Multifunctional pressure monitoring supporting leg device based on swivel bridge supporting leg

Abstract

The invention relates to the technical field of bridge construction, in particular to a multifunctional pressure monitoring supporting leg device based on a swivel bridge supporting leg, which comprises a supporting cylinder arranged on a walking plate, a pressure measuring sensor arranged on the lower surface of the walking plate, the walking plate arranged on a slide way, an inner supporting plate and an outer supporting plate arranged on the slide way, side supporting plates are arranged on the two sides of the inner supporting plate and the two sides of the outer supporting plate. Limiting assemblies are arranged at the joints of the inner supporting plate and the side supporting plates and the joints of the outer supporting plate and the side supporting plates. The device has the beneficial effects that the stress condition of the supporting foot can be accurately sensed and monitored in real time, synchronous installation is completed when the supporting foot is constructed and installed, safety is improved in the bridge construction process, and reliability is provided for rotation construction.

Description

Technical Field

[0001] The invention relates to the field of bridge construction, and in particular to a multifunctional pressure monitoring support foot device based on a rotating bridge support foot. Background Art

[0002] At present, during the construction of rotating bridges, in order to ensure the safety of the bridge rotation, support legs and slideways are installed around the rotating ball joints, and slide plates are laid between the support legs and the slideways to reduce the rotational friction resistance and monitor the pressure generated on the load-bearing fulcrum of the support leg device itself.

[0003] The existing leg support device is unable to measure its own force condition, but converts the strain into pressure by monitoring it and obtains data by conversion. The data is inaccurate and cumbersome, and lacks persuasive and intuitive expression, and it is impossible to monitor the actual pressure value generated by the load-bearing fulcrum of the leg support device.

[0004] To this end, the present invention proposes a multifunctional pressure monitoring support foot device based on a swivel bridge support foot to solve the above-mentioned problem. Summary of the invention

[0005] The object of the present invention is to provide a multifunctional pressure monitoring support foot device based on a swivel bridge support foot to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multifunctional pressure monitoring support leg device based on a swivel bridge support leg, comprising a support tube, characterized in that: the support tube is arranged on a walking board, a pressure sensor is arranged on the lower surface of the walking board, the walking board is arranged on a slideway, an inner support plate and an outer support plate are arranged on the slideway, side support plates are arranged on both sides of the inner support plate and the outer support plate, and limiting components are arranged at the connections between the inner support plate, the outer support plate and the side support plate.

[0007] Preferably, the support tubes are provided with two groups, the two groups of support tubes are arranged adjacent to each other, the two groups of support tubes are fixed on the walking board, the two groups of support tubes are fixed with supporting plates, a side support frame is arranged between the support tubes and the walking board, one end of the side support frame is fixedly connected to the support tube, and the other end of the side support frame is fixedly connected to the walking board.

[0008] Preferably, mounting holes are provided at the four corners of the surface of the walking plate, screws are fixed at the four corners of the upper surface of the pressure sensor, the screws are inserted into the mounting holes, nuts are tightened and fixed by partial welding, internal support columns are fixed on the inner ring wall and the outer ring wall of the walking plate, and there are several internal support columns, which are evenly distributed on the surface of the walking plate, the pressure sensor is connected to the pressure measuring instrument through an acquisition line, and the pressure measuring instrument is internally provided with a linear amplifier, an A / D converter and a microprocessor (CPU).

[0009] Preferably, a bottom plate is fixed on the side of the inner support plate and the outer support plate facing away from the walking plate, a guide column is fixed on the slideway, the guide column and the bottom plate are slidably connected and nuts are tightened on the guide column, an inner slide groove is provided on the side of the inner support plate and the outer support plate facing the walking plate, the inner support column and the inner slide groove are slidably connected, a sand outlet cylinder is fixed on the surface of the outer support plate facing away from the walking plate, a cover plate is provided at the opening of the sand outlet cylinder, an inner cavity is formed on the inner side of the inner support plate, the outer support plate and the two groups of side support plates, and the inner cavity is filled with quartz sand.

[0010] Preferably, slots are provided at the upper ends of both sides of the inner support plate and the outer support plate, and the limit assembly is located at the outside of the slots, an insert plate is fixed on the surface of the side support plate facing the walking plate, the insert plate is arranged close to the upper end of the side support plate, the insert plate is inserted into the slot, connecting plates are fixed on both sides of the side support plate, guide holes are provided on the surface of the connecting plate, a bottom block is fixed on the slide, the bottom block is located on both sides of the bottom plate, vertical rods are fixed on the bottom block, the vertical rods are inserted into the guide holes and tightened with nuts, two groups of hanging ears are fixed on the upper surface of the side support plate, a number of evenly distributed diagonal support rods are arranged between the side support plate and the slide, one end of the diagonal support rod is fixedly connected to the side support plate, and the other end of the diagonal support rod is fixedly connected to the slide.

