CN211200050U - Anti-seismic support with automatic induction unlocking device - Google Patents
Anti-seismic support with automatic induction unlocking device Download PDFInfo
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- CN211200050U CN211200050U CN201921905620.4U CN201921905620U CN211200050U CN 211200050 U CN211200050 U CN 211200050U CN 201921905620 U CN201921905620 U CN 201921905620U CN 211200050 U CN211200050 U CN 211200050U
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Abstract
The utility model relates to an antidetonation support with auto-induction unlocking means, including the bearing, the bearing comprises upper portion and lower part, upper portion is provided with spherical crown board, the lower part is provided with the spherical surface board, spherical crown board and spherical surface board laminating and butt, the handing-over department of spherical crown board and spherical surface board is provided with and hinders gliding locking module between spherical crown board and the spherical surface board, upper portion still is provided with the vibration sensing module bearing that can control locking module's locking and unblock through convex spherical crown board and spherical surface board butt to the stainless steel slide on bearing upper portion produces relative slip with wear-resisting slide for the bearing has the cushioning effect during the earthquake.
Description
Technical Field
The utility model belongs to the technical field of the technique of bridge building and specifically relates to a shock-resistant support with auto-induction unlocking means is related to.
Background
The bridge bearing is an important structural component for connecting an upper structure and a lower structure of a bridge, is positioned between the bridge and the pad stone, can reliably transfer load and deformation (displacement and corner) borne by the upper structure of the bridge to the lower structure of the bridge, and is an important force transfer device of the bridge. The device comprises a fixed support and a movable support. The common support forms for bridge engineering include: felt or flat supports, plate rubber supports, ball supports, steel supports, special supports and the like. Wherein the antidetonation support not only should satisfy the support requirement, should possess following five essential properties simultaneously: 1. has enough vertical rigidity for supporting the gravity transferred by the upper structure; 2. the flexible ceramic has certain flexibility and is used for prolonging the natural vibration period of a structural system; 3. the energy consumption capacity is certain, the relative deformation at the bearing surface is reduced, and the displacement is controlled within a design allowable range; 4. the material has certain initial horizontal rigidity and yield strength, and under the action of normal use load (such as wind load, braking force and the like) or micro earthquake, the material enables the system to have enough elastic rigidity so as to meet the normal use requirement; 5. the shock isolation mechanism system has an instantaneous automatic reset function in the earthquake, and the upper structure can return to an initial state after the earthquake, so that the normal use requirement is met.
Its bulletin number of current patent document is a spherical antidetonation support of CN207659848U, top are arranged in to the upper bracket board, following stainless steel sheet, round flat board, spherical crown steel lining board of welding in proper order, and terminal surface and the laminating of spherical board up end under the spherical crown steel lining board, terminal surface and the welding of lower bolster under the spherical board, first connecting plate is located the outside, and the second connecting plate system is in the first connecting plate outside, and its lower extreme and the welding of lower bolster board, upper end are provided with the elasticity spacing groove, and the spacer pin passes in the outside ring of first connecting plate inserts the elasticity spacing groove, and the space between first connecting plate and the lower bolster is provided with rubber seal, upper and lower bolster pass through attachment strap and bolted connection. Under the action of a frequent earthquake, the limiting pin is in a closed state and plays a role of fixing the hinge, when the earthquake load exceeds a given value, the limiting pin is sheared, the friction pair can freely slide, the spherical support can realize translation and rotation, and the earthquake action on the structure is reduced.
The defects of the prior art are as follows: the limiting pin is difficult to shear within a certain range of earthquake load, and because an earthquake can also generate certain pulling on the bridge when the level is lower, if the limiting pin still limits the rotation of the spherical anti-seismic support, a good anti-seismic effect cannot be achieved, so that a technical scheme that the spherical anti-seismic support can be unlocked only by sensing vibration needs to be provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an antidetonation support with auto-induction unlocking means can respond to in the earthquake and unblank, acts on the spacer pin than the mechanical force, the utility model discloses there is higher sensitivity, and the position of chucking can be unblock fast to make the support can in time play the effect of antidetonation, buffering to the bridge.
