CN215252247U

CN215252247U - Special joint for Bailey bridge

Info

Publication number: CN215252247U
Application number: CN202120401233.8U
Authority: CN
Inventors: 鲁俊忠; 丁吉强
Original assignee: Tai'an Junhe Metal Material Co ltd
Current assignee: Tai'an Junhe Metal Material Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-12-21
Anticipated expiration: 2031-02-24

Abstract

The utility model discloses a special joint for a Bailey bridge, wherein a bolt comprises a bolt head and a bolt rod, the bolt head and the bolt rod are of an integral structure, the bolt rod slides to penetrate through a connecting piece and Bailey sheets, a tightening nut is in threaded connection with the bolt rod, the bolt rod is symmetrically provided with limiting grooves on the outer surface, 2 limiting grooves are equidistantly provided with a plurality of locking holes, the Bailey sheets are connected through the connecting piece, after the bolt and the tightening nut are tightened and fixed, the limiting sleeve is sleeved on the bolt rod, when the limiting sleeve moves along the bolt rod, the locking rod moves along the sliding groove, the end surface of the locking rod, which is far away from a compression spring, is an inclined surface, the locking rod is inserted into the locking hole under the action of the compression spring, the position of the limiting sleeve, which is attached with the tightening nut, so that the limiting sleeve can limit the tightening nut to move towards the direction far away from the bolt head, plays a role in fixing.

Description

Special joint for Bailey bridge

Technical Field

The utility model relates to a technical field of bailey bridge specifically is a special joint of bailey bridge.

Background

The Bailey bridge is composed of lightweight standardized truss unit members, cross beams, longitudinal beams, bridge deck boards, bridge seats, connecting pieces and the like which are made of high-strength steel, the Bailey bridge can be assembled into the truss girder bridge suitable for various spans and loads on site rapidly by using special mounting equipment, and the prior utility model with the authorization publication number of CN208235308U is named as a Bailey bridge connecting piece which comprises a first connecting piece and a second connecting piece, wherein the first connecting piece is provided with a chamfer angle alpha, when the first connecting piece is connected with the Bailey piece for a long time, the sharp corners at the periphery of the first connecting piece can prevent the Bailey piece from damaging when the first connecting piece is in a friction type with the Bailey piece, thereby reducing the bearing capacity of the Bailey bridge, the second connecting piece is provided with a groove connected with the Bailey piece, a plurality of combined Bailey pieces can be arched by adjusting the included angle of the second connecting piece and the Bailey piece, so that the Bailey bridge is converted into an arched structure from a single linear type, even get more pleasing to the eye of bailey bridge, also make the arch bailey bridge compare the great improvement of sharp bailey bridge bearing capacity, the connecting piece adopts bolt and nut and bailey piece fixed connection, and is fixed effectual, is difficult to cause not hard up and connect the interrupt, nevertheless when connecting piece and bailey piece with bolt and tightening nut, the bolt with tighten the nut and receive external force and rock the time easily not hard up, provides a bailey bridge special joint for this reason specially.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, that is, to solve the above-mentioned problems of the prior art, the invention provides a connector for a beret bridge, which is easy to loosen when the connector and the beret are connected by a bolt and a tightening nut, and the bolt and the tightening nut are shaken by external force, the connector comprises beret plates for assembling the beret bridge and a connector for connecting each beret plate, both ends of the beret plates are provided with a female connector and a male connector which are used in cooperation with the connector, the connector comprises a first connecting block for connecting the female connector of the beret plate and a second connecting block for connecting the male connector of the beret plate, the first connecting block and the second connecting block are of an integral structure, the first connecting block and the female connector as well as the second connecting block and the male connector are connected by bolts and are fixed by tightening nuts, the bolt comprises a bolt head and a bolt rod, the bolt head and the bolt rod are of an integral structure, the shank of bolt slides through connecting piece and bailey piece, it is on the shank of bolt to screw up nut threaded connection, the symmetry is equipped with the spacing groove in appearance of shank of bolt, 2 the terminal surface equidistance that the spacing groove is close to mutually is equipped with a plurality of locking holes, on the shank of bolt and the one side cover of keeping away from the bolt head at the nut of screwing up be equipped with the stop collar, the internal surface symmetry of stop collar is equipped with the sliding tray, sliding connection has the locking lever that uses with the locking hole cooperation in the sliding tray, the locking lever is kept away from and is connected with compression spring between the terminal surface of shank of bolt and the sliding tray, compression spring's terminal surface is kept away from to the locking lever is the inclined plane.