[0011] Preferably, the limit assembly includes an outer ring, a rotating block, a rubber block, a limit block, an inner rotating handle and an outer rotating handle. The outer ring is fixed on the surfaces of the inner support plate and the outer support plate. A number of rubber blocks are fixed on the inner wall of the outer ring at equal intervals. A ball groove and a through groove are provided on the inner side of the outer ring. The ball groove is in a circular shape, and the ball groove is circular with the center of the outer ring. There are a number of through grooves, and the through grooves are arranged in a circle with the center of the outer ring as the center. A limit block is provided in the through groove, and the limit block is located next to the rubber block.

[0012] Preferably, the limit block is inserted into the through groove, elastic vertical bars are fixed on the four outer walls of the limit block, the other side of the elastic vertical bar is fixedly connected to the inner wall of the through groove, one end of the limit block is chamfered, and a plurality of evenly distributed abutment bars are fixed at the other end of the limit block.

[0013] Preferably, a rotating block is rotatably arranged inside the outer ring, and a plurality of evenly distributed movable balls are arranged on the surface of one side of the rotating block. The movable balls are embedded in the ball grooves and are arranged to roll. An inner turning handle is fixedly arranged on the surface of the other side of the rotating block, and an outer turning handle is hinged at the end face of the inner turning handle. A storage cavity is opened at the center of the surface of the inner turning handle, and an iron block ring is fixed at the outer end of the storage cavity.

[0014] Preferably, a rotating shaft is rotatably provided on the surface of the outer handle, a magnetic ring is fixed on the surface of the outer handle, a rubber ring is laid on the surface of the rotating shaft, the rotating shaft is inserted into the storage cavity, and the magnetic ring attracts the iron block ring.

[0015] Preferably, large grooves and small grooves are provided on the periphery of the rotating block, and a plurality of large grooves and small grooves are provided. The large grooves and small grooves are staggered on the periphery of the rotating block, and the inner concave depth of the large groove is greater than the inner concave depth of the small groove. A chamfer is provided on the side of the large groove away from the inner turning handle, and the limit block can extend from the large groove, and the rubber block is completely embedded in the small groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes a multifunctional pressure monitoring support foot device based on a rotating bridge support foot, which can accurately sense and monitor the stress condition of the support foot itself in real time, and complete the installation simultaneously during the construction and installation of the support foot, thereby improving the safety during the bridge construction process and providing reliability for the rotation construction. At the same time, the set support foot as a whole can be used as a temporary support and as a safety support leg during the rotation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the pressure measurement process of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a side view of the overall structure of the present invention; Figure 4 It is a partial structural schematic diagram of the present invention; Figure 5 for Figure 4 A magnified view of the structure at center; Figure 6 It is a schematic diagram of the structure of the limit assembly of the present invention; Figure 7 It is a schematic diagram of the structure of the limit block of the present invention; Figure 8 This is a schematic diagram of the structure of the rotating block of the present invention; Fig. 9 It is a schematic diagram of the side support plate structure of the present invention; Fig.10 It is a schematic diagram of the board walking structure of the present invention; Fig.11 This is a schematic diagram of the quartz sand structure of the present invention; Fig.12 It is a schematic diagram of the structure of the skateboard of the present invention.

[0018] In the figure: 1. pressure sensor; 2. pressure measuring instrument; 3. linear amplifier; 4. A / D converter; 5. microprocessor (CPU); 6. display screen; 7. support tube; 8. support plate; 9. walking board; 10. diagonal support rod; 11. slideway; 12. side support plate; 13. inner support plate; 14. bottom plate; 15. limit assembly; 16. side support frame; 17. hanging ear; 18. outer support plate; 19. sand discharge tube; 20. cover plate; 21. guide column; 22. inner support column; 23. inner slide groove; 24. connection plate; 25, inner cavity; 26, bottom block; 27, vertical rod; 28, outer ring; 29, rubber block; 30, rotating block; 31, iron block ring; 32, storage cavity; 33, inner turning handle; 34, rotating shaft; 35, rubber ring; 36, magnetic ring; 37, outer turning handle; 38, slot; 39, limit block; 40, ball groove; 41, large groove; 42, small groove; 43, elastic vertical bar; 44, through groove; 45, abutment bar; 46, movable ball; 47, plug board; 49, quartz sand; 50, skateboard. DETAILED DESCRIPTION

