阅读说明：本技术 一种新型无/局部槽道直连管片预埋锚件 (Novel non/local channel direct-connected segment pre-buried anchor ) 是由 于国军 刘浪 姜世平 于雪茹 郭世购 于 2021-08-24 设计创作，主要内容包括：本发明公开了一种新型无/局部槽道直连管片预埋锚件,包括预埋锚件、变截面件、定位螺栓、模具、密封圈、脱模剂、防松套环、螺杆、斜撑槽道、T型螺栓和螺母。所述预埋锚件内设置有变截面件,所述预埋锚件横向方向上开设通孔,截面为T字形结构；斜槽槽道中间高两端低,两端位置上开设有孔。本发明无需安装槽道及T型螺栓,在使用时在预埋锚件上安装防松套环和高强螺杆即可直接连接固定接触网,节省了材料成本；预埋锚件上开设横向通孔,提高了抗拔能力,可适当减少预埋锚件的埋置深度以提高管片强度。(The invention discloses a novel non/local channel direct-connected segment pre-buried anchor, which comprises a pre-buried anchor, a variable cross-section piece, a positioning bolt, a mold, a sealing ring, a release agent, a locking lantern ring, a screw rod, an inclined strut channel, a T-shaped bolt and a nut. A cross-section-variable piece is arranged in the pre-buried anchor piece, a through hole is formed in the pre-buried anchor piece in the transverse direction, and the cross section is of a T-shaped structure; the middle of the chute channel is high, the two ends of the chute channel are low, and holes are arranged at the two ends of the chute channel. According to the invention, a channel and a T-shaped bolt are not required to be installed, and when the device is used, the anti-loosening lantern ring and the high-strength screw are installed on the pre-buried anchor, so that the device can be directly connected and fixed with a contact net, and the material cost is saved; the transverse through holes are formed in the pre-buried anchors, so that the uplift resistance is improved, and the burying depth of the pre-buried anchors can be properly reduced to improve the strength of the segment.)

1. The utility model provides a novel pre-buried anchor of channel directly connecting section of jurisdiction, includes pre-buried anchor (1), be provided with in pre-buried anchor (1) and become cross-section spare (2), its characterized in that, set up through-hole (13) in pre-buried anchor (1) the transverse direction.

2. The novel pre-buried anchor of the channel direct-connecting segment as claimed in claim 1, wherein the lower end of the variable cross-section piece (2) is in threaded connection with a positioning bolt (3), and the positioning bolt (3) is used for positioning and supporting the mold (4).

3. The novel channel-direct-connecting segment pre-buried anchor piece as claimed in claim 1, wherein the variable cross-section piece (2) is in threaded connection with the pre-buried anchor piece (1); the variable cross-section part (2) is a variable cross-section plastic part.

4. The novel channel direct-connected segment pre-buried anchor piece as claimed in claim 1, wherein a sealing ring (5) is arranged between the top of the variable cross-section piece (2) and the pre-buried anchor piece (1); and the outer side wall of the variable cross-section piece (2) is coated with a release agent (6).

5. The novel channel direct-connected segment pre-buried anchor piece as claimed in claim 1, wherein when in use, the anti-loosening sleeve ring (7) is used for replacing the variable cross-section piece (2), a screw (8) is arranged in the anti-loosening sleeve ring (7), one end of the screw (8) protruding out of the anti-loosening sleeve ring (7) is connected with the pre-buried anchor piece (1), and the other end of the screw (8) protruding out of the anti-loosening sleeve ring (7) extends out of the concrete (12).

6. The novel channel-direct-connecting segment pre-buried anchor piece as claimed in claim 5, wherein the number of the pre-buried anchor pieces (1) is two, and two inclined groove channels (9) are arranged on the two screw rods (8); the chute channel (9) is used for supporting the connecting piece to connect and fix the connecting net.

7. The novel channel direct-connected segment pre-buried anchor piece as claimed in claim 6, wherein the chute channel (9) is high in the middle and low in the two ends, holes are formed in the two ends, and a screw (8) penetrates through the holes to position and install the chute channel (9); a through groove (14) is formed in the middle high position of the chute channel (9); and a connecting piece is arranged in the through groove (14), and the connecting piece can slide left and right in the through groove (14).

