Bridge seismic mitigation and isolation reinforcing equipment and method in high-intensity seismic area

Abstract

The invention belongs to the technical field of bridge seismic mitigation and isolation reinforcing equipment, and discloses high-intensity seismic region bridge seismic mitigation and isolation reinforcing equipment and method.The high-intensity seismic region bridge seismic mitigation and isolation reinforcing equipment comprises two bottom plates, the top ends of the two bottom plates are each fixedly provided with two first sleeve rods, and the top of each first sleeve rod is provided with a second sleeve rod; the outer portion of each second sleeve rod is sleeved with a damping spring, the outer portion of each damping spring is provided with a protection assembly, each damping spring is installed at the bottom end of a support, and the support is arranged above the bottom plate. The protective assembly comprises a protective cover arranged outside the damping spring, the protective cover is slidably mounted on the outer wall of the first sleeve rod, and during working, the protective cover is located outside the damping spring to protect the damping spring, so that the damping spring is prevented from being easily influenced by factors such as rainwater, dust, ultraviolet rays, temperature change and chemical corrosion when being used outdoors; and therefore, the long-term, stable and reliable operation of the equipment can be ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge seismic reduction and isolation reinforcement equipment, and specifically relates to a bridge seismic reduction and isolation reinforcement equipment and method in high-intensity earthquake areas. Background Art

[0002] In high-intensity earthquake zones (intensity 7 and above), bridges are key nodes in the transportation network, and their seismic performance is directly related to post-earthquake rescue and traffic restoration;

[0003] After searching, such as patent: CN210975582U, a bridge reinforcement device with seismic isolation function, including a support, both sides of the top of the support are provided with a slide groove, the two sides of the inner wall of the two slide grooves are respectively slidably connected to the two sides of the four sliders, and the mounting seat is set to fix the mounting seat on the bottom end face of the bridge. When a heavy truck passes, the bridge is subjected to downward pressure, and the mounting seat drives the slide plate to move to both sides, and the slide plate drives the slider to compress the first spring, so as to perform a first seismic isolation and shock absorption on the bridge, and the support drives the slide bar to move downward, and the slide bar drives the baffle to compress the second spring, so as to perform a second seismic isolation and shock absorption on the bridge, and the fixed plate drives the second sleeve downward to compress the third spring, so as to perform a third seismic isolation and shock absorption on the bridge. Through the reinforcement of the third seismic isolation and shock absorption, the bridge remains stable, the seismic isolation and shock absorption effect of the bridge is improved, the service life of the bridge is extended, and the safety of passing vehicles is guaranteed;

[0004] In bridge seismic isolation reinforcement equipment in high-intensity earthquake zones, shock-absorbing springs (especially steel springs) are the core elastic components. However, bridge seismic isolation reinforcement equipment is exposed to the outdoor environment for a long time. Shock-absorbing springs are easily affected by factors such as rain, dust, ultraviolet rays, temperature changes and chemical corrosion, resulting in performance degradation or even failure. Summary of the Invention

[0005] The object of the present invention is to provide a bridge seismic reduction and isolation reinforcement device and method in high-intensity earthquake areas to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a seismic isolation reinforcement device for bridges in high-intensity earthquake zones, comprising a base plate, two base plates being provided, two first sets of rods being fixedly mounted on the top of each of the two base plates, a second set of rods being mounted on the top of each of the first sets of rods, a shock-absorbing spring being sleeved on the outside of each of the second sets of rods, a protective assembly being provided on the outside of each of the shock-absorbing springs, and each of the shock-absorbing springs being mounted on the bottom end of a support, which is provided above the base plate;

[0007] The protection assembly comprises a protection cover arranged outside the shock-absorbing spring, and the protection cover is slidably mounted on the outer wall of the first set of rods.

[0008] As a further technical solution of the present invention, a filter is fixedly connected to the bottom end of the protective cover, and a cleaning component is provided at the bottom of the filter.

[0009] As a further technical solution of the present invention, ear plates are fixedly connected to both sides of the top of the protective cover, and the two ear plates are installed on the bottom end of the support by bolts.

[0010] As a further technical solution of the present invention, the inner wall of the top of the protective cover is provided with through holes, and the through holes are evenly distributed in a circular array.

[0011] As a further technical solution of the present invention, the cleaning assembly includes a cleaning roller arranged at the bottom of the filter screen, the outer wall of the cleaning roller is evenly installed with first bristles in a circular array, one end of the cleaning roller is installed with a connecting seat, the top of the connecting seat is fixedly installed with a rotating sleeve, the rotating sleeve is rotatably installed inside the protective cover, the outer wall of the rotating sleeve is provided with a spiral groove, the inner wall of the spiral groove is slidably connected with a slider, the slider is fixedly installed on the side wall of the connecting plate, the bottom end of the connecting plate is fixedly connected with a connecting ring, and the connecting ring is installed on the top of the bottom plate.

