CN207176492U

CN207176492U - A kind of bridge extension joint

Info

Publication number: CN207176492U
Application number: CN201721228959.6U
Authority: CN
Inventors: 毛丽娜
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-09-24
Filing date: 2017-09-24
Publication date: 2018-04-03
Anticipated expiration: 2027-09-24

Abstract

The utility model discloses a kind of bridge extension joint, including beam body and supporting plate, supporting plate is mounted at left and right sides of the top inner chamber of the beam body, the upper surface of first sliding block is provided with top plate, the top plate is connected with the top inner wall overlap joint of beam body, the bottom of the supporting plate is provided with backing plate, the bottom of the backing plate is provided with fore-set, the intracavity bottom of the beam body is provided with first connecting rod, push rod is mounted at left and right sides of 3rd rotating shaft, the push rod is connected by the second rotating shaft with supporting plate, the upper surface of the push rod is provided with the 3rd spring, the top of 3rd spring is connected with top plate overlap joint.The bridge extension joint, by the cooperation of the first slideway and the first sliding block, and the cooperation of the 3rd spring and push rod, the bottom of top plate has been supported, reduces its old damage degree, first connecting rod prevents the excessive deformation withstood because of compression with second connecting rod, the life-span is added, the stability of bridge is improved.

Description

A kind of bridge extension joint

Technical field

Bridge technology field is the utility model is related to, specially a kind of bridge extension joint.

Background technology

With the fast development of highway transportation, traffic volume of highway and carload lot are also increasing, and this is to highway bridge The properties of retractor device propose higher requirement, such as the U of Application No. CN 203514189 utility model patent, Including structures such as welded square tube, pin, support beam and side bar shaped steel, although the structure of the utility model patent is simple, by It is bad in its damping effect, the life-span of retractor device had both been shortened, result in the bad stability of bridge again, with very big peace Full hidden danger.

Utility model content

The purpose of this utility model is to provide a kind of bridge extension joint, asked with solve to propose in above-mentioned background technology Topic.

To achieve the above object, the utility model provides following technical scheme：A kind of bridge extension joint, including beam body and Supporting plate, the top inner chamber left and right sides of the beam body are mounted on supporting plate, and the upper surface front and rear sides of the supporting plate are mounted on First slideway, the inner chamber of first slideway are provided with the first sliding block, and the upper surface of first sliding block is provided with top plate, described Top plate is connected with the top inner wall overlap joint of beam body, and the bottom of the supporting plate is provided with backing plate, and the bottom of the backing plate is provided with top Post, the intracavity bottom of the beam body are provided with first connecting rod, and the left side outer wall of the first connecting rod is provided with second connecting rod, described The inner chamber of second connecting rod is provided with the first spring, and the right-hand member of first spring is connected with first connecting rod, the first connecting rod Right-hand member is connected with fore-set respectively with the left end of second connecting rod, and the inwall bottom of the supporting plate is provided with the second slideway, and described second The inner chamber of slideway is provided with the second sliding block, and second sliding block is connected by the 4th rotating shaft with extension bar, and the extension bar passes through first Rotating shaft is connected with the top inner wall of supporting plate, and the lower surface of the extension bar is provided with second spring, the bottom of the second spring with Supporting plate is connected, and the bottom of the top plate is provided with the 3rd rotating shaft, and push rod is mounted at left and right sides of the 3rd rotating shaft, described Push rod is connected by the second rotating shaft with supporting plate, and the upper surface of the push rod is provided with the 3rd spring, the top of the 3rd spring It is connected with top plate overlap joint.

Preferably, the top inner wall of the fore-set is provided with slot, and the inner chamber of the slot is provided with jacking block, the jacking block Upper surface at left and right sides of be mounted on the 4th spring, the top of the 4th spring is connected with the top inner wall of slot, described The bottom of jacking block is connected with the bottom interior wall overlap joint of fore-set.

Preferably, block is mounted at left and right sides of the top plate, the lower surface of the block is connected with the first sliding block.

Preferably, it is mounted on cushion block at left and right sides of the inner chamber of first slideway.

Preferably, the bottom of the fore-set is provided with bottom plate, and the bottom plate is connected with the bottom interior wall of beam body.

Compared with prior art, the beneficial effects of the utility model are：The bridge extension joint, pass through the first slideway and The cooperation of one sliding block, allow top plate free vibration on supporting plate when being squeezed, keep uniform force, prevent its some position Put and weigh and aging for a long time, by second spring, lift on extension bar has been withstood supporting plate, reduce the burden of supporting plate, and the 3rd The cooperation of spring and push rod, the bottom of top plate is supported, reduce its old damage degree, first connecting rod prevents with second connecting rod The excessive deformation because of compression is withstood, adds the life-span, the stability of bridge is improved.