The utility model aims at realizing through the following technical scheme:
the utility model provides an antidetonation support with auto-induction unlocking means, includes the bearing, the bearing comprises upper portion and lower part, upper portion is provided with the spherical crown board, the lower part is provided with the sphere board, the spherical crown board pastes and the butt with the sphere board, the handing-over department of spherical crown board and sphere board is provided with the locking module that hinders gliding between spherical crown board and the sphere board, upper portion still is provided with the vibration sensing module that can control locking module's locking and unblock.
Through adopting above-mentioned technical scheme, the setting of spherical crown board and ball panel, curved contact surface can improve the bearing and slide and rotation performance. The locking module is arranged at the joint between the upper spherical crown plate and the lower spherical plate, and can play a role in limiting the sliding between the spherical crown plate and the spherical plate, so that the supporting seat not only has the function of a movable support, but also has the function of a fixed support; the vibration sensing module can control the locking module to lock the movable gap between the spherical panel and the spherical crown plate at ordinary times; once the vibration sensing module senses the vibration, the vibration sensor controls the locking module to unlock from a movable gap between the spherical plate and the spherical crown plate, so that relative sliding can be generated between the spherical plate and the spherical crown plate, rigid connection of the support can be changed into sliding connection in an earthquake, the effects of shock resistance and buffering are achieved, and the bridge is protected from being damaged in the earthquake.
The utility model discloses further set up to: the locking module is connected with a clamping block, a controlled power supply and a closed contact in series, one end of the clamping block is connected with an expansion spring, the expansion spring is connected in series in a circuit of the locking module, the other end of the clamping block is opposite to the closed contact and has a distance, the closed contact is arranged at the edge of the stainless steel sliding plate, and the other side of the closed contact is close to the spherical crown plate.
By adopting the technical scheme, the clamping block in the locking module plays a role in limiting the sliding of the spherical crown plate and the spherical plate; the locking module is connected with the control power supply, when the clamping block is contacted with the closed contact, the circuit of the locking module is conducted, and the locking module clamps the gap between the spherical crown plate and the spherical panel, so that the spherical crown plate and the spherical panel are not easy to slide and play a role in fixing the support; when the clamping block is separated from the gap between the spherical crown plate and the spherical panel, the supporting seat plays a role of a movable supporting seat.
The utility model discloses further set up to: the vibration sensing module is connected with a vibration sensing switch, an electromagnet and a main control power supply in series, the clamping block is made of magnetic metal, and one end of the electromagnet is attached to the closed contact.
Through adopting above-mentioned technical scheme, vibration can be sensed to the vibration sensing switch to in time break off vibration sensing module's return circuit, make chucking piece and closed contact break away from, and make chucking piece no longer lock in the clearance of spherical crown board and ball panel.
The utility model discloses further set up to: the side of the supporting seat is provided with a protective enclosing sleeve, the upper part of the protective enclosing sleeve is provided with an elastic return groove, the bottom of the elastic return groove is fixed with one end of the telescopic spring, which is far away from the clamping block, and the depth of the elastic return groove is greater than or equal to the sum of the length of the clamping block and the natural length of the telescopic spring.
By adopting the technical scheme, the protective enclosure plays a dustproof and waterproof role, so that the aging condition in the supporting seat is reduced, and the service life of the supporting seat is prolonged; the block can be restored to the rebounding groove under the tension of the spring.
The utility model discloses further set up to: the spherical crown plate is internally provided with a plurality of protection cavities, the protection cavities are close to the edge of the spherical crown plate, and the vibration sensing module is arranged in the protection cavities.
By adopting the technical scheme, the vibration sensing module can be placed in the protective cavity inside the goal crown plate, the external arrangement of a circuit is reduced, and the service life of the vibration sensing module can be prolonged.
The utility model discloses further set up to: the upper portion of bearing includes the upper bracket board, the one side that the upper bracket board is down is fixed with the stainless steel slide, stainless steel slide below butt has wear-resisting slide, wear-resisting slide is fixed with the spherical crown board.
