Constant-force spring support hanger convenient to install and adjust

Abstract

The invention relates to the technical field of spring supports and hangers, in particular to a constant-force spring support and hanger convenient to mount and adjust, which comprises a spring shell, a main body structure, a mounting structure, a fixing structure, a limiting structure and an indicating structure, a heavy object is hung through the main body structure, stable and reliable supporting force is provided for the heavy object, meanwhile, the constant force supporting range is wide, heavy object load changes under different working conditions can be conveniently adapted, through the installation structure, the installation efficiency of the spring shell and the main body structure is improved, operation is easy, and installation convenience is improved; a rear pressing plate in a spring shell is rapidly opened through a fixing structure, the convenience of spring replacement is improved, meanwhile, the constant force adjusting range is widened, a rotating frame is fixed and limited through a limiting structure, and the situation that when the spring is replaced, the rotating frame loses the constant force of the spring and rotates under the gravity effect of a heavy object, and consequently the heavy object loses traction force and displaces is avoided; the elastic force change of the internal spring can be visually known through the indication structure, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of spring hangers and supports, and more specifically, to a constant force spring hanger and support that is convenient for installation and adjustment. Background Art

[0002] A constant force spring hanger and support is a device used to support and suspend heavy objects. It relies on a specially designed spring assembly to provide a nearly constant supporting force for the load; the constant force spring hanger and support skillfully combines the elastic deformation principle of the spring and a unique mechanical structure design; when the object being suspended or supported undergoes a position change due to various factors (such as thermal expansion and contraction, displacement generated during equipment operation, etc.), the spring deforms accordingly, and the internal mechanical structure adjusts the force-bearing state of the spring, so that the supporting force acting on the object remains basically constant within the specified displacement range.

[0003] However, the connection components of traditional constant force spring hangers and supports are not designed simply enough. The connection between the hanger and support and the fixed support often requires a large number of bolts and nuts with different specifications for assembly. During the installation process, it is necessary to repeatedly adjust the positions and tightening degrees of each connecting component, which consumes a lot of time and manpower, and is prone to installation quality problems caused by loose connections or installation errors; in harsh industrial environments, such as high temperature, high humidity, strong corrosive gas and other conditions, the metal components of the hanger and support are prone to rust and corrosion, and the elastic performance of the spring may also be affected. The rear pressure plate and the connecting rod are connected by bolts, which is not convenient to disassemble the rear pressure plate to replace the spring; it is impossible to intuitively understand the change of the internal spring elastic force, and it is difficult to troubleshoot internal problems. It requires professional maintenance personnel to spend a lot of time to diagnose, and the maintenance is relatively troublesome. At the same time, the constant force support range is relatively fixed and narrow, and it is difficult to adapt to the situation where the load change range requirements are relatively large under different working conditions. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a constant force spring hanger and support that is convenient for installation and adjustment.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a constant force spring hanger and support that is convenient for installation and adjustment, including a spring housing, a main structure provided on the spring housing, an installation structure provided on the spring housing, a fixing structure provided on the main structure, a limiting structure provided on the main structure, and an indicating structure provided on the main structure;

[0006] The main body structure includes a fixing frame and a fixing shaft. One side of the spring housing is fixedly connected to the fixing frame. The fixing shaft is fixedly connected inside the fixing frame. A rotating frame is rotatably connected to the fixing shaft. A connecting rod is rotatably connected to the rotating frame. A sliding rod is slidably connected to the spring housing. The connecting rod is rotatably connected to the sliding rod. A first screw rod is threadedly connected to the sliding rod. A rear pressing plate is fixedly connected to the first screw rod through a fixing structure. A first spring is abutted between the rear pressing plate and the spring housing. A rotating shaft is fixedly connected to the rotating frame. A rotating block is rotatably connected to the rotating shaft;

[0007] The installation structure includes a support frame and a sliding rail. The spring housing is fixedly connected to the support frame. Two sliding rails are fixedly connected to the support frame. The two sliding rails are fixedly connected to the fixing frame. Two mounting seats are provided on the two sliding rails. One of the mounting seats is fixedly connected to the sliding rail, and the other mounting seat is slidably connected to the sliding rail. A fixing seat is fixedly connected to the mounting seat. A slot is provided in the fixing seat. An installation block is inserted into the slot. A suspension rod is fixedly connected to the top end of the installation block. A pressing plate is slidably connected to the fixing seat. A second spring is fixedly connected between the pressing plate and the fixing seat. Three clamping rods are fixedly connected to the top end of the pressing plate. The clamping rods are slidably connected to the fixing seat. Three clamping holes are provided in the installation block. The clamping rods are engaged with the clamping holes.