[0019] Example 1: Please refer to Figures 1 to 12 The present invention provides a technical solution: a multifunctional pressure monitoring support foot device based on a swivel bridge support foot, comprising a support tube 7, the support tube 7 is arranged on a walking board 9, a pressure sensor 1 is arranged on the lower surface of the walking board 9, the walking board 9 is arranged on a slideway 11, an inner support plate 13 and an outer support plate 18 are arranged on the slideway 11, side support plates 12 are arranged on both sides of the inner support plate 13 and the outer support plate 18, and a limit assembly 15 is arranged at the connection between the inner support plate 13, the outer support plate 18 and the side support plate 12; Mounting holes are provided at the four corners of the surface of the walking plate 9, screws are fixed at the four corners of the upper surface of the pressure sensor 1, the screws are inserted into the mounting holes and tightened with nuts and fixed by partial welding, inner support columns 22 are fixed on the inner ring wall and the outer ring 28 wall of the walking plate 9, and a plurality of inner support columns 22 are provided, and the plurality of inner support columns 22 are evenly distributed on the surface of the walking plate 9, the pressure sensor 1 is connected to the pressure measuring instrument through the acquisition line, and the pressure measuring instrument is provided with a linear amplifier 3, an A / D converter 4 and a microprocessor (CPU); When in use, the device can be installed with a pressure sensor 1 under the walking board 9 of the support leg, wherein the pressure sensor 1 plays the role of converting the pressure value into a corresponding measurable electrical signal. When the support leg is under pressure, under the action of pressure, the pressure is transmitted to the pressure sensor 1, so that the elastic body of the pressure sensor 1 is deformed, and the strain gauge bridge attached to the elastic body loses balance, and outputs an electrical signal proportional to the weight value. The signal is amplified by the linear amplifier 3 in the pressure measuring instrument, and then converted into a digital signal through A / D. The weight signal is processed by the microprocessor (CPU) of the instrument to directly display the weight data. Holes are reserved on the surface of the walking board 9 for connecting the collection line. When the overall installation of the support leg is completed, the inner support plate 13, the outer support plate 18 and the side support plate 12 need to be removed as a whole.

[0020] Embodiment 2: On the basis of embodiment 1, the inner support plate 13 and the outer support plate 18 are both fixed with a bottom plate 14 on the side facing away from the running board 9, a guide column 21 is fixed on the slideway 11, the guide column 21 and the bottom plate 14 are slidably connected and a nut is screwed on the guide column 21, the inner support plate 13 and the outer support plate 18 are both provided with an inner slide groove 23 on the side facing the running board 9, the inner support column 22 and the inner slide groove 23 are slidably connected, a sand outlet tube 19 is fixed on the surface of the outer support plate 18 on the side facing away from the running board 9, a cover plate 20 is provided at the opening of the sand outlet tube 19, an inner cavity 25 is formed inside the inner support plate 13, the outer support plate 18 and the two groups of side support plates 12, and the inner cavity 25 is filled with quartz sand 49; When using, combine Fig.11 and Fig.12 After the inner support plate 13, the outer support plate 18 and the side support plate 12 are set, the quartz sand 49 is filled in the inner cavity 25 thereof, and then the support foot is moved by the crane to make the inner support column 22 and the inner slide groove 23 on the walking plate 9 correspond to each other, so that the walking plate 9 as a whole enters the inner cavity 25 and is tightly pressed against the quartz sand 49, thereby the support foot can play a supporting role and improve the stability of the bridge construction when the bridge rotation operation is not performed; when the bridge rotation construction is performed, the quartz sand 49 in the inner cavity 25 is discharged through the sand discharge tube 19, so that there is a space between the pressure sensor 1 and the slideway 11, and then the side support plate 12 is removed, and at this time a polytetrafluoroethylene slide plate 50 is placed in the space to reduce the friction of the support foot device on the slideway 11, so as to start the rotation safety support function, and the quartz sand 49 has good stability and bearing capacity, and can provide additional support and buffering for the support foot, further improving the stability and safety of the entire device; Slots 38 are provided at the upper ends of both sides of the inner support plate 13 and the outer support plate 18, and the limit assembly 15 is located at the outside of the slots 38. A plug plate 47 is fixed on the surface of the side support plate 12 facing the walking plate 9, and the plug plate 47 is arranged close to the upper end of the side support plate 12. The plug plate 47 is inserted into the slot 38. Connecting blocks are fixed on both sides of the side support plate 12, and guide holes are provided on the surfaces of the connecting blocks. A bottom block 26 is fixed on the slideway 11. The bottom block 26 is located on both sides of the bottom plate 14. Vertical rods 27 are fixed on the bottom block 26. The vertical rods 27 are inserted into the guide holes and tightened with nuts. Two groups of hanging ears 17 are fixed on the upper surface of the side support plate 12. A plurality of evenly distributed diagonal support rods 10 are arranged between the side support plate 12 and the slideway 11. One end of the diagonal support rod 10 is fixedly connected to the side support plate 12, and the other end of the diagonal support rod 10 is fixedly connected to the slideway 11. When in use, after the bottom plates 14 on the inner support plates 13 and the outer support plates 18 are correspondingly inserted into the guide columns 21 and the nuts are tightened, the installation of the inner support plates 13 and the outer support plates 18 is achieved. Subsequently, the side support plates 12 are vertically moved by means of a crane and the provided hanging ears 17, and the insert plates 47 are correspondingly inserted into the slots 38, and the vertical rods 27 and the connecting plates 24 are made to correspond, and the nuts are tightened on the vertical rods 27. The diagonal support rods 10 can enhance the stability and load-bearing capacity of the entire device, and prevent deformation or damage when the support legs are subjected to excessive force.