Through adopting above-mentioned technical scheme, stainless steel slide and wear-resisting slide looks butt, consequently stainless steel board can produce relative slip with wear-resisting slide, and such setting up can produce certain buffering between bridge and the support during the earthquake for the bridge is not fragile.
The utility model discloses further set up to: the lower part of the supporting seat comprises a lower supporting seat plate, a spherical surface plate is arranged on the upward surface of the lower supporting seat plate, the radian orientation of the spherical surface plate is consistent with that of the spherical crown plate, and the curvature radius of the surface of the spherical surface plate is equal to or larger than that of the surface of the spherical crown plate.
By adopting the technical scheme, the radian orientations of the spherical surface plate and the spherical crown plate are consistent, so that the spherical surface of the spherical panel can be attached to the spherical surface of the spherical crown plate; and the curvature radius of the surface of the spherical surface plate is equal to or larger than that of the surface of the spherical crown plate, so that the spherical crown plate is not easy to fall out of the range of the spherical surface plate when the spherical crown plate rotates on the spherical surface plate.
The utility model discloses further set up to: the lower support plate is filled with plate rubber, and the plate rubber comprises thin steel plates and rubber sheets which are alternately stacked.
By adopting the technical scheme, the plate rubber has the advantages of simple structure, convenience in processing and manufacturing, low cost and capability of saving steel. The plate rubber has reliable working performance, good elastic damping, reduced impact of dynamic load on the bridge span structure and the abutment, and improved bridge stress performance. Because the plate rubber is arranged in the lower support plate, the rubber aging caused by the direct sunlight can be avoided, so that the plate rubber almost does not need frequent maintenance, and the maintenance workload can be reduced. The rotation is realized by the uneven elastic compression of the rubber sheet; the horizontal displacement is realized by the shearing deformation of the rubber sheet; the plate rubber has a simple structure, and the vertical bearing capacity of the anti-seismic support can be improved by alternately stacking the thin steel plates and the rubber sheets.
The utility model discloses further set up to: and a lead core penetrates through the middle position of the plate rubber.
By adopting the technical scheme, the lead core can bear the gravity and the horizontal force of a structure, and the hysteresis damping plastic deformation generated by the lead core can also absorb energy and can provide horizontal restoring force through the plate rubber.
The utility model discloses further set up to: a butt strap is hinged between the upper part and the lower part.
By adopting the technical scheme, the butt strap arranged on the upper part and the lower part can limit the displacement between the upper part and the lower part, so that the upper part and the lower part are not easy to restore to the original positions due to overlarge displacement.
To sum up, the utility model discloses a beneficial technological effect does:
1. the locking module and the vibration sensing module can be arranged to be capable of being unlocked in an induction mode in an earthquake, so that the anti-seismic support has the anti-seismic and buffering effects on the bridge;
2. the upper part and the lower part of the supporting seat are abutted with the spherical surface plate through the arc-shaped spherical crown plate, so that the supporting seat can be subjected to isotropic force in rotation, the stress is uniform, and the service life of the supporting seat can be prolonged;
3. the lower support plate at the lower part is internally provided with plate-type rubber, so that the bearing effect of the support seat is greatly enhanced.
Drawings
Fig. 1 is the overall structure schematic diagram of the utility model discloses an antidetonation support with auto-induction unlocking device.
Fig. 2 is a schematic structural diagram of the vibration sensor according to the present invention when the control switch is closed.
Fig. 3 is a schematic structural diagram of the vibration sensor control switch of the present invention when it is turned on.
In the figure, 1, a supporting seat; 11. an upper support plate; 111. a protective enclosure; 112. rebounding the groove; 113. a butt strap; 12. a stainless steel slide plate; 13. a wear-resistant sliding plate; 14. a spherical crown plate; 141. a protection cavity; 15. a lower support plate; 16. plate rubber; 161. a thin steel sheet; 162. a rubber sheet; 163. a lead core; 164. a rubber protective sleeve; 17. a ball panel; 2. a vibration sensing module; 21. a vibration sensor switch; 22. an electromagnet; 23. a main control power supply; 3. a locking module; 31. a clamping block; 32. a tension spring; 33. a controlled power supply; 34. the contacts are closed.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses an antidetonation support with auto-induction unlocking device, including bearing 1, vibration sensing module 2 and locking module 3.
