Low linear constant-force spring support hanger

Abstract

The utility model belongs to the technical field of spring supports and hangers, and particularly discloses a low linear constant-force spring support and hanger which comprises a sleeve, the upper end of the sleeve is fixedly connected with a fixed frame, the fixed frame is internally and rotatably connected with a rotary frame around a horizontal shaft, one end of the rotary frame is hinged with a first pull rod, and the other end of the rotary frame is connected with a lifting hook; a connecting seat is hinged to the bottom end of the first pull rod, a second pull rod is hinged to the lower end of the connecting seat, a rear pressing plate is connected to the bottom end of the second pull rod, a first spring is installed at the upper end of the rear pressing plate, the first pull rod and the second pull rod are sleeved with the first spring, and the upper end of the first spring abuts against the fixing frame; a first pull rod pulls a rear pressing plate upwards to compress a first spring upwards, and the reverse acting force of the first spring provides constant supporting force for the pipeline; and meanwhile, the special requirements that the working displacement direction of the spring support hanger is vertical, no lateral displacement exists, and the installation space is short can be met.

Description

Technical Field

[0001] This utility model belongs to the field of spring support and hanger technology, specifically relating to a low-profile linear constant force spring support and hanger. Background Technology

[0002] Spring hangers are products designed with springs at low natural frequencies. They are mainly used for equipment and pipe hoisting, serving as crucial industrial equipment for supporting and suspending pipes, ducts, and other equipment. Spring hangers offer excellent vibration damping and noise reduction, effectively reducing the transmission of equipment and pipe vibrations to floors, walls, and other structures, thus minimizing solid-borne noise transmission. The design of spring hangers cleverly integrates the essence of mechanics and materials science. Through the elastic deformation capacity of springs, they achieve dynamic support and adjustment of equipment under different operating conditions. Spring hangers can withstand enormous vertical loads and, through the buffering effect of springs, effectively isolate and absorb vibration energy during equipment operation, preventing damage to the equipment itself and its surrounding environment. The installation and maintenance of spring hangers are relatively simple, reducing construction and subsequent maintenance costs.

[0003] With industrial development, higher requirements have been placed on spring supports under special working conditions and installation constraints. Especially in low-ceilinged spaces, spring supports need to have a small installation height while maintaining constant force characteristics to adapt to different working conditions. Therefore, a low-profile, linear, constant force spring support is needed to meet the market demand for low-profile, constant force, easily adjustable, and convenient maintenance spring supports. Existing spring support selection cannot meet the special requirements of vertical working displacement direction, no lateral displacement, and low installation space, which will have a certain impact on project design and construction. Moreover, existing spring supports usually use a plug-in method to install the main pipeline, which will cause the stability of the main body to be compromised during use, thereby reducing the safety of the equipment. Utility Model Content

[0004] To address the shortcomings in the flexibility and stability of existing spring supports, a low-profile, linear, constant-force spring support is proposed. This invention provides the following technical solution:

[0005] A low-profile linear constant force spring support includes a sleeve. A fixed frame is fixedly connected to the upper end of the sleeve. A rotating frame is rotatably connected to the fixed frame about a horizontal axis. A first tie rod is hinged to one end of the rotating frame, and a hook is connected to the other end. A connecting seat is hinged to the bottom end of the first tie rod, and a second tie rod is hinged to the lower end of the connecting seat. A pressure plate is connected to the bottom end of the second tie rod. A first spring is installed on the upper end of the pressure plate. The first spring is sleeved outside the first and second tie rods, and its upper end abuts against the fixed frame. A snap-fit ​​assembly for connecting pipes is provided on the outer side of the sleeve.

[0006] Preferably, the snap-fit ​​assembly includes a fixing plate fixedly connected to the sleeve, and a second spring is installed and connected to both sides of the fixing plate. The second spring is horizontally arranged, and the other end of the second spring is connected to a snap-fit ​​block spaced apart on the outside of the sleeve. A snap-fit ​​space is formed between the sleeve and the snap-fit ​​block. A limiting plate is fixedly connected to the sleeve. The limiting plate is spaced apart on the outside of the snap-fit ​​block. A limiting rod is slidably connected to the inner wall of the limiting plate. The limiting rod passes inward through the limiting plate and is fixedly connected to the snap-fit ​​block.