[0012] As a further technical solution of the present invention, the connecting plate and the protective cover are slidingly connected.

[0013] As a further technical solution of the present invention, the connecting ring is magnetically connected to the base plate.

[0014] As a further technical solution of the present invention, one end of the cleaning roller is fixedly connected to a first rotating shaft, the first rotating shaft is rotatably installed inside the connecting seat, the outer wall of the first rotating shaft is fixedly installed with a first gear, the top end of the first gear is meshed and connected with a second gear, the inner wall of the second gear is fixedly installed with a second rotating shaft, the top end of the second gear is meshed and connected with an annular rack, and the annular rack is fixedly installed on the inner wall of the protective cover.

[0015] As a further technical solution of the present invention, springs are installed on the outer wall of the cleaning roller, the springs are evenly distributed, and the top end of each spring is fixedly connected to a second bristle.

[0016] A method for seismic isolation and reinforcement of bridges in high-intensity earthquake zones comprises the following steps:

[0017] S1: When the bridge seismic isolation reinforcement equipment is in operation, the protective cover is located outside the shock-absorbing spring to protect it. Air flows freely through the through holes, so that the air pressure inside the protective cover is consistent with that outside. When the humid air in the protective cover is cooled, condensation is discharged through the filter.

[0018] S2: When the earthquake protection cover slides downward, the protection cover slides on the outer wall of the connecting plate, and at the same time, the slider slides in the inner wall of the spiral groove, causing the limited rotating sleeve to rotate, and the rotation of the rotating sleeve drives the rotation of the connecting seat, and the rotation of the connecting seat drives the cleaning roller to rotate at the bottom of the filter, so that the first bristles contact the bottom of the filter to clean it;

[0019] S3: When the rotating sleeve drives the connecting seat to rotate, the second gear engages with the annular rack and rotates. The rotation of the second gear drives the rotation of the first gear. The rotation of the first gear drives the rotation of the first rotating shaft. The rotation of the first rotating shaft drives the rotation of the cleaning roller. The rotation of the cleaning roller drives the rotation of the first bristles and the second bristles. Through the "rotational peeling" effect, the brush gradually penetrates into the pores of the filter screen in a spiral path to remove embedded particles.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The present invention provides a protective component. During operation, the protective cover is located outside the shock-absorbing spring to protect it, thereby preventing it from being easily affected by factors such as rain, dust, ultraviolet rays, temperature changes and chemical corrosion when used outdoors, which may lead to performance degradation or even failure. This helps to ensure long-term, stable and reliable operation of the equipment.

[0022] 2. The present invention is provided with a cleaning component. When the earthquake protection cover slides downward, the protection cover slides on the outer wall of the connecting plate, and at the same time the slider slides in the inner wall of the spiral groove. The rotating sleeve rotates through its limit, and the rotation of the rotating sleeve drives the rotation of the connecting seat. The rotation of the connecting seat drives the cleaning roller to rotate at the bottom of the filter, so that the first bristles contact the bottom of the filter to clean it, preventing the problem of sand, dust, leaves, insects, etc. easily clogging the filter aperture in the outdoor environment, resulting in reduced drainage efficiency or poor air permeability. The rotating motion of the cleaning roller scrapes off the attachments on the surface of the filter to keep the aperture unobstructed.

[0023] 3. The present invention rotates the cleaning roller at the bottom of the filter. When the rotating sleeve drives the connecting seat to rotate, the second gear engages with the annular rack and rotates. The rotation of the second gear drives the rotation of the first gear. The rotation of the first gear drives the rotation of the first rotating shaft. The rotation of the first rotating shaft drives the rotation of the cleaning roller, thereby preventing sand, dust, leaves, etc. in the outdoor environment from being easily embedded in the pores of the filter. When the cleaning roller rotates, the first bristles gradually penetrate into the pores in a spiral path through the "rotational peeling" effect to remove embedded particles, thereby helping to improve cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the protective cover of the present invention;

[0027] Figure 4 This is a structural diagram of the rotating sleeve of the present invention;

[0028] Figure 5 This is a schematic cross-sectional view of the protective cover structure of the present invention;

[0029] Figure 6 For the present invention Figure 5 A schematic diagram of the structure at center A;

[0030] Figure 7 It is a schematic cross-sectional view of the structure of the cleaning roller and the connecting seat of the present invention.

