Bridge gravity center section stress monitoring device

Abstract

The utility model belongs to the technical field of bridge stress monitoring, and particularly relates to a bridge gravity center section stress monitoring device which comprises a base, a lifting cylinder arranged at the top of the base, a movable rod arranged at the top of the lifting cylinder and a detection shell arranged at the top of the movable rod. A through groove is formed in the upper portion of the oil storage box, two racks are installed in the through groove in a sliding mode, moving plates are fixedly installed at the tops of the racks and located in the through groove, and T-shaped grooves are symmetrically formed in the sides, away from each other, of the two moving plates. The sliding block does not shake, lubricating oil is prevented from flowing into the connecting pipe from a gap between the sealing gasket and the inner wall of the oil storage box, waste of the lubricating oil is prevented, bolts are not needed when the detection assembly is dismounted and mounted, and the dismounting and mounting mode is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge stress monitoring, and particularly relates to a bridge gravity center section stress monitoring device. Background Technique

[0002] Stress detection includes surface stress detection of workpieces, stress detection at a certain depth, and qualitative and quantitative analysis of stress.

[0003] For example, a Chinese patent with the publication number CN221147920U discloses a bridge stress monitoring device, which includes a base; a lifting cylinder arranged on the top of the base; a movable rod arranged on the top of the lifting cylinder; a monitoring shell arranged on the top of the movable rod; monitoring components arranged on the left and right sides of the monitoring shell; and an oil filling mechanism arranged on the back of the monitoring shell. The oil filling mechanism includes an oil storage tank and a connecting pipe. The oil storage tank is fixedly installed on the back of the monitoring shell and has an opening facing forward. The connecting pipe is arranged inside the monitoring shell and is communicated with the oil storage tank. In the utility model, an appropriate amount of lubricating oil is stored in the oil storage tank in advance. By pulling the pull ring, the pull ring drives the pull rod to move upward, and the pull rod drives the sealing block to move upward, so that the connecting pipe is opened, and the lubricating oil flows to the meshing part of the gear and the rack to achieve the purpose of lubrication. The operation is simple, and the service life of the device is improved.

[0004] The above patent has the following problems:

[0005] When the above patent is in use, there are some disadvantages. For example, the spring has a certain elasticity. When the device is vibrated, the sealing block is likely to shake under the action of the spring force, which will cause the lubricating oil in the oil storage tank to flow into the connecting pipe through the gap between the sealing block and the inner wall of the oil storage tank, resulting in excessive use of the lubricating oil and waste. In addition, the monitoring component is connected to the mounting plate by bolts. In a humid environment, the bolts are prone to rust, and the rusty bolts are very difficult to disassemble. In view of this, we propose a bridge gravity center section stress monitoring device. Content of the Utility Model

[0006] The purpose of the utility model is to provide a bridge gravity center section stress monitoring device to solve the problems put forward in the above background technique.

[0007] In view of this, the utility model provides a bridge gravity center section stress monitoring device, which includes a base. A lifting cylinder is arranged on the top of the base. A movable rod is arranged on the top of the lifting cylinder. A detection shell is arranged on the top of the movable rod. It further includes:

[0008] A through groove is provided in the detection shell. Two racks are slidably installed in the through groove. A moving plate is fixedly installed at the top of the rack and located in the through groove. T-shaped grooves are symmetrically provided on the sides of the two moving plates away from each other. Detection components are provided on the sides of the two moving plates away from each other. A T-shaped plate fixed to the detection component is inserted and installed in the T-shaped groove. A gear is rotatably installed in the through groove between the two racks.

[0009] A limiting component is located on the base and is used to limit the four T-shaped plates.

[0010] A driving component is located in the detection shell and is used to drive the gear to rotate.

[0011] An oil storage box is fixedly installed at the rear of the detection shell. A threaded rod is rotatably installed in the oil storage box. A sliding block is slidably installed on the inner wall of the oil storage box and located on the threaded rod. A connecting pipe is fixedly installed at the bottom of the oil storage box. One end of the connecting pipe penetrates through the rear side of the detection shell and is fixedly installed with an arc-shaped oil outlet pipe. Both ends of the arc-shaped oil outlet pipe penetrate through the bottom of the inner cavity of the detection shell and extend into the through groove.

