CN207161471U - A kind of jointing between steel section of jurisdiction - Google Patents

Abstract

The utility model discloses a connection joint between steel pipe pieces, which comprises a pipe piece, the pipe piece is provided with a socket, the socket is penetrated with a fixed rod, and the upper end of the fixed rod is equidistantly arranged around a circle. There are a plurality of pressing pieces, bolts are arranged between the pressing pieces, one end of the bolts passes through the fixing rod, and tapered nuts are threaded on the bolts. The connection joint of the utility model can realize the connection even if the connection joint and the insertion hole are eccentric, and the operation of position alignment and bolt reinforcement is simple, so that the automatic assembly of the segments between the ring segments becomes easy and low-cost. The segment can be temporarily fixed by inserting the connecting joint into the socket. After the segment is stabilized after advancing the shield machine, it can be tightened and reinforced by pressing pieces or bolts, which is suitable for promotion.

Description

A connection joint between steel pipe pieces

technical field

The invention relates to the technical field of segment connection, in particular to a connection joint between steel segments.

Background technique

In the prior art, the connection between the rings of the steel segment mainly adopts the cooperation of bolts and nuts. The main method is to align the positions of the bolt holes between the ring pieces, insert the bolts into the bolt holes, and then use the nuts to fix the tightening force. When the steel segments are assembled by the automatic assembly machine, each ring piece It is not easy to align the position of the bolt holes between them. Moreover, each bolt hole must be provided with a bolt and a nut, and the nut must be tightened and reinforced after the bolt is inserted. The machine that needs to perform such a set of continuous actions will be very complicated, and as far as the automatic assembly machine itself is concerned, The price is also a problem. For this reason, we propose a connection joint between steel segments to solve the above problems.

Utility model content

The purpose of the present invention is to solve the shortcomings in the prior art, and propose a connection joint between steel segments. In order to achieve the above object, the present invention adopts the following technical solutions:

A connecting joint between steel segments, comprising a segment, the segment is provided with a socket, the socket is provided with a fixed rod, and the upper end of the fixed rod is provided with a plurality of pressing sheets at equal intervals , Bolts are arranged between the pressing sheets, one end of the bolts passes through the fixing rod, and a tapered nut is threaded on the bolts.

Preferably, the segment is composed of an upper joint surface and a lower joint surface, both of which are provided with insertion holes.

Preferably, the tapered nut is provided with anti-skid lines.

Preferably, the tapered nut is provided with an internal thread, and the bolt is provided with an external thread corresponding to the internal thread.

Preferably, the pressing sheet is made of corrosion-resistant material.

In the present invention, when the next ring segment is installed in front of the assembled steel segment, the connecting joint is installed on the new segment and positioned with the socket of the existing segment. Cooperate, as shown in Figure 3, the pressure piece starts to pass through the socket from its front end. At this time, the pressure piece is tapered due to its front end (conical upper end of the cone), so even if the front end position and the socket have different degrees Eccentricity occurs, and it can also be inserted into the jack, and with the assembly of the segment, the same position between the new segment and the old segment can also be automatically adjusted. gap, so even if the large diameter part in the middle is larger than the insertion hole, the tablet will shrink as the insertion process proceeds due to its own deformation, and after passing through the insertion hole, it will return to its original shape through elasticity, and at this time expand and return The part of the original shape is shown in Figure 4. The surface of the segment and the conical part at the lower end of the cone are in a state of mutual restraint, which plays a role in preventing the segment from loosening. In this state, as shown in Figure 5, use a conical pressure The piece pressing tool presses down the front ends of the plurality of pieces towards the direction of the piece to make the small pieces spread out. At the same time, in order to prevent the reaction force from the direction of the piece, as shown in Figure 6, after inserting the bolt in the fixed part, use The tapered nut is tightened to prevent loosening and strengthen the fit. The connection joint of the present invention can realize the connection even if the connection joint and the insertion hole are eccentric, and the position alignment and bolt reinforcement are easy to operate, so that the segments between the ring segments can be assembled Automation becomes easy and low-cost. Just insert the connecting joint into the socket to realize the temporary fixation of the segment. After the segment is stabilized after advancing the shield machine, it can be fixed by pressing sheet or bolt, etc. It is suitable for promotion by tightening and strengthening.