[0031] In the figure: 1. Base plate; 2. Support; 3. First set of rods; 4. Shock-absorbing spring; 5. Protective cover; 6. Ear plate; 7. Bolt; 8. Through hole; 9. Filter; 10. Cleaning roller; 11. Connecting seat; 12. Rotating sleeve; 13. Spiral groove; 14. Slider; 15. Connecting plate; 16. Connecting ring; 17. First rotating shaft; 18. First gear; 19. Second gear; 20. Second rotating shaft; 21. Ring rack; 22. First bristles; 23. Spring; 24. Second set of rods; 25. Second bristles. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] like Figures 1 to 7 As shown, in an embodiment of the present invention, a seismic isolation reinforcement device for bridges in high-intensity earthquake zones includes a base plate 1, two base plates 1 are provided, two first sets of rods 3 are fixedly installed on the top of the two base plates 1, a second set of rods 24 is installed on the top of each first set of rods 3, a shock-absorbing spring 4 is sleeved on the outside of each second set of rods 24, a protective component is provided on the outside of each shock-absorbing spring 4, and each shock-absorbing spring 4 is installed on the bottom end of a support 2, which is provided above the base plate 1;

[0034] The protection assembly includes a protection cover 5 arranged outside the shock-absorbing spring 4 , and the protection cover 5 is slidably mounted on the outer wall of the first set of rods 3 .

[0035] Existing: CN210975582U discloses a bridge reinforcement device with seismic isolation function. This patent discloses the base plate 1, support 2, first set of rods 3 and second set of rods 24 proposed in this application document. This technical means will not be described in detail here;

[0036] Through the setting of the protective component, during operation, the protective cover 5 is located outside the shock-absorbing spring 4 to protect it, preventing it from being easily affected by factors such as rain, dust, ultraviolet rays, temperature changes and chemical corrosion when used outdoors, which may lead to performance degradation or even failure, helping to ensure long-term, stable and reliable operation of the equipment.

[0037] like Figure 5 and Figure 6 As shown, the bottom end of the protective cover 5 is fixedly connected to a filter screen 9, and a cleaning component is provided at the bottom of the filter screen 9.

[0038] When the moist air in the protective cover 5 is cooled (such as when the temperature drops suddenly at night), the water vapor will condense into water droplets, which can be discharged through the filter 9 at this time.

[0039] like Figure 3 、 Figure 4 and Figure 5 As shown, ear plates 6 are fixedly connected to both sides of the top of the protective cover 5, and the two ear plates 6 are installed on the bottom end of the support 2 through bolts 7.

[0040] The protective cover 5 is detachable, which facilitates the rapid replacement of locally damaged parts and reduces maintenance costs.

[0041] like Figure 3 、 Figure 4 and Figure 5 As shown, the inner wall of the top of the protective cover 5 is provided with through holes 8, and the through holes 8 are evenly distributed in a circular array.

[0042] Allowing air to circulate freely keeps the air pressure inside the protective cover 5 consistent with that outside, thus avoiding stress concentration caused by pressure difference.

[0043] like Figure 5 、 Figure 6 and Figure 7 As shown, the cleaning assembly includes a cleaning roller 10 arranged at the bottom of the filter 9, the outer wall of the cleaning roller 10 is evenly installed with first bristles 22 in a circular array, one end of the cleaning roller 10 is installed with a connecting seat 11, the top of the connecting seat 11 is fixedly installed with a rotating sleeve 12, the rotating sleeve 12 is rotatably installed inside the protective cover 5, the outer wall of the rotating sleeve 12 is provided with a spiral groove 13, the inner wall of the spiral groove 13 is slidably connected with a slider 14, the slider 14 is fixedly installed on the side wall of the connecting plate 15, the bottom end of the connecting plate 15 is fixedly connected with a connecting ring 16, and the connecting ring 16 is installed on the top of the base plate 1.

[0044] Through the setting of the cleaning component, when the earthquake protection cover 5 slides downward, the protection cover 5 slides on the outer wall of the connecting plate 15, and at the same time the slider 14 slides in the inner wall of the spiral groove 13, and the rotating sleeve 12 rotates through its limiting position. The rotation of the rotating sleeve 12 drives the rotation of the connecting seat 11, and the rotation of the connecting seat 11 drives the cleaning roller 10 to rotate at the bottom of the filter 9, so that the first bristles 22 contact the bottom of the filter 9 to clean it, preventing the problem of sand, dust, leaves, insects, etc. easily clogging the aperture of the filter 9 in the outdoor environment, resulting in a decrease in drainage efficiency or poor air permeability. Through the rotation of the cleaning roller 10, the attachments on the surface of the filter 9 are scraped off to keep the aperture unobstructed.