[0007] Preferably, a slider is fixed to the outer side of the pressing plate, and a vertically arranged sliding rod is fixed to the inner wall of the sleeve. The slider is sleeved on the outside of the sliding rod and vertically slidably connected to the sliding rod.

[0008] Preferably, at least two sliders are arranged at equal intervals around the vertical axis of the first spring, and each slider is vertically slidably connected to a sliding rod.

[0009] Preferably, a sliding groove is horizontally provided on the fixed frame, a limiting shaft is fixed on the outer side of the rotating frame and the limiting shaft is slidably connected to the sliding groove, and a locking shaft is inserted into the fixed frame for locking the rotating frame after passing through the fixed frame and being inserted into the rotating frame.

[0010] Preferably, the rotating frame has a hinge groove at the end away from the first tie rod, a lead screw is installed on the hinge groove, a fixing nut is threaded to the outer side of the lead screw, a connecting block is rotatably connected to the outer side of the lead screw, a vertically arranged first connecting rod is fixed to the bottom of the connecting block, an adjusting bolt is connected to the lower part of the first connecting rod, a vertically arranged second connecting rod is threaded to the lower side of the adjusting bolt, and a hook is installed at the bottom end of the second connecting rod.

[0011] Preferably, the lower part of the first connecting rod is threaded to the adjusting bolt.

[0012] Preferably, the bottom end of the second connecting rod is threaded to the hook.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Through the synergistic action of the first and second tie rods and the spring, a self-balancing force transmission system is formed to ensure that a stable supporting force is always provided during the thermal expansion and contraction of the pipeline, effectively preventing equipment damage caused by sudden displacement.

[0015] 2. The pipe is clamped and fixed by the reverse force of the second spring, which improves the stability of the main body;

[0016] 3. The vertical sliding connection between the slider and the slide rod ensures that the spring pressure is always accurately transmitted in the vertical direction, avoiding the lateral component force from generating additional torque on the pipe, while effectively dispersing the load concentration point and improving the overall structure's resistance to eccentric loads and stability.

[0017] 4. The mechanical limit combination of the slide and the locking shaft not only enables the flexible rotation of the rotating frame but also retains the quick locking function, which facilitates the attitude adjustment and fixation of the equipment at different installation stages. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the snap-fit ​​assembly of this utility model;

[0020] Figure 3 This is a schematic diagram of the sleeve structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the rotating frame of this utility model;

[0022] In the attached diagram: 1. Sleeve; 2. Fixed frame; 3. Rotating frame; 4. Main shaft; 5. First tie rod; 6. Connecting seat; 7. Second tie rod; 8. Pressing plate; 9. First spring; 10. Snap-fit ​​assembly; 101. Fixed plate; 102. Second spring; 103. Snap-fit ​​block; 104. Limiting plate; 105. Limiting rod; 11. Sliding block; 12. Sliding rod; 13. Slide groove; 14. Limiting shaft; 15. Locking shaft; 16. Lead screw; 17. Fixing nut; 18. Connecting block; 19. First connecting rod; 20. Adjusting bolt; 21. Second connecting rod; 22. Hook. Detailed Implementation

[0023] The directional terms mentioned in the following embodiments, such as "up", "down", "left", and "right", are only for reference to the accompanying drawings. Therefore, the directional terms used are for illustration and not for limiting the invention of this utility model.

[0024] Example 1

[0025] like Figure 1-4As shown, a low-profile linear constant force spring support includes a sleeve 1. A fixed frame 2 is fixedly connected to the upper end of the sleeve 1. A rotating frame 3 is rotatably connected to the fixed frame 2 around a horizontal axis. A first pull rod 5 is hinged to one end of the rotating frame 3, and a hook 22 is connected to the other end. A connecting seat 6 is hinged to the bottom end of the first pull rod 5, and a second pull rod 7 is hinged to the lower end of the connecting seat 6. A pressure plate 8 is connected to the bottom end of the second pull rod 7, and a first spring 9 is installed on the upper end of the pressure plate 8. The first spring 9 is sleeved around the first pull rod 5 and the second pull rod 7, with its upper end... When the hook 22 is subjected to downward force after being pressed against the fixed frame 2, the first pull rod 5 pulls the second pull rod 7 upward and drives the pressure plate 8 to compress the first spring 9 upward. The reverse force of the first spring 9 provides a constant support force for the pipeline. At the same time, it can meet the special requirements of the spring support hanger having a vertical working displacement direction without lateral displacement and a low installation space. The first pull rod 5 and the second pull rod 7 work together with the spring to form a self-balancing force transmission system, ensuring that a stable support force is always provided during the thermal expansion and contraction of the pipeline, effectively preventing equipment damage caused by sudden displacement.