[0012] In this technical solution, during use, when the staff uses it, the whole device is placed at the lower end of the bridge to be detected. The lifting cylinder drives the detection shell to move upward through the movable rod, so as to facilitate the device to fit to the lower end of the bridge. Subsequently, through the provided driving component, the driving component drives the gear to rotate. Under the meshing action, the gear will drive the two racks to move. Then, the two racks will drive the two moving plates away from each other respectively. Then, the two detection components will also move away from each other, so that the detection components are displaced out of the detection shell. The two detection components will detect the bridge center of gravity section, and the detection results are sent to the data processing center for data comparison.

[0013] When it is necessary to disassemble and repair the detection component, through the provided limiting component, the limiting of the T-shaped plate by the limiting component is released. Subsequently, the detection component can be lifted by hand, and the detection component will drive the two T-shaped plates to move upward, so that the T-shaped plates are completely displaced out of the corresponding T-shaped grooves. At this time, one of the detection components will be disassembled. Through the above operations, the other detection component can be disassembled, and through the reverse operations of the above operations, the detection component can be installed. This process does not require the use of bolts, and the disassembly and installation are more convenient.

[0014] When it is necessary to apply lubricating oil to the gear, the staff can rotate the threaded rod forward by hand. Under the action of the thread, the threaded rod will drive the sliding block to move upward, so that the outlet of the oil storage box is opened. Subsequently, the lubricating oil inside the oil storage box will enter the connecting pipe from the outlet of the oil storage box. Then, the lubricating oil in the connecting pipe will enter the arc-shaped oil outlet pipe. Then, the lubricating oil in the arc-shaped oil outlet pipe will be discharged from both ends of the arc-shaped oil outlet pipe and drip onto the gear. During the rotation of the gear, the rack will also be coated with lubricating oil. Subsequently, the staff can rotate the threaded rod backward by hand. Under the action of the thread, the threaded rod will drive the sliding block to move downward, so that the bottom of the sliding block is in close contact with the bottom of the inner cavity of the oil storage box, thereby sealing the outlet of the oil storage box. Without external force, the sliding block will not shake.

[0015] In the above technical solution, further, the limiting component includes:

[0016] Two baffles, the two baffles are respectively inserted and installed on the left and right sides of the detection shell. The bottom of the baffle is in contact with the top of the T-shaped plate and the moving plate. An insertion plate is inserted into the baffle, and one end of the insertion plate penetrates the detection shell and extends to the outside.

[0017] In this technical solution, when it is necessary to disassemble and repair the detection component, the staff pulls the insertion plate by hand, so that the insertion plate is completely displaced from the detection shell and the baffle. At this time, the baffle will be released from fixation. Then, the staff pulls the baffle by hand, so that the baffle is completely pulled out of the detection shell. At this time, the T-shaped plate will be released from the limit, so that the T-shaped plate will not move up and down in the T-shaped groove.

[0018] In the above technical solution, further, the insertion plate is in plug-in fit with the detection shell.

[0019] In this technical solution, ensure that the insertion plate can be inserted into the detection shell

[0020] In the above technical solution, further, the driving component includes:

[0021] A motor, the motor is fixedly installed at the bottom of the inner cavity of the detection shell and directly above the gear. The output end of the motor penetrates the bottom of the inner cavity of the detection shell and extends into the through groove, and the output end of the motor is coaxially connected with the gear.

[0022] In this technical solution, start the motor, and the output shaft of the motor will drive the gear to rotate.

[0023] In the above technical solution, further, the output shaft of the motor is rotatably connected with the detection shell and the through groove

[0024] In this technical solution, ensure that the motor can operate normally.

[0025] In the above technical solution, further, a collection box is inserted and installed directly below the gear in the through groove. One end of the collection box penetrates through one side of the through groove and extends to the outside, and the moving plate is slidably connected to the through groove.

[0026] In this technical solution, it is ensured that the excess lubricating oil can flow into the collection box for collection. The collection box can be pulled out of the through groove for cleaning; it is ensured that the moving plate can slide in the through groove.

[0027] In the above technical solution, further, the rack engages with the gear, the sliding block is threadedly connected to the threaded rod. The top end of the threaded rod penetrates through the top of the inner cavity of the oil storage box and extends to the outside and is fixedly installed with a handle, and a sealing gasket is fixedly installed at the bottom of the sliding block.

[0028] In this technical solution, under the action of meshing, it is ensured that the rotation of the gear can drive the displacement of the rack; under the action of the thread, it is ensured that the rotation of the threaded rod can drive the displacement of the sliding block; it is ensured that the threaded rod can be rotated through the handle, which is more convenient; under the action of the sealing gasket, the sealing effect of the sliding block on the discharge port of the oil storage box is better.

