper side of the top plate 5, a fixing plate 7 is fixedly connected to the upper end of the threaded tube 6, air outlet holes 8 are equidistantly opened around the upper part of the sliding rod 4, a return spring 9 is connected to the outer sleeve of the sliding rod 4, a baffle 10 is fixedly connected to the lower end of the sliding rod 4, and the baffle 10 is located in the outer tube 1, the return spring 9 is located between the baffle 10 and the positioning plate 3, the baffle 10 is fixedly connected to the bottom of the connecting rod 11, the lower end of the connecting rod 11 is fixedly connected to the piston plate 12, the inner part of the outer tube 1 is fixedly connected to the fixing seat 14, the fixing seat 14 is located at the lower part of the outer tube 1, the top of the fixing seat 14 is provided with a sealing cavity 13, the bottom of the outer tube 1 is fixedly connected to the base 15, the baffle 10, the connecting rod 11 and the piston plate 12 are provided with a connecting groove 111 at the inner center, the sliding rod 4 is provided with a cavity 41, and the cavity 41 is connected with the air outlet 8.

[0023] In this embodiment, by setting a sealed cavity 13, when the baffle 10 slides, the piston plate 12 can slide inside the sealed cavity 13 through the connecting rod 11, and the air inlet and outlet inside the sealed cavity 13 are realized through the air outlet 8. By rotating the threaded tube 6, the size of the exhaust part of the air outlet 8 can be adjusted, and then the air inlet and outlet volume of the air outlet 8 can be controlled, so that the damping effect of the reset spring 9 can be adjusted according to the actual use of the reset spring 9. The adjustable damping design can effectively optimize the shock absorption performance of the spring hanger. When the pipeline or equipment produces a slight vibration, the damping can be reduced so that the spring hanger can respond to the vibration more flexibly and quickly absorb the vibration energy. When encountering a larger impact or strong vibration, increasing the damping can enhance the vibration suppression effect, avoid the vibration from being transmitted to the building structure or other components, reduce the impact on the surrounding environment and equipment, and enable the spring hanger to play a better role under various working conditions and ensure the stable operation of the pipeline or equipment. In this embodiment, the cooperation between the sealed cavity 13 and the piston plate 12 is used to ensure a better buffering effect.

[0024] Specifically, the baffle 10 is longitudinally slidably connected to the inside of the outer tube 1 , the bottom end of the return spring 9 is fixedly connected to the baffle 10 , and the top end of the return spring 9 is fixedly connected to the positioning plate 3 .

[0025] In this embodiment, by fixing the two ends of the return spring 9, whether it is used for hanging or supporting, the shock absorption can be achieved by stretching the return spring 9. In order to ensure the convenience of equipment assembly, the outer tube 1 can be set to two sections, and the two ends are detachably connected by flanges, which can facilitate assembly and maintenance of the inside of the outer tube 1.

[0026] Specifically, there are four convex plates 2 , and convex blocks are fixedly connected to both side surfaces of the positioning plate 3 . The convex blocks extend to the outside of the outer tube 1 and are inserted into the middle of the convex plate 2 .

[0027] In this embodiment, the position of the positioning plate 3 can be fixed by providing the protruding plate 2 .

[0028] Specifically, the outer surface of the piston plate 12 is sealingly and slidably connected to the inside of the sealing cavity 13 , and the inner top of the sealing cavity 13 is connected to the inside of the cavity 41 through the communicating groove 111 .

[0029] In this embodiment, by providing a slidable piston plate 12, whether the hanger is used for support or for hanging the pipeline, in conjunction with the sealing state of the air outlet 8 by the threaded tube 6, a better damping effect can be achieved, thereby enhancing adaptability and flexibility.

[0030] Specifically, the interior of the cavity 41 is connected to the exterior of the sliding rod 4 through the air outlet 8, and the outer surface of the sliding rod 4 is provided with threads matching the inner wall of the threaded tube 6. Since the air outlet 8 does not need to be completely closed, the threaded tube 6 and the sliding rod 4 do not need to be sealed.

[0031] In this embodiment, the gas volume of the gas outlet 8 can be controlled by rotating the threaded tube 6 .

[0032] Specifically, one end of the sliding rod 4 away from the baffle 10 extends to the outside of the outer tube 1 , and the outer surface of the sliding rod 4 is slidably connected to the inner center of the top plate 5 .

