Constant-force spring supporting and hanging device for pipeline bearing

Abstract

The invention relates to the technical field of pipeline bearing, and discloses a constant-force spring supporting and hanging device for pipeline bearing, which comprises a shell, two mounting columns are arranged at the bottom of the shell, and a lug plate is movably arranged in the shell. During use, when the state of the compensation spring is abnormal and the elastic acting force is reduced or disappears, the movement change of a related part can trigger an induction mechanism, the movement of the sliding shaft drives the lifting block, then the sliding block moves through the linkage connecting rod, the clamping block is clamped with the clamping groove, meanwhile, the clamping block is attached to the square inductor, and an electric signal is transmitted to the wireless module and the indicator lamp. And when a compensation spring fails, a standby spring provides supporting force for a square block, a sliding block is supported through connection of a first connecting rod and a second connecting rod, and then synchronous supporting force is provided for a cam, so that an arc-shaped sensor is always attached to a roller, and the service life of the arc-shaped sensor is prolonged. And moment balance at two sides is kept.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline supports, and more specifically to a constant force spring support device for pipeline supports. Background Art

[0002] The constant force spring hanger is designed based on the principle of moment balance. Under the permitted load displacement, the load moment and spring moment always remain balanced. For pipelines and equipment supported by constant hangers, constant support force can be provided when displacement occurs, thus not bringing additional stress to the pipeline equipment.

[0003] When the constant force spring hanger in the prior art is in use, the supporting effect is achieved by the elastic action of the spring in the vertical direction, and the horizontal force is offset by setting two compensation springs in the horizontal direction. However, after long-term use, the compensation spring will break or be damaged, resulting in a weakening of the elastic action. Due to the unbalanced torque on both sides, it is very easy to cause damage to the pipeline, increasing the difficulty of repair work. If the staff fails to discover it in time, the loss caused is likely to be further expanded. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a constant force spring support device for pipeline support to solve the problems existing in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a constant force spring support and suspension device for pipe support, comprising a shell, two mounting columns are arranged at the bottom of the shell, an ear plate is movably arranged in the shell, pin holes are arranged on the opposite inner walls of the ear plates, a pin shaft is slidably installed in the two pin holes, a positioning mechanism is arranged at both ends of the pin shaft, the positioning mechanism is used to fix the position of the ear plate, a sliding hole is arranged at the top of the shell, a steel pipe is slidably installed in the sliding hole, a connecting hole is arranged on the inner wall of the peripheral side of the steel pipe, and the pin shaft is slidably installed in the sliding hole. Installed in the connecting hole, the two ends of the steel pipe are jointly provided with a supporting mechanism, the opposite inner walls of the shell are provided with two mounting holes, and two pins are respectively fixedly installed in the four mounting holes, and cams are rotatably sleeved on the two pins, and the outer walls of the circumferential sides of the two cams are provided with compensation mechanisms, and the two compensation mechanisms are both adapted to the ear plates, and the two compensation mechanisms are symmetrically arranged on the two sides of the ear plates, and the inner wall of the shell is provided with two standby mechanisms, and the two standby mechanisms are respectively connected to the outer walls of the circumferential sides of the two cams.

[0006] Furthermore, the positioning mechanism includes two positioning tooth plates, and the two positioning tooth plates are fixedly installed on the side of the shell, and the inner wall of the side of the shell is provided with a positioning slide hole, one end of the pin shaft extends to the outside of the positioning slide hole and is sleeved with a positioning block, and both sides of the positioning block are provided with teeth, and the end of the pin shaft is provided with a threaded groove, and a positioning bolt is threadedly installed in the threaded groove, and two roller sleeves are fixedly installed on the relative inner walls of the ear plates, and rollers are rotatably installed on the peripheral outer walls of the two roller sleeves, and the two rollers are respectively fitted with the peripheral outer walls of the two cams.

[0007] Furthermore, the supporting mechanism includes a top plate, a threaded sleeve is fixedly installed on the top end of the steel pipe, a threaded pipe is installed in the inner thread of the threaded sleeve, the bottom end of the threaded pipe extends into the steel pipe, and the top end of the threaded pipe is fixedly connected to the top plate.

[0008] Furthermore, the supporting mechanism also includes a main spring, and two lower cross beams are fixedly installed on the relative inner walls of the shell, and the bottoms of the two lower cross beams are provided with threaded holes, and the two threaded holes are staggered, and the first connecting bolts are threadedly installed in the two threaded holes, and the two first connecting bolts are commonly fixedly sleeved with a base bottom plate, and the top of the base bottom plate is fixedly installed with a base cylinder, and the bottoms of the ear plate and the base bottom plate are provided with avoidance holes, and the bottom of the ear plate is fixedly installed with a positioning sleeve, the peripheral outer wall of the steel pipe is in contact with the peripheral inner wall of the positioning sleeve, and the main spring is sleeved on the peripheral outer wall of the steel pipe, and the top of the main spring is fixedly installed on the bottom of the ear plate, and the bottom end of the main spring extends into the base cylinder and is fixedly installed on the top of the base bottom plate.

[0009] Furthermore, the compensation mechanism includes a compensation spring, a mounting hole is provided on the side of the shell, a compensation spring seat is slidably installed in the mounting hole, the compensation spring is sleeved on the peripheral outer wall of the compensation spring seat, one end of the compensation spring is fixedly installed on the side of the compensation spring seat, and the other end of the compensation spring is fixedly installed on the side inner wall of the shell, a screw hole is provided on the end inner wall of the compensation spring seat, a second connecting bolt is threadedly installed in the screw hole, a semicircular groove is provided on the peripheral outer wall of the cam, a wear reducing plate is fixedly installed in the semicircular groove, a small shaft is rotatably installed on the peripheral inner wall of the wear reducing plate, a connecting screw groove is provided on the peripheral outer wall of the small shaft, and the end of the second connecting bolt is threadedly connected to the connecting screw groove.