[0008] Specifically, a connecting rod is fixedly connected to the bottom end of the rotating block. A threaded sleeve is threadedly connected to the bottom end of the connecting rod. A rotating rod is rotatably connected to the bottom end of the threaded sleeve. A fixing block is fixedly connected to the bottom end of the rotating rod. A hoop is fixedly connected to the fixing block.

[0009] Specifically, a positioning strip is fixedly connected to the sliding rod. The positioning strip is slidably connected to the spring housing and the fixing frame. Three convex strips are fixedly connected to the threaded sleeve in a circumferential array.

[0010] Specifically, the cross-sections of the slot and the installation block are both T-shaped structures. The cross-section of the end of the clamping rod is a trapezoidal structure.

[0011] Specifically, a guiding shaft is fixedly connected inside the fixing seat. The pressing plate is slidably connected to the guiding shaft. The guiding shaft penetrates through the second spring.

[0012] Specifically, the fixing structure includes a notch and a limiting block. The rear pressure plate is provided with a notch, the first screw rod is fixedly connected with a limiting block, the limiting block abuts against the rear pressure plate, two push rods are slidably connected to the rear pressure plate, a connecting bar is fixedly connected to the two push rods, a connecting block is fixedly connected to the push rod, a limiting rod is fixedly connected to the connecting block, the limiting rod is slidably connected to the rear pressure plate, a limiting hole is provided on the limiting block, the limiting rod is engaged with the limiting hole, and a tension spring is fixedly connected between the rear pressure plate and the connecting block.

[0013] Specifically, the limiting structure includes a second screw rod and a knob fixedly connected to the end of the second screw rod. The second screw rod is rotatably connected to the fixing frame. The thread directions at both ends of the second screw rod are opposite. Two connecting plates are threadedly connected to the second screw rod. An internal gear ring is fixedly connected to the connecting plate. An external gear ring is fixedly connected to each side of the rotating frame.

[0014] Specifically, a guide rod is fixedly connected to the fixing frame. The connecting plate is slidably connected to the guide rod. The axes of the external gear ring, the internal gear ring, and the fixed shaft are on the same straight line.

[0015] Specifically, the indicating structure includes a first marking block and a first scale bar. The first marking block is fixedly connected to the rear pressure plate. The first marking block is slidably connected to the spring housing. A first scale bar used in cooperation with the first marking block is fixedly connected to the spring housing.

[0016] Specifically, a fixing rod is fixedly connected to each side of the rotating frame. An arc-shaped groove is provided on each side of the fixing frame. The fixing rod is slidably connected to the arc-shaped groove. A second marking block is fixedly connected to the end of the fixing rod. A second scale bar with an arc-shaped cross-section is fixedly connected to each side of the fixing frame. The second marking block is used in cooperation with the second scale bar. The arc centers of the cross-sections of the second scale bar and the arc-shaped groove and the axis of the fixed shaft are on the same straight line.

[0017] The beneficial effects of the present invention are as follows:

[0018] (1) For a constant force spring hanger that is easy to install and adjust according to the present invention, a main structure is provided on the spring housing, and an installation structure is provided on the main structure. The heavy object is hung by the main structure, providing a stable and reliable supporting force for the heavy object, ensuring that the object remains balanced and fixed in the hanging state, preventing it from shifting or shaking due to its own weight or external factors. At the same time, the constant force support range is wide, facilitating adaptation to the heavy object load changes under different working conditions. Through the installation structure, the installation efficiency of the spring housing and the main structure is improved, the operation is simple, and the installation convenience is improved.

[0019] (2) The constant force spring hanger and support that is convenient for installation and adjustment according to the present invention is provided with a fixing structure on the main body structure and a limiting structure on the main body structure. By the fixing structure, the rear pressing plate inside the spring housing can be quickly opened, which is convenient for replacing springs of different models or damaged springs, improving the convenience of spring replacement and at the same time increasing the constant force adjustment range. By the limiting structure, the rotating frame is fixed and limited, preventing the rotating frame from losing the spring constant force and rotating under the gravity of the heavy object during spring replacement, resulting in the displacement of the heavy object due to the loss of traction.

[0020] (3) The constant force spring hanger and support that is convenient for installation and adjustment according to the present invention is provided with an indicating structure on the main body structure. Through the indicating structure, the elastic force change of the internal spring can be intuitively understood, thereby facilitating the repair and replacement of springs with poor elasticity and improving the maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the drawings and embodiments.