[0021] Embodiment 3: On the basis of embodiment 2, the limit assembly 15 includes an outer ring 28, a rotating block 30, a rubber block 29, a limit block 39, an inner rotating handle 33 and an outer rotating handle 37. The outer ring 28 is fixed to the surfaces of the inner support plate 13 and the outer support plate 18. A plurality of rubber blocks 29 are fixed to the inner wall of the outer ring 28 and are distributed at equal distances. A ball groove 40 and a through groove 44 are provided on the inner side of the outer ring 28. The ball groove 40 is annular. The ball groove 40 is circular with the center of the outer ring 28 as a circle. A plurality of through grooves 44 are provided. The plurality of through grooves 44 are arranged in a circle with the center of the outer ring 28 as the center. A limit block 39 is provided in the through groove 44. The limit block 39 is located next to the rubber block 29. The limit block 39 is inserted into the through groove 44. Elastic vertical bars 43 are fixed on the outer walls of the four sides of the limit block 39. The other side of the elastic vertical bar 43 is fixedly connected to the inner wall of the through groove 44. One end of the limit block 39 is chamfered. A plurality of evenly distributed abutment bars 45 are fixed at the other end of the limit block 39. A large groove 41 and a small groove 42 are provided at the periphery of the rotating block 30. A plurality of large grooves 41 and a plurality of small grooves 42 are provided. The large grooves 41 and the small grooves 42 are staggered on the periphery of the rotating block 30. The inner concave depth of the large groove 41 is greater than the inner concave depth of the small groove 42. A chamfer is provided on the side of the large groove 41 away from the inner turning handle 33. The limit block 39 can extend from the large groove 41, and the rubber block 29 is completely embedded in the small groove 42. When in use, when the plug plate 47 is inserted into the slot 38, the rubber block 29 and the limit block 39 are both located in the large groove 41, and the elastic vertical bar 43 is in a natural state. When the plug plate 47 is completely inserted into the slot 38, at this time, by holding the rotating shaft 34 and rotating it, the rotating block 30 will be driven to rotate, and then the limit block 39 will be pressed, so that the limit block 39 moves toward the plug plate 47, so that the abutment strip 45 on the end face of the limit block 39 presses against the plug plate 47, and then the plug plate 47 is limited and locked. At the same time, the rubber block 29 will move into the small groove 42. Since the rubber block 29 is completely embedded in the small groove 42, it can provide resistance to prevent the rotating block 30 from rotating privately. At this time, the elastic vertical bar 43 will be stretched by force and store elastic potential energy; When contact limiting is required, the rotating shaft 34 is rotated to drive the rotating block 30 to rotate, so that the large groove 41 rotates to the limiting block 39 and the rubber block 29. Under the rebound effect of the elastic vertical bar 43, the limiting block 39 will extend out of the large groove 41, thereby canceling the limiting of the plug plate 47, and the rubber block 29 will be located in the large groove 41; A rotating block 30 is rotatably arranged inside the outer ring 28, and a plurality of evenly distributed movable balls 46 are arranged on the surface of one side of the rotating block 30. The movable balls 46 are embedded in the ball groove 40 and are arranged to roll. An inner turning handle 33 is fixedly arranged on the surface of the other side of the rotating block 30, and an outer turning handle 37 is hinged at the end face of the inner turning handle 33. A storage cavity 32 is opened at the center of the surface of the inner turning handle 33, and an iron block ring 31 is fixed at the outer end of the storage cavity 32. A rotating shaft 34 is rotatably arranged on the surface of the outer turning handle 37, and a magnetic ring 36 is fixed on the surface of the outer turning handle 37. A rubber ring 35 is laid on the surface of the rotating shaft 34. The rotating shaft 34 is inserted into the storage cavity 32, and the magnetic ring 36 attracts the iron block ring 31. During use, when the rotating block 30 rotates, the movable ball 46 is synchronously rolled in the ball groove 40 to provide support and guidance for the rotation of the rotating block 30, thereby improving the stability of the rotating block 30. By turning the outer turning handle 37, the rotating shaft 34 on the surface of the outer turning handle 37 can be inserted into the storage cavity 32. At the same time, the magnetic ring 36 is attracted to the iron block ring 31 to prevent the outer turning handle 37 from moving randomly. The rubber ring 35 is provided to provide a buffer to improve the stability during operation.

