CN212077612U

CN212077612U - Elastic connecting device for bridge expansion joint

Info

Publication number: CN212077612U
Application number: CN202020336584.0U
Authority: CN
Inventors: 张玲; 江娅; 张春丽
Original assignee: Chongqing Jianzhu College
Current assignee: Chongqing Jianzhu College
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-12-04
Anticipated expiration: 2030-03-17

Abstract

The utility model belongs to the field of bridge damping equipment, in particular to an elastic connecting device for a bridge expansion joint, which comprises a water stop strip and a plurality of telescopic mechanisms positioned below the water stop strip, wherein the plurality of telescopic mechanisms are distributed along the length direction of the expansion joint; telescopic machanism is including linking the support sleeve in the sealing rod inboard, sliding connection is at the support column in the support sleeve, set up two transverse connection seat in the support column outside and set up the vertical connecting seat in the support column below, even there is first flexible elastic component between vertical connecting seat and the support sleeve, two transverse connection seat even have the flexible elastic component of second respectively with the bridge main part of expansion joint both sides, and it has two at least first connecting rods that are parallel to each other to articulate between transverse connection seat and the support sleeve, it has the second connecting rod to articulate between transverse connection seat and the vertical connecting seat. Adopt the utility model discloses can prolong the life of current stagnant water strip.

Description

Elastic connecting device for bridge expansion joint

Technical Field

The utility model relates to a bridge shock attenuation equipment field, concretely relates to an elastic connection device for bridge expansion joint.

Background

Because the bridge is located outdoors, under the action of dynamic load, temperature and concrete shrinkage and creep, the beam body generates displacement, and the driving comfort and safety are affected when the displacement is too large. In order to adjust the displacement and connection between the bridge superstructure, expansion joints need to be provided. The expansion joint is required to be freely telescopic in two directions parallel to and perpendicular to the axis of the bridge, and the expansion joint is firm and reliable, and when a vehicle runs, the vehicle is smooth and free of sudden jump and noise; the rainwater and garbage soil can be prevented from infiltration and blocking; the installation, the inspection, the maintenance and the dirt elimination are all simple and convenient.

Bridge expansion joints are divided into the following five categories: steel support type, combined shear type (plate type), modulus support type, butt joint type and seamless expansion joint type. The butt joint type is the most common type, the butt joint type structure is that the expansion joint is arranged in a mode of taking an elastic material as a filler, the elastic material can also play a role of stopping water, the butt joint type structure is also called a water stop strip, the process completely depends on the elasticity of the elastic material to stretch, and the filler is easy to age, so that the filler is broken and falls off, and the due function of the filler is lost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an elastic connection device for bridge expansion joint can prolong the life of current sealing strip.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an elastic connecting device for a bridge expansion joint comprises a water stop strip and a plurality of telescopic mechanisms positioned below the water stop strip, wherein the plurality of telescopic mechanisms are distributed along the length direction of the expansion joint; telescopic machanism is including linking the support sleeve in the sealing rod inboard, sliding connection is at the support column in the support sleeve, set up two transverse connection seat in the support column outside and set up the vertical connecting seat in the support column below, even there is first flexible elastic component between vertical connecting seat and the support sleeve, two transverse connection seat even have the flexible elastic component of second respectively with the bridge main part of expansion joint both sides, and it has two at least first connecting rods that are parallel to each other to articulate between transverse connection seat and the support sleeve, it has the second connecting rod to articulate between transverse connection seat and the vertical connecting seat.

The principle of the scheme is as follows:

when the sealing rod receives the vertical load from the vehicle, the stagnant water is pushed down, drives the backup sleeve downstream, and the backup sleeve realizes supporting through horizontal connecting seat and first connecting rod again, therefore the backup sleeve passes through first connecting rod with pressure and transmits for horizontal connecting seat, and horizontal connecting seat transmits pressure for two flexible elastic component again. And because the back of the backup sleeve downstream, drive the one end downstream of first connecting rod and backup sleeve connection, and the length of first connecting rod is fixed unchangeable, consequently, first connecting rod drives the direction motion of horizontal connecting seat towards being close to the bridge main part, the one end that drives second connecting rod and horizontal connecting seat and be connected during the motion of horizontal connecting seat is close to the motion of bridge main part, because the length of second connecting rod is fixed unchangeable, consequently, the second connecting rod drives vertical connecting seat upward movement, make vertical connecting seat and backup sleeve be close to each other, the support column slides in the backup sleeve, first flexible elastic component is compressed, realize helping the sealing strip to resume deformation and realize twice shock attenuation through the slow resilience of first flexible elastic component and the flexible elastic component of second.

This scheme of adoption can reach following technological effect:

1. through the setting of the flexible elastic component of first flexible elastic component and second, can realize twice shock attenuation, the shock attenuation is effectual to can rely on elastic property between them to realize the recovery of sealing rod and warp, consequently prolonged the life of sealing rod.