Description of drawings

Fig. 1 is the structural representation of the connecting joint between a kind of steel segment that the present invention proposes;

Fig. 2 is the section view of the connection joint between the steel segments proposed by the present invention in the fixed state of the connection joint in the segment;

Fig. 3 is a state display section view of a connecting joint between steel segments proposed by the present invention when the connecting joint is inserted into the socket;

Fig. 4 is a state display diagram of a temporary fixation effect on the segment under the action of the connecting joint between the steel segments proposed by the present invention;

Fig. 5 is a cross-sectional view of a connection joint between steel segments proposed by the present invention when the connection joint is pressed down and dispersed;

Fig. 6 is a cross-sectional view of a connection joint between steel segments proposed by the present invention when the connection joint is tightened and reinforced with bolts and tapered nuts.

In the figure: 1 pressing piece, 2 upper bonding surface, 3 lower bonding surface, 4 bolt, 5 tapered nut, 6 fixing rod.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

Referring to Figure 1-6, a connection joint between steel segments, including segments, which play a load-bearing role, a socket is provided on the segment, and a fixed rod 6 is inserted through the socket, and the upper ends of the fixed rods 6 are equally spaced around. A plurality of pressing pieces 1 are provided to improve stability, and bolts 4 are arranged between the pressing pieces 1, and one end of the bolts 4 runs through the fixing rod 6, and a tapered nut 5 is threaded on the bolts 4 for auxiliary fixing.

In the present invention, the segment is composed of an upper joint surface 2 and a lower joint surface 3, and the upper joint surface 2 and the lower joint surface 3 are provided with sockets, and the tapered nut 5 is provided with anti-slip lines for anti-slip treatment. The nut 5 is provided with an internal thread, the bolt 4 is provided with an external thread corresponding to the internal thread, and the pressing piece 1 is made of a corrosion-resistant material to improve the service life.

In the present invention, when the next ring segment is installed in front of the assembled steel segment, the connecting joint is installed on the new segment and positioned with the socket of the existing segment. Cooperate, as shown in Figure 3, the pressure sheet 1 is passed through the socket from its front end. At this time, the pressure sheet 1 is tapered due to its front end (conical upper end of the cone), so even if the front end position is different from the socket A certain degree of eccentricity occurs, and it can also be inserted into the socket, and with the assembly of the segment, the same position between the new segment and the old segment can also be automatically adjusted. There is a gap between them, so even if the large diameter part in the middle is larger than the insertion hole, the pressing sheet 1 will shrink due to its own deformation during the insertion process, and return to its original shape through elasticity after passing through the insertion hole. At this time, the part that expands and returns to the original shape is shown in Figure 4. The surface of the segment and the tapered part at the lower end of the cone are in a state of mutual restraint, which plays a role in preventing the segment from loosening. In this state, as shown in Figure 5, use The conical pressing tool presses down the front ends of multiple pressing pieces 1 towards the direction of the segment, so that the small pieces are scattered. At the same time, in order to prevent the reaction force from the direction of the segment, as shown in Figure 6, insert bolts in the fixed part After 4, tighten with conical nut 5 to prevent loosening and strengthen fit.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solutions of the present invention and its Any equivalent replacement or change of the concept of the utility model shall fall within the protection scope of the present invention.

Claims (5)

1. a connecting joint between steel segments, comprising segment, is characterized in that, described segment is provided with jack, is provided with fixing bar (6) through in described jack, and described fixing bar (6) ) is provided with a plurality of pressing pieces (1) at equal intervals around the upper end, and bolts (4) are arranged between the pressing pieces (1), and one end of the bolts (4) runs through the fixing rod (6), and the bolts (4) The upper thread is connected with a tapered nut (5). 2. The connecting joint between a kind of steel segment according to claim 1, characterized in that, the segment is composed of an upper joint surface (2) and a lower joint surface (3), and the upper joint surface ( 2) and the lower joint surface (3) are provided with jacks. 3. A connection joint between steel segments according to claim 1, characterized in that, the tapered nut (5) is provided with anti-skid lines. 4. A connecting joint between steel segments according to claim 1, characterized in that, the tapered nut (5) is provided with an internal thread, and the bolt (4) is provided with an internal thread Corresponding external thread. 5. A connection joint between steel pipe pieces according to claim 1, characterized in that, the pressing piece (1) is made of corrosion-resistant material.