CN215718814U

CN215718814U - Tunnel construction inverted arch low side wall joint stubble reinforcing bar fixing device

Info

Publication number: CN215718814U
Application number: CN202121966594.3U
Authority: CN
Inventors: 张长国
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-02-01
Anticipated expiration: 2031-08-20

Abstract

The utility model discloses a fixing device for a short-side wall joint steel bar of an inverted arch in tunnel construction, which comprises a supporting seat, wherein a vertical bar is arranged on the supporting seat, a first opening is uniformly arranged on one side of the vertical bar along the vertical direction, a sleeve cover is sleeved on the vertical bar, a second opening is arranged on the sleeve cover, quick-release rods are arranged in the first opening and the second opening, a supporting plate is connected to one side of the sleeve cover, an inserting ring is arranged on the supporting plate, and two ends of the inserting ring are provided with side protrusions which are mutually attached. The insert ring is moved transversely until the distance between the insert ring and the set distance of the transverse steel bars is the same, the nuts are locked and screwed on the two half studs and are tightly pressed on the lantern ring, so that the fitting state of the two half studs is stabilized, the transverse position of the insert ring and the fitting state of the insert ring are stabilized, a certain number of insert rings can be selectively installed during the period, the requirement of fixing the height and the transverse position of the transverse steel bars with different numbers is met, and the flexibility is higher.

Description

Tunnel construction inverted arch low side wall joint stubble reinforcing bar fixing device

Technical Field

The utility model belongs to the technical field of tunnel construction, and particularly relates to a fixing device for a joint reinforcing steel bar of an inverted arch short side wall in tunnel construction.

Background

In the short side wall work progress in tunnel, require horizontal pre-buried reinforcing bar to keep horizontal straight, and highly unified, thereby can pour the back at the wall segmentation, the reinforcing bar can have good enhancement effect to the concrete, it is fixed to adopt reinforcing bar fixing device to support the reinforcing bar that traverses at present more, current reinforcing bar fixing device, the main part has installation base and support frame to connect to constitute, can wear the double-screw bolt that short side wall side form top set up on the installation base, at last with nut locking, thereby make reinforcing bar fixing device rigidity, the horizontal even welding of support frame has the spacing ring, can wear the reinforcing bar in the spacing ring, thereby can carry out effective highly fixed with a plurality of reinforcing bars that traverse, thereby the segmentation pouring in-process, avoid the crooked whereabouts of reinforcing bar atress, the weak point of existence is: although the transverse reinforcing steel bars need to keep the same height, due to pre-embedding factors, the distance between adjacent transverse reinforcing steel bars is not necessarily kept constant, the pre-embedding heights of the end parts of the transverse reinforcing steel bars in different construction sections are different, and due to the fact that the height of the supporting frame is fixed, the height of the supporting frame and the distance of the limiting ring of the reinforcing steel bar fixing device need to be designed according to actual conditions before construction, and the supporting frame is manufactured, so that the installation flexibility is not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fixing device for a joint reinforcing steel bar of an inverted arch short side wall in tunnel construction, which solves the problem that the operation flexibility for fixing the height and the transverse position of a transverse reinforcing steel bar in the prior art is not high.

In order to achieve the purpose, the utility model provides the following technical scheme: tunnel construction invert short limit wall seam connects stubble reinforcing bar fixing device, including a supporting seat, be provided with the upright strip on the supporting seat, one side of upright strip is followed vertical evenly to be equipped with first opening, the cover is equipped with the upper cover of upright strip, be equipped with the second opening on the upper cover, be provided with the quick detach pole in first opening and the second opening, one side of upper cover is connected with the backup pad, be provided with in the backup pad and insert the ring, the both ends of inserting the ring are equipped with protruding and the protruding laminating each other in limit, be equipped with the spout in the backup pad, the upside position of spout is equipped with the wearing hole, be connected with half double-screw bolt and half double-screw bolt laminating each other in the protruding spout that inserts in the limit and half double-screw bolt wears out the wearing hole, and the cover is equipped with the lantern ring and locks through the nut on two half double-screw bolts of laminating.

Preferably, the supporting seat is provided with a connecting pipe, the bottom of the vertical bar is connected with a rotary column, a connecting shaft is arranged at the center of the bottom of the rotary column, a bearing and an inner ring of the bearing are inserted into the connecting pipe, and the connecting pipe is connected with a bolt in a threaded manner.

Preferably, the first opening and the second opening are both square openings.

Preferably, the bottom of backup pad is connected with down branch, the one end of branch is connected with the sliding sleeve and the sliding sleeve cover is established at the vertical bar down, and the sliding sleeve is square cover.