[0045] like Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, the connecting plate 15 and the protective cover 5 are connected in a sliding manner.

[0046] like Figure 1 and Figure 2 As shown, the connecting ring 16 is magnetically connected to the base plate 1 .

[0047] When the protective cover 5 is maintained, the bolts 7 are first removed to separate the protective cover 5 from the support 2, and then the connecting ring 16 is moved downward and taken out from the base plate 1 for easy disassembly and maintenance.

[0048] like Figure 5 、 Figure 6 and Figure 7 As shown, one end of the cleaning roller 10 is fixedly connected to a first rotating shaft 17, and the first rotating shaft 17 is rotatably mounted inside the connecting seat 11. A first gear 18 is fixedly mounted on the outer wall of the first rotating shaft 17, and the top end of the first gear 18 is meshedly connected to a second gear 19. A second rotating shaft 20 is fixedly mounted on the inner wall of the second gear 19, and the top end of the second gear 19 is meshedly connected to an annular rack 21, and the annular rack 21 is fixedly mounted on the inner wall of the protective cover 5.

[0049] When the rotating sleeve 12 drives the connecting seat 11 to rotate, the second gear 19 engages with the annular rack 21 and rotates. The rotation of the second gear 19 drives the rotation of the first gear 18. The rotation of the first gear 18 drives the rotation of the first rotating shaft 17. The rotation of the first rotating shaft 17 drives the rotation of the cleaning roller 10 to prevent sand, dust, leaves, etc. in the outdoor environment from being easily embedded in the pores of the filter 9. When the cleaning roller 10 rotates, the first bristles 22 gradually penetrate into the pores in a spiral path through the "rotational peeling" effect to remove embedded particles, which helps to improve cleaning efficiency.

[0050] like Figure 5 、 Figure 6 and Figure 7As shown, springs 23 are installed on the outer wall of the cleaning roller 10 . The springs 23 are evenly distributed, and the top of each spring 23 is fixedly connected to a second bristle 25 .

[0051] Through the elastic potential energy of the spring 23, part of the second bristles 25 can automatically adjust the contact pressure through deformation, thereby improving the cleaning efficiency and dealing with complex dirt.

[0052] A method for seismic isolation and reinforcement of bridges in high-intensity earthquake zones comprises the following steps:

[0053] S1: When the bridge seismic isolation reinforcement device is in operation, the protective cover 5 is located outside the shock absorbing spring 4 to protect it. Air flows freely through the through hole 8, so that the air pressure inside the protective cover 5 is consistent with that outside. When the humid air in the protective cover 5 is cooled, condensation is discharged through the filter 9;

[0054] S2: When the earthquake protection cover 5 slides downward, the protection cover 5 slides on the outer wall of the connecting plate 15, and at the same time, the slider 14 slides in the inner wall of the spiral groove 13, and the rotating sleeve 12 rotates through its limited position. The rotation of the rotating sleeve 12 drives the rotation of the connecting seat 11, and the rotation of the connecting seat 11 drives the cleaning roller 10 to rotate at the bottom of the filter 9, so that the first bristles 22 contact the bottom of the filter 9 to clean it;

[0055] S3: When the rotating sleeve 12 drives the connecting seat 11 to rotate, the second gear 19 engages with the annular rack 21 and rotates. The rotation of the second gear 19 drives the rotation of the first gear 18. The rotation of the first gear 18 drives the rotation of the first rotating shaft 17. The rotation of the first rotating shaft 17 drives the rotation of the cleaning roller 10. The rotation of the cleaning roller 10 drives the first brush 22 and the second brush 25 to rotate. Through the "rotational peeling" effect, the filter 9 gradually penetrates into the pores in the spiral path to remove embedded particles.

[0056] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A seismic isolation and reinforcement device for bridges in high-intensity earthquake zones, comprising a base plate (1), characterized in that: There are two bottom plates (1), and two first rods (3) are fixedly mounted on the top of the two bottom plates (1). A second rod (24) is mounted on the top of each first rod (3). A shock-absorbing spring (4) is sleeved on the outside of each second rod (24). A protective component is provided on the outside of each shock-absorbing spring (4). Each shock-absorbing spring (4) is mounted on the bottom end of a support (2), and the support (2) is arranged above the bottom plate (1). The protection assembly comprises a protection cover (5) arranged outside the shock-absorbing spring (4), and the protection cover (5) is slidably mounted on the outer wall of the first set of rods (3).