[0022] Working principle: In actual use, the force condition of the support leg itself is monitored in real time through the pressure sensor 1, and the real-time display of data is realized in conjunction with the pressure meter connected through the acquisition line, and then displayed through the display screen 6 on the pressure meter, thereby realizing real-time monitoring of the force condition of the support leg itself. At the same time, during the construction of the rotating bridge, the support leg can be used as a temporary support to offset the safety hazard caused by the unbalanced moment of the bridge. When the bridge is rotated, the quartz sand 49 is taken out and the polytetrafluoroethylene slide plate 50 is put in to reduce the friction of the support leg device on the slideway 11, and it can also be used as a safety support leg during the rotation process.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional pressure monitoring foot support device based on a rotating bridge foot support, comprising: It includes a support tube (7), characterized in that: the support tube (7) is arranged on a walking plate (9), a pressure sensor (1) is arranged on the lower surface of the walking plate (9), the walking plate (9) is arranged on a slideway (11), an inner support plate (13) and an outer support plate (18) are arranged on the slideway (11), side support plates (12) are arranged on both sides of the inner support plate (13) and the outer support plate (18), and a limiting component (15) is arranged at the connection between the inner support plate (13), the outer support plate (18) and the side support plate (12).

2. According to claim 1, a multifunctional pressure monitoring foot support device based on a rotating bridge foot support, characterized in that: The support tubes (7) are provided with two groups, the two groups of support tubes (7) are arranged adjacent to each other, the two groups of support tubes (7) are fixed on the walking plate (9), the two groups of support tubes (7) are fixed with a supporting plate (8), a side support frame (16) is arranged between the support tubes (7) and the walking plate (9), one end of the side support frame (16) is fixedly connected to the support tube (7), and the other end of the side support frame (16) is fixedly connected to the walking plate (9).

3. According to claim 1, a multifunctional pressure monitoring foot support device based on a rotating bridge foot support, characterized in that: The surface of the walking plate (9) is provided with mounting holes at the four corners, and screws are fixed at the four corners of the upper surface of the pressure sensor (1). The screws are inserted into the mounting holes and tightened with nuts and fixed by partial welding. Internal support columns (22) are fixed on the inner ring wall and the outer ring (28) wall of the walking plate (9). There are a plurality of internal support columns (22), and the plurality of internal support columns (22) are evenly distributed on the surface of the walking plate (9). The pressure sensor (1) is connected to the pressure measuring instrument through an acquisition line, and the pressure measuring instrument is provided with a linear amplifier (3), an A / D converter (4) and a microprocessor (CPU) inside.

4. The multifunctional pressure monitoring foot support device based on the rotating bridge foot according to claim 1 is characterized in that: A bottom plate (14) is fixed on the side of the inner support plate (13) and the outer support plate (18) facing away from the running board (9), a guide column (21) is fixed on the slideway (11), the guide column (21) and the bottom plate (14) are slidably connected and a nut is screwed on the guide column (21), an inner slide groove (23) is provided on the side of the inner support plate (13) and the outer support plate (18) facing the running board (9), the inner support column (22) and the inner slide groove (23) are slidably connected, a sand outlet tube (19) is fixed on the surface of the side of the outer support plate (18) facing away from the running board (9), and a cover plate (20) is provided at the opening of the sand outlet tube (19), and an inner cavity (25) is formed inside the inner support plate (13), the outer support plate (18) and the two groups of side support plates (12), and the inner cavity (25) is filled with quartz sand (49).