[0010] Furthermore, the backup mechanism includes an arc sensor, the arc surface of the cam is provided with an arc groove, the arc sensor is slidably arranged in the arc groove, the outer wall of the arc sensor is provided with two compression components, the compression component includes a compression spring, a square cavity is provided in the cam, the side inner wall of the square cavity is provided with a first through hole, a sliding shaft is slidably installed in the first through hole, one end of the sliding shaft is fixedly connected to the outer wall of the arc sensor, the outer wall of the sliding shaft is fixedly sleeved with a square plate, the compression spring is sleeved on the outer wall of the outer wall of the sliding shaft, one end of the compression spring is fixedly connected to the side of the square plate, the other end of the compression spring is fixedly connected to the side inner wall of the square cavity, a wireless module is fixedly installed on the side inner wall of the shell, and indicator lights are provided on both sides of the shell.

[0011] Further, the standby mechanism also includes a rectangular frame, the rectangular frame is fixedly mounted on the peripheral side outer wall of the cam, the peripheral side outer wall of the cam is provided with a lifting slot, a lifting block is slidably mounted in the lifting slot, and the side inner wall of the lifting slot is provided with a second through hole, one end of the sliding shaft extends to the outside of the second through hole and is fixedly connected to the side of the lifting block, and a sliding block is slidably mounted in the rectangular frame, and square grooves are provided on both side parts of the sliding block, and guide shafts are fixedly mounted on the side inner walls of the two square grooves, and clamping blocks are slidably mounted on the peripheral side outer walls of the two guide shafts, and clamping springs are sleeved on the peripheral side outer walls of the two guide shafts, and clamping grooves are provided on the relative inner walls of the rectangular frame, and extrusion holes are provided on the side inner walls of the two clamping grooves, and extrusion shafts are slidably mounted in the two extrusion holes, and square sensors are fixedly mounted on the ends of the two extrusion shafts close to each other, and pressing plates are fixedly mounted on the ends of the two extrusion shafts away from each other, and a linkage connecting rod is rotatably mounted on the side of the sliding block.

[0012] Furthermore, the backup mechanism also includes a mounting frame, a circular hole is opened on the side inner wall of the mounting frame, an electric telescopic rod is fixedly installed in the circular hole, the output end of the electric telescopic rod extends into the mounting frame and is fixedly connected to a square block, a backup spring is fixedly installed on the side of the square block, one end of the backup spring is on the side inner wall of the mounting frame, and the square block is connected to the sliding block through a telescopic assembly.

[0013] Furthermore, the telescopic assembly includes a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably installed on the side of the square block, the other end of the first connecting rod is provided with a telescopic slot, and the relative inner walls of the telescopic slot are provided with a plurality of circular slots, one end of the second connecting rod is rotatably installed on the side of the sliding block, and the other end of the second connecting rod is slidably installed in the telescopic slot, a limiting cavity is provided in the second connecting rod, a sliding hole is provided on the bottom inner wall of the limiting cavity, a limiting shaft is slidably installed in the sliding hole, one end of the limiting shaft extends into the limiting cavity and is fixedly provided with a connecting slide, an ejection spring is sleeved on the peripheral outer wall of the limiting shaft, an extrusion groove is provided on the side of the sliding block, a rectangular hole is provided on the top inner wall of the extrusion groove, a limiting column is fixedly installed on the side of the rectangular frame, the other end of the limiting column extends into the extrusion groove, and the bottom end of the limiting shaft extends into the rectangular hole and fits with the side of the limiting column.

[0014] Furthermore, the telescopic assembly also includes a square sliding rod, a square sliding hole is provided on the top inner wall of the limiting cavity, the square sliding rod is slidably installed in the square sliding hole, one end of the square sliding rod extends into the limiting cavity and is fixedly connected to the side of the connecting slide, the other end of the square sliding rod extends into the telescopic slot and is rotatably installed with two third connecting rods, two rectangular slots are provided on the side of the second connecting rod, guide grooves are provided on the relative inner walls of the two rectangular slots, limiting blocks are slidably installed in the four guide grooves, and two rectangular slides are respectively fixedly installed on the relative inner walls of the four limiting blocks, the other ends of the two third connecting rods are respectively rotatably installed on the sides of the two rectangular slides, and the sides of the two rectangular slides away from each other are fixedly installed with clamping columns.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. During the long-term operation of the equipment, the compensation spring is prone to breakage, reduced elasticity and other abnormalities, which affect the normal operation of the equipment and may cause damage to the pipeline. This mechanism uses a clever structural design. When the compensation spring is in an abnormal state and the elastic force decreases or disappears, the movement changes of the associated components will trigger the sensing mechanism. The movement of the sliding shaft drives the lifting block, and then the sliding block moves through the linkage connecting rod. The card block is connected to the card slot, and the card block fits with the square sensor, transmitting electrical signals to the wireless module and indicator light, which promptly reminds the staff of equipment failure so that maintenance measures can be taken quickly to avoid the expansion of the failure and ensure the safe operation of the equipment.