[0022] Figure 1 is a schematic diagram of the overall structure of a preferred embodiment of the constant force spring hanger and support that is convenient for installation and adjustment provided by the present invention;

[0023] Figure 2 is Figure 1 an enlarged schematic diagram of the structure of part A shown in;

[0024] Figure 3 is Figure 1 an enlarged schematic diagram of the structure of part B shown in;

[0025] Figure 4 is Figure 3 an enlarged schematic diagram of the structure of part C shown in;

[0026] Figure 5 is a schematic diagram of the connection structure between the fixing frame and the fixing shaft of the present invention;

[0027] Figure 6 is Figure 5 an enlarged schematic diagram of the structure of part D shown in;

[0028] Figure 7 is Figure 5 an enlarged schematic diagram of the structure of part E shown in;

[0029] Figure 8 is a schematic diagram of the connection structure between the pressing plate and the fixing seat of the present invention;

[0030] Figure 9 is a schematic diagram of the connection structure between the second screw rod and the connecting plate of the present invention;

[0031] Figure 10 is a schematic diagram of the connection structure between the push rod and the connecting strip of the present invention.

[0032] In the figure: 1. Spring housing; 2. Main structure; 201. Fixed frame; 202. Fixed shaft; 203. Rotating frame; 204. Connecting rod; 205. Slide bar; 206. First screw; 207. Rear pressure plate; 208. First spring; 209. Positioning bar; 210. Rotating shaft; 211. Rotating block; 212. Connecting rod; 213. Threaded sleeve; 214. Rotating rod; 215. Fixed block; 216. Hoop; 217. Rib; 3. Mounting structure; 301. Support frame; 302. Slide rail; 303. Mounting seat; 304. Fixed seat; 305. Slot; 306. Mounting block; 307. Suspension rod; 308. Pressing plate; 309. Locking bar; 310. Locking hole; 311. Guide shaft; 312. Second spring; 4. Fixing structure; 401. Notch; 402. Limiting block; 403. Push rod; 404. Connecting bar; 405. Connecting block; 406. Limiting rod; 407. Limiting hole; 408. Tension spring; 5. Limiting structure; 501. Second screw; 502. Knob; 503. Connecting plate; 504. Guide rod; 505. Internal gear ring; 506. External gear ring; 6. Indication structure; 601. First marking block; 602. First scale bar; 603. Fixed rod; 604. Arc groove; 605. Second marking block; 606. Second scale bar. Detailed implementation manners

[0033] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0034] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 shown, a constant force spring hanger that is convenient for installation and adjustment according to the present invention includes a spring housing 1, a main structure 2 provided on the spring housing 1, a mounting structure 3 provided on the spring housing 1, a fixing structure 4 provided on the main structure 2, a limiting structure 5 provided on the main structure 2, and an indication structure 6 provided on the main structure 2;

[0035] The main body structure 2 includes a fixing frame 201 and a fixing shaft 202. One side of the spring housing 1 is fixedly connected to the fixing frame 201. The fixing shaft 202 is fixedly connected inside the fixing frame 201. A rotating frame 203 is rotatably connected to the fixing shaft 202. A connecting rod 204 is rotatably connected to the rotating frame 203. A sliding rod 205 is slidably connected to the spring housing 1. The connecting rod 204 is rotatably connected to the sliding rod 205. A first screw rod 206 is threadedly connected to the sliding rod 205. A rear pressing plate 207 is fixedly connected to the first screw rod 206 through a fixing structure 4. A first spring 208 is abutted between the rear pressing plate 207 and the spring housing 1. A rotating shaft 210 is fixedly connected to the rotating frame 203. A rotating block 211 is rotatably connected to the rotating shaft 210;

[0036] The mounting structure 3 includes a support frame 301 and a slide rail 302. The support frame 301 is fixedly connected to the spring housing 1. Two slide rails 302 are fixedly connected to the support frame 301. The two slide rails 302 are fixedly connected to the fixing frame 201. Two mounting seats 303 are provided on the two slide rails 302. One of the mounting seats 303 is fixedly connected to the slide rail 302, and the other mounting seat 303 is slidably connected to the slide rail 302. A fixing seat 304 is fixedly connected to the mounting seat 303. A slot 305 is provided in the fixing seat 304. A mounting block 306 is inserted into the slot 305. A suspension rod 307 is fixedly connected to the top end of the mounting block 306. A pressing plate 308 is slidably connected to the fixing seat 304. A second spring 312 is fixedly connected between the pressing plate 308 and the fixing seat 304. Three clamping rods 309 are fixedly connected to the top end of the pressing plate 308. The clamping rods 309 are slidably connected to the fixing seat 304. Three clamping holes 310 are provided in the mounting block 306. The clamping rods 309 are engaged with the clamping holes 310;