Preferably, the edge protrusion is a square block.

Compared with the prior art, the utility model has the beneficial effects that:

in the using process of the utility model, the sleeve cover is moved up and down to drive the supporting plate to move up and down until the height of the insert ring meets the requirement, the quick-release rod penetrates through the first opening and the second opening, and the pressure rod of the quick-release rod is pressed down to stabilize the position of the quick-release rod, the quick-release rod is inserted into the first opening and the second opening, the limiting sleeve cover moves up and down on the vertical bar, the inserting ring moves transversely until the distance of the inserting ring is the same as the set distance of the transverse reinforcing steel bars, the nut is locked, the nut is screwed on the two half studs, when the two half studs are tightly pressed on the lantern ring, the joint state of the two half studs is stabilized, the transverse position of the insert ring and the joint state of the insert ring are also stabilized, during this period, the optional installation of a certain amount inserts the ring, satisfies to carry out height and transverse position to the reinforcing bar of different quantities of traversals and fixes, and the flexibility is higher, has solved the problem that the operation flexibility is not high to the reinforcing bar height of traversals and transverse position.

According to the utility model, the sliding sleeve is slidably sleeved on the vertical bar, so that the sleeve cover can be limited from transversely separating from the vertical bar, and the stability of the joint of the support plate and the sleeve cover is stronger through the support of the lower support rod.

According to the utility model, the bolts are unscrewed, then the vertical bars are rotated, and the bearing is used for rotating and bearing the rotary columns, so that the vertical bars are stably rotated, and when the bolts are locked, the rotary columns are limited to rotate in the connecting pipes, so that the transverse arrangement direction of a row of inserting rings is changed, and the requirement of supporting transverse reinforcing steel bars under different transverse bending conditions is met.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view in partial cutaway of FIG. 1;

FIG. 3 is a schematic top view of FIG. 1;

FIG. 4 is an enlarged view of a portion a of FIG. 2;

FIG. 5 is an enlarged view of the structure at b of FIG. 2;

fig. 6 is an enlarged schematic view of the structure at c of fig. 2.

In the figure: the quick-release type steel plate support comprises a support seat 1, a connecting pipe 2, a rotary column 3, a connecting shaft 4, a bearing 5, a bolt 6, a vertical bar 7, a first opening 8, a sleeve cover 9, a second opening 10, a quick-release rod 11, a support plate 12, a lower support rod 13, a sliding sleeve 14, an inserting ring 15, a flange 16, a sliding groove 17, a penetrating opening 18, a half stud 19, a lantern ring 20 and a nut 21.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1, 2, 3 and 4, an embodiment of the utility model provides a device for fixing a stubbled reinforcement for a tunnel construction inverted arch short side wall seam, comprising a support seat 1, wherein mounting holes are formed in the left side and the right side of the support seat 1, a stud arranged at the top of a short side wall side mold can be inserted into the mounting holes, finally the stud is locked by a nut, the support seat 1 can be stably installed at the top of the short side wall side mold, a connecting pipe 2 is welded at the center of the upper end of the support seat 1, a rotary column 3 is welded at the bottom of a vertical bar 7, the rotary column 3 is of a cylindrical structure, the rotary column 3 is slidably inserted into the connecting pipe 2, a connecting shaft 4 is arranged at the center of the bottom of the rotary column 3, the rotary column 3 and the connecting shaft 4 are integrated into a casting piece, a bearing 5 is inserted into the connecting pipe 2 in an interference manner, the connecting shaft 4 is inserted into an inner ring of the bearing 5 in an interference manner, the rotary column 3 is rotatably received by the bearing 5, so that the vertical bar 7 is stably rotated, a bolt 6 is screwed into a threaded hole formed in the right side of the connecting pipe 2, when the bolt 6 is locked, the rotation of the rotary column 3 in the connecting pipe 2 is limited.

Referring to fig. 1, 2, 3 and 5, the right side of the vertical bar 7 is uniformly provided with a first opening 8 along the vertical direction, the first opening 8 and the second opening 10 are both square openings, a sleeve cover 9 is slidably sleeved on the vertical bar 7, the sleeve cover 9 is a U-shaped plate, the front and rear positions of the sleeve cover 9 are provided with second openings 10, quick release rods 11 are arranged in the first opening 8 and the second opening 10, when the pressure rods of the quick release rods 11 are pressed, the position of the quick release rods 11 is stabilized, and since the quick release rods 11 are inserted into the first opening 8 and the second opening 10, the sleeve cover 9 is limited to move up and down on the vertical bar 7, a support plate 12 is welded on the left side of the sleeve cover 9, a lower support rod 13 is welded on the left side of the bottom of the support plate 12, a sliding sleeve 14 is welded on the right end of the lower support rod 13, the sliding sleeve 14 is slidably sleeved on the vertical bar 7, the sliding sleeve 14 is a square sleeve, the sliding sleeve is sleeved on the vertical bar 17, the sleeve 9 can be limited to transversely separate from the vertical bar 7, and pass through the support of the lower support rod 13, so that the connection between the support plate 12 and the cap 9 is more stable.