[0016] 2. Once the compensation spring abnormality is detected, the entire mechanism will quickly make automatic adjustments. Under the elastic action of the compression spring, the square plate and the sliding shaft move, driving a series of components such as the lifting block and the sliding block to work together. The limit column, the limit shaft, the connecting slide and other components cooperate with each other, so that the clamping column is connected with the circular clamping groove to fix the connection state of the first connecting rod and the second connecting rod. This automatic adjustment mechanism can quickly reconstruct the mechanical structure of the equipment when the compensation spring fails, maintain the stable connection of the key components of the equipment, ensure that the equipment can still maintain a certain operating capacity in the event of a failure, and provide protection for the continuous operation of the equipment.

[0017] 3. When the system detects an abnormality in the compensation spring and releases the limit on related components, the backup spring comes into play, providing support force for the square block, and supporting the sliding block through the connection between the first connecting rod and the second connecting rod, thereby providing synchronous support force for the cam, so that the arc sensor always fits with the roller to maintain the torque balance on both sides. This backup support system effectively avoids pipeline damage caused by compensation spring failure, ensures that the equipment can still operate safely and stably under complex working conditions, greatly improves the reliability and service life of the equipment, and reduces equipment maintenance costs and production interruption risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of this embodiment; Figure 2 Schematic diagram of the internal structure of the housing in this embodiment; Figure 3 This is a schematic diagram of the partial structural connection between the steel pipe and the pin shaft in this embodiment; Figure 4 This is a schematic diagram of the partial structural connection between the bottom plate of the base and the lower crossbeam in this embodiment; Figure 5 This is a schematic diagram of the partial structural connection between the compensation spring seat and the small shaft in this embodiment; Figure 6 It is a schematic diagram of the partial structural connection between the ear plate and the pin hole of this embodiment; Figure 7 This is a schematic diagram of the partial cutaway structure of the cam and rectangular frame in this embodiment; Figure 8 for Figure 7 The enlarged structural diagram at A in the middle; Fig. 9 This is a schematic diagram of the partial structure of the rectangular frame and the sliding block in this embodiment; Fig.10 for Fig. 9 The enlarged structural diagram at B in the middle; Fig.11 Schematic diagram of the partial structure of the first connecting rod and the second connecting rod in this embodiment; Fig.12 for Fig.11 The enlarged structural diagram at C in the middle; Fig.13 It is a schematic diagram of the partially cut-away and enlarged structure of the installation frame in this embodiment.

[0019] The accompanying drawings are marked as follows: 1, housing; 2, positioning tooth plate; 3, mounting column; 4, base bottom plate; 5, base cylinder; 6, first connecting bolt; 7, positioning block; 8, positioning bolt; 9, pin column; 10, steel pipe; 11, cam; 12, compensation spring seat; 13, lower cross beam; 14, main spring; 15, threaded pipe; 16, top plate; 17, screw sleeve; 18, pin shaft; 19, wireless module; 20, compensation spring; 21, second connecting bolt; 22, small shaft; 23, ear plate; 24, roller sleeve; 25, roller; 26, positioning sleeve; 27, pin hole; 28, first connecting rod; 29, second connecting rod; 30, anti-friction 31. arc sensor; 32. sliding shaft; 33. square plate; 34. compression spring; 35. rectangular frame; 36. lifting block; 37. sliding block; 38. linkage connecting rod; 39. clamping block; 40. clamping spring; 41. extrusion shaft; 42. square sensor; 43. pressing plate; 44. limiting column; 45. limiting shaft; 46. connecting slide plate; 47. ejection spring; 48. square slide bar; 49. rectangular slide plate; 50. limiting block; 51. third connecting rod; 52. clamping column; 53. circular clamping groove; 54. mounting frame; 55. square block; 56. spare spring; 57. indicator light; 58. electric telescopic rod. 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 belong to the scope of protection of the present application.

[0021] Figure 1-Figure 13 The best embodiment of the present invention is shown below in conjunction with the attached Figure 1-Figure 13 The present invention is further described.

[0022] Refer to the attached Figure 1-Figure 13A constant force spring support device for pipe support, comprising a shell 1, two mounting columns 3 are arranged at the bottom of the shell 1, an ear plate 23 is movably arranged in the shell 1, the opposite inner walls of the ear plate 23 are provided with pin holes 27, a pin shaft 18 is slidably installed in the two pin holes 27, and a positioning mechanism is arranged at both ends of the pin shaft 18, and the positioning mechanism is used to fix the position of the ear plate 23, a sliding hole is arranged at the top of the shell 1, a steel pipe 10 is slidably installed in the sliding hole, a connecting hole is arranged on the inner wall of the peripheral side of the steel pipe 10, and the pin shaft 18 slides Installed in the connecting hole, a supporting mechanism is commonly provided at both ends of the steel pipe 10, two mounting holes are provided on the opposite inner walls of the shell 1, two pins 9 are fixedly installed in the four mounting holes, cams 11 are rotatably sleeved on the two pins 9, compensation mechanisms are provided on the peripheral outer walls of the two cams 11, the two compensation mechanisms are adapted to the ear plate 23, the two compensation mechanisms are symmetrically arranged on the two sides of the ear plate 23, and two standby mechanisms are provided on the inner wall of the shell 1, and the two standby mechanisms are respectively connected to the peripheral outer walls of the two cams 11.