Brief description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is support board structure schematic diagram of the present utility model；

Fig. 3 is push rod structure schematic diagram of the present utility model；

Fig. 4 is ejecting block schematic diagram of the present utility model.

In figure：1st, beam body, 2, supporting plate, the 3, first slideway, 4, top plate, the 5, first sliding block, 6, backing plate, 7, fore-set, 8, first Connecting rod, the 9, first spring, 10, second connecting rod, 11, extension bar, 12, first rotating shaft, 13, second spring, the 14, second sliding block, 15, Two slideways, the 16, the 3rd spring, the 17, second rotating shaft, the 18, the 3rd rotating shaft, 19, push rod, 20, jacking block, 21, slot, the 22, the 4th bullet Spring, 23, block, 24, cushion block, 25, bottom plate, the 26, the 4th rotating shaft.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

Fig. 1-4 are referred to, the utility model provides a kind of technical scheme：A kind of bridge extension joint, including beam body 1 and support Plate 2, the top inner chamber left and right sides of beam body 1 are mounted on supporting plate 2, and supporting plate 2 occurs elastic deformation and reduces the pressure that beam body 1 is born Power, the upper surface front and rear sides of supporting plate 2 are mounted on the first slideway 3, and the inner chamber of the first slideway 3 is provided with the first sliding block 5, and first The upper surface of sliding block 5 is provided with top plate 4, free vibration when elastic deformation occurs for supporting plate 2 of top plate 4 is not blocked Extremely, top plate 4 is connected with the top inner wall overlap joint of beam body 1, and the bottom of supporting plate 2 is provided with backing plate 6, and the bottom of backing plate 6 is provided with top Post 7, when vehicle passes through, beam body 1 is squeezed and depresses top plate 4, it is born pressure when automobile passes through, now withstands 7 Stress, and be compressed downwardly, elastic deformation is carried out both to reduce the pressure that beam body is subject to, and has reached the effect of damping again, beam The intracavity bottom of body 1 is provided with first connecting rod 8, and the left side outer wall of first connecting rod 8 is provided with second connecting rod 10, second connecting rod 10 Inner chamber is provided with the first spring 9, and the right-hand member of the first spring 9 is connected with first connecting rod 8, the right-hand member and second connecting rod of first connecting rod 8 10 left end is connected with fore-set 7 respectively, withstands 7 transverse direction and broadens, and extrudes the first bullet between first connecting rod 8 and second connecting rod 10 Spring 9, prevent because deformation is excessive, and aging, or even damage, the inwall bottom of supporting plate 2 is provided with the second slideway 15, the second slideway 15 Inner chamber the second sliding block 14 is installed, the second sliding block 14 is connected by the 4th rotating shaft 26 with extension bar 11, and extension bar 11 passes through first turn Axle 12 is connected with the top inner wall of supporting plate 2, and the lower surface of extension bar 11 is provided with second spring 13, the bottom of second spring 13 and support Plate 2 is connected, and the stress of supporting plate 2 is extruded, and causes the top of extension bar 11 to move down, and makes the second sliding block 14 of its bottom along the second slideway 15 move laterally, have disperseed stress, and extension bar 11 now also compresses the 3rd spring 16, it is withstood extension bar 11, to reduce supporting plate 2 Pressure, it is therefore prevented that the aging or damage of supporting plate 2, the bottom of top plate 4 are provided with the 3rd rotating shaft 18, the left and right two of the 3rd rotating shaft 18 Side is mounted on push rod 19, and push rod 19 is connected by the second rotating shaft 17 with supporting plate 2, and the upper surface of push rod 19 is provided with the 3rd spring 16, the top of the 3rd spring 16 is connected with the overlap joint of top plate 4, and push rod 19 withstands top to contract, the 3rd spring 16 of its upper surface Plate 7, it is excessive and damage always to not only prevent its stress, has also withstood supporting plate 2, the top inner wall of fore-set 7 is provided with slot 21, slot 21 inner chamber is provided with jacking block 20, and the 4th spring 22, the top of the 4th spring 22 are mounted at left and right sides of the upper surface of jacking block 20 End is connected with the top inner wall of slot 21, and the bottom of jacking block 20 overlaps with the bottom interior wall of fore-set 7 to be connected, for withstand 7 reductions by Power, its damage being prevented, the left and right sides of top plate 4 is mounted on block 23, and the lower surface of block 23 is connected with the first sliding block 5, the Cushion block 24 is mounted at left and right sides of the inner chamber of one slideway 3, the bottom of fore-set 7 is provided with bottom plate 25, bottom plate 25 and the bottom of beam body 1 Portion's inwall is connected.