8. The novel channel-direct segment pre-buried anchor of claim 7, wherein the connector is a T-bolt (10).

9. The novel channel-direct-connecting segment pre-buried anchor as claimed in claim 1, wherein the cross section of the pre-buried anchor (1) is of a T-shaped structure.

10. The use method of the novel pre-buried anchor of the channel direct-connected segment as claimed in any one of claims 1 to 9, is characterized by comprising the following steps: pouring a pre-buried anchor (1) with a variable cross-section piece (2) screwed inside into concrete (12); when the pre-buried anchor (1) is used, the variable cross-section piece (2) is taken out and the anti-loosening sleeve ring (7) is placed in, the top thread of the anti-loosening sleeve ring (7) is eccentrically connected with the lower-layer internal thread at the bottom of the pre-buried anchor rod (1), the screw (8) is sequentially connected with the internal thread of the anti-loosening sleeve ring (7) and the upper-layer internal thread at the bottom of the pre-buried anchor (1), and then the anti-loosening sleeve ring (7) is rotated by a wrench to be completely screwed with the pre-buried anchor (1), so that the aim of preventing loosening of the screw (8) is fulfilled; if the installation position needs to be adjusted, an inclined strut channel (9) is installed between the two screw rods (8), the screw rods (8) penetrate through two side holes of the inclined strut channel (9) and then are fixed by nuts (11), T-shaped bolts (10) are arranged in through grooves (14) in the inclined strut channel (9), and the nuts (11) are installed after the T-shaped bolts (10) are rotated for 90 degrees to fixedly connect with a net.

Technical Field

The invention relates to the technical field of fixed installation in urban rail transit railway contact network tunnels, in particular to a novel non/local channel direct-connected segment pre-buried anchor.

Background

In recent years, urban rail transit railway construction in China is rapidly developed, and the contact net fixing technology is widely applied to various projects. The traditional channel adopts a post-anchor bolt method to fix the contact net in the tunnel, but the operation procedure of the fixing mode is complex, the construction quality is difficult to control, the pipe is easily damaged greatly, the surrounding environment is polluted, and the physical and mental health of constructors is influenced. The existing embedded channel has the problems that the embedded process is complex, the combination of the channel and the duct piece is poor, the water seepage phenomenon at the joint is serious, the integral anti-corrosion technology of the channel is not closed, the channel cannot be replaced in the later period, the service life of the channel and the duct piece cannot be the same, the price is higher and the like. The external channel overcomes part of defects of the embedded channel, but still needs to be installed with a large number of channels as fixed T-shaped bolt connecting pieces, and parts of the external channel also need components such as hanging rings, so that the material cost is improved.

The high-strength aluminum alloy embedded channel assembly and the embedded channel forming process disclosed by the Chinese patent application No. 201811025494.3 are characterized in that the high-strength aluminum alloy embedded channel assembly and the embedded channel forming process are formed by embedding a C-shaped groove and an I-shaped anchor rod welded on the back face of the C-shaped groove bottom, and high-strength aluminum alloy materials with low density are used, so that the strength and the load capacity of the embedded channel are improved, the tooth slippage resistance is improved, but the mode needs to be embedded on a shield segment in a full-ring mode, and the cost of the whole embedded part is higher. The positioner who is used for the embedding slot way that china patent application number 201920828172.6 disclosed realizes the location installation of embedding slot way through setting up U type spare, has avoided stock and reinforcing bar direct weld to fix, has guaranteed the atress performance of channel, but the cost of embedded part has been increased in the setting of U type spare. The 'novel replaceable external channel structure' disclosed by the Chinese patent application No. CN201921888361.9 adopts a mode of combining a stainless steel channel and an external channel, and has the advantages of corrosion resistance and low price of a common carbon steel channel of the stainless steel channel which are respectively outstanding, but the stainless steel channel with a single anchor rod is pre-embedded, the mileage of a subway tunnel is too long, and although the cost is reduced to some extent compared with the common pre-embedded channel, the total cost is higher. The 'external channel device of shield tunnel' disclosed in chinese patent application No. CN201920045620.5, through setting up link and arc channel, utilize connecting bolt fixed link, install T type bolt after the arc channel is gone into to the cover in the link, need not to reform transform existing section of jurisdiction mould, nevertheless need install link and arc channel for the cost is higher.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a novel non/local channel direct-connected segment pre-buried anchor, which overcomes the defects of higher cost and insufficient strength of the shield segment of the current contact net connecting component; the transverse through holes are formed in the pre-buried anchors, so that the uplift resistance is improved, and the burying depth of the pre-buried anchors can be properly reduced to improve the strength of the segment.