[0029] The beneficial effects of the present utility model are:

[0030] 1. For this bridge center-of-gravity cross-section stress monitoring device, through the cooperation among the oil storage box, the threaded rod, the sliding block and the sealing gasket, after the sliding block and the sealing gasket seal the discharge port of the oil storage box, under the action of the threaded rod, the sliding block will not shake, avoiding the lubricating oil from flowing into the connecting pipe through the gap between the sealing gasket and the inner wall of the oil storage box, and preventing waste of lubricating oil.

[0031] 2. For this bridge center-of-gravity cross-section stress monitoring device, through the cooperation among the moving plate, the T-shaped groove, the T-shaped plate and the limiting component, when disassembling and installing the detection component, bolts are not required, and the disassembly and installation method is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is the overall structural schematic diagram of the present utility model;

[0033] Figure 2 is the regional structural schematic diagram of the detection shell in the present utility model;

[0034] Figure 3 is one of the internal structural schematic diagrams of the detection shell in the present utility model;

[0035] Figure 4 is the internal structural schematic diagram of the oil storage box in the present utility model;

[0036] Figure 5This is the second schematic diagram of the internal structure of the detection shell in the present utility model;

[0037] Figure 6 This is the first schematic diagram of the sectional structure of the detection shell in the present utility model;

[0038] Figure 7 This is the second schematic diagram of the sectional structure of the detection shell in the present utility model;

[0039] Figure 8 This is the schematic diagram of the regional structure of the gear in the present utility model;

[0040] Figure 9 This is the exploded structure schematic diagram of the baffle, detection shell and plug board in the present utility model.

[0041] The markings in the figure are indicated as:

[0042] 1. Base; 2. Lifting cylinder; 3. Movable rod; 4. Detection shell; 5. Detection component; 6. Baffle; 7. Oil storage box; 8. Connecting pipe; 9. Plug board; 10. Oil outlet pipe; 11. Gear; 12. Motor; 13. Rack; 14. Collection box; 15. Sliding block; 16. Threaded rod; 17. Through groove; 18. Moving plate; 19. T-shaped plate; 20. T-shaped groove. Specific implementation manners

[0043] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by the present application.

[0044] In the description of the present application, it should be noted that the terms used here are only for describing specific implementation manners, rather than intending to limit the exemplary embodiments according to the present application. For the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant fields may not be discussed in detail, but in appropriate cases, the technologies, methods and devices should be regarded as a part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0045] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0046] It should be noted that in the description of this application, the orientation or positional relationships indicated by the orientation terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing this application and simplifying the description. Without contrary instructions, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of this application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0047] It should be noted that in this application, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of this application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0048] Embodiment 1:

[0049] Please refer to Figure 1 - Figure 9 as shown, this embodiment provides a stress monitoring device for the centroid section of a bridge, including a base 1. A lifting cylinder 2 is arranged on the top of the base 1. A movable rod 3 is arranged on the top of the lifting cylinder 2. A detection shell 4 is arranged on the top of the movable rod 3, and further includes:

[0050] A through groove 17 is provided in the detection housing 4. Two racks 13 are slidably installed in the through groove 17. A moving plate 18 is fixedly installed at the top of the rack 13 and within the through groove 17. T-shaped grooves 20 are symmetrically formed on the sides of the two moving plates 18 away from each other. Detection assemblies 5 are provided on the sides of the two moving plates 18 away from each other. A T-shaped plate 19 fixed to the detection assembly 5 is inserted and installed in the T-shaped groove 20. A gear 11 is rotatably installed within the through groove 17 and between the two racks 13.

[0051] A limiting assembly, which is located on the base 1 and is used to limit the four T-shaped plates 19.

[0052] A driving assembly, which is located within the detection housing 4 and is used to drive the gear 11 to rotate.

[0053] An oil storage box 7 is fixedly installed at the rear side of the detection housing 4. A threaded rod 16 is rotatably installed within the oil storage box 7. A sliding block 15 is slidably installed on the inner wall of the oil storage box 7 and on the threaded rod 16. A connecting pipe 8 is fixedly installed at the bottom of the oil storage box 7. One end of the connecting pipe 8 penetrates through the rear side of the detection housing 4 and is fixedly installed with an arc-shaped oil outlet pipe 10. Both ends of the arc-shaped oil outlet pipe 10 penetrate through the bottom of the inner cavity of the detection housing 4 and extend into the through groove 17.