Preferably, the locking rod is a rectangular locking rod, and the sliding groove is a rectangular sliding groove.

Preferably, the end face, far away from the bolt rod, of the locking rod is fixedly connected with an adjusting rod, and the adjusting rod penetrates through the side wall of the limiting sleeve in a sliding mode.

Preferably, the end face, close to the screwing nut, of the limiting sleeve is provided with anti-skidding threads.

Preferably, the bolt head is a polygonal bolt head, and polygonal grooves for limiting rotation of the bolt head are formed in the Bailey pieces and the connecting piece.

The utility model has the advantages of: the Bailey sheets are connected through the connecting piece, after being screwed up and fixed through the bolt and the screwing nut, the limiting sleeve is sleeved on the bolt rod, when the limiting sleeve moves along the bolt rod, the locking rod moves along the sliding groove, the end face, far away from the compression spring, of the locking rod is an inclined face, the locking rod is inserted into the locking hole under the action of the compression spring, the position, attached to the screwing nut, of the limiting sleeve is moved, the limiting sleeve can limit the screwing nut to move towards the direction far away from the bolt head, the fixing effect is achieved, and the bolt and the screwing nut are prevented from being loosened easily when being shaken by external force.

Drawings

Fig. 1 shows a schematic sectional structure of the present invention.

Fig. 2 shows an enlarged schematic view of a portion a of fig. 1.

The connecting piece comprises a reference numeral 1, a Bailey sheet, 101, a female connector, 102, a male connector, 2, a connecting piece, 21, a first connecting block, 22, a second connecting block, 3, a screwing nut, 4, a bolt head, 5, a bolt rod, 6, a limiting groove, 7, a locking hole, 8, a limiting sleeve, 9, a sliding groove, 10, a locking rod, 11, a compression spring, 12, an adjusting rod, 13 and a polygonal groove.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

Referring to fig. 1 and 2, the utility model provides a special joint for a bailey bridge, which comprises bailey pieces 1 for building the bailey bridge and a connecting piece 2 for connecting each bailey piece 1, wherein both ends of each bailey piece 1 are provided with a female connector 101 and a male connector 102 which are used in cooperation with the connecting piece 2, the connecting piece 2 comprises a first connecting block 21 for connecting the female connector 101 of the bailey piece 1 and a second connecting block 22 for connecting the male connector 102 of the bailey piece 1, the first connecting block 21 and the second connecting block 22 are of an integral structure, the first connecting block 21 and the female connector 101 as well as the second connecting block 22 and the male connector 102 are connected through bolts and are fixed by tightening nuts 3, each bolt comprises a bolt head 4 and a bolt rod 5, the bolt head 4 and the bolt rod 5 are of an integral structure, the bolt rod 5 slidably penetrates through the connecting piece 2 and the bailey pieces 1, the fastening nut 3 is in threaded connection with the bolt rod 5, the bolt rod 5 is symmetrically provided with limiting grooves 6 in appearance, 2 limiting grooves 6 are equidistantly provided with a plurality of locking holes 7 at the end face which is close to each other, a limiting sleeve 8 is sleeved on the bolt rod 5 and on one side of the fastening nut 3 away from the bolt head 4, sliding grooves 9 are symmetrically provided on the inner surface of each limiting sleeve 8, locking rods 10 which are matched with the locking holes 7 are connected in the sliding grooves 9 in a sliding mode, compression springs 11 are connected between the end faces of the locking rods 10 away from the bolt rod 5 and the sliding grooves 9, the end faces of the locking rods 10 away from the compression springs 11 are inclined planes, the bailey pieces 1 are connected through the connecting piece 2, and are fastened and fixed through the bolt and the fastening nut 3 during connection, after the bolt and the fastening nut 3 are fastened and fixed, the limiting sleeves 8 are sleeved on the bolt rod 5, when the stop collar 8 moves along the bolt rod 5, the locking rod 10 moves along the sliding groove 9, the end face, away from the compression spring 11, of the locking rod 10 is an inclined face, the locking rod 10 is inserted into the locking hole 7 under the action of the compression spring 11, and therefore the stop collar 8 can limit the movement of the tightening nut 3 in the direction away from the bolt head 4, and the fixing effect is achieved.