The present invention achieves the above-described object by the following technical means.

A novel channel direct-connected segment pre-buried anchor comprises a pre-buried anchor, wherein a variable cross-section piece is arranged in the pre-buried anchor, and a through hole is formed in the pre-buried anchor in the transverse direction.

Furthermore, the lower end of the variable cross-section part is in threaded connection with a positioning bolt, and the positioning bolt is used for positioning and supporting the die.

Further, the variable cross-section piece is in threaded connection with the pre-buried anchor; the variable cross-section piece is a variable cross-section plastic piece.

Further, a sealing ring is arranged between the top of the variable cross-section piece and the pre-buried anchor; and the outer side wall of the variable cross-section part is coated with a release agent.

Further, during the use, locking lantern ring is used for replacing and becomes section spare, and is provided with the screw rod in the locking lantern ring, and the screw rod protrusion is connected with pre-buried anchor in the one end of locking lantern ring, and protrusion extends the concrete in the other end of locking lantern ring.

Furthermore, the number of the pre-buried anchor pieces is two, and chute channels are arranged on the two screw rods; the chute channel is used for supporting the connecting piece to connect and support the connecting net.

Furthermore, the middle of the chute channel is high, the two ends of the chute channel are low, holes are formed in the positions of the two ends of the chute channel, and a screw penetrates through the holes to position and install the chute channel; a through groove is formed in the middle high position of the chute channel; the connecting piece is arranged in the through groove and can slide left and right in the through groove.

Further, the connecting piece is a T-shaped bolt.

Furthermore, the cross section of the pre-buried anchor is of a T-shaped structure.

The use method of the pre-buried anchor of the novel channel direct-connected segment comprises the following steps: pouring the pre-buried anchor with the variable cross-section piece screwed inside into concrete; when the pre-buried anchor is used, the variable cross-section piece is taken out and the anti-loosening sleeve ring is placed in, the top thread of the anti-loosening sleeve ring is eccentrically connected with the lower-layer internal thread at the bottom of the pre-buried anchor rod, and after the screw is sequentially connected with the internal thread of the anti-loosening sleeve ring and the upper-layer internal thread at the bottom of the pre-buried anchor rod, the anti-loosening sleeve ring is rotated by a wrench to be completely screwed with the pre-buried anchor rod, so that the aim of preventing loosening of the screw is fulfilled; if the installation position needs to be adjusted, an inclined strut channel is arranged between the two screw rods, the screw rods penetrate through the two side holes of the inclined strut channel and then are fixed by nuts, T-shaped bolts are arranged in through grooves in the inclined strut channel, and the nuts are installed to fix the connecting net after the T-shaped bolts are rotated for 90 degrees.

Compared with the prior art, the invention has the following advantages:

1. aiming at the defect that the existing pre-buried channel is high in cost, the pre-buried anchor is fixed by the variable-section plastic part, and after concrete curing is completed, the anti-loosening lantern ring and the screw are installed only when the concrete curing device is used, so that the material cost is saved.

2. According to the invention, no channel or T-shaped bolt is required to be installed, and the anti-loosening lantern ring and the high-strength screw rod are installed on the pre-buried anchor piece during use, so that the contact net can be directly connected and fixed, and the material cost is saved.

3. When the mounted position is between two pre-buried anchors, through the installation bracing channel, seted up logical groove on the bracing channel, thereby T type bolt can slide in logical groove and realize that the position is adjustable, has with low costs, antiskid, the high advantage of stability.