[0037] A connecting rod 212 is fixedly connected to the bottom end of the rotating block 211. A threaded sleeve 213 is threadedly connected to the bottom end of the connecting rod 212. A rotating rod 214 is rotatably connected to the bottom end of the threaded sleeve 213. A fixing block 215 is fixedly connected to the bottom end of the rotating rod 214. A hoop 216 is fixedly connected to the fixing block 215. A positioning strip 209 is fixedly connected to the sliding rod 205. The positioning strip 209 is slidably connected to the spring housing 1 and the fixing bracket 201. Three convex strips 217 are fixedly connected to the threaded sleeve 213 in a circumferential array. The cross-sections of the slot 305 and the mounting block 306 are both T-shaped structures. The end cross-section of the clamping rod 309 is a trapezoidal structure. A guiding shaft 311 is fixedly connected to the inside of the fixing seat 304. The pressing plate 308 is slidably connected to the guiding shaft 311. The guiding shaft 311 penetrates through the second spring 312.When it is necessary to install the spring housing 1 and the fixing bracket 201, two suspension rods 307 can be fixed on the channel steel or bridge of the building first, and then the fixing bracket 201 and the spring housing 1 are lifted and placed at the bottom ends of the two suspension rods 307 by a hoisting device. Then, the mounting block 306 is fixed at the bottom end of the suspension rod 307. Then, the fixing bracket 201 is moved so that the mounting seat 303 fixed on the slide rail 302 approaches one of the mounting blocks 306. Then, the fixing seat 304 thereon is aligned with the mounting block 306. Then, the fixing bracket 201 is moved so that the mounting block 306 is inserted into the slot 305 on the fixing seat 304. The mounting block 306 will abut against the inclined surface of the locking rod 309, causing the locking rod 309 to slide downward, driving the pressing plate 308 to slide downward, and the second spring 312 to compress. When the mounting block 306 is completely inserted into the slot 305, the second spring 312 resets to drive the pressing plate 308 and the locking rod 309 to reset. The locking rod 309 is engaged into the locking hole 310 inside the mounting block 306, thus initially installing the fixing bracket 201 and the spring housing 1. Then, the other mounting seat 303 is slid so that the mounting block 306 on the other suspension rod 307 is inserted into the slot 305 on the other fixing seat 304. At the same time, the locking rod 309 also descends first, and then rises under the reset action of the second spring 312 and is engaged with the locking hole 310 on the mounting block 306, thus easily and conveniently installing the spring housing 1 and the main structure 2. The setting of the guide shaft 311 avoids the deviation of the second spring 312 and improves the sliding stability of the pressing plate 308. Then, the rib 217 on the threaded sleeve 213 is rotated. The rib 217 drives the threaded sleeve 213 to rotate. The threaded sleeve 213 is threadedly connected to the connecting rod 212. The threaded sleeve 213 is threadedly lifted and lowered to adjust the length of the lower suspension assembly. The adjustment is made until the fixing block 215 at the bottom end of the bottom end rotating rod 214 is above the pipeline to be supported. A hoop 216 is installed between the pipeline and the fixing block 215, and the pipeline is clamped by the hoop 216. When the pipeline expands, contracts or undergoes displacement changes, it will drive the rotating rod 214, the threaded sleeve 213 and the connecting rod 212 to rise and fall, thereby pushing or pulling the rotating frame 203 to rotate around the fixed shaft 202. The rotation of the rotating frame 203 drives the sliding rod 205 to slide through the connecting rod 204. The sliding of the sliding rod 205 drives the first screw rod 206 to slide. The first screw rod 206 drives the rear pressing plate 207 to move through the fixing structure 4. The first spring 208 is squeezed by the rear pressing plate 207, or the first spring 208 resets, thereby compensating for the pipeline through the elastic force of the first spring 208, so that the supporting force of the supporting assembly on the object is within a constant range. When it is necessary to perform constant force compensation according to different pipelines, different first springs 208 can be selected, or the position of the rear pressing plate 207 can be adjusted by rotating the first screw rod 206, thereby adjusting the deformation displacement of the first spring 208 to adapt to the load changes under different working conditions and improving the application range of the device.;

[0038] Specifically, such as Figure 3 ,Figure 4 , Figure 7 , Figure 9 and Figure 10 As shown in Figure 4 , Figure 7 , Figure 9 and Figure 10 , the fixing structure 4 includes a notch 401 and a limiting block 402. The notch 401 is provided on the rear pressing plate 207. The limiting block 402 is fixedly connected to the first screw rod 206. The limiting block 402 abuts against the rear pressing plate 207. Two push rods 403 are slidably connected to the rear pressing plate 207. A connecting strip 404 is fixedly connected to the two push rods 403. A connecting block 405 is fixedly connected to the push rod 403. A limiting rod 406 is fixedly connected to the connecting block 405. The limiting rod 406 is slidably connected to the rear pressing plate 207. A limiting hole 407 is provided on the limiting block 402. The limiting rod 406 is engaged with the limiting hole 407. A tension spring 408 is fixedly connected between the rear pressing plate 207 and the connecting block 405;