2. The vertical load transmitted to the supporting sleeve by the water stop bars through the elastic pieces is decomposed, so that the local overlarge load can be prevented from being born, and the whole stress performance is good.

Furthermore, the number of the first connecting rods between the transverse connecting seat and the supporting sleeve is two. Two are the figure of minimum first connecting rod, only need adopt two first connecting rods can realize the vertical steady motion of support sleeve between horizontal connecting seat and the support sleeve.

Further, the length of the first connecting rod is equal to that of the second connecting rod. This is the preferred length of the second link.

Furthermore, L-shaped angle plates are fixed on two side edges of the water stop strip, and the angle plates are connected with the bridge main body through bolts. The bridge main body is connected with the water stop through the angle plate, so that the water stop is more stably connected.

Further, first flexible elastic component is first expanding spring, and first flexible elastic component twines outside the support column, and first expanding spring one end is fixed on the support sleeve, and the other end is fixed on vertical connecting seat.

Furthermore, one side of the transverse connecting seat close to the bridge main body is connected with a plurality of inserted rods inserted into the bridge main body, the second telescopic elastic piece is a second telescopic spring, and the second telescopic spring is wound on the inserted rods. The inserted link can play the supporting role to the second expanding spring.

Furthermore, the supporting sleeve is a first sleeve, a plurality of second sleeves are reserved in the bridge main body, a plurality of inserting rods are respectively connected in the plurality of second sleeves in a sliding mode, one end of each second telescopic spring is connected to the transverse connecting seat, and the other end of each second telescopic spring is connected to the angle plate. When the bridge main body is constructed, a second sleeve is reserved in the bridge main body, so that the insertion rod can be conveniently installed and fixed.

Furthermore, the number of the second sleeves of the inserted rods on two sides of the bridge expansion joint is three. Three second sleeves are preferred.

Further, the water stop strip is a rubber water stop strip. The rubber water stop strip is a common water stop strip and is made of easily available materials.

Further, the first sleeve and the second sleeve are both PVC sleeves. The PVC material has low cost and is easy to obtain.

Drawings

Fig. 1 is the embodiment of the utility model provides a along bridge expansion joint's transverse section.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the bridge comprises a bridge main body 1, an expansion joint 3, a water stop strip 4, a first sleeve 7, a support column 70, a first connecting rod 8, a transverse connecting seat 9, a second telescopic spring 10, an inserted rod 11, a second connecting rod 12, a first telescopic spring 13, a vertical connecting seat 14, a bolt 15, an angle plate 16 and a second sleeve 17.

As shown in fig. 1, the elastic connection device for a bridge expansion joint of this embodiment includes an arched water stop strip 4 and a plurality of telescopic mechanisms located below the water stop strip 4, the plurality of telescopic mechanisms are distributed along the length direction of the expansion joint 3, and fig. 1 only shows the structure of one of the telescopic mechanisms. In this embodiment, the water stop strip 4 is made of rubber, and for the stable connection between the water stop strip 4 and the bridge main body 1, two side edges of the water stop strip 4 are fixed with L-shaped angle plates 16, and the angle plates 16 are connected with the bridge main body 1 through bolts 15.

Telescopic machanism includes fixed connection at the inboard support sleeve of 4 waterstop, sliding connection is at support sleeve's support column 70, set up two horizontal connecting seat 9 in the support sleeve outside and vertical connecting seat 14 of fixed connection in support column 70 below, the support sleeve is first sleeve 7, the outer winding of support column 70 has first expanding spring 13, first expanding spring 13 top and 7 bottom fixed connection of first sleeve, 13 bottoms of first expanding spring and 14 top fixed connection of vertical connecting seat.

Articulated between horizontal connecting seat 9 and the first sleeve 7 have at least two first connecting rods 8 that are parallel to each other, and the number of first connecting rods 8 between horizontal connecting seat 9 and the first sleeve 7 is two in this embodiment, and it has second connecting rod 12 to articulate between horizontal connecting seat 9 and the vertical connecting seat 14, and first connecting rod 8 equals with the length of second connecting rod 12. The hinging mode in the embodiment is hinging through a pin shaft.

Reserve second sleeve 17 in bridge main part 1, the second sleeve 17 quantity of expansion joint 3 both sides is three, all is fixed with three parallel inserted bar 6 on the transverse connection seat 9, and three inserted bar 6 sliding connection are respectively in three second sleeve 17, and all twine on the inserted bar 6 has second expanding spring 10, and second expanding spring 10 one end is even on transverse connection seat 9, the other end is even on scute 16.