5. The multifunctional pressure monitoring foot support device based on the rotating bridge foot according to claim 4 is characterized in that: The inner support plate (13) and the outer support plate (18) are provided with slots (38) at the upper ends of both sides, and the limit assembly (15) is located outside the slots (38). A plug plate (47) is fixed on the surface of the side support plate (12) facing the walking plate (9), and the plug plate (47) is arranged close to the upper end of the side support plate (12). The plug plate (47) is inserted into the slots (38). Connecting plates (24) are fixed on both sides of the side support plate (12), and guide holes are provided on the surface of the connecting plates (24). The slideway (11) is fixed A bottom block (26) is provided, the bottom block (26) is located on both sides of the bottom plate (14), a vertical rod (27) is fixed on the bottom block (26), the vertical rod (27) is inserted into the guide hole and is tightened with a nut, two groups of hanging ears (17) are fixed on the upper surface of the side support plate (12), a plurality of evenly distributed oblique support rods (10) are arranged between the side support plate (12) and the slideway (11), one end of the oblique support rod (10) is fixedly connected to the side support plate (12), and the other end of the oblique support rod (10) is fixedly connected to the slideway (11).

6. The multifunctional pressure monitoring foot support device based on the rotating bridge foot according to claim 1 is characterized in that: The limit assembly (15) comprises an outer ring (28), a rotating block (30), a rubber block (29), a limit block (39), an inner rotating handle (33) and an outer rotating handle (37). The outer ring (28) is fixed on the surface of the inner supporting plate (13) and the outer supporting plate (18). A plurality of rubber blocks (29) are fixed on the inner wall of the outer ring (28) and are distributed at equal intervals. A ball groove (40) and a through groove (44) are provided on the inner side of the outer ring (28). The ball groove (40) is annular. The ball groove (40) is circular with the center of the outer ring (28). A plurality of through grooves (44) are provided. The plurality of through grooves (44) are arranged in a circle with the center of the outer ring (28) as the center. A limit block (39) is provided in the through groove (44). The limit block (39) is located next to the rubber block (29).

7. The multifunctional pressure monitoring foot support device based on the rotating bridge foot according to claim 6 is characterized in that: The limit block (39) is inserted into the through groove (44), and elastic vertical bars (43) are fixed on the four outer walls of the limit block (39), and the other side of the elastic vertical bar (43) is fixedly connected to the inner wall of the through groove (44). One end of the limit block (39) is chamfered, and the other end of the limit block (39) is fixed with a plurality of evenly distributed abutment bars (45).

8. The multifunctional pressure monitoring foot support device based on the rotating bridge foot according to claim 6 is characterized in that: A rotating block (30) is rotatably arranged inside the outer ring (28), a plurality of evenly distributed movable balls (46) are arranged on the surface of one side of the rotating block (30), the movable balls (46) are embedded in the ball grooves (40) and are arranged to roll, an inner turning handle (33) is fixedly arranged on the surface of the other side of the rotating block (30), an outer turning handle (37) is hinged at the end face of the inner turning handle (33), a storage cavity (32) is opened at the center of the surface of the inner turning handle (33), and an iron block ring (31) is fixed at the outer end of the storage cavity (32).

9. The multifunctional pressure monitoring foot support device based on the rotating bridge foot according to claim 8, characterized in that: The surface of the outer handle (37) is rotatably provided with a rotating shaft (34), the surface of the outer handle (37) is fixed with a magnetic ring (36), the surface of the rotating shaft (34) is paved with a rubber ring (35), the rotating shaft (34) is inserted into the storage cavity (32), and the magnetic ring (36) attracts the iron block ring (31).

10. The multifunctional pressure monitoring foot support device based on the rotating bridge foot according to claim 6, characterized in that: The outer periphery of the rotating block (30) is provided with a large groove (41) and a small groove (42), and a plurality of large grooves (41) and a plurality of small grooves (42) are provided. The large grooves (41) and the small grooves (42) are staggeredly distributed on the outer periphery of the rotating block (30). The inner concave depth of the large groove (41) is greater than the inner concave depth of the small groove (42). A chamfer is provided on a side of the large groove (41) away from the inner rotating handle (33). The limit block (39) can extend from the large groove (41), and the rubber block (29) is completely embedded in the small groove (42).

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