3. Aiming at the defect of insufficient strength of the existing shield segment, the invention is provided with the pre-buried anchor with the transverse through hole, so that the contact area with concrete is increased, the uplift resistance is improved, the embedding depth of the pre-buried anchor can be reduced, and the strength of the shield segment is improved.

4. Aiming at the defect that the connecting component of the existing contact net is easy to loosen, the connecting component is provided with the anti-loosening sleeve ring and the pre-buried anchor, and the convex thread on the top of the anti-loosening sleeve ring is eccentric with the inner thread on the lower layer of the pre-buried anchor, so that the connecting component has the advantages of difficulty in loosening, convenience in installation and high stability.

5. The pre-buried anchor section shape is T style of calligraphy structure, can increase the area of contact of pre-buried anchor and concrete thereby improves resistance to plucking ability.

6. A rubber sealing element is arranged between the pre-buried anchor and the variable cross-section piece, the purpose of the rubber sealing element is to prevent concrete or other substances from entering, the bonding force between the anti-loosening lantern ring and the screw and the pre-buried anchor is improved, and the variable cross-section piece is coated with a release agent to facilitate the release of the variable cross-section piece.

Drawings

FIG. 1 is a schematic structural view at a positioning and mounting stage;

FIG. 2 is a schematic structural view of the installation and fixation scheme at the stage of use;

FIG. 3 is a schematic structural view of a second installation and fixation scheme in a use stage;

FIG. 4 is a schematic view of a brace channel;

FIG. 5 is a schematic view of a pre-embedded anchor;

FIG. 6 is a cross-sectional view of a pre-embedded anchor;

fig. 7 is a cross-sectional view of the check collar.

Reference numerals:

1-pre-burying an anchor; 2-a variable cross-section piece; 3-positioning the bolt; 4-molding; 5-sealing ring; 6-a mold release agent; 7-a locking collar; 8-screw rod; 9-a diagonal brace channel; 10-T bolt; 11-a nut; 12-concrete; 13-a through hole; 14-through groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

A novel channel direct-connected segment pre-buried anchor comprises a pre-buried anchor 1, wherein a variable cross-section piece 2 is arranged in the pre-buried anchor 1, and a through hole 13 is formed in the pre-buried anchor 1 in the transverse direction; the cross section of the pre-buried anchor 1 is of a T-shaped structure. The defects that the overall cost of the connecting assembly in the existing tunnel is high and the strength of the shield segment is insufficient are overcome.

The lower end of the variable cross-section piece 2 is in threaded connection with a positioning bolt 3, and the positioning bolt 3 is used for positioning and supporting a mould 4; the variable cross-section piece 2 is in threaded connection with the pre-buried anchor piece 1; the variable cross-section part 2 is a variable cross-section plastic part; a sealing ring 5 is arranged between the top of the variable cross-section piece 2 and the pre-buried anchor 1; the outer side wall of the variable cross-section part 2 is coated with a release agent 6.

During the use, locking lantern ring 7 is used for replacing becomes section piece 2, and is provided with screw rod 8 in the locking lantern ring 7, and screw rod 8 protrusion is connected with pre-buried anchor 1 in the one end of locking lantern ring 7, and protrusion extends concrete 12 in the other end of locking lantern ring 7, can be connected with the contact net.

In another embodiment, two pre-buried anchors 1 are provided, and two inclined groove channels 9 are arranged on the two screw rods 8; the chute channel 9 is used for supporting a connecting piece to connect and fix a connecting net; the middle of the chute channel 9 is high, the two ends of the chute channel are low, holes are formed in the positions of the two ends of the chute channel, and the chute channel 9 is positioned and installed by the screw rod 8 penetrating the holes; a through groove 14 is formed in the middle high position of the chute channel 9; the connecting piece is arranged in the through groove 14 and can slide left and right in the through groove 14; the connecting piece is T-shaped bolt 10 and can be connected with a contact net.

