Constant-force spring support hanger

Abstract

The utility model relates to the technical field of supports and hangers, and discloses a constant force spring support and hanger which comprises two side plates and a first spring, the two side plates are arranged side by side in a spaced mode, an adjustable protection assembly is arranged at one ends of the two side plates, and a stress assembly is arranged in the protection assembly. A rotating assembly for driving the stress assembly to move along the protection assembly is arranged between the two side plates, a limiting assembly for fixing the protection assembly is arranged on the protection assembly, the first spring is arranged on the stress assembly, the stress assembly moves and extrudes the first spring, and through the elastic force of the second spring, the first spring is driven to rotate; when the second sleeve is fixed, the first spring and the stress assembly are exposed outside, a worker can conveniently take down the first spring in the stress assembly and replace the first spring, the movable wheel makes contact with the inner wall of the second sleeve, and therefore the contact face between the movable wheel and the second sleeve is reduced, and the working efficiency is improved. Friction force can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of supports and hangers, and more specifically to a constant force spring support and hanger. Background Art

[0002] Constant force spring hanger (hereinafter referred to as constant hanger) is designed according to the principle of moment balance. Under the permitted load displacement, the load moment and spring moment are always balanced. For the pipelines and equipment supported by the constant hanger, it can provide constant support force when displacement occurs, so it will not bring additional stress to the pipeline equipment. Constant hangers are generally used in places where displacement stress needs to be reduced, such as the suspended parts of power station boilers, steam, water, smoke, air ducts and burners in power plants, as well as places where such support is needed in the petroleum and chemical industries.

[0003] Most of the springs in the existing constant suspension are resisted by a pressure plate, which is threadedly connected to the pull rod through a nut to fix the pressure plate, and all of these are placed in a protective sleeve. When the spring fails due to long-term use and cannot be used any longer, the staff is required to replace the spring to ensure the normal operation of the equipment. However, when replacing the spring, the staff is required to use auxiliary tools to reach into the protective sleeve for disassembly. The internal space of the protective sleeve is small, which will cause certain obstructions to the disassembly work, resulting in a slow replacement process. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a constant force spring support hanger to solve the problems in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a constant force spring support hanger, comprising two side plates and a first spring, the two side plates are arranged side by side and at intervals, an adjustable protective component is arranged at one end of the two side plates, a force-bearing component is arranged inside the protective component, a rotating component is arranged between the two side plates for driving the force-bearing component to move along the protective component, a limiting component is arranged on the protective component for fixing the protective component, the first spring is arranged on the force-bearing component, and the force-bearing component moves and squeezes the first spring.

[0006] Furthermore, the rotating assembly includes two rotating plates, a rotating shaft, a load bolt and a first pull rod. The rotating shaft is arranged between the two side plates and fixedly connected to the two side plates. The two rotating plates are symmetrically sleeved on both ends of the rotating shaft and are rotatably connected to the rotating shaft. One end of the load bolt is rotatably connected to the rotating plate. One end of the first pull rod is located between the two rotating plates and is rotatably connected to the two rotating plates.

[0007] Furthermore, the protective assembly includes a first sleeve, a second sleeve, an annular groove, a circular ring and a second spring. One end of the first sleeve is fixedly connected to the two side plates. The circular ring is fixedly sleeved on one end of the first sleeve close to the side plate. The annular groove is opened on the second sleeve. The other end of the first sleeve is located in the annular groove and slides with the annular groove. The second spring is arranged in the annular groove. One end of the second spring is fixedly connected to the inner wall of the annular groove, and the other end is fixedly connected to the first sleeve.

[0008] Furthermore, the limiting assembly includes two support rods, two fixed blocks, two blocking blocks and two fixing holes. One end of the two support rods is fixedly connected to the second sleeve, and the other end passes through the circular ring and slidably cooperates with the circular ring. The two fixed blocks are respectively fixedly installed on one end of the corresponding support rod passing through the circular ring. The two fixing holes are respectively opened on the corresponding support rods. The two blocking blocks are respectively fixedly sleeved on the corresponding support rods and are located between the fixing holes and the second sleeve.

[0009] Furthermore, the force-bearing component includes a second pull rod, a pressure plate and a nut. The second pull rod is located in the first sleeve and the second sleeve. One end of the second pull rod extends between the two side plates and is rotatably connected to the other end of the first pull rod. The first spring and the pressure plate are both mounted on the second pull rod. The pressure plate and the second pull rod are slidably matched. One end of the first spring is connected to the inner wall of the first sleeve, and the other end contacts the pressure plate. It is threadedly connected to the second pull rod through the nut and limits the pressure plate.