[0039] The limiting structure 5 includes a second screw rod 501 and a knob 502 fixedly connected to the end of the second screw rod 501. The second screw rod 501 is rotatably connected to the fixing frame 201. The threads of the two ends of the second screw rod 501 are in opposite directions. Two connecting plates 503 are threadedly connected to the second screw rod 501. An inner gear ring 505 is fixedly connected to the connecting plate 503. An outer gear ring 506 is fixedly connected to each side of the rotating frame 203. A guide rod 504 is fixedly connected to the fixing frame 201. The connecting plate 503 is slidably connected to the guide rod 504. The axes of the outer gear ring 506, the inner gear ring 505 and the fixing shaft 202 are located on a straight line. When the first spring 208 needs to be replaced, the knob 502 can be turned first, and the knob 502 drives the second screw 501 to rotate. Since the threads at both ends of the second screw 501 are in opposite directions, the second screw 501 drives the two connecting plates 503 to slide toward each other on the guide rod 504. The sliding of the connecting plate 503 drives the inner gear ring 505 to move, and the inner gear ring 505 then meshes with the outer gear ring 506 on the rotating frame 203, and the rotating frame 203 remains in a locked state to prevent the rotating frame 203 from rotating under the gravity of the lower pipe due to the loss of the traction effect of the first spring 208 when the first spring 208 is replaced. When the rotating frame 203 is locked, the connecting strip 404 can be pushed to connect The strip 404 drives the push rod 403 to slide, and the push rod 403 drives the connecting block 405 to move, and the tension spring 408 is stretched. At the same time, the connecting block 405 drives the limit rod 406 to no longer engage with the limit hole 407 on the limit block 402. At this time, the limit block 402 can be rotated forward so that the limit block 402 coincides with the notch 401 on the rear pressure plate 207. Then the connecting strip 404 is loosened, and the first spring 208 will push the rear pressure plate 207 outward. At the same time, the rear pressure plate 207 can be pulled out from the spring housing 1 through the connecting strip 404. After being pulled out, the new first spring 208 is replaced, and then the rear pressure plate 207 is slid close to the inside of the spring housing 1 to continuously resist the first spring 208. After the notch 401 on the rear pressure plate 207 passes over the limit block 402, the limit block 402 can be rotated in the opposite direction so that the limit block 402 contacts the rear pressure plate 207, and the connecting strip 404 is pressed to make the limit rod 406 retreat into the rear pressure plate 207. When the limit hole 407 on the limit block 402 is aligned with the limit rod 406, the connecting strip 404 is loosened, and the tension spring 408 is reset to drive the limit rod 406 to engage with the limit hole 407, thereby quickly installing and disassembling the rear pressure plate 207, making it convenient to replace the first spring 208, and then turning the knob 502 to rotate the second screw rod 501, so that the inner gear ring 505 no longer meshes with the outer gear ring 506, and the rotating frame 203 resumes free rotation.

[0040] Specifically, Figure 2 , Figure 3 and Figure 9As shown, the indicating structure 6 includes a first scale block 601 and a first scale bar 602. The first scale block 601 is fixedly connected to the rear pressure plate 207. The first scale block 601 is slidably connected to the spring housing 1. The spring housing 1 is fixedly connected with a first scale bar 602 that is used in cooperation with the first scale block 601. A fixing rod 603 is fixedly connected to each side of the rotating frame 203. An arc-shaped groove 604 is provided on each side of the fixing frame 201. The fixing rod 603 is slidably connected to the arc-shaped groove 604. A second scale block 605 is fixedly connected to the end of the fixing rod 603. A second scale bar 606 with an arc-shaped cross-section is fixedly connected to each side of the fixing frame 201. The second scale block 605 is used in cooperation with the second scale bar 606. The centers of the arcs of the cross-sections of the second scale bar 606 and the arc-shaped groove 604 are located on the same straight line as the axis of the fixed shaft 202. After different first springs 208 are replaced, the initial scale pointed to by the first scale block 601 on the first scale bar 602 can be recorded. At the same time, observe and record the scale pointed to by the second scale block 605 on the second scale bar 606. When the scale changes, judge whether the support hanger is within the constant force compensation range according to the scale change. At the same time, in order to adapt to the load changes under different working conditions, the limit block 402 can be rotated to drive the first screw rod 206 to rotate, and then adjust the deformation amount of the first spring 208 to control the size of the elastic force compensation. Adjust according to the indicating position of the first scale block 601. When rotating the limit block 402, the rear pressure plate 207 needs to be pushed to prevent the rear pressure plate 207 from popping out when the limit block 402 rotates to the notch 401 on the rear pressure plate 207. Through the cooperation of the first scale bar 602 and the first scale block 601, the deformation amount of the first spring 208 can be clearly observed. Through the setting of the second scale block 605 and the second scale bar 606, the rotation angle of the rotating frame 203 can be clearly seen, which is convenient for professionals to judge whether it is a fault of the internal first spring 208 or a problem with the connection components at the rotating frame 203 during maintenance, improving the maintenance efficiency of the device. The setting of the fixing rod 603 and the arc-shaped groove 604 further improves the rotation stability of the rotating frame 203.