[0023] like Figure 1 As shown, the positioning mechanism includes two positioning tooth plates 2, and the two positioning tooth plates 2 are fixedly installed on the side of the shell 1. The inner wall of the side of the shell 1 is provided with a positioning slide hole, one end of the pin shaft 18 extends to the outside of the positioning slide hole and is sleeved with a positioning block 7, and both sides of the positioning block 7 are provided with teeth, and the end of the pin shaft 18 is provided with a threaded groove, and a positioning bolt 8 is threadedly installed in the threaded groove. Two roller sleeves 24 are fixedly provided on the relative inner walls of the ear plate 23, and rollers 25 are rotatably installed on the outer walls of the peripheral sides of the two roller sleeves 24. The two rollers 25 are respectively fitted with the outer walls of the peripheral sides of the two cams 11. In this way, the two positioning tooth plates 2 can be clamped with the positioning block 7 to realize the limiting function of the ear plate 23, effectively prevent the pin shaft 18 from moving, and ensure the stable operation of the mechanism. The pin shaft 18 extends outside the positioning slide hole, which is convenient for installing the positioning block 7, and the position of the positioning block 7 can be quickly adjusted to meet different working scenarios.

[0024] Specifically, after the device is installed, the positions of the ear plate 23, the pin 18, and the steel pipe 10 can be limited by the clamping action of the positioning block 7 and the positioning tooth plate 2, effectively preventing them from being displaced, thereby facilitating the staff to adjust the height of the support mechanism and support the pipeline, and by loosening the positioning bolt 8, the positioning block 7 and the positioning tooth plate 2 can be offset and rotated 90°, thereby releasing the clamping action of the positioning block 7 and the positioning tooth plate 2, and the operation is simple, preventing the positioning tooth plate 2 from being lost.

[0025] like Figure 3As shown, the support mechanism includes a top plate 16, a screw sleeve 17 is fixedly installed on the top of the steel pipe 10, a threaded tube 15 is installed in the inner thread of the screw sleeve 17, the bottom end of the threaded tube 15 extends into the steel pipe 10, and the top of the threaded tube 15 is fixedly connected to the top plate 16. The support mechanism also includes a main spring 14, and two lower cross beams 13 are fixedly installed on the relative inner walls of the shell 1, and the bottoms of the two lower cross beams 13 are both provided with threaded holes, and the two threaded holes are staggered. The first connecting bolts 6 are threadedly installed in the two threaded holes, and the two first connecting bolts 6 are fixedly sleeved with a base bottom plate 4. The top of the base bottom plate 4 is fixedly installed with a base cylinder 5, and the bottoms of the ear plate 23 and the base bottom plate 4 are both provided with avoidance holes. The bottom of the ear plate 23 is fixedly installed with a positioning sleeve 26, and the steel pipe 1 0 is fitted with the circumferential outer wall of the positioning sleeve 26, the main spring 14 is sleeved on the circumferential outer wall of the steel pipe 10, the top end of the main spring 14 is fixedly installed on the bottom of the ear plate 23, and the bottom end of the main spring 14 extends into the base cylinder 5 and is fixedly installed on the top of the base bottom plate 4. In this way, the threaded tube 15 can cooperate with the screw sleeve 17 to adjust the height of the top plate 16 to meet different support requirements. A stable support structure is constructed by the lower cross beam 13, the first connecting bolt 6 and the base bottom plate 4 to avoid looseness at the bottom, which makes it difficult to play a good elastic support role. By sleeved the main spring 14 outside the steel pipe 10 and connecting the ear plate 23 and the base bottom plate 4, a buffering and shock absorbing effect can be provided, the stability of the mechanism can be enhanced, and the impact of vibration on the equipment can be reduced.

[0026] Specifically, after the device is fixed and installed, the top plate 16 can be driven to move upward by rotating the threaded tube 15, thereby achieving a supporting effect on the pipeline. When the pipeline is displaced, it squeezes the top plate 16 to move downward, and through the connecting action of the pin shaft 18, the ear plate 23 can be driven to move downward. Since the base bottom plate 4 remains stationary, when the ear plate 23 moves downward, it can squeeze the main spring 14, so that through the elastic action of the main spring 14, a constant supporting force is exerted on the pipeline, effectively preventing the pipeline from breaking or being damaged.

[0027] like Figure 2 and Figure 5As shown, the compensation mechanism includes a compensation spring 20, a mounting hole is provided on the side of the housing 1, a compensation spring seat 12 is slidably installed in the mounting hole, the compensation spring 20 is sleeved on the peripheral outer wall of the compensation spring seat 12, one end of the compensation spring 20 is fixedly installed on the side of the compensation spring seat 12, and the other end of the compensation spring 20 is fixedly installed on the side inner wall of the housing 1, a screw hole is provided on the inner wall of the end of the compensation spring seat 12, and a second connecting bolt 21 is threadedly installed in the screw hole, a semicircular groove is provided on the peripheral outer wall of the cam 11, and a wear reducing plate 30 is fixedly installed in the semicircular groove, A small shaft 22 is rotatably mounted on the inner wall of the circumference of the wear reducing plate 30, and a connecting screw groove is provided on the outer wall of the circumference of the small shaft 22. The end of the second connecting bolt 21 is threadedly connected to the connecting screw groove. In this arrangement, the compensation spring 20 can cooperate with the compensation spring seat 12 to effectively compensate for the displacement and force changes during the operation of the mechanism, thereby ensuring the operational stability. The second connecting bolt 21 is threadedly connected to the connecting screw groove of the small shaft 22 on the cam 11 to ensure a stable connection between the components. The wear reducing plate 30 cooperates with the small shaft 22 to reduce friction loss during rotation and extend the service life of the mechanism.

[0028] Specifically, when the ear plate 23 moves up and down, the elastic action of the compensation spring 20 can squeeze the compensation spring seat 12, the second connecting bolt 21, and the small shaft 22 to squeeze the cam 11, so that the cam 11 is always in contact with the surface of the roller 25, thereby playing a constant force support role in the horizontal direction.