[0010] Furthermore, the force-bearing component also includes a plurality of mounting seats and a plurality of moving wheels. The plurality of mounting seats are fixedly mounted on the pressure plate in a circular shape and are equidistantly spaced. The plurality of moving wheels are respectively arranged on the corresponding mounting seats. The plurality of rotating wheels are in contact with the inner wall of the second sleeve.

[0011] Technical effects and advantages of the utility model:

[0012] 1. When the utility model is in use, the staff will push the second sleeve, and the second sleeve will move toward the first sleeve, so that the first sleeve will gradually enter the second sleeve. At this time, the second spring will be squeezed, and the second sleeve will move and drive the support rod, the fixed block and the blocking block to move synchronously. When the blocking block contacts the bottom of the ring, the fixing hole is located above the ring. The pin is inserted into the fixing hole. Through the elastic force of the second spring, the pin inserted into the fixing hole is always in contact with the ring. At this time, the second sleeve is fixed. When the second sleeve is fixed, the first spring and the force-bearing component will be exposed to the outside, which is convenient for the staff to remove the first spring in the force-bearing component for replacement.

[0013] 2. The moving wheel contacts the inner wall of the second sleeve. Due to the friction force, the moving wheel rotates along the inner wall of the second sleeve, thereby reducing the contact area with the second sleeve and reducing the friction force. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 The enlarged structural diagram of part A in the middle;

[0017] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0018] Figure 5 For this utility model Figure 4 The enlarged structural diagram of part B is shown in the figure.

[0019] The accompanying drawings are marked as follows: 1. side plate; 2. first spring; 3. protective assembly; 301. first sleeve; 302. second sleeve; 303. annular groove; 304. circular ring; 305. second spring; 4. force-bearing assembly; 401. second pull rod; 402. pressure plate; 403. nut; 404. mounting seat; 405. moving wheel; 5. rotating assembly; 501. rotating plate; 502. rotating shaft; 503. load bolt; 504. first pull rod; 6. limiting assembly; 601. support rod; 602. fixing block; 603. blocking block; 604. fixing hole. 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 5 It is the best embodiment of the utility model, and the following Figure 1-Figure 5 The utility model is further described.

[0022] See attached Figure 1-Figure 5 The utility model discloses a constant force spring support hanger, comprising two side plates 1 and a first spring 2. The two side plates 1 are arranged side by side and at intervals. An adjustable protective component 3 is arranged at one end of the two side plates 1. A force-bearing component 4 is arranged in the protective component 3. A rotating component 5 for driving the force-bearing component 4 to move along the protective component 3 is arranged between the two side plates 1. A limiting component 6 for fixing the protective component 3 is arranged on the protective component 3. The first spring 2 is arranged on the force-bearing component 4, and the force-bearing component 4 moves and squeezes the first spring 2.

[0023] In the present embodiment, when in use, the rotating component 5 is rotated under force, and the force-bearing component 4 moves along the protective component 3, and the first spring 2 is squeezed by the force-bearing component 4, thereby achieving a recoil effect. When the first spring 2 fails and needs to be replaced, the entire device is removed. At this time, the staff adjusts the length of the protective component 3 and fixes the protective component 3 through the limiting component 6 to expose the force-bearing component 4, which is convenient for the staff to disassemble the force-bearing component 4, thereby replacing the failed first spring 2. When the replacement is completed, the limiting component 6 no longer fixes the protective component 3, and the protective component 3 returns to its initial state.

[0024] Specifically, the rotating assembly 5 includes two rotating plates 501, a rotating shaft 502, a load bolt 503 and a first pull rod 504. The rotating shaft 502 is arranged between the two side plates 1 and is fixedly connected to the two side plates 1. The two rotating plates 501 are symmetrically sleeved on both ends of the rotating shaft 502 and are rotatably connected to the rotating shaft 502. The two rotating plates 501 are located between the two side plates 1. One end of the load bolt 503 extends between the two rotating plates 501 and is rotatably connected to the two rotating plates 501. One end of the first pull rod 504 is located between the two rotating plates 501 and is rotatably connected to the two rotating plates 501.