[0033] In this embodiment, by providing the top plate 5 , the sliding of the sliding rod 4 can be limited, thereby improving the sliding stability of the sliding rod 4 .

[0034] The working principle and use process of the utility model are as follows: when in use, when vibration occurs, the fixed plate 7 drives the baffle plate 10 to slide up and down inside the outer tube 1 through the threaded tube 6 and the sliding rod 4. When the baffle plate 10 slides up and down, it drives the reset spring 9 to expand and contract. While the baffle plate 10 slides, it drives the piston plate 12 to slide up and down inside the sealing chamber 13 through the connecting rod 11. When the piston plate 12 slides downward, the pressure inside the sealing chamber 13 gradually increases. At this time, the air inside the sealing chamber 13 is discharged from the air outlet 8 through the connecting groove 111 and the cavity 41. When the piston plate 12 slides upward, the pressure inside the sealing chamber 13 increases. The force gradually decreases, and the external air enters the sealed cavity 13 through the air outlet 8, the cavity 41 and the connecting groove 111. Therefore, the amount of air entering the air outlet 8 can directly control the sliding damping of the baffle 10. When the damping needs to be increased, the amount of air entering and exiting the air outlet 8 needs to be reduced. The air outlet 8 can be blocked by rotating the threaded tube 6. Therefore, the damping size can be adjusted by rotating the threaded tube 6. Regardless of whether the hanger is used for support or for hanging the pipeline, the sealing state of the air outlet 8 by the threaded tube 6 can achieve a better damping effect, thereby enhancing adaptability and flexibility.

[0035] It should be noted that the blocking of the air outlet 8 is only to control the speed of the air inlet and outlet, and does not require precise control. Therefore, the conventional connection method between the threaded tube 6 and the sliding rod 4 can be used.

[0036] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A variable spring hanger, comprising an outer tube (1), characterized in that: The outer surface of the outer tube (1) is fixedly connected to a convex plate (2), the interior of the outer tube (1) is fixedly connected to a positioning plate (3), the inner center of the positioning plate (3) is slidably connected to a sliding rod (4), the bottom of the outer tube (1) is fixedly connected to a top plate (5), the thread of the sliding rod (4) is connected to a threaded tube (6), the upper end of the threaded tube (6) is fixedly connected to a fixing plate (7), air outlet holes (8) are equidistantly provided around the upper part of the sliding rod (4), a return spring (9) is connected to the outer sleeve of the sliding rod (4), and the lower end of the sliding rod (4) is fixedly connected to A baffle (10) is provided, a connecting rod (11) is fixedly connected to the bottom of the baffle (10), an end of the connecting rod (11) away from the baffle (10) is fixedly connected to a piston plate (12), a fixing seat (14) is fixedly connected to the inside of the outer tube (1), a sealing cavity (13) is provided at the top of the fixing seat (14), a base (15) is fixedly connected to the bottom of the outer tube (1), a connecting groove (111) is provided at the center of the inside of the baffle (10), the connecting rod (11) and the piston plate (12), and a cavity (41) is provided inside the sliding rod (4).

2. The variable spring hanger according to claim 1, characterized in that: The baffle (10) is longitudinally slidably connected to the interior of the outer tube (1), the bottom end of the return spring (9) is fixedly connected to the baffle (10), and the top end of the return spring (9) is fixedly connected to the positioning plate (3).

3. The variable spring hanger according to claim 1, characterized in that: The number of the convex plates (2) is four, and convex blocks are fixedly connected to both side surfaces of the positioning plate (3), the convex blocks extend to the outside of the outer tube (1) and are inserted into the middle of the convex plates (2).

4. The variable spring hanger according to claim 1, characterized in that: The outer surface of the piston plate (12) is sealingly and slidably connected to the interior of the sealing cavity (13), and the inner top end of the sealing cavity (13) is connected to the interior of the cavity (41) via a connecting groove (111).

5. The variable spring hanger according to claim 1, characterized in that: The interior of the cavity (41) is connected to the exterior of the sliding rod (4) via an air outlet hole (8); the outer surface of the sliding rod (4) is provided with threads matching the inner wall of the threaded tube (6).

6. The variable spring hanger according to claim 1, characterized in that: One end of the sliding rod (4) away from the baffle (10) extends to the outside of the outer tube (1), and the outer surface of the sliding rod (4) is slidably connected to the inner center of the top plate (5).

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