When vehicle passes through, beam body 1 is squeezed and depresses top plate 4, it is born pressure when automobile passes through, now pushes up Firmly 7 stress, and be compressed downwardly, elastic deformation is carried out both to reduce the pressure that beam body is subject to, and has reached the effect of damping again, It is pressed down against due to withstanding 7 stress, according to the principle of the conservation of matter in physics, now withstands 7 transverse direction and broaden, extruding the The first spring 9 between one connecting rod 8 and second connecting rod 10, is prevented because deformation is excessive, and aging, in addition damage, now supporting plate 2 by Power is extruded, and causes the top of extension bar 11 to move down, and the second sliding block 14 of its bottom is moved laterally along the second slideway 15, point Stress is dissipated, extension bar 11 now also compresses the 3rd spring 16, it is withstood extension bar 11, to reduce the pressure of supporting plate 2, it is therefore prevented that support The aging or damage of plate 2, now because the elastic deformation push rod 19 for withstanding 7 pushes up to contract, the 3rd spring 16 of its upper surface Firmly top plate 7, it is excessive and damage always to not only prevent its stress, has also withstood supporting plate 2, has prevented its displacement.

In description of the present utility model, it is to be understood that term " coaxial ", " bottom ", " one end ", " top ", " in Portion ", " other end ", " on ", " side ", " top ", " interior ", " front portion ", " center ", the orientation of the instruction such as " both ends " or position close It is to be described based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplifying, rather than Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore can not It is interpreted as to limitation of the present utility model.

In the utility model, unless otherwise clearly defined and limited, term " installation ", " setting ", " connection ", " Gu Calmly ", the term such as " spinning " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally； Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be with It is connection or the interaction relationship of two elements of two element internals, is limited unless otherwise clear and definite, for this area For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims

1. a kind of bridge extension joint, including beam body (1) and supporting plate (2), the top inner chamber left and right sides of the beam body (1) is pacified Equipped with supporting plate (2), it is characterised in that：The upper surface front and rear sides of the supporting plate (2) are mounted on the first slideway (3), and described The inner chamber of one slideway (3) is provided with the first sliding block (5), and the upper surface of first sliding block (5) is provided with top plate (4), the top Plate (4) is connected with the top inner wall overlap joint of beam body (1), and the bottom of the supporting plate (2) is provided with backing plate (6), the backing plate (6) Bottom is provided with fore-set (7), and the intracavity bottom of the beam body (1) is provided with first connecting rod (8), a left side for the first connecting rod (8) Side outer wall is provided with second connecting rod (10), and the inner chamber of the second connecting rod (10) is provided with the first spring (9), first spring (9) right-hand member is connected with first connecting rod (8), the right-hand member of the first connecting rod (8) and the left end of second connecting rod (10) respectively with top Post (7) is connected, and the inwall bottom of the supporting plate (2) is provided with the second slideway (15), the inner chamber installation of second slideway (15) There is the second sliding block (14), second sliding block (14) is connected by the 4th rotating shaft (26) with extension bar (11), and the extension bar (11) is logical The top inner wall that first rotating shaft (12) is crossed with supporting plate (2) is connected, and the lower surface of the extension bar (11) is provided with second spring (13), The bottom of the second spring (13) is connected with supporting plate (2), and the bottom of the top plate (4) is provided with the 3rd rotating shaft (18), described Push rod (19) is mounted at left and right sides of 3rd rotating shaft (18), the push rod (19) passes through the second rotating shaft (17) and supporting plate (2) It is connected, the upper surface of the push rod (19) is provided with the 3rd spring (16), and top and the top plate (4) of the 3rd spring (16) are taken Connect connected.

A kind of 2. bridge extension joint according to claim 1, it is characterised in that：The top inner wall peace of the fore-set (7) Equipped with slot (21), the inner chamber of the slot (21) is provided with jacking block (20), and the upper surface left and right sides of the jacking block (20) is 4th spring (22) is installed, the top of the 4th spring (22) is connected with the top inner wall of slot (21), the jacking block (20) bottom is connected with the bottom interior wall overlap joint of fore-set (7).

A kind of 3. bridge extension joint according to claim 1, it is characterised in that：The left and right sides of the top plate (4) is equal Block (23) is installed, the lower surface of the block (23) is connected with the first sliding block (5).

A kind of 4. bridge extension joint according to claim 1, it is characterised in that：The inner chamber of first slideway (3) is left Right both sides are mounted on cushion block (24).

A kind of 5. bridge extension joint according to claim 1, it is characterised in that：The bottom of the fore-set (7) is provided with Bottom plate (25), the bottom plate (25) are connected with the bottom interior wall of beam body (1).