[0041] When the present invention is in use, first, when it is necessary to install the spring housing 1 and the fixing bracket 201, two suspension rods 307 can be fixed on the channel steel or bridge of the building first, and then the fixing bracket 201 and the spring housing 1 are hoisted by a hoisting device and placed at the bottom ends of the two suspension rods 307. Then, the mounting block 306 is fixed at the bottom end of the suspension rod 307. Then, the fixing bracket 201 is moved so that the mounting seat 303 fixed on the slide rail 302 approaches one of the mounting blocks 306. Then, the fixing seat 304 thereon is aligned with the mounting block 306. Then, the fixing bracket 201 is moved again so that the mounting block 306 is inserted into the slot 305 on the fixing seat 304. The mounting block 306 will abut against the inclined surface of the latch rod 309, causing the latch rod 309 to slide downward, driving the pressing plate 308 to slide downward, and the second spring 312 is compressed. When the mounting block 306 is completely inserted into the slot 305, the second spring 312 resets to drive the pressing plate 308 and the latch rod 309 to reset. The latch rod 309 is engaged into the locking hole 310 inside the mounting block 306, thereby initially installing the fixing bracket 201 and the spring housing 1. Then, the other mounting seat 303 is slid so that the mounting block 306 on the other suspension rod 307 is inserted into the slot 305 on the other fixing seat 304. At the same time, the latch rod 309 also first descends and then rises under the reset action of the second spring 312 and is engaged with the locking hole 310 on the mounting block 306, thereby easily and conveniently installing the spring housing 1 and the main structure 2. The setting of the guide shaft 311 avoids the deviation of the second spring 312 and improves the stability of the sliding of the pressing plate 308. Then, the rib 217 on the threaded sleeve 213 is rotated. The rib 217 drives the threaded sleeve 213 to rotate. The threaded sleeve 213 is threadedly connected to the connecting rod 212. The threaded sleeve 213 is threadedly lifted and lowered to adjust the length of the lower suspension assembly. The adjustment is made until the fixing block 215 at the bottom end of the bottom end rotating rod 214 is above the pipeline to be supported. A hoop 216 is installed between the pipeline and the fixing block 215, and the pipeline is tightened by the hoop 216. When the pipeline expands, contracts, or undergoes displacement changes due to heat, it will drive the rotating rod 214, the threaded sleeve 213, and the connecting rod 212 to rise and fall, thereby pushing or pulling the rotating frame 203 to rotate around the fixed shaft 202. The rotation of the rotating frame 203 drives the sliding rod 205 to slide through the connecting rod 204. The sliding of the sliding rod 205 drives the first screw rod 206 to slide. The first screw rod 206 drives the rear pressing plate 207 to move through the fixing structure 4. The first spring 208 is squeezed by the rear pressing plate 207, or the first spring 208 resets, thereby compensating for the pipeline through the elastic force of the first spring 208 and making the supporting force of the supporting assembly on the object within a constant range. When it is necessary to perform constant force compensation according to different pipelines, different first springs 208 can be selected, or the position of the rear pressing plate 207 can be adjusted by rotating the first screw rod 206, thereby adjusting the deformation displacement of the first spring 208 to adapt to the load changes under different working conditions and improving the application range of the device;