The use method of the pre-buried anchor of the novel channel direct-connected segment comprises the following steps: pouring the pre-buried anchor 1 with the variable cross-section part 2 screwed inside into the concrete 12; when the pre-buried anchor 1 is used, the variable cross-section piece 2 is taken out and the anti-loosening sleeve ring 7 is placed in, the top thread of the anti-loosening sleeve ring 7 is eccentrically connected with the lower-layer internal thread at the bottom of the pre-buried anchor rod 1, the screw 8 is sequentially connected with the internal thread of the anti-loosening sleeve ring 7 and the upper-layer internal thread at the bottom of the pre-buried anchor 1, then the anti-loosening sleeve ring 7 is rotated by a wrench to be completely screwed with the pre-buried anchor 1, and the purpose of preventing loosening of the screw 8 is achieved; if the installation position needs to be adjusted, an inclined strut channel 9 is installed between the two screw rods 8, the screw rods 8 penetrate through two side holes of the inclined strut channel 9 and then are fixed by nuts 11, T-shaped bolts 10 are arranged in through grooves 14 in the inclined strut channel 9, and the nuts 11 are installed after the T-shaped bolts are rotated for 90 degrees to fixedly connect the net.

The invention discloses a novel non/local channel direct-connected segment pre-buried anchor, which comprises a pre-buried anchor 1, a variable cross-section plastic piece, a positioning bolt 3, a mold 4, a sealing ring 5, a release agent 6, a locking lantern ring 7, a screw 8, an inclined strut channel 9, a T-shaped bolt 10 and a nut 11, wherein the variable cross-section plastic piece is arranged on the pre-buried anchor; firstly, by arranging the pre-buried anchor 1 provided with the transverse through hole 13 and the variable-section plastic part, the variable-section plastic part is taken out only when in use, then the anti-loosening lantern ring 7 is installed to connect the pre-buried anchor 1, and the contact net can be directly fixed after the anti-loosening lantern ring 7 is rotated after the screw 8 is screwed in, so that the cost for installing the fixing component is reduced; secondly, through setting up the pre-buried anchor 1 that is opened horizontal through-hole 13, when concreting 12, increased the area of contact of pre-buried anchor 1 with concrete 12, improved resistance to plucking, can suitably reduce the embedded degree of depth of pre-buried anchor 1, improve the holistic intensity of shield segment. The sealing ring 5 is arranged to be fixed on the external thread on the upper layer of the top of the variable cross-section plastic part to prevent cement mortar from permeating into the threaded connection part; the release agent 6 component is a release material such as water-based, pure oil-based, emulsion-based, etc., and uniformly covers the outer side of the large cross section of the variable cross-section material 2.

The specific using process is as follows: when the pre-buried anchor 1 is used, the variable cross-section plastic part 2 is taken out through a hexagonal wrench and put into the anti-loosening sleeve ring 7, the convex threads on the top of the anti-loosening sleeve ring 7 are eccentrically connected with the lower-layer internal threads at the bottom of the pre-buried anchor rod 1 by the wrench and are not completely screwed, after the screwing screw 8 is sequentially connected with the internal threads of the anti-loosening sleeve ring 7 and the upper-layer internal threads at the bottom of the pre-buried anchor rod 1, the anti-loosening sleeve ring 7 is rotated by the wrench and is completely screwed with the pre-buried anchor rod 1, and the anti-loosening purpose of the screw 8 is achieved. If the installation position needs to be adjusted, an inclined strut channel 9 is installed between the two screw rods 8, two sides of the inclined strut channel 9 are fixed by nuts 11 after penetrating through the high-strength screw rods 8, T-shaped bolts 10 can be placed at the bottom of the inclined strut channel 9, and the nuts 11 are installed after rotating for 90 degrees to fix a contact net.

The installation process is as follows: installing rubber seal with the outer screw thread in 2 tops of variable cross section working of plastics, the outer screw thread in 1 bottoms upper strata of pre-buried anchor, top lower floor's external screw thread and the corresponding connection of 1 bottoms lower floor's internal thread in pre-buried anchor of variable cross section working of plastics top, reuse positioning bolt 3 to fix variable cross section working of plastics 2 on mould 4, take out positioning bolt 3 after 12 curing of concrete are accomplished can.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.