[0026] The sleeve 1 is provided with a snap-fit ​​assembly 10 for connecting the pipe on its outer side. Specifically, the snap-fit ​​assembly 10 includes a fixing plate 101 fixedly connected to the sleeve 1. A second spring 102 is installed and connected to both sides of the fixing plate 101. The second spring 102 is horizontally arranged. The other end of the second spring 102 is connected to a snap-fit ​​block 103 spaced apart on the outer side of the sleeve 1. A snap-fit ​​space is formed between the sleeve 1 and the snap-fit ​​block 103. A limit plate 104 is fixedly connected to the sleeve 1. The limit plate 104 is spaced apart on the outer side of the snap-fit ​​block 103. A limit rod 105 is slidably connected to the inner wall of the limit plate 104. The limit rod 105 passes inward through the limit plate 104 and is fixedly connected to the snap-fit ​​block 103. The pipe can be installed in the snap-fit ​​space formed by the sleeve 1 and the snap-fit ​​block 103, and the snap-fit ​​block 103 moves to squeeze the second spring 102. The pipe is clamped and fixed by the reverse force of the second spring 102.

[0027] Furthermore, a slider 11 is fixed to the outer side of the pressure plate 8, and a vertically arranged slide rod 12 is fixed to the inner wall of the sleeve 1. The slider 11 is sleeved on the outer side of the slide rod 12 and vertically slidably connected to the slide rod 12, ensuring that the spring pressure is always accurately transmitted in the vertical direction and avoiding the lateral component force from generating additional torque on the pipeline.

[0028] Specifically, two sliders 11 are arranged at equal intervals around the vertical axis of the first spring 9. Each slider 11 is vertically slidably connected to a slide rod 12, which effectively disperses the load concentration point and improves the overall structure's resistance to eccentric loads and stability.

[0029] Furthermore, a sliding groove 13 is horizontally provided on the fixed frame 2, and a limiting shaft 14 is fixed on the outer side of the rotating frame 3, and the limiting shaft 14 is slidably connected to the sliding groove 13. A locking shaft 15 is inserted into the fixed frame 2 for passing through the fixed frame 2 and then being inserted into the rotating frame 3 to lock the rotating frame 3. The mechanical limiting combination of the sliding groove 13 and the locking shaft 15 not only realizes the flexible rotation of the rotating frame 3 but also retains the quick locking function, which facilitates the attitude adjustment and fixation of the equipment at different installation stages.

[0030] Specifically, in order to install the hook 22, the slewing frame 3 is provided with a hinge groove at the end away from the first tie rod 5. A lead screw 16 is installed on the hinge groove. A fixing nut 17 is threaded on the outer side of the lead screw 16 for easy disassembly and assembly. A connecting block 18 is rotatably connected to the outer side of the lead screw 16. A vertically arranged first connecting rod 19 is fixed at the bottom of the connecting block 18. An adjusting bolt 20 is connected to the lower part of the first connecting rod 19. A vertically arranged second connecting rod 21 is threaded on the lower side of the adjusting bolt 20. The hook 22 is installed at the bottom end of the second connecting rod 21.

[0031] Working principle: In use, firstly, the sleeve 1 is placed on the inner wall of the pipe. Then, the reverse force of the second spring 102 drives the locking block 103 to lock the main body to the pipe. The locking block 103 is limited by the cooperation of the limiting plate 104 and the limiting rod 105, which improves the stability of the main body. Then, according to the distance between the two sets of pipe supports, the first connecting rod 19 and the second connecting rod 21 are adjusted to the appropriate position by adjusting the adjusting bolt 20. Then, the other pipe is fixed by the hook 22. After that, the locking shaft 15 is removed, and the pipe will pass through the first connecting rod. 19 and the second connecting rod 21 drive the rotating frame 3 to rotate along the main shaft 4. At the same time, the rotating frame 3 drives the limiting shaft 14 to slide along the slide groove 13, thereby limiting the rotating frame 3 and improving the stability of the equipment. While the rotating frame 3 is rotating, it will drive the first pull rod 5 to move. The first pull rod 5 drives the second pull rod 7 to move through the connecting seat 6. The second pull rod 7 drives the pressure plate 8 to move. The pressure plate 8 drives the pipeline to provide constant support force through the reverse force of the first spring 9, thereby avoiding new additional pressure on the pipeline.