[0025] In this embodiment, when the device is in use, the device is placed in a horizontal state by a suspension rope, and the load bolt 503 is connected to the suspension rope of the fixed pipeline below. When the pipeline is displaced, the load bolt 503 is pulled by the downward force, and the load bolt 503 drives the rotating plate 501 to rotate, and the rotating plate 501 rotates along the rotating shaft 502 and drives the first pull rod 504. Because of the limit of the protection component 3, the force component 4 does not rotate with the first pull rod 504, and will move along the protection component 3. When the load bolt 503 is no longer subjected to the downward pulling force, the force component 4 returns to the initial state. The suspension rope can also be replaced by a hanger.

[0026] Specifically, the protection assembly 3 includes a first sleeve 301, a second sleeve 302, an annular groove 303, a ring 304, and a second spring 305. One end of the first sleeve 301 is closed and fixedly connected to the two side plates 1. The ring 304 is fixedly sleeved on one end of the first sleeve 301 close to the side plate 1. The annular groove 303 is provided on the second sleeve 302. The other end of the first sleeve 301 slides into the annular groove 303. The second spring 305 is provided in the annular groove 303. One end of the second spring 305 is fixedly connected to the inner wall of the annular groove 303, and the other end is fixedly connected to the first sleeve 301. The ring 304 is fixedly connected to the side plate 1.

[0027] The limiting assembly 6 includes two support rods 601, two fixing blocks 602, two blocking blocks 603 and two fixing holes 604. One end of the two support rods 601 is fixedly connected to the second sleeve 302, and the other end passes through the circular ring 304 and slidably cooperates with the circular ring 304. The two support rods 601 are symmetrically arranged on both sides of the first sleeve 301. The two fixing blocks 602 are respectively fixedly installed on one end of the corresponding support rods 601 passing through the circular ring 304. The two fixing holes 604 are respectively opened on the corresponding support rods 601. The two blocking blocks 603 are respectively fixedly sleeved on the corresponding support rods 601 and are located between the fixing holes 604 and the second sleeve 302.

[0028] In this embodiment, when disassembling, the staff will push the second sleeve 302, and the second sleeve 302 will move toward the first sleeve 301, so that the first sleeve 301 will gradually enter the second sleeve 302. At this time, the second spring 305 is squeezed, and the second sleeve 302 moves and drives the support rod 601, the fixing block 602 and the blocking block 603 to move synchronously. When the blocking block 603 contacts the bottom of the ring 304, the fixing hole 604 is located above the ring 304. The fixing hole 604 is inserted through the pin, and the rebound force of the second spring 305 makes the pin inserted into the fixing hole 604 always contact with the ring 304. At this time, the second sleeve 302 is fixed. When the second sleeve 302 is fixed, the first spring 2 and the force-bearing component 4 will be exposed to the outside, which is convenient for the staff to remove the first spring 2 in the force-bearing component 4 for replacement.

[0029] Specifically, the force-bearing component 4 includes a second pull rod 401, a pressure plate 402 and a nut 403. The second pull rod 401 is located in the first sleeve 301 and the second sleeve 302. One end of the second pull rod 401 extends between the two side plates 1 and is rotatably connected to the other end of the first pull rod 504. The first spring 2 and the pressure plate 402 are both sleeved outside the second pull rod 401. The pressure plate 402 and the second pull rod 401 are slidably matched. One end of the first spring 2 is in contact with and connected to the closed end of the first sleeve 301, and the other end is in contact with the pressure plate 402. The closed end of the first sleeve 301 is provided with a through hole for the second pull rod 401 to pass through, and is threadedly connected to the second pull rod 401 through the nut 403 and limits the pressure plate 402.

[0030] The force-bearing component 4 further includes a plurality of mounting seats 404 and a plurality of moving wheels 405. The plurality of mounting seats 404 are fixedly mounted on the pressure plate 402 in an annular shape and are equidistant therefrom. The plurality of moving wheels 405 are respectively arranged on corresponding mounting seats 404. The plurality of moving wheels 405 are in contact with the inner wall of the second sleeve 302. In this embodiment, two moving wheels 405 are arranged side by side on each mounting seat 404.