[0054] Among them, during use, when the staff uses it, the entire device is placed at the lower end of the centroid section of the bridge to be detected. The lifting cylinder 2 drives the detection housing 4 to move upward through the movable rod 3, facilitating the device to fit to the lower end of the bridge. Subsequently, through the provided driving assembly, the driving assembly drives the gear 11 to rotate. Under the action of meshing, the gear 11 will drive the two racks 13 to move. Subsequently, the two racks 13 will drive the two moving plates 18 to move away from each other. Subsequently, the two detection assemblies 5 will also move away from each other, so that the detection assemblies 5 are displaced out of the detection housing 4, and the two detection assemblies 5 perform detection. The detection results are sent to the data processing center for data comparison.

[0055] When it is necessary to disassemble and repair the detection assembly 5, through the provided limiting assembly, the limiting of the T-shaped plate 19 by the limiting assembly is released. Subsequently, the detection assembly 5 can be lifted by hand, and the detection assembly 5 will drive the two T-shaped plates 19 to move upward, so that the T-shaped plates 19 are completely displaced out of the corresponding T-shaped grooves 20. At this time, one of the detection assemblies 5 can be disassembled. Through the above operations, the other detection assembly 5 can be disassembled, and moreover, through the reverse operation of the above operations, the detection assembly 5 can be installed. This process does not require the use of bolts, and disassembly and installation are more convenient.

[0056] When it is necessary to apply lubricating oil to the gear 11, the staff can rotate the threaded rod 16 forward by hand. Under the action of the thread, the threaded rod 16 will drive the sliding block 15 to move upward, so that the discharge port of the oil storage box 7 is opened. Subsequently, the lubricating oil inside the oil storage box 7 will enter the connecting pipe 8 from the discharge port of the oil storage box 7. Subsequently, the lubricating oil in the connecting pipe 8 will enter the arc-shaped oil outlet pipe 10. Subsequently, the lubricating oil in the arc-shaped oil outlet pipe 10 will be discharged from both ends of the arc-shaped oil outlet pipe 10 and drip onto the gear 11. During the rotation of the gear 11, the rack 13 will also be coated with lubricating oil. Subsequently, the threaded rod 16 can be rotated backward by hand. Under the action of the thread, the threaded rod 16 will drive the sliding block 15 to move downward, so that the bottom of the sliding block 15 is in close contact with the bottom of the inner cavity of the oil storage box 7, thereby being able to seal the discharge port of the oil storage box 7. Without external force, the sliding block 15 will not shake.

[0057] Embodiment 2:

[0058] This embodiment provides a stress monitoring device for the center of gravity section of a bridge. In addition to including the technical solutions of the above embodiments, it also has the following technical features. The limiting component includes:

[0059] Two baffles 6 are respectively inserted and installed on the left and right sides of the detection shell 4. The bottom of the baffle 6 contacts the top of the T-shaped plate 19 and the moving plate 18. An insertion plate 9 is inserted and installed in the baffle 6. One end of the insertion plate 9 penetrates the detection shell 4 and extends to the outside.

[0060] Among them, when it is necessary to disassemble and repair the detection component 5, the staff pulls the insertion plate 9 by hand, so that the insertion plate 9 is completely displaced from the detection shell 4 and the baffle 6. At this time, the baffle 6 will be released from fixation. Then, the baffle 6 is pulled out by hand, so that the baffle 6 is completely withdrawn from the detection shell 4. At this time, the T-shaped plate 19 will be released from the limit, so that the T-shaped plate 19 will not move up and down in the T-shaped groove 20.

[0061] Embodiment 3:

[0062] This embodiment provides a stress monitoring device for the center of gravity section of a bridge. In addition to including the technical solutions of the above embodiments, it also has the following technical features. The insertion plate 9 is in plug-in fit with the detection shell 4.

[0063] Among them, it is ensured that the insertion plate 9 can be inserted into the detection shell 4.

[0064] Embodiment 4:

[0065] This embodiment provides a stress monitoring device for the center of gravity section of a bridge. In addition to including the technical solutions of the above embodiments, it also has the following technical features. The driving component includes:

[0066] The motor 12 is fixedly installed at the bottom inside the cavity of the detection shell 4 and is located directly above the gear 11. The output end of the motor 12 penetrates the bottom inside the cavity of the detection shell 4 and extends into the through groove 17, and the output end of the motor 12 is coaxially connected to the gear 11.