[0042] Then, when it is necessary to replace the first spring 208, the knob 502 can be rotated first. The knob 502 drives the second screw rod 501 to rotate. Since the thread directions at both ends of the second screw rod 501 are opposite, the second screw rod 501 drives the two connecting plates 503 to slide towards each other on the guide rod 504. The sliding of the connecting plate 503 drives the internal gear ring 505 to move, and the internal gear ring 505 then meshes with the external gear ring 506 on the rotating frame 203. The rotating frame 203 then maintains a locked state, avoiding the rotating frame 203 from rotating under the gravity of the lower pipeline due to the loss of the traction of the first spring 208 when replacing the first spring 208. When the rotating frame 203 is locked, the connecting bar 404 can be pushed. The connecting bar 404 drives the push rod 403 to slide, and the push rod 403 drives the connecting block 405 to move. The tension spring 408 is stretched. At the same time, the connecting block 405 drives the limiting rod 406 to no longer engage with the limiting hole 407 on the limiting block 402. At this time, the limiting block 402 can be rotated in the forward direction so that the limiting block 402 coincides with the notch 401 on the rear pressure plate 207. Then the connecting bar 404 is released. The first spring 208 will push the rear pressure plate 207 outwards. At the same time, the rear pressure plate 207 can be pulled out from the inside of the spring housing 1 through the connecting bar 404. After being pulled out, a new first spring 208 is replaced, and then the rear pressure plate 207 is slid into the inside of the spring housing 1, continuously abutting against the first spring 208. When the notch 401 on the rear pressure plate 207 passes over the limiting block 402, the limiting block 402 can be rotated in the reverse direction so that the limiting block 402 abuts against the rear pressure plate 207. The connecting bar 404 is pressed so that the limiting rod 406 retracts into the rear pressure plate 207. When the limiting hole 407 on the limiting block 402 is aligned with the limiting rod 406, the connecting bar 404 is released. The reset of the tension spring 408 will drive the limiting rod 406 to engage with the limiting hole 407, thereby quickly installing and disassembling the rear pressure plate 207, facilitating the replacement of the first spring 208. Then the knob 502 is rotated again to make the second screw rod 501 rotate, so that the internal gear ring 505 no longer meshes with the external gear ring 506, and the rotating frame 203 resumes free rotation;

[0043] Finally, after different first springs 208 are replaced, the initial scale pointed to by the first scale block 601 on the first scale bar 602 can be recorded. At the same time, observe and record the scale pointed to by the second scale block 605 on the second scale bar 606. When the scale changes, judge whether the support hanger is within the constant force compensation range according to the scale change. At the same time, in order to adapt to the load changes under different working conditions, the limiting block 402 can be rotated to drive the rotation of the first screw rod 206, and then adjust the deformation amount of the first spring 208 to control the size of the elastic force compensation. Adjust according to the indicated position of the first scale block 601. When rotating the limiting block 402, the rear pressure plate 207 needs to be pushed to prevent the rear pressure plate 207 from popping out when the limiting block 402 rotates to the notch 401 on the rear pressure plate 207. Through the cooperation of the first scale bar 602 and the first scale block 601, the deformation amount of the first spring 208 can be clearly observed. Through the setting of the second scale block 605 and the second scale bar 606, the rotation angle of the rotating frame 203 can be clearly seen, which is convenient for professionals to judge whether it is a failure of the internal first spring 208 or a problem with the connection components at the rotating frame 203 during maintenance, improving the efficiency of device maintenance. The setting of the fixed rod 603 and the arc-shaped groove 604 further improves the rotation stability of the rotating frame 203.

[0044] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0045] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A constant force spring hanger that is easy to install and adjust, characterized in that: The device comprises a spring housing (1), a main structure (2) arranged on the spring housing (1), a mounting structure (3) arranged on the spring housing (1), a fixing structure (4) arranged on the main structure (2), a limiting structure (5) arranged on the main structure (2), and an indicating structure (6) arranged on the main structure (2); The main structure (2) comprises a fixing frame (201) and a fixing shaft (202); one side of the spring housing (1) is fixedly connected to the fixing frame (201); the interior of the fixing frame (201) is fixedly connected to the fixing shaft (202); a rotating frame (203) is rotatably connected to the fixing shaft (202); a connecting rod (204) is rotatably connected to the rotating frame (203); a sliding rod (205) is slidably connected to the spring housing (1); and the connecting rod (204) is rotatably connected to the slide rod (205), the slide rod (205) is threadedly connected to a first screw rod (206), the first screw rod (206) is fixedly connected to a rear pressure plate (207) via a fixing structure (4), a first spring (208) is in contact between the rear pressure plate (207) and the spring housing (1), the rotating frame (203) is fixedly connected to a rotating shaft (210), and a rotating block (211) is rotatably connected to the rotating shaft (210); The mounting structure (3) comprises a support frame (301) and a slide rail (302); the spring housing (1) is fixedly connected to the support frame (301); the support frame (301) is fixedly connected to two slide rails (302); the two slide rails (302) are fixedly connected to the fixed frame (201); two mounting seats (303) are provided on the two slide rails (302); one of the mounting seats (303) is fixedly connected to the slide rail (302); the other mounting seat (303) is slidably connected to the slide rail (302); a fixed seat (304) is fixedly connected to the mounting seat (303); the fixed seat (304) ) is provided with a slot (305), a mounting block (306) is inserted inside the slot (305), a suspension rod (307) is fixedly connected to the top of the mounting block (306), a pressing plate (308) is slidably connected to the fixing seat (304), a second spring (312) is fixedly connected between the pressing plate (308) and the fixing seat (304), three clamping rods (309) are fixedly connected to the top of the pressing plate (308), the clamping rods (309) are slidably connected to the fixing seat (304), and three clamping holes (310) are provided on the mounting block (306), and the clamping rods (309) are engaged with the clamping holes (310).

