CN218580457U

CN218580457U - High-durability bridge expansion device in marine environment

Info

Publication number: CN218580457U
Application number: CN202221319366.1U
Authority: CN
Inventors: 黄艳林; ***; 刘宏达; 杨厚林; 王照伟; 贾维君; 徐源庆; 南盼; 王亚东; 刘梦云; 李冲
Original assignee: Guangdong Provincial Highway Construction Co ltd; Huangmaohai Cross Sea Channel Management Center; China Railway Major Bridge Engineering Group Co Ltd MBEC; CCCC Highway Long Bridge Construction National Engineering Research Center Co Ltd
Current assignee: Guangdong Provincial Highway Construction Co ltd; Huangmaohai Cross Sea Channel Management Center; China Railway Major Bridge Engineering Group Co Ltd MBEC; CCCC Highway Long Bridge Construction National Engineering Research Center Co Ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2023-03-07
Anticipated expiration: 2032-05-30

Abstract

The utility model discloses a high durable bridge telescoping device under marine environment, including the ceramic coating of the upper and lower both sides of locating the supporting crossbeam, the antifriction plate is located respectively and is compressed tightly support bottom and pressure-bearing support top, ceramic coating and upside the antifriction plate forms first friction pair, it is vice with the antifriction plate formation second friction of downside, it is fixed with dustproof adhesive tape to compress tightly the support both sides, dustproof adhesive tape and ceramic coating sliding contact, telescopic dust cover both sides are fixed in pressure-bearing support and supporting crossbeam respectively, telescopic dust cover includes the fixed plate, enhancement node and folded sheet, fixed plate one end is fixed with the supporting crossbeam, the other end is fixed with the folded sheet, the folded sheet sets up the multi-disc and is the Z type and is connected, the junction of adjacent folded sheet is equipped with the enhancement node, the folded sheet of telescopic dust cover both sides respectively with fixed plate and pressure-bearing support fixed connection, the problem that bridge telescoping device gets into impurity and durability under the marine environment poor is solved.

Description

High-durability bridge expansion device in marine environment

Technical Field

The utility model relates to a bridge telescoping device technical field, more specifically relates to a high durable bridge telescoping device under marine environment.

Background

In order to meet the requirement of bridge deck deformation, bridge expansion joints are usually arranged at two beam ends, between the beam ends and an abutment or at the hinged position of a bridge, and meanwhile, in order to meet the requirement of smooth traffic and bearing capacity providing of vehicles at the expansion joints, various types of bridge expansion devices are required to be installed at the expansion joints, wherein the modular expansion devices are widely applied to the market as mainstream pressure-bearing expansion devices due to the excellent characteristics of the modular expansion devices. Because the temperature, it is on-vehicle, the whole deformation of beam-ends that external reasons such as wind-load arouse, make the telescoping device be in the power deformation state of high frequency for a long time, the durability problem of telescoping device is worth focusing on, especially under the high salt in ocean, high humidity environment, then can accelerate the ageing and steel construction corrosion inefficacy problem such as of support element, consider to adopt novel wear-resisting in traditional telescoping device, corrosion-resistant material and good sealed dustproof accessory, it is the problem that needs the solution to carry out structural improvement on the normal use function that satisfies the telescoping device simultaneously.

The prior art has the defects; (1) The modulus type telescopic device supporting system mainly comprises an elastomer support, a stainless steel plate, a supporting beam and the like, wherein a friction pair adopts a stainless steel plate mirror, and is easy to damage in a high-salt and high-humidity marine environment; (2) The upper and lower friction pairs of the telescopic device are easy to enter impurities such as dust, rainwater and the like, influence the performance of the friction pairs and reduce the durability.

SUMMERY OF THE UTILITY MODEL

To prior art's above defect or improvement demand, the utility model provides a high durable bridge telescoping device under marine environment, including compressing tightly the support, the antifriction plate, ceramic coating, the supporting crossbeam, the pressure-bearing support, telescopic dust cover and dustproof adhesive tape, the antifriction plate is located the fixed recess who compresses tightly support and pressure-bearing support, the supporting crossbeam forms first friction pair and second friction pair with the antifriction plate of upper and lower both sides respectively, two friction pairs all include ceramic coating, this coating level sets up in the surface of supporting crossbeam, the antifriction plate forms the sliding contact face with ceramic coating mirror surface contact, compressing tightly the fixed dustproof adhesive tape of support side, dustproof adhesive tape and ceramic coating sliding contact, be used for protecting first friction pair not to receive the dust, impurity influences such as rainwater, telescopic dust cover is fixed in on pressure-bearing support and the supporting crossbeam, telescopic dust cover can be made by storehouse rubber or plastics, can take place flexible displacement along with the antifriction plate slip of downside, realize the vice whole cover of advancing of second friction pair, the problem that bridge telescoping device gets into impurity easily and durability is poor under the marine environment has been solved.