2. The seismic isolation and reinforcement equipment for bridges in high-intensity earthquake zones according to claim 1 is characterized by: The bottom end of the protective cover (5) is fixedly connected to a filter screen (9), and a cleaning component is provided at the bottom of the filter screen (9).

3. The seismic isolation and reinforcement equipment for bridges in high-intensity earthquake zones according to claim 1 is characterized by: Both sides of the top of the protective cover (5) are fixedly connected with ear plates (6), and the two ear plates (6) are installed on the bottom end of the support (2) through bolts (7).

4. The seismic isolation and reinforcement equipment for bridges in high-intensity earthquake zones according to claim 1 is characterized by: Through holes (8) are provided on the inner wall of the top of the protective cover (5), and the through holes (8) are evenly distributed in a ring array.

5. The seismic isolation and reinforcement equipment for bridges in high-intensity earthquake zones according to claim 2 is characterized by: The cleaning assembly comprises a cleaning roller (10) arranged at the bottom of the filter (9), the outer wall of the cleaning roller (10) is evenly mounted with first bristles (22) in a circular array, one end of the cleaning roller (10) is mounted with a connecting seat (11), the top end of the connecting seat (11) is fixedly mounted with a rotating sleeve (12), the rotating sleeve (12) is rotatably mounted inside the protective cover (5), the outer wall of the rotating sleeve (12) is provided with a spiral groove (13), the inner wall of the spiral groove (13) is slidably connected with a slider (14), the slider (14) is fixedly mounted on the side wall of the connecting plate (15), the bottom end of the connecting plate (15) is fixedly connected with a connecting ring (16), and the connecting ring (16) is mounted on the top end of the bottom plate (1).

6. The seismic isolation and reinforcement equipment for bridges in high-intensity earthquake zones according to claim 5, characterized in that: The connecting plate (15) is slidably connected to the protective cover (5).

7. The seismic isolation and reinforcement equipment for bridges in high-intensity earthquake zones according to claim 5, characterized in that: The connecting ring (16) is magnetically connected to the bottom plate (1).

8. The seismic isolation and reinforcement equipment for bridges in high-intensity earthquake zones according to claim 5 is characterized by: One end of the cleaning roller (10) is fixedly connected to a first rotating shaft (17), the first rotating shaft (17) is rotatably mounted inside the connecting seat (11), a first gear (18) is fixedly mounted on the outer wall of the first rotating shaft (17), the top end of the first gear (18) is meshedly connected to a second gear (19), a second rotating shaft (20) is fixedly mounted on the inner wall of the second gear (19), the top end of the second gear (19) is meshedly connected to an annular rack (21), and the annular rack (21) is fixedly mounted on the inner wall of the protective cover (5).

9. The seismic isolation and reinforcement equipment for bridges in high-intensity earthquake zones according to claim 5, characterized in that: Springs (23) are installed on the outer wall of the cleaning roller (10), the springs (23) are evenly distributed, and the top end of each spring (23) is fixedly connected to a second bristle (25).

10. A method for seismic isolation and reinforcement of bridges in high-intensity earthquake zones, the method being applicable to the seismic isolation and reinforcement of bridges in high-intensity earthquake zones according to claims 1 to 9, characterized in that: The following steps are involved: S1: When the bridge seismic isolation reinforcement equipment is in operation, the protective cover (5) is located outside the shock absorbing spring (4) to protect it, and air flows freely through the through hole (8), so that the air pressure inside the protective cover (5) is consistent with that outside, and when the humid air inside the protective cover (5) is cooled, condensation is discharged through the filter (9); S2: When the earthquake protection cover (5) slides downward, the protection cover (5) slides on the outer wall of the connecting plate (15), and at the same time, the slider (14) slides in the inner wall of the spiral groove (13), and the rotating sleeve (12) rotates through its limited position. The rotation of the rotating sleeve (12) drives the rotation of the connecting seat (11), and the rotation of the connecting seat (11) drives the cleaning roller (10) to rotate at the bottom of the filter (9), so that the first brush (22) contacts the bottom of the filter (9) to clean it; S3: When the rotating sleeve (12) drives the connecting seat (11) to rotate, the second gear (19) engages with the annular rack (21) and rotates. The rotation of the second gear (19) drives the rotation of the first gear (18). The rotation of the first gear (18) drives the rotation of the first rotating shaft (17). The rotation of the first rotating shaft (17) drives the rotation of the cleaning roller (10). The rotation of the cleaning roller (10) drives the rotation of the first bristles (22) and the second bristles (25). Through the "rotational peeling" effect, the brush gradually penetrates into the pores of the filter screen (9) in a spiral path to remove embedded particles.

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