The bearing block 1 includes an upper bearing plate 11 and a lower bearing plate 15. The upper surface of the upper support plate 11 is fixed with the bridge; the lower surface of the lower support plate 15 is fixed to the base of the bridge bottom.
The lower surface of upper bracket board 11 is provided with stainless steel slide 12, and stainless steel slide 12 has certain smoothness, and the butt of stainless steel slide 12 below has spherical crown board 14, and the hemisphere of spherical crown board 14 is faced down, and the plane is relative with stainless steel slide 12 to paste the wear-resisting slide 13 of one deck on the plane of spherical crown board 14, the material of wear-resisting slide 13 is polytetrafluoroethylene, and polytetrafluoroethylene has very superior comprehensive properties: the high-temperature-resistant and low-temperature-resistant composite material has the excellent characteristics of high and low temperature resistance (-192-260 ℃), corrosion resistance (strong acid, strong alkali, aqua regia and the like), weather resistance, high insulation, high lubrication, no adhesion, no toxicity and the like, and can have good performance in long-term bearing and friction. The stainless steel sliding plate 12 can slide with the wear-resistant sliding plate 13, so that the bridge borne by the upper support plate 11 is connected with the spherical cap plate 14 in a sliding manner and is not easy to break in an earthquake.
A plurality of protection cavities 141 are arranged inside the spherical cap plate 14 at positions close to the edge of the spherical cap plate 14, and the protection cavities 141 are arranged along the horizontal periphery of the spherical cap plate 14. The vibration sensing module 2 is placed in the protection cavity 141, the vibration sensing module 2 is formed by connecting a vibration sensing control switch 21, an electromagnet 22 and a main control power supply 23 in series, and the main control power supply 23 can be powered by alternating current, a lithium ion battery or solar energy; the cylindrical section of the electromagnet 22 is disposed toward the spherical surface of the spherical crown plate 14 in the horizontal direction, and a placement entrance is provided on the spherical crown plate 14, which facilitates maintenance and replacement of the vibration sensing module 2.
The locking module 3 is connected in series with a clamping block 31, a controlled power supply 33 and a closing contact 34, one end of the clamping block 31 is connected with a telescopic spring 32, the telescopic spring 32 is connected in series in a circuit of the locking module 3, the other end of the clamping block 31 is opposite to and has a distance with the closing contact 34, the closing contact 34 is arranged at the edge of the stainless steel sliding plate 12, and the other side of the closing contact 34 is close to the spherical crown plate 14.
The vibration sensing module 2 is connected in series with a vibration sensing control switch 21, an electromagnet 22 and a main control power supply 23, the clamping block 31 is made of magnetic metal, and one end of the electromagnet 22 is attached to the closed contact 34.
The circumference of the supporting seat 1 is provided with a protective surrounding sleeve 111, the upper part of the protective surrounding sleeve 111 is provided with a rebound groove 112, the bottom of the rebound groove 112 is fixed with one end of the expansion spring 32 far away from the clamping block 31, and the depth of the rebound groove 112 is equal to the sum of the length of the clamping block 31 and the natural length of the expansion spring 32.
At ordinary times, the circuit of the vibration sensing module 2 is communicated, the vibration sensing control switch 21 is closed, the vibration detection state is kept, the electromagnet 22 generates a magnetic field and generates attraction force on the clamping block 31, and at the moment, the clamping block 31 stretches the extension spring 32; when the vibration sensing module 2 senses vibration, the vibration sensing control switch 21 is turned off, the vibration sensing module 2 is powered off, the electromagnet 22 has no magnetic field at this time, the expansion spring 32 contracts, therefore, the clamping block 31 is retracted into the rebounding groove 112 under the pulling of the expansion spring 32, at this time, no clamping block 31 is clamped between the spherical crown plate 14 and the spherical faceplate 17, so that the spherical crown plate 14 and the spherical faceplate 17 can slide relatively, and the buffering effect is achieved in an earthquake, so that the bridge is not easy to break.