[0031] In this embodiment, when the first pull rod 504 moves, due to the limitation of the second sleeve 302, the first pull rod 504 pulls the second pull rod 401, and the second pull rod 401 drives the pressure plate 402, the nut 403, the mounting seat 404 and the moving wheel 405 to move, and the first spring 2 is squeezed by the pressure plate 402. Because the moving wheel 405 contacts the inner wall of the second sleeve 302, it can not only play a guiding role, but also reduce the friction between the pressure plate 402 and the second sleeve 302, so that there is a gap between the second sleeve 302 and the pressure plate 402. The moving wheel 405 will not move out beyond the second sleeve 302. When the first spring 2 needs to be replaced, the second sleeve 302 moves, and the second sleeve 302 will drive the moving wheel 405 to rotate. At this time, the pressure plate 402, the second pull rod 401 and the nut 403 extend from the end of the second sleeve 302 away from the side plate 1 and are exposed to the outside. The nut 403 is manually twisted to disengage the nut 403 from the second pull rod 401. At this time, the staff removes the pressure plate 402 and then removes the failed first spring 2. At this time, the staff replaces the new first spring 2.

[0032] 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 constant force spring hanger, comprising two side plates (1) and a first spring (2), characterized in that: The two side panels (1) are arranged side by side and at intervals, an adjustable protective component (3) is arranged at one end of the two side panels (1), a force-bearing component (4) is arranged inside the protective component (3), a rotating component (5) is arranged between the two side panels (1) for driving the force-bearing component (4) to move along the protective component (3), a limiting component (6) is arranged on the protective component (3) for fixing the protective component (3), and a first spring (2) is arranged on the force-bearing component (4), and the force-bearing component (4) moves and compresses the first spring (2).

2. A constant force spring hanger according to claim 1, characterized in that: The rotating assembly (5) comprises two rotating plates (501), a rotating shaft (502), a load bolt (503) and a first pull rod (504); the rotating shaft (502) is arranged between the two side plates (1) and is fixedly connected to the two side plates (1); the two rotating plates (501) are symmetrically sleeved on both ends of the rotating shaft (502) and are rotatably connected to the rotating shaft (502); one end of the load bolt (503) is rotatably connected to the rotating plates (501); and one end of the first pull rod (504) is located between the two rotating plates (501) and is rotatably connected to the two rotating plates (501).

3. The constant force spring hanger according to claim 1, characterized in that: The protection assembly (3) comprises a first sleeve (301), a second sleeve (302), an annular groove (303), a circular ring (304) and a second spring (305); one end of the first sleeve (301) is fixedly connected to the two side plates (1); the circular ring (304) is fixedly sleeved on one end of the first sleeve (301) close to the side plate (1); the annular groove (303) is provided on the second sleeve (302); the other end of the first sleeve (301) is located in the annular groove (303) and slidably cooperates with the annular groove (303); the second spring (305) is arranged in the annular groove (303); one end of the second spring (305) is fixedly connected to the inner wall of the annular groove (303); and the other end of the second spring (305) is fixedly connected to the first sleeve (301).

4. A constant force spring hanger according to claim 3, characterized in that: The limiting assembly (6) comprises two supporting rods (601), two fixing blocks (602), two blocking blocks (603) and two fixing holes (604); one end of the two supporting rods (601) is fixedly connected to the second sleeve (302), and the other end passes through the circular ring (304) and is slidably matched with the circular ring (304); the two fixing blocks (602) are respectively fixedly mounted on one end of the corresponding supporting rod (601) passing through the circular ring (304); the two fixing holes (604) are respectively opened on the corresponding supporting rods (601); and the two blocking blocks (603) are respectively fixedly sleeved on the corresponding supporting rods (601) and are located between the fixing holes (604) and the second sleeve (302).

5. The constant force spring hanger according to claim 3, characterized in that: The force-bearing component (4) comprises a second pull rod (401), a pressure plate (402) and a nut (403); the second pull rod (401) is located in the first sleeve (301) and the second sleeve (302); one end of the second pull rod (401) extends between the two side plates (1) and is rotatably connected to the other end of the first pull rod (504); the first spring (2) and the pressure plate (402) are both sleeved on the second pull rod (401); the pressure plate (402) and the second pull rod (401) are slidably matched; one end of the first spring (2) is connected to the inner wall of the first sleeve (301), and the other end contacts the pressure plate (402); the first spring (2) is threadedly connected to the second pull rod (401) through the nut (403) and limits the pressure plate (402).

6. A constant force spring hanger according to claim 5, characterized in that: The force-bearing component (4) further comprises a plurality of mounting seats (404) and a plurality of moving wheels (405); the plurality of mounting seats (404) are fixedly mounted on the pressure plate (402) at equal intervals in a ring shape; the plurality of moving wheels (405) are respectively arranged on corresponding mounting seats (404); and the plurality of rotating wheels are in contact with the inner wall of the second sleeve (302).

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