[0032] Example 2

[0033] Based on Embodiment 1, the lower part of the first connecting rod 19 is threaded to the adjusting bolt 20, which facilitates the enhancement of the length adjustment accuracy of the connecting rod and makes it easier to meet the stepless adjustment requirements of pipes of different specifications.

[0034] Meanwhile, the bottom end of the second connecting rod 21 is threaded to the hook 22, which facilitates the quick replacement of hooks 22 of different specifications according to on-site needs, and makes it easy to replace vulnerable parts individually during equipment maintenance, thereby reducing the total life cycle cost.

Claims

1. A low-profile linear constant force spring support, characterized in that, The sleeve (1) is fixedly connected to a fixed frame (2) at its upper end. A rotating frame (3) is rotatably connected to the fixed frame (2) around a horizontal axis. A first pull rod (5) is hinged to one end of the rotating frame (3), and a hook (22) is connected to the other end. A connecting seat (6) is hinged to the bottom end of the first pull rod (5), and a second pull rod (7) is hinged to the lower end of the connecting seat (6). A pressure plate (8) is connected to the bottom end of the second pull rod (7). A first spring (9) is installed on the upper end of the pressure plate (8). The first spring (9) is sleeved outside the first pull rod (5) and the second pull rod (7) and its upper end abuts against the fixed frame (2). A snap-fit ​​assembly (10) for connecting pipes is provided on the outside of the sleeve (1).

2. The low-profile linear constant force spring support according to claim 1, characterized in that, The snap-fit ​​assembly (10) includes a fixing plate (101) fixedly connected to the sleeve (1). A second spring (102) is installed on both sides of the fixing plate (101). The second spring (102) is horizontally arranged. The other end of the second spring (102) is connected to a snap-fit ​​block (103) spaced apart on the outside of the sleeve (1). A snap-fit ​​space is formed between the sleeve (1) and the snap-fit ​​block (103). A limiting plate (104) is fixedly connected to the sleeve (1). The limiting plate (104) is spaced apart on the outside of the snap-fit ​​block (103). A limiting rod (105) is slidably connected to the inner wall of the limiting plate (104). The limiting rod (105) passes through the limiting plate (104) and is fixedly connected to the snap-fit ​​block (103).

3. The low-profile linear constant force spring support according to claim 2, characterized in that, A slider (11) is fixed on the outer side of the pressing plate (8), and a vertically arranged sliding rod (12) is fixed on the inner wall of the sleeve (1). The slider (11) is sleeved on the outer side of the sliding rod (12) and vertically slidably connected to the sliding rod (12).

4. The low-profile linear constant force spring support according to claim 3, characterized in that, At least two sliders (11) are arranged at equal intervals around the vertical axis of the first spring (9), and each slider (11) is vertically slidably connected to a slide rod (12).

5. The low-profile linear constant force spring support according to claim 1, characterized in that, A sliding groove (13) is horizontally provided on the fixed frame (2). A limiting shaft (14) is fixed on the outside of the rotating frame (3), and the limiting shaft (14) is slidably connected to the sliding groove (13). A locking shaft (15) is inserted into the fixed frame (2) for passing through the fixed frame (2) and then being inserted into the rotating frame (3) to lock the rotating frame (3).

6. The low-profile linear constant force spring support according to claim 1, characterized in that, The rotating frame (3) has a hinge groove at one end away from the first tie rod (5), and a lead screw (16) is installed on the hinge groove. A fixing nut (17) is threaded to the outside of the lead screw (16), and a connecting block (18) is rotatably connected to the outside of the lead screw (16). A vertically arranged first connecting rod (19) is fixed to the bottom of the connecting block (18), and an adjusting bolt (20) is connected to the lower part of the first connecting rod (19). A vertically arranged second connecting rod (21) is threaded to the lower side of the adjusting bolt (20), and a hook (22) is installed at the bottom end of the second connecting rod (21).

7. The low-profile linear constant force spring support according to claim 6, characterized in that, The lower part of the first connecting rod (19) is threaded to the adjusting bolt (20).

8. The low-profile linear constant force spring support according to claim 6, characterized in that, The bottom end of the second connecting rod (21) is threaded to the hook (22).

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