[0067] Among them, when the motor 12 is started, the output shaft of the motor 12 will drive the gear 11 to rotate.

[0068] Embodiment 5:

[0069] This embodiment provides a stress monitoring device for the center of gravity section of a bridge. In addition to including the technical solutions of the above embodiments, it also has the following technical features: the output shaft of the motor 12 is rotationally connected to the detection shell 4 and the through groove 17.

[0070] Among them, it is ensured that the motor 12 can operate normally.

[0071] Embodiment 6:

[0072] This embodiment provides a stress monitoring device for the center of gravity section of a bridge. In addition to including the technical solutions of the above embodiments, it also has the following technical features: a collection box 14 is inserted and installed directly below the gear 11 inside the through groove 17. One end of the collection box 14 penetrates one side of the through groove 17 and extends to the outside. The moving plate 18 is slidably connected to the through groove 17.

[0073] Among them, it is ensured that the excess lubricating oil can flow into the collection box 14 for collection. The collection box 14 can be pulled out from the through groove 17 and cleaned; it is ensured that the moving plate 18 can slide inside the through groove 17.

[0074] Embodiment 7:

[0075] This embodiment provides a stress monitoring device for the center of gravity section of a bridge. In addition to including the technical solutions of the above embodiments, it also has the following technical features: the rack 13 meshes with the gear 11. The sliding block 15 is threadedly connected to the threaded rod 16. The top end of the threaded rod 16 penetrates the top inside the cavity of the oil storage box 7 and extends to the outside and is fixedly installed with a handle. A sealing gasket is fixedly installed at the bottom of the sliding block 15.

[0076] Among them, under the action of meshing, it is ensured that the rotation of the gear 11 can drive the displacement of the rack 13; under the action of the thread, it is ensured that the rotation of the threaded rod 16 can drive the displacement of the sliding block 15; it is ensured that the threaded rod 16 can be rotated through the handle, which is more convenient; under the action of the sealing gasket, the sealing effect of the sliding block 15 on the discharge port of the oil storage box 7 is better.

[0077] It should be noted that the structure and principle of the detection component 5 in this embodiment are both prior arts. For details, reference can be made to the comparative document (publication number: CN221147920U, patent name: A Bridge Stress Monitoring Device), which will not be elaborated here.

[0078] Working principle: During use, when the staff uses it, the overall device is placed at the lower end of the centroid section of the bridge to be detected. The lifting cylinder 2 drives the detection shell 4 to move upward through the movable rod 3, so as to facilitate the device to fit to the lower end of the bridge. Subsequently, the motor 12 is started, and the output shaft of the motor 12 will drive the gear 11 to rotate. Under the meshing action, the gear 11 will drive the two racks 13 to move. Subsequently, the two racks 13 will drive the two moving plates 18 to move away from each other respectively. Subsequently, the two detection components 5 will also move away from each other, so that the detection components 5 are displaced out of the detection shell 4, and the two detection components 5 perform detection, and the detection results are sent to the data processing center for data comparison.

[0079] When it is necessary to disassemble and repair the detection component 5, the staff pulls the insertion plate 9 by hand, so that the insertion plate 9 is completely displaced out of the detection shell 4 and the baffle 6. At this time, the baffle 6 will be released from fixation, and then the baffle 6 is pulled out by hand, so that the baffle 6 is completely withdrawn from the detection shell 4. At this time, the T-shaped plate 19 will be released from the limit. Subsequently, the detection component 5 can be lifted by hand, and the detection component 5 will drive the two T-shaped plates 19 to move upward, so that the T-shaped plates 19 are completely displaced out of the corresponding T-shaped grooves 20. At this time, one of the detection components 5 will be disassembled. Through the above operations, the other detection component 5 can be disassembled, and moreover, the detection component 5 can be installed by performing the reverse operations of the above operations. This process does not require the use of bolts, and the disassembly and installation are more convenient.