The lower part of the supporting seat 1 comprises a lower supporting seat plate 15, a spherical surface plate 17 is arranged on the upward surface of the lower supporting seat plate 15, the radian orientation of the spherical surface plate 17 is consistent with that of the spherical crown plate 14, and the curvature radius of the surface of the spherical surface plate 17 is slightly larger than that of the surface of the spherical crown plate 14. The radian orientations of the spherical panel 17 and the spherical crown plate 14 are consistent, so that the spherical surface of the spherical panel 17 can be attached to the spherical surface of the spherical crown plate 14; and the radius of curvature of the surface of the spherical surface plate 17 is equal to or greater than the radius of curvature of the surface of the spherical crown plate 14, so that the spherical crown plate 14 is not easily taken out of the sphere surface plate 17 when the spherical crown plate 14 is rotated on the spherical surface plate 17.
The plate-type rubber 16 has reliable working performance, good elastic damping, reduced impact of dynamic load on the bridge span structure and the abutment, and improved bridge stress performance. Since the slab rubber 16 is disposed in the lower support plate 15, the rubber deterioration caused by the direct sunlight can be avoided, and therefore the slab rubber 16 hardly needs frequent maintenance, and the maintenance workload can be reduced. The uneven elastic compression of the rubber sheet 162 realizes rotation; the shear deformation of the rubber sheet 162 realizes horizontal displacement; the slab rubber 16 has a simple structure, and the thin steel plates 161 and the rubber sheets 162 which are alternately stacked can improve the vertical bearing capacity of the aseismic bearing.
The lower seat plate 15 is filled with a slab rubber 16, and the slab rubber 16 includes thin steel plates 161 and rubber pieces 162 that are alternately laminated. A lead core 163 penetrates through the middle position of the plate rubber 16; the periphery of the plate rubber is also provided with a rubber protective sleeve 164.
The upper support plate 11 and the lower support plate 15 are hinged with an access plate 113 through bolts. The strap 113 can restrict the displacement between the upper support plate 11 and the lower support plate 15, so that the upper support plate 11 and the lower support plate 15 are not easily restored to their original positions due to an excessive amount of displacement.
The implementation principle of the embodiment is as follows: the supporting seat 1 is abutted by the arc-shaped spherical crown plate 14 and the spherical panel 17, and the stainless steel sliding plate 12 at the upper part of the supporting seat 1 and the wear-resistant sliding plate 13 generate relative sliding, so that the supporting seat 1 has a buffering effect during an earthquake, and the plate-type rubber 16 arranged in the lower supporting plate 15 of the supporting seat 1 can play a role in buffering and supporting; a clamping block 31 is arranged in a gap at the joint of the spherical crown plate 14 and the spherical plate 17; referring to fig. 2, when the vibration sensor control switch is closed, the electromagnet 22 is energized, and when the electromagnet 22 is energized, the electromagnet 22 generates magnetism to attract the clamping block 31, so that the upper part and the lower part of the supporting seat 1 are difficult to generate relative motion, and therefore the supporting seat 1 is a fixed supporting seat at this time; referring to fig. 3, when vibration is sensed, the vibration sensor control switch is turned off, the electromagnet 22 is no longer magnetic, so that the clamping block 31 extends into the rebound groove 112 under the action of the recovery deformation of the expansion spring 32, and the spherical crown plate 14 and the spherical plate 17 of the bearing seat 1 can rotate to play a role of buffering.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The utility model provides an antidetonation support with auto-induction unlocking means, includes bearing (1), its characterized in that: the supporting seat (1) is composed of an upper portion and a lower portion, a spherical crown plate (14) is arranged on the upper portion, a spherical face plate (17) is arranged on the lower portion, the spherical crown plate (14) is attached to and abutted against the spherical face plate (17), a locking module (3) for preventing sliding between the spherical crown plate (14) and the spherical face plate (17) is arranged at the joint of the spherical crown plate (14) and the spherical face plate (17), and a vibration sensing module (2) capable of controlling locking and unlocking of the locking module (3) is further arranged on the upper portion.