[0029] like Figure 7As shown, the backup mechanism includes an arc sensor 31, an arc groove is provided on the arc surface of the cam 11, the arc sensor 31 is slidably arranged in the arc groove, two compression components are provided on the peripheral outer wall of the arc sensor 31, and the compression component includes a compression spring 34, a square cavity is provided in the cam 11, a first through hole is provided on the side inner wall of the square cavity, a sliding shaft 32 is slidably installed in the first through hole, one end of the sliding shaft 32 is fixedly connected to the peripheral outer wall of the arc sensor 31, a square plate 33 is fixedly sleeved on the peripheral outer wall of the sliding shaft 32, a compression spring 34 is sleeved on the peripheral outer wall of the sliding shaft 32, one end of the compression spring 34 is fixedly connected to the side of the square plate 33, and the other end of the compression spring 34 is fixedly connected to the side inner wall of the square cavity. Next, a wireless module 19 is fixedly installed on the inner wall of the side of the shell 1. Specifically, the wireless module 19 is a prior art and can be connected to a remote computer through a network, so as to transmit real-time data for easy monitoring. Its specific working principle is not repeated here. Indicator lights 57 are provided on both side walls of the shell 1. Specifically, the indicator lights 57 can be controlled by a PLC controller. Through the setting of the arc sensor 31, its contact position with the roller 25 can be monitored, so as to accurately sense the movement state of the cam 11, and then the displacement of the pipeline can be monitored and recorded. Through the setting of the compression spring 34, when the compensation spring 20 is abnormal, the backup mechanism can be switched in time for elastic force compensation to ensure stable operation of the equipment.

[0030] Specifically, when the compensation spring 20 on one side is broken or damaged, the squeezing force on the cam 11 will be reduced or disappear. At this time, under the elastic action of the two compression springs 34, the arc sensor 31 can be driven to pop out of the arc groove.

[0031] like Figure 7 and Figure 8As shown, the standby mechanism also includes a rectangular frame 35, which is fixedly mounted on the outer wall of the circumference of the cam 11. The outer wall of the circumference of the cam 11 is provided with a lifting groove, and a lifting block 36 is slidably mounted in the lifting groove. A second through hole is provided on the inner wall of the side of the lifting groove, and one end of a sliding shaft 32 extends to the outside of the second through hole and is fixedly connected to the side of the lifting block 36. A sliding block 37 is slidably mounted in the rectangular frame 35. Square grooves are provided on both sides of the sliding block 37. Guide shafts are fixedly mounted on the inner walls of the sides of the two square grooves. The outer walls of the circumference of the two guide shafts are slidably mounted. There is a card block 39, and the outer walls of the circumferential sides of the two guide shafts are sleeved with card springs 40. The opposite inner walls of the rectangular frame 35 are provided with card slots, and the side inner walls of the two card slots are provided with extrusion holes. Extrusion shafts 41 are slidably installed in the two extrusion holes, and the ends of the two extrusion shafts 41 close to each other are fixedly installed with square sensors 42. Specifically, the arc sensor 31 and the square sensor 42 are both existing technologies and can be controlled by a PLC controller. The specific working principle is not repeated here. The ends of the two extrusion shafts 41 away from each other are fixedly installed with pressing plates 43, and the side of the sliding block 37 is rotatably installed with a linkage connecting rod 38. In this way, the lifting block 36, the linkage connecting rod 38 and the sliding block 37 can be connected to each other, so that under normal working conditions, the sliding block 37 always remains in a stationary state, thereby keeping the standby mechanism in a constant state without generating supporting force.

[0032] Specifically, by connecting the lifting block 36 with one of the sliding shafts 32, when the arc sensor 31 is located in the arc groove, the lifting block 36 can always remain stationary, so that the sliding block 37 is limited by the connecting action of the linkage rod 38, so that the standby mechanism is in a non-working state. Through the elastic action of the locking spring 40, when the sliding block 37 moves to a suitable position, the locking block 39 can be driven to move and realize the locking function with the locking groove, thereby limiting the sliding block 37 and contacting with the two square sensors 42 to transmit electrical signals to other components.

[0033] like Fig.13 As shown, the backup mechanism also includes a mounting frame 54, a circular hole is opened on the inner wall of the side of the mounting frame 54, and an electric telescopic rod 58 is fixedly installed in the circular hole. Specifically, the electric telescopic rod 58 can be controlled by a PLC controller, and the movable end of the electric telescopic rod 58 extends into the mounting frame 54 and is fixedly connected to a square block 55, and a backup spring 56 is fixedly installed on the side of the square block 55, and one end of the backup spring 56 is fixed on the inner wall of the side of the mounting frame 54, and the square block 55 is connected to the sliding block 37 through a telescopic assembly. Through the arrangement of the electric telescopic rod 58, when the compensation spring 20 is in a normal state, the square block 55 can always remain in a stationary state, thereby avoiding the backup spring 56 from providing a certain supporting force.

[0034] Specifically, when the compensation spring 20 is broken or damaged, one of the square sensors 42 transmits an electrical signal to the electric telescopic rod 58, so that it remains in a follow-up state, thereby releasing the limit on the square block 55, so that the elastic action of the backup spring 56 can be transmitted to the cam 11 through the telescopic assembly.