In order to achieve the above object, the utility model provides a high durable bridge telescoping device under marine environment, include:

the dustproof device comprises a compression support, wear-resistant plates, ceramic coatings, a supporting beam, a pressure-bearing support, a telescopic dustproof cover and dustproof rubber strips, wherein the ceramic coatings are respectively sprayed on the upper side and the lower side of the supporting beam, the wear-resistant plates are respectively arranged at the bottom of the compression support and the top of the pressure-bearing support, the ceramic coatings and the wear-resistant plates on the upper side form a first friction pair, and form a second friction pair with the wear-resistant plates on the lower side, the dustproof rubber strips are fixed on the two sides of the compression support, the dustproof rubber strips are in sliding contact with the ceramic coatings, and the two sides of the telescopic dustproof cover are respectively fixed on the pressure-bearing support and the supporting beam;

the telescopic dust cover comprises a fixed plate, a reinforcing node and folding plates, one end of the fixed plate is fixed with the supporting beam, the other end of the fixed plate is fixed with the folding plates, the folding plates are arranged in a plurality of Z-shaped connection modes, the reinforcing node is arranged at the joint of every two adjacent folding plates, and the folding plates on two sides of the telescopic dust cover are fixedly connected with the fixed plate and the pressure bearing support respectively.

Further, the telescoping dust boot includes a first fixing bolt threadedly engaged with the support beam through the fixing plate.

Furthermore, the folding plate and the fixing plate are fixed on the reinforcing node through inserting, and the reinforcing node is a cylinder with a slot.

Further, dustproof adhesive tape includes sliding part, transition portion, pressure strip and second fixing bolt, the sliding part bottom with ceramic coating laminating, both sliding contact, transition portion with sliding part integrated into one piece, the laminating of transition portion compresses tightly the support, second fixing bolt will transition portion is fixed in compress tightly the support, second fixing bolt passes the pressure strip with it with transition portion is fixed.

Furthermore, the bottom of the pressing support and the top of the pressure bearing support are both provided with fixing grooves, the wear-resisting plates are in a plane plate shape and are fixedly embedded in the fixing grooves.

Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:

1. the utility model provides a high durable bridge telescoping device under marine environment, including compressing tightly the support, the antifriction plate, ceramic coating, the supporting crossbeam, the pressure-bearing support, telescopic dust cover and dustproof adhesive tape, the antifriction plate is located the fixed recess who compresses tightly support and pressure-bearing support, the supporting crossbeam is vice with the antifriction plate formation first friction of upper and lower both sides respectively and second friction is vice, two friction are vice to include ceramic coating, this coating level sets up in the surface of supporting crossbeam, the antifriction plate forms the sliding contact face with ceramic coating mirror surface contact, compressing tightly the fixed dustproof adhesive tape of support side, dustproof adhesive tape and ceramic coating sliding contact, be used for protecting first friction is vice not influenced by the dust, impurity such as rainwater influences, telescopic dust cover is fixed in on pressure-bearing support and the supporting crossbeam, telescopic dust cover can be made by storehouse rubber or plastics, can take place flexible displacement along with the slip of downside antifriction plate, realize the vice whole cover that advances of second friction, the easy problem that gets into impurity and durability are poor of bridge telescoping device under the marine environment has been solved.

2. The utility model provides a high durable bridge telescoping device under marine environment, the telescopic dust cover of adoption includes the fixed plate, strengthen node and folded sheet, its one end of fixed plate and supporting crossbeam spiro union, the other end is connected with the folded sheet, the folded sheet is equipped with the multi-disc according to the vice home range of second friction, be Z type end connection, make the scalable whole length of realization change of polylith folded sheet, thereby adapt to the vice home range of second friction, the folded sheet of telescopic dust cover both sides respectively with fixed plate and pressure-bearing support fixed connection, for the resistant ability of bending of reinforcing, junction at adjacent folded sheet, and the folded sheet is equipped with the enhancement node with the junction of fixed plate, folded sheet and fixed plate adopt bonding or insert and be fixed in, the enhancement node is strengthened the durability that has improved telescopic dust cover to the junction of bending.