[0080] When it is necessary to apply lubricating oil to the gear 11, the staff can rotate the handle on the threaded rod 16 in the forward direction by hand and drive the threaded rod 16 to rotate. Under the action of the thread, the threaded rod 16 will drive the sliding block 15 to move upward, and the sliding block 15 will drive the sealing gasket to move upward, so that the discharge port of the oil storage box 7 is opened. Subsequently, the lubricating oil inside the oil storage box 7 will enter the connecting pipe 8 from the discharge port of the oil storage box 7. Subsequently, the lubricating oil in the connecting pipe 8 will enter the arc-shaped oil outlet pipe 10. Subsequently, the lubricating oil in the arc-shaped oil outlet pipe 10 will be discharged from both ends of the arc-shaped oil outlet pipe 10 and drip onto the gear 11. During the rotation of the gear 11, the rack 13 will also be coated with lubricating oil, and the excess lubricating oil will drip into the collection box 14 for collection. Subsequently, the handle on the threaded rod 16 can be rotated in the reverse direction by hand to drive the threaded rod 16 to rotate. Under the action of the thread, the threaded rod 16 will drive the sliding block 15 to move downward, so that the sealing gasket at the bottom of the sliding block 15 is in close contact with the bottom of the inner cavity of the oil storage box 7, thereby being able to seal the discharge port of the oil storage box 7. Without the action of external force, the sliding block 15 will not shake.

[0081] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A stress monitoring device for the center-of-gravity section of a bridge, comprising a base (1), a lifting cylinder (2) is arranged at the top of the base (1), a movable rod (3) is arranged at the top of the lifting cylinder (2), and a detection shell (4) is arranged at the top of the movable rod (3), characterized in that, Further included are: A through groove (17) is opened in the detection housing (4). Two racks (13) are slidably installed in the through groove (17). A moving plate (18) is fixedly installed at the top of the rack (13) and within the through groove (17). T-shaped grooves (20) are symmetrically opened on the sides of the two moving plates (18) away from each other. Detection components (5) are provided on the sides of the two moving plates (18) away from each other. A T-shaped plate (19) fixed to the detection component (5) is inserted and installed in the T-shaped groove (20). A gear (11) is rotatably installed in the through groove (17) between the two racks (13); A limiting component, which is located on the base (1) and is used to limit the four T-shaped plates (19); A driving component, which is located in the detection housing (4) and is used to drive the gear (11) to rotate; An oil storage box (7) is fixedly installed at the rear side of the detection housing (4). A threaded rod (16) is rotatably installed in the oil storage box (7). A sliding block (15) is slidably installed on the inner wall of the oil storage box (7) and on the threaded rod (16). A connecting pipe (8) is fixedly installed at the bottom of the oil storage box (7). One end of the connecting pipe (8) penetrates the rear side of the detection housing (4) and is fixedly installed with an arc-shaped oil outlet pipe (10). Both ends of the arc-shaped oil outlet pipe (10) penetrate the bottom of the inner cavity of the detection housing (4) and extend into the through groove (17).

2. The stress monitoring device for the bridge gravity center section according to claim 1, wherein The limiting component includes: Two baffles (6) are respectively inserted and installed on the left and right sides of the detection housing (4). The bottom of the baffle (6) contacts the top of the T-shaped plate (19) and the moving plate (18). An insertion plate (9) is inserted and installed in the baffle (6). One end of the insertion plate (9) penetrates the detection housing (4) and extends to the outside.

3. The stress monitoring device for the centroid section of a bridge according to claim 2, characterized in that, The insertion plate (9) is in plug-in fit with the detection housing (4).

4. The stress monitoring device for the bridge centroid section according to claim 1, wherein The driving component includes: A motor (12) is fixedly installed at the bottom of the inner cavity of the detection housing (4) and directly above the gear (11). The output end of the motor (12) penetrates the bottom of the inner cavity of the detection housing (4) and extends into the through groove (17), and the output end of the motor (12) is coaxially connected to the gear (11).

5. The stress monitoring device for the centroid section of a bridge according to claim 4, characterized in that, The output shaft of the motor (12) is rotatably connected to the detection housing (4) and the through groove (17).

6. The stress monitoring device for the centroid section of a bridge according to claim 1, characterized in that, A collection box (14) is inserted and installed in the through groove (17) directly below the gear (11). One end of the collection box (14) penetrates one side of the through groove (17) and extends to the outside. The moving plate (18) is slidably connected to the through groove (17).

7. The stress monitoring device for the centroid section of a bridge according to claim 1, characterized in that, The rack (13) meshes with the gear (11). The sliding block (15) is threadedly connected to the threaded rod (16). The top end of the threaded rod (16) penetrates the top of the inner cavity of the oil storage box (7) and extends to the outside and is fixedly installed with a handle. A sealing pad is fixedly installed at the bottom of the sliding block (15).

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