[0035] like Fig.11 and Fig.12 As shown, the telescopic assembly includes a first connecting rod 28 and a second connecting rod 29. One end of the first connecting rod 28 is rotatably mounted on the side of the square block 55. The other end of the first connecting rod 28 is provided with a telescopic slot. The opposite inner walls of the telescopic slot are provided with a plurality of circular slots 53. One end of the second connecting rod 29 is rotatably mounted on the side of the sliding block 37. The other end of the second connecting rod 29 is slidably mounted in the telescopic slot. A limiting cavity is provided in the second connecting rod 29. A sliding hole is provided on the bottom inner wall of the limiting cavity. A limiting shaft 45 is slidably mounted in the sliding hole. The limiting shaft 45 is slidably mounted in the sliding hole. One end of the limiting shaft 45 extends into the limiting cavity and is fixedly provided with a connecting slide plate 46, an ejection spring 47 is sleeved on the outer wall of the peripheral side of the limiting shaft 45, an extrusion groove is provided on the side of the sliding block 37, a rectangular hole is provided on the top inner wall of the extrusion groove, a limiting column 44 is fixedly installed on the side of the rectangular frame 35, the other end of the limiting column 44 extends into the extrusion groove, the bottom end of the limiting shaft 45 extends into the rectangular hole and fits with the side of the limiting column 44, and through the elastic action of the ejection spring 47, when the sliding block 37 moves, the limiting column 44 can be released. The limiting shaft 45 is limited so that the limiting shaft 45 moves synchronously with the connecting slide 46 under the action of the ejection spring 47. The telescopic assembly also includes a square slide rod 48. The top inner wall of the limiting cavity is provided with a square slide hole. The square slide rod 48 is slidably installed in the square slide hole. One end of the square slide rod 48 extends into the limiting cavity and is fixedly connected to the side of the connecting slide 46. The other end of the square slide rod 48 extends into the telescopic groove and is rotatably installed with two third connecting rods 51. The side of the second connecting rod 29 is provided with two rectangular grooves. The two rectangular grooves are provided in the middle of the second connecting rod 29. The relative inner walls of the shaped grooves are provided with guide grooves, and limit blocks 50 are slidably installed in the four guide grooves. Two rectangular slides 49 are fixedly installed on the relative inner walls of the four limit blocks 50, and the other ends of the two third connecting rods 51 are rotatably installed on the sides of the two rectangular slides 49, and the sides of the two rectangular slides 49 that are away from each other are fixedly installed with clamping columns 52. Through the clamping connection of the two clamping columns 52 and the circular clamping groove 53, the first connecting rod 28 and the second connecting rod 29 can be fixedly connected, thereby facilitating the backup spring 56 to play a supporting role.

[0036] Specifically, when the sliding block 37 moves horizontally, the limit column 44 remains stationary. At this time, under the elastic action of the ejection spring 47, the connecting slide 46, the limit shaft 45, and the square slide rod 48 are driven to move synchronously. Under the action of the two third connecting rods 51, the two rectangular slides 49 and the two clamping columns 52 are driven to move synchronously in opposite directions, thereby realizing a clamping effect with the circular clamping groove 53. This arrangement can fix the first connecting rod 28 and the second connecting rod 29 to be fixedly connected, which is convenient for supporting the cam 11, thereby realizing the constant force support function when the compensation spring 20 is damaged.

[0037] The working principle and use process of the present invention are as follows: when in use, the device is first installed to a suitable position through the installation column 3, and then the threaded tube 15 is rotated to drive the top plate 16 to move upward to support the pipeline until the positioning tooth plate 2 becomes loose and can be freely removed. Before the device is operated, the positioning bolt 8 is rotated, and the positioning tooth plate 2 is pulled out and rotated ninety degrees after it is loosened, thereby releasing its clamping state. During the operation stage of the equipment, the pipeline is displaced due to thermal expansion, and the bracket absorbs the vertical direction. While the pipe is moving, a constant supporting force is applied to the pipeline, which avoids additional stress on the pipeline during operation and protects the safe operation of the entire system.

[0038] When the bracket absorbs the vertical force, the ear plate 23 will undergo vertical displacement. At this time, due to the elastic effect of the two compensation springs 20, the two compensation spring seats 12, the two second connecting bolts 21, and the two small shafts 22 can be driven to move synchronously toward or away from each other, so that the two cams 11 are always in contact with the roller 25, thereby absorbing the horizontal force and providing better support for the pipeline.

[0039] After long-term use, the compensation spring 20 may break, be damaged or have reduced elasticity, resulting in different elastic forces on the two cams 11, making it difficult to absorb the horizontal force and unable to provide a constant supporting force, which can easily cause damage to the pipeline. When the compensation spring 20 is abnormal, its elastic force is reduced or disappears. When the ear plate 23 is lifted and lowered, due to the abnormal state of the compensation spring 20, the cam 11 connected thereto cannot maintain a fit with the roller 25. At this time, under the elastic action of the two compression springs 34, the two square plates 33 and the two sliding shafts 32 are driven to move synchronously toward the arc sensor 31.

[0040] When one of the sliding shafts 32 moves, it drives the lifting block 36 to move synchronously into the lifting slot. At this time, under the connection action of the linkage connecting rod 38, the sliding block 37 can be driven to move horizontally in the rectangular frame 35. When the sliding block 37 moves to a suitable position, through the elastic action of the two clamping springs 40, the two clamping blocks 39 can be driven to move synchronously in opposite directions, and the clamping function with the two clamping slots is realized. The clamping block 39 fits with the square sensor 42, so that one of the square sensors 42 transmits an electrical signal to the wireless module 19 and the indicator light 57 to prompt the staff, and the other square sensor 42 transmits an electrical signal to the electric telescopic rod 58, so that it is in a follow-up state, and its limit on the square block 55 is released.