2. The constant force spring hanger that is easy to install and adjust according to claim 1 is characterized in that: The bottom end of the rotating block (211) is fixedly connected to a connecting rod (212), the bottom end of the connecting rod (212) is threadedly connected to a threaded sleeve (213), the bottom end of the threaded sleeve (213) is rotatably connected to a rotating rod (214), the bottom end of the rotating rod (214) is fixedly connected to a fixed block (215), and the fixed block (215) is fixedly connected to a clamp (216).

3. The constant force spring hanger that is easy to install and adjust according to claim 2 is characterized in that: A positioning strip (209) is fixedly connected to the slide bar (205), and the positioning strip (209) is slidably connected to the spring housing (1) and the fixing frame (201). Three convex strips (217) are fixedly connected to the threaded sleeve (213) in a circumferential array.

4. The constant force spring hanger that is easy to install and adjust according to claim 1 is characterized in that: The cross-sections of the slot (305) and the mounting block (306) are both T-shaped structures, and the cross-section of the end of the clamping rod (309) is a trapezoidal structure.

5. The constant force spring hanger that is easy to install and adjust according to claim 1 is characterized in that: A guide shaft (311) is fixedly connected inside the fixing seat (304), the pressing plate (308) is slidably connected to the guide shaft (311), and the guide shaft (311) passes through the second spring (312).

6. The constant force spring hanger that is easy to install and adjust according to claim 1 is characterized in that: The fixing structure (4) comprises a notch (401) and a limit block (402); the rear pressure plate (207) is provided with a notch (401); the first screw rod (206) is fixedly connected to the limit block (402); the limit block (402) abuts against the rear pressure plate (207); two push rods (403) are slidably connected to the rear pressure plate (207); and a connecting strip (404) is fixedly connected to the two push rods (403). The push rod (403) is fixedly connected to a connecting block (405), the connecting block (405) is fixedly connected to a limiting rod (406), the limiting rod (406) is slidably connected to the rear pressure plate (207), the limiting block (402) is provided with a limiting hole (407), the limiting rod (406) is engaged with the limiting hole (407), and a tension spring (408) is fixedly connected between the rear pressure plate (207) and the connecting block (405).

7. The constant force spring hanger that is easy to install and adjust according to claim 1 is characterized in that: The limiting structure (5) comprises a second screw rod (501) and a knob (502) fixedly connected to the end of the second screw rod (501); the second screw rod (501) is rotatably connected to the fixing frame (201); the threads at both ends of the second screw rod (501) are in opposite directions; two connecting plates (503) are threadedly connected to the second screw rod (501); an inner gear ring (505) is fixedly connected to the connecting plate (503); and an outer gear ring (506) is fixedly connected to each side of the rotating frame (203).

8. The constant force spring hanger that is easy to install and adjust according to claim 7 is characterized in that: A guide rod (504) is fixedly connected to the fixed frame (201), the connecting plate (503) is slidably connected to the guide rod (504), and the axes of the outer gear ring (506), the inner gear ring (505) and the fixed shaft (202) are located on a straight line.

9. The constant force spring hanger that is easy to install and adjust according to claim 1 is characterized in that: The indicating structure (6) comprises a first mark block (601) and a first scale bar (602); the first mark block (601) is fixedly connected to the rear pressure plate (207); the first mark block (601) is slidably connected to the spring housing (1); and the spring housing (1) is fixedly connected to the first scale bar (602) used in conjunction with the first mark block (601).

10. The constant force spring hanger that is easy to install and adjust according to claim 9, characterized in that: A fixing rod (603) is fixedly connected to each side of the rotating frame (203); an arc-shaped arc groove (604) is provided on each side of the fixing frame (201); the fixing rod (603) is slidably connected to the arc groove (604); a second mark block (605) is fixedly connected to the end of the fixing rod (603); a second scale bar (606) with an arc-shaped cross section is fixedly connected to each side of the fixing frame (201); the second mark block (605) and the second scale bar (606) are used together; the arc centers of the second scale bar (606) and the arc groove (604) cross sections are located on the same straight line as the axis center of the fixing shaft (202).

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