Drawings

Fig. 1 is a cross-sectional view of a high durability bridge expansion device in a marine environment according to an embodiment of the present invention;

fig. 2 is a partial enlarged view a of a high durability bridge expansion device in a marine environment according to an embodiment of the present invention;

fig. 3 is a front view of the embodiment of the present invention, which provides a highly durable bridge expansion device in a marine environment.

In all the figures, the same reference numerals denote the same features, in particular: 1-pressing support, 2-wear plate, 3-ceramic coating, 4-supporting beam, 5-pressure-bearing support, 6-telescopic dust cover, 7-dust-proof rubber strip, 61-first fixing bolt, 62-fixing plate, 63-reinforced node, 64-folding plate, 71-sliding part, 72-transition part, 73-pressing plate and 74-second fixing bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1-3, the present embodiment provides a high durability bridge expansion device in a marine environment, which includes a compression support 1, an abrasion-resistant plate 2, a ceramic coating 3, a support beam 4, a pressure-bearing support 5, a telescopic dust cover 6, and a dust-proof rubber strip 7, wherein the compression support 1 and the pressure-bearing support 5 are both provided with fixing grooves, the abrasion-resistant plate 2 is a planar plate-shaped structure, and is embedded and fixed in the fixing grooves, and the abrasion-resistant plate 2 protrudes from the compression support 1 and the pressure-bearing support 5 respectively, the support beam 4 forms friction pairs with the abrasion-resistant plates 2 on the upper and lower sides respectively, as defined in the present embodiment, the upper abrasion-resistant plate 2 forms a first friction pair with the ceramic coating 3, the lower abrasion-resistant plate 2 forms a second friction pair with the ceramic coating 3, preferably, the friction pairs include the ceramic coating 3, the coating is horizontally disposed on the surface of the support beam 4, and covers the active range of the abrasion-resistant plate 2, the abrasion-resistant plate 2 forms a sliding contact surface with the ceramic coating 3, further, the dust-proof rubber strip 7 is fixed on the side of the compression support 1, and the dust-proof rubber strip 7 can be easily covered on the lower side of the telescopic dust cover 6 and the telescopic dust-resistant rubber support, thereby solving the problem that the telescopic dust cover can easily caused by the telescopic dust cover and the telescopic dust cover.

Further, as shown in fig. 1 and 2, the telescopic dust cover 6 includes a first fixing bolt 61, a fixing plate 62, a reinforcing node 63, and a folding plate 64, wherein the fixing plate 62 is made of a rigid plastic or metal plate, one end of the fixing plate 62 contacts with the supporting beam 4, and the other end is connected with the folding plate 64, the first fixing bolt 61 passes through the fixing plate 62 and is screwed to the supporting beam 4 for fixing the fixing plate 62, the folding plate 64 is provided with a plurality of pieces in a Z-shaped end connection according to the range of motion of the second friction pair, and the folding plates 64 are made of plastic or rubber, so that the folding plates 64 can be compressed and drawn together, and the change of the overall length can be realized by stretching, thereby adapting to the range of motion of the second friction pair, furthermore, the folding plates 64 on the two sides are respectively fixedly connected with the fixing plate 62 and the pressure-bearing support 5, for enhancing the bending resistance, reinforcing nodes 63 are fixedly arranged at the joints of the folding plates 64 and the fixing plate 62, the nodes adopt cylindrical structures with slots, the folding plates 64 and the fixing plate 62 adopt a bonding or insertion fixing mode, the reinforcing nodes 63 are used for reinforcing the bending joints, the durability of the telescopic dust cover 6 is improved, the folding plates 64, the fixing plate 62 and the reinforcing nodes 63 are symmetrically arranged on the two sides of the pressure-bearing support 5, and the covering of the two-way displacement stroke of the second friction pair is realized.