[0041] When the sliding block 37 moves horizontally, the limiting column 44 remains stationary. At this time, the limiting effect on the limiting shaft 45 disappears. Under the elastic action of the ejection spring 47, the limiting shaft 45 moves synchronously with the connecting slide 46. When the connecting slide 46 moves, it drives the square slide bar 48 to move synchronously. Under the connection action of the two third connecting rods 51, the two rectangular slides 49 and the two clamping columns 52 are driven to move synchronously in opposite directions, so that the two clamping columns 52 are synchronously clamped with two of the circular grooves 53, so that the first connecting rod 28 and the second connecting rod 29 remain in a fixed connection state, so as to provide a stable support effect.

[0042] When the limit on the square block 55 is released, the elastic action of the backup spring 56 can provide a supporting force for the square block 55, thereby supporting the sliding block 37 through the connection between the first connecting rod 28 and the second connecting rod 29, thereby exerting a synchronous supporting force on the cam 11, so that the arc sensor 31 can always fit the surface of the roller 25, so that the torque on both sides is balanced, avoiding pipeline damage.

[0043] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content 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 according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A constant force spring support device for supporting a pipeline, comprising a housing (1), wherein two mounting columns (3) are arranged at the bottom of the housing (1), and characterized in that: An ear plate (23) is movably arranged in the shell (1), and opposite inner walls of the ear plate (23) are provided with pin holes (27), and a pin shaft (18) is slidably mounted in the two pin holes (27), and both ends of the pin shaft (18) are provided with positioning mechanisms, and the positioning mechanisms are used to fix the position of the ear plate (23). A sliding hole is opened at the top of the shell (1), and a steel pipe (10) is slidably mounted in the sliding hole. The inner wall of the circumference of the steel pipe (10) is opened, and the pin shaft (18) is slidably mounted in the connecting hole. Both ends of the steel pipe (10) are provided with a positioning mechanism. The positioning mechanism is used to fix the position of the ear plate (23). A supporting mechanism is also provided, two mounting holes are provided on the opposite inner walls of the shell (1), two pins (9) are fixedly installed in the four mounting holes respectively, a cam (11) is rotatably sleeved on the two pins (9), a compensation mechanism is provided on the peripheral outer walls of the two cams (11), the two compensation mechanisms are adapted to the ear plate (23), the two compensation mechanisms are symmetrically arranged on the two sides of the ear plate (23), and two backup mechanisms are provided on the inner wall of the shell (1), the two backup mechanisms are respectively connected to the peripheral outer walls of the two cams (11).

2. A constant force spring support device for pipe support according to claim 1, characterized in that: The positioning mechanism comprises two positioning tooth plates (2), the two positioning tooth plates (2) are fixedly mounted on the side of the housing (1), a positioning slide hole is provided on the inner wall of the side of the housing (1), one end of the pin shaft (18) extends outside the positioning slide hole and is sleeved with a positioning block (7), both sides of the positioning block (7) are provided with teeth, the end of the pin shaft (18) is provided with a thread groove, a positioning bolt (8) is threadedly mounted in the thread groove, two roller sleeves (24) are fixedly mounted on the opposite inner walls of the ear plate (23), rollers (25) are rotatably mounted on the peripheral outer walls of the two roller sleeves (24), and the two rollers (25) are respectively fitted with the peripheral outer walls of the two cams (11).

3. A constant force spring support device for pipeline support according to claim 1, characterized in that: The support mechanism comprises a top plate (16), a screw sleeve (17) is fixedly mounted on the top end of the steel pipe (10), a threaded pipe (15) is internally threadedly mounted on the screw sleeve (17), the bottom end of the threaded pipe (15) extends into the steel pipe (10), and the top end of the threaded pipe (15) is fixedly connected to the top plate (16).

4. A constant force spring support device for pipeline support according to claim 1, characterized in that: The support mechanism further comprises a main spring (14); two lower cross beams (13) are fixedly mounted on the opposite inner walls of the housing (1); threaded holes are provided at the bottoms of the two lower cross beams (13); the two threaded holes are arranged alternately; first connecting bolts (6) are threadedly mounted in the two threaded holes; a base bottom plate (4) is fixedly sleeved on the two first connecting bolts (6); a base cylinder (5) is fixedly mounted on the top of the base bottom plate (4); the ear plate (23) and the base bottom plate (23) are fixedly mounted on the top of the base bottom plate (4); The bottom of the plate (4) is provided with an avoidance hole, the bottom of the ear plate (23) is fixedly mounted with a positioning sleeve (26), the peripheral outer wall of the steel pipe (10) is in contact with the peripheral inner wall of the positioning sleeve (26), the main spring (14) is sleeved on the peripheral outer wall of the steel pipe (10), the top end of the main spring (14) is fixedly mounted on the bottom of the ear plate (23), and the bottom end of the main spring (14) extends into the base cylinder (5) and is fixedly mounted on the top of the base bottom plate (4).

5. A constant force spring support device for pipeline support according to claim 1, characterized in that: The compensation mechanism comprises a compensation spring (20), a mounting hole is provided on the side of the housing (1), a compensation spring seat (12) is slidably mounted in the mounting hole, the compensation spring (20) is sleeved on the peripheral outer wall of the compensation spring seat (12), one end of the compensation spring (20) is fixedly mounted on the side of the compensation spring seat (12), and the other end of the compensation spring (20) is fixedly mounted on the side inner wall of the housing (1), a screw hole is provided on the end inner wall of the compensation spring seat (12), a second connecting bolt (21) is threadedly mounted in the screw hole, a semicircular groove is provided on the peripheral outer wall of the cam (11), a wear reducing plate (30) is fixedly mounted in the semicircular groove, a small shaft (22) is rotatably mounted on the peripheral inner wall of the wear reducing plate (30), a connecting screw groove is provided on the peripheral outer wall of the small shaft (22), and the end of the second connecting bolt (21) is threadedly connected to the connecting screw groove.