Specifically, the locking rod 10 is a rectangular locking rod, the sliding groove 9 is a rectangular sliding groove, and the locking rod 10 is placed and rotated, which affects the fixing effect.

Specifically, the end face, away from the bolt rod 5, of the locking rod 10 is fixedly connected with an adjusting rod 12, and the adjusting rod 12 penetrates through the side wall of the limiting sleeve 8 in a sliding mode, so that the locking rod is convenient to detach.

Specifically, the end surface of the limiting sleeve 8 close to the tightening nut 3 is provided with anti-skid threads.

Specifically, the bolt head 4 is a polygonal bolt head, and the beret sheet 1 and the connecting piece 2 are provided with polygonal grooves 13 which are used for limiting the rotation of the bolt head 4, so that the auxiliary fixing effect is achieved.

The working principle is as follows: the Bailey sheets 1 are connected through the connecting piece 2, when the Bailey sheets are connected, the Bailey sheets are screwed and fixed through the bolts and the screwing nuts 3, after the bolts and the screwing nuts 3 are screwed and fixed, the limiting sleeve 8 is sleeved on the bolt rod 5, when the limiting sleeve 8 moves along the bolt rod 5, the locking rod 10 moves along the sliding groove 9, the end face, far away from the compression spring 11, of the locking rod 10 is an inclined face, the locking rod 10 is inserted into the locking hole 7 under the action of the compression spring 11, and therefore the limiting sleeve 8 can limit the screwing nuts 3 to move towards the direction far away from the bolt heads 4, and the fixing effect is achieved.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention, and particularly, various features shown in the various embodiments may be combined in any combination as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. The utility model provides a special joint of bailey bridge, is including being used for bailey piece (1) of the bailey bridge of group building and connecting piece (2) of connecting each bailey piece (1), the both ends of bailey piece (1) are equipped with female interface (101) and male interface (102) that use with connecting piece (2) cooperation, connecting piece (2) are including first connecting block (21) that are used for connecting the female interface (101) of bailey piece (1), still including second connecting block (22) that are used for connecting the male interface (102) of bailey piece (1), first connecting block (21) and second connecting block (22) formula structure as an organic whole, first connecting block (21) all pass through bolted connection with female interface (101) and second connecting block (22) and male interface (102), and the rethread screws up nut (3) fixedly, its characterized in that: the bolt comprises a bolt head (4) and a bolt rod (5), the bolt head (4) and the bolt rod (5) are of an integrated structure, the bolt rod (5) penetrates through the connecting piece (2) and the Berea sheet (1) in a sliding mode, the tightening nut (3) is in threaded connection with the bolt rod (5), limiting grooves (6) are symmetrically arranged on the appearance of the bolt rod (5), a plurality of locking holes (7) are arranged at equal intervals of end faces where the limiting grooves (6) are close to each other, a limiting sleeve (8) is sleeved on the bolt rod (5) and on one side, far away from the bolt head (4), of the tightening nut (3), a sliding groove (9) is symmetrically arranged on the inner surface of the limiting sleeve (8), a locking rod (10) matched with the locking holes (7) in a sliding connection mode is arranged in the sliding groove (9), and a compression spring (11) is connected between the end face, far away from the bolt rod (5), of the locking rod (10) and the sliding groove (9), the end face of the locking rod (10) far away from the compression spring (11) is an inclined face.

2. The joint special for the Bailey bridge as claimed in claim 1, wherein: the locking rod (10) is a rectangular locking rod, and the sliding groove (9) is a rectangular sliding groove.

3. The joint special for the Bailey bridge as claimed in claim 1, wherein: the end face, far away from the bolt rod (5), of the locking rod (10) is fixedly connected with an adjusting rod (12), and the adjusting rod (12) penetrates through the side wall of the limiting sleeve (8) in a sliding mode.

4. The joint special for the Bailey bridge as claimed in claim 1, wherein: and the end surface of the limiting sleeve (8) close to the screwing nut (3) is provided with anti-skid grains.

5. The joint special for the Bailey bridge as claimed in claim 1, wherein: the bolt head (4) is a polygonal bolt head, and polygonal grooves (13) for limiting the rotation of the bolt head (4) are formed in the Bailey pieces (1) and the connecting piece (2).