Further, as shown in fig. 1 to 3, the dustproof rubber strip 7 includes a sliding portion 71, a transition portion 72, a pressing plate 73 and a second fixing bolt 74, wherein the sliding portion 71 and the transition portion 72 are both made of wear-resistant engineering plastics or rubber and have a certain resilience, the cross section of the sliding portion 71 is in a flat triangular shape, the bottom surface of the sliding portion 71 is gradually attached to the ceramic coating 3, during sliding of the first friction pair, the sliding portion 71 slides on the ceramic coating 3, the contact surface of the upper wear plate 2 and the ceramic coating 3 is blocked from impurities such as dust, and further, the transition portion 72 and the sliding portion 71 are integrally formed, one side of the transition portion 72 is connected with the sliding portion 71, the other side of the transition portion is attached to the pressing support 1, the second fixing bolt 74 fixes the transition portion 72 to the pressing support 1, in order to enhance the tightness degree of attachment of the transition portion 72 to the pressing support 1, the position where the second fixing bolt 74 penetrates through the transition portion 72 is provided with the pressing plate 73, the pressing plate 73 has similar effects as a gasket, the contact surface of the second fixing bolt 74 and the transition portion 72 is increased, the pressing force of the transition portion 72 and the second fixing bolt 72 is more balanced, the pressing plate is provided with the second fixing bolt 73, and the second fixing bolt 71 is provided with a function of preventing the second fixing bolt 71 from cracking in a long-time, and a long-time of the second fixing strip 7, and further preventing the sliding portion from being provided with a symmetrical arrangement, and a symmetrical arrangement of the second fixing bolt for realizing the second fixing bolt 71 and a symmetrical arrangement in the sliding portion 7 in the sliding portion and a long-time of the sliding portion.

Further, as shown in fig. 1-3, the fixing groove is embedded in the pressing support 1 by vulcanization, the support is pressed to displace the weather-resistant support, and the ceramic coatings 3 on the first friction pair and the second friction pair are sprayed, so that the support is prevented from falling off, has resistance to high-salt and high-humidity air in the marine environment, and improves the corrosion resistance and the durability of the telescopic device.

It will be understood by those skilled in the art that the foregoing is merely exemplary of the present invention, and is not intended to limit the invention to the particular forms disclosed, and all changes, equivalents and modifications that fall within the spirit and scope of the invention are intended to be embraced thereby.

Claims

1. The high-durability bridge expansion device under the marine environment is characterized by comprising a compression support (1), an abrasion-resistant plate (2), a ceramic coating (3), a supporting cross beam (4), a pressure-bearing support (5), a telescopic dust cover (6) and a dust-proof adhesive tape (7), wherein the ceramic coating (3) is respectively sprayed on the upper side and the lower side of the supporting cross beam (4), the abrasion-resistant plate (2) is respectively arranged at the bottom of the compression support (1) and the top of the pressure-bearing support (5), the ceramic coating (3) and the abrasion-resistant plate (2) on the upper side form a first friction pair, the abrasion-resistant plate (2) on the lower side form a second friction pair, the dust-proof adhesive tape (7) is fixed on the two sides of the compression support (1), the dust-proof adhesive tape (7) is in sliding contact with the ceramic coating (3), and the two sides of the telescopic dust cover (6) are respectively fixed on the pressure-bearing support (5) and the supporting cross beam (4);

the telescopic dust cover (6) comprises a fixing plate (62), reinforcing nodes (63) and folding plates (64), one end of the fixing plate (62) is fixed to the supporting cross beam (4), the other end of the fixing plate is fixed to the folding plates (64), the folding plates (64) are arranged in a multi-piece Z-shaped connection mode, the reinforcing nodes (63) are arranged at the joints of the adjacent folding plates (64), and the folding plates (64) on the two sides of the telescopic dust cover (6) are fixedly connected with the fixing plate (62) and the pressure-bearing support (5) respectively.

2. The high durability bridge expansion device in marine environment as claimed in claim 1, wherein the telescopic dust cover (6) comprises a first fixing bolt (61), and the first fixing bolt (61) passes through the fixing plate (62) and is screwed with the supporting beam (4).

3. The expansion device for high durability bridges in marine environment as claimed in claim 2, wherein the folding plate (64) and the fixing plate (62) are fixed by inserting into the reinforcing node (63), and the reinforcing node (63) is a cylinder with a slot.

4. The high-durability bridge expansion device in the marine environment according to claim 1, wherein the dustproof rubber strip (7) comprises a sliding portion (71), a transition portion (72), a pressing plate (73) and a second fixing bolt (74), the bottom of the sliding portion (71) is attached to the ceramic coating (3) and in sliding contact with the ceramic coating, the transition portion (72) and the sliding portion (71) are integrally formed, the transition portion (72) is attached to the pressing support (1), the transition portion (72) is fixed to the pressing support (1) by the second fixing bolt (74), and the second fixing bolt (74) penetrates through the pressing plate (73) to fix the transition portion (72).

5. A high-durability bridge expansion device in marine environment according to any one of claims 1-4, characterized in that the bottom of the compression support (1) and the top of the pressure support (5) are provided with fixing grooves, and the wear-resisting plate (2) is in a plane plate shape and is embedded and fixed in the fixing grooves.