2. An anti-seismic support with an automatic induction unlocking device according to claim 1, characterized in that: the locking module (3) is connected with a clamping block (31), a controlled power supply (33) and a closed contact (34) in series, one end of the clamping block (31) is connected with an expansion spring (32), the expansion spring (32) is connected in series in a circuit of the locking module (3), the other end of the clamping block (31) is opposite to the closed contact (34) and has a distance, the closed contact (34) is arranged at the edge of the stainless steel sliding plate (12), and the other side of the closed contact (34) is close to the spherical crown plate (14).
3. An anti-seismic support with an automatic induction unlocking device according to claim 2, characterized in that: the vibration sensing module (2) is connected with a vibration sensing switch, an electromagnet (22) and a main control power supply (23) in series, the clamping block (31) is made of magnetic metal, and one end of the electromagnet (22) is attached to the closed contact (34).
4. An anti-seismic support with an automatic induction unlocking device according to claim 1, characterized in that: the protection surrounding sleeve (111) is arranged on the peripheral side of the supporting seat (1), the upper portion of the protection surrounding sleeve (111) is provided with a rebound groove (112), the groove bottom of the rebound groove (112) is fixed with one end, far away from the clamping block (31), of the telescopic spring (32), and the depth of the rebound groove (112) is larger than or equal to the sum of the length of the clamping block (31) and the natural length of the telescopic spring (32).
5. An anti-seismic support with an automatic induction unlocking device according to claim 1, characterized in that: the spherical crown plate is characterized in that a plurality of protection cavities (141) are arranged in the spherical crown plate (14), the protection cavities (141) are close to the edge of the spherical crown plate (14), and the vibration sensing module (2) is arranged in the protection cavities (141).
6. An anti-seismic support with an automatic induction unlocking device according to claim 1, characterized in that: the upper portion of bearing (1) includes upper bracket board (11), upper bracket board (11) one side down is fixed with stainless steel slide (12), stainless steel slide (12) below butt has wear-resisting slide (13), wear-resisting slide (13) are fixed with spherical crown board (14).
7. An anti-seismic support with an automatic induction unlocking device according to claim 1, characterized in that: the lower part of the supporting seat (1) comprises a lower supporting seat plate (15), a spherical surface plate (17) is arranged on one upward surface of the lower supporting seat plate (15), the radian orientation of the spherical surface plate (17) is consistent with that of the spherical crown plate (14), and the curvature radius of the surface of the spherical surface plate (17) is equal to or larger than that of the surface of the spherical crown plate (14).
8. An anti-seismic support with auto-induction unlocking device according to claim 7, characterized in that: the lower support plate (15) is filled with plate rubber (16), and the plate rubber (16) comprises thin steel plates (161) and rubber sheets (162) which are alternately stacked.
9. An anti-seismic support with auto-induction unlocking device according to claim 8, characterized in that: a lead core (163) penetrates through the middle position of the plate rubber (16).
10. An anti-seismic support with an automatic induction unlocking device according to claim 1, characterized in that: a butt strap (113) is hinged between the upper part and the lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921905620.4U CN211200050U (en) | 2019-11-04 | 2019-11-04 | Anti-seismic support with automatic induction unlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921905620.4U CN211200050U (en) | 2019-11-04 | 2019-11-04 | Anti-seismic support with automatic induction unlocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211200050U true CN211200050U (en) | 2020-08-07 |
Family
ID=71885030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921905620.4U Expired - Fee Related CN211200050U (en) | 2019-11-04 | 2019-11-04 | Anti-seismic support with automatic induction unlocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211200050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195765A (en) * | 2020-10-20 | 2021-01-08 | 成都市新筑路桥机械股份有限公司 | Mechanical locking friction pendulum vibration reduction and isolation support |
-
2019
- 2019-11-04 CN CN201921905620.4U patent/CN211200050U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195765A (en) * | 2020-10-20 | 2021-01-08 | 成都市新筑路桥机械股份有限公司 | Mechanical locking friction pendulum vibration reduction and isolation support |
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