The working process of the embodiment is as follows:

when a vehicle runs on the road surface of the bridge and the water stop strip 4 is subjected to vertical load from the vehicle, the water stop strip 4 is pressed down to drive the first sleeve 7 to move downwards, and the first sleeve 7 is supported by the transverse connecting seat 9 and the first connecting rod 8, so that the first sleeve 7 transmits pressure to the transverse connecting seat 9 through the first connecting rod 8, the angle of the connecting rod 8 is changed to be horizontal at the moment, and the transverse connecting seat 9 is pushed by the transverse connecting seat 8 to lean against the bridge main body on two sides of the expansion joint; when the transverse connecting seat 9 leans to two sides, the angle of the second connecting rod 12 is changed, the vertical connecting seat 14 moves upwards, the sleeve 7 and the vertical connecting seat 14 approach each other to compress the first telescopic spring 13, and the first telescopic spring also has resilience pressure to act on the first sleeve 7; when the transverse connecting seat 9 leans against the bridge main body, the pressure is transmitted to the second telescopic spring 10, the second telescopic spring 10 is compressed, and the second telescopic spring 10 provides horizontal pressure to act on the transverse connecting seat 9; the telescopic spring 13 and the second telescopic spring 10 can help the sleeve 1 and the transverse connecting seat 9 return to the original position, and further help the water stop strip 4 to restore to the deformed position.

The utility model discloses a setting of first expanding spring 13 and second expanding spring 10, the elastic property that can rely on both the at utmost realizes the recovery of sealing rod 4 and warp, relies on self elastic expansion completely with traditional sealing rod 4 and compares, has prolonged sealing rod 4's life. The vertical load transmitted to the supporting sleeve by the water stop bars through the elastic pieces is decomposed, so that the local overlarge load can be prevented from being born, and the whole stress performance is good.

Simultaneously, two sets of springs have the shock absorption effect concurrently, for preventing to take place first expanding spring 13 and the instantaneous resilience of second expanding spring 10 and cause the problem of vibrations aggravation, it has sufficient frictional resistance to possess between support column 70 and first sleeve 7, second sleeve 17 and the inserted bar 11, make the flexible of first expanding spring 13 and second expanding spring 10 be slow flexible, the energy that the spring was inhaled the shake and is saved changes and consumes with the form of heat energy, the spring, sleeve and support column (inserted bar) have realized secondary shock attenuation jointly.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides an elastic connection device for bridge expansion joint which characterized in that: the water-stopping device comprises a water-stopping strip and a plurality of telescopic mechanisms positioned below the water-stopping strip, wherein the plurality of telescopic mechanisms are distributed along the length direction of a telescopic seam; the telescopic mechanism comprises a supporting sleeve connected to the inner side of the water stop strip, a supporting column slidably connected in the supporting sleeve, two transverse connecting seats arranged on the outer side of the supporting column and a vertical connecting seat arranged below the supporting column, wherein a first telescopic elastic part is connected between the vertical connecting seat and the supporting sleeve, a second telescopic elastic part is respectively connected between the two transverse connecting seats and the bridge main body on two sides of the expansion joint, at least two first connecting rods parallel to each other are hinged between the transverse connecting seats and the supporting sleeve, and a second connecting rod is hinged between the transverse connecting seats and the vertical connecting seat.

2. The flexible connection device for a bridge expansion joint as claimed in claim 1, wherein: the number of the first connecting rods between the transverse connecting seat and the supporting sleeve is two.

3. The flexible connection device for a bridge expansion joint as claimed in claim 2, wherein: the first connecting rod and the second connecting rod are equal in length.

4. An elastic connection device for a bridge expansion joint according to any one of claims 1 to 3, wherein: l-shaped angle plates are fixed on two side edges of the water stop strip, and the angle plates are connected with the bridge main body through bolts.

5. The flexible connection device for a bridge expansion joint as claimed in claim 4, wherein: the first telescopic elastic piece is a first telescopic spring, the first telescopic elastic piece is wound outside the support column, one end of the first telescopic spring is fixed on the support sleeve, and the other end of the first telescopic spring is fixed on the vertical connecting seat.

6. The flexible connection device for a bridge expansion joint as claimed in claim 5, wherein: one side of the transverse connecting seat, which is close to the bridge main body, is connected with a plurality of insertion rods inserted into the bridge main body, and the second telescopic elastic piece is a second telescopic spring wound on the insertion rods.

7. The flexible connection device for a bridge expansion joint as claimed in claim 6, wherein: the supporting sleeve is a first sleeve, a plurality of second sleeves are reserved in the bridge main body, a plurality of inserting rods are respectively connected in the plurality of second sleeves in a sliding mode, one end of each second telescopic spring is connected to the transverse connecting seat, and the other end of each second telescopic spring is connected to the angle plate.

8. The flexible connection device for a bridge expansion joint as claimed in claim 7, wherein: the number of the second sleeves on two sides of the bridge expansion joint is three.

9. An elastic connection device for a bridge expansion joint according to any one of claims 5 to 8, wherein: the water stop strip is a rubber water stop strip.

10. The flexible connection device for a bridge expansion joint as claimed in claim 7, wherein: the first sleeve and the second sleeve are both PVC sleeves.