6. A constant force spring support device for pipeline support according to claim 1, characterized in that: The backup mechanism comprises an arc sensor (31), an arc groove is formed on the arc surface of the cam (11), the arc sensor (31) is slidably arranged in the arc groove, two compression assemblies are arranged on the peripheral outer wall of the arc sensor (31), the compression assembly comprises a compression spring (34), a square cavity is formed in the cam (11), a first through hole is formed on the side inner wall of the square cavity, a sliding shaft (32) is slidably installed in the first through hole, one end of the sliding shaft (32) is connected to the arc sensor ( The outer wall of the sliding shaft (31) is fixedly connected to the outer wall of the sliding shaft (32), a square plate (33) is fixedly sleeved on the outer wall of the sliding shaft (32), the compression spring (34) is sleeved on the outer wall of the sliding shaft (32), one end of the compression spring (34) is fixedly connected to the side of the square plate (33), and the other end of the compression spring (34) is fixedly connected to the inner wall of the side of the square cavity, a wireless module (19) is fixedly installed on the inner wall of the side of the shell (1), and indicator lights (57) are provided on both sides of the shell (1).

7. A constant force spring support device for pipe support according to claim 6, characterized in that: The standby mechanism further comprises a rectangular frame (35), wherein the rectangular frame (35) is fixedly mounted on the peripheral outer wall of the cam (11), wherein the peripheral outer wall of the cam (11) is provided with a lifting groove, wherein a lifting block (36) is slidably mounted in the lifting groove, wherein a second through hole is provided in the side inner wall of the lifting groove, wherein one end of the sliding shaft (32) extends out of the second through hole and is fixedly connected to the side of the lifting block (36), wherein a sliding block (37) is slidably mounted in the rectangular frame (35), wherein both sides of the sliding block (37) are provided with square grooves, and wherein the two A guide shaft is fixedly mounted on the side inner wall of the square groove, a clamping block (39) is slidably mounted on the peripheral outer wall of the two guide shafts, a clamping spring (40) is sleeved on the peripheral outer wall of the two guide shafts, a clamping groove is opened on the opposite inner wall of the rectangular frame (35), an extrusion hole is opened on the side inner wall of the two slots, an extrusion shaft (41) is slidably mounted in the two extrusion holes, a square sensor (42) is fixedly mounted on the ends of the two extrusion shafts (41) close to each other, a pressing plate (43) is fixedly mounted on the ends of the two extrusion shafts (41) away from each other, and a linkage connecting rod (38) is rotatably mounted on the side of the sliding block (37).

8. A constant force spring support device for pipe support according to claim 7, characterized in that: The backup mechanism further comprises a mounting frame (54), a circular hole being formed on a side inner wall of the mounting frame (54), an electric telescopic rod (58) being fixedly mounted in the circular hole, an output end of the electric telescopic rod (58) extending into the mounting frame (54) and being fixedly connected to a square block (55), a backup spring (56) being fixedly mounted on a side of the square block (55), one end of the backup spring (56) being mounted on a side inner wall of the mounting frame (54), and the square block (55) being connected to the sliding block (37) via a telescopic assembly.

9. A constant force spring support device for pipe support according to claim 8, characterized in that: The telescopic assembly comprises a first connecting rod (28) and a second connecting rod (29), one end of the first connecting rod (28) being rotatably mounted on the side of the square block (55), the other end of the first connecting rod (28) being provided with a telescopic slot, the opposite inner walls of the telescopic slot being provided with a plurality of circular slots (53), one end of the second connecting rod (29) being rotatably mounted on the side of the sliding block (37), the other end of the second connecting rod (29) being slidably mounted in the telescopic slot, a limiting cavity being provided in the second connecting rod (29), a sliding hole being provided on the bottom inner wall of the limiting cavity, the sliding hole being provided in the inner wall of the sliding slot. A limit shaft (45) is slidably installed in the hole, one end of the limit shaft (45) extends into the limit cavity and is fixedly provided with a connecting slide plate (46), an outer wall of the circumference of the limit shaft (45) is sleeved with an ejection spring (47), an extrusion groove is provided on the side of the sliding block (37), a rectangular hole is provided on the top inner wall of the extrusion groove, a limit column (44) is fixedly installed on the side of the rectangular frame (35), the other end of the limit column (44) extends into the extrusion groove, and the bottom end of the limit shaft (45) extends into the rectangular hole and fits with the side of the limit column (44).

10. A constant force spring support device for pipeline support according to claim 9, characterized in that: The telescopic assembly further comprises a square slide bar (48), a square slide hole is provided on the top inner wall of the limit cavity, the square slide bar (48) is slidably mounted in the square slide hole, one end of the square slide bar (48) extends into the limit cavity and is fixedly connected to the side of the connecting slide plate (46), the other end of the square slide bar (48) extends into the telescopic slot and is rotatably mounted with two third connecting rods (51), the side of the second connecting rod (29) is provided with two rectangular slots, the opposite inner walls of the two rectangular slots are provided with guide slots, the four guide slots are slidably mounted with limit blocks (50), the opposite inner walls of the four limit blocks (50) are respectively fixedly mounted with two rectangular slide plates (49), the other ends of the two third connecting rods (51) are respectively rotatably mounted on the sides of the two rectangular slide plates (49), and the sides of the two rectangular slide plates (49) that are away from each other are fixedly mounted with clamping columns (52).

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