Referring to fig. 1, 2, 3 and 6, the two ends of the insert ring 15 are provided with the edge protrusions 16, the edge protrusions 16 are attached to each other, the insert ring 15 is of a circular ring structure with an opening at the upper end, the edge protrusions 16 are square blocks, the insert ring 15 and the edge protrusions 16 are fusion-cast integral parts, when the edge protrusions 16 are attached to each other, the opening of the insert ring 15 is also attached to each other, the size of the insert ring 15 is such that after the opening of the insert ring 15 is attached, the inner wall of the insert ring 15 is in sliding contact with transverse steel bars, the support plate 12 is internally provided with the sliding groove 17, the sliding groove 17 is a square strip-shaped groove, the upper side of the sliding groove 17 is provided with the through opening 18, the top of the edge protrusion 16 is connected with the half stud 19, when the edge protrusions 16 are attached to each other, the two half studs 19 are attached to form a complete stud, the edge protrusion 16 is slidably inserted into the sliding groove 17 and the half stud 19 slidably penetrates through the through opening 18, the front-back width of the sliding groove 17 is greater than 1 cm of the front-back width of the through opening 18, therefore, the edge protrusions 16 cannot move upwards, the two attached half studs 19 are slidably sleeved with the lantern rings 20 and locked through the nuts 21, after the lantern rings 20 are sleeved into the two half studs 19, the attaching state of the two half studs 19 can be preliminarily stabilized, and when the nuts 21 are screwed on the two half studs 19 and tightly pressed on the lantern rings 20, the attaching state of the two half studs 19 is stabilized, and meanwhile, the transverse position of the insert ring 15 and the attaching state of the insert ring 15 are also stabilized.

The working principle of the embodiment is as follows: the method comprises the steps of penetrating studs arranged at the top of a short side wall side form into mounting holes at two sides of a support seat 1, locking the studs through nuts, stably mounting the support seat 1 at the top of the short side wall side form, mounting a plurality of reinforcing steel bar fixing devices at three meters serving as standards at the top of the short side wall side form at equal intervals according to the mounting mode, dismounting a quick-release rod 11, vertically moving a sleeve cover 9 to drive a support plate 12 to vertically move until the height of an insert ring 15 meets the requirement, penetrating the quick-release rod 11 into a first opening 8 and a second opening 10, pressing down a pressure rod of the quick-release rod 11 to stabilize the position of the quick-release rod 11, limiting the sleeve cover 9 to vertically move on a vertical bar 7 as the quick-release rod 11 is inserted into the first opening 8 and the second opening 10, screwing out nuts 21 from two half studs 19 in a fitting state, pulling out the half studs 19 from penetrating holes 18 and sliding chutes 17, and inserting transverse reinforcing steel bars into the insert ring 15, then, the half studs 19 are inserted into the through holes 18 again, the lantern ring 20 is sleeved on the two half studs 19, the attaching state of the two half studs 19 can be stabilized preliminarily, nuts 21 are screwed into the two half studs 19, the insert ring 15 is moved transversely until the distance between the insert ring 15 and the set distance of the transverse steel bars is the same, the nuts 21 are locked, the nuts 21 are screwed on the two half studs 19 and are tightly pressed on the lantern ring 20, the attaching state of the two half studs 19 is stabilized, the transverse position of the insert ring 15 and the attaching state of the insert ring 15 are also stabilized, a certain number of insert rings 15 can be mounted selectively during the period, the requirements for fixing the height and the transverse position of the transverse steel bars with different numbers are met, and the flexibility is higher.

The sliding sleeve 14 is slidably sleeved on the vertical bar 17, so that the sleeve cover 9 can be limited from transversely separating from the vertical bar 7, and the connection position of the support plate 12 and the sleeve cover 9 is enabled to have stronger stability through the support of the lower support rod 13.

When the position of the side mold part of the short-edge wall has small-amplitude bending, the transverse steel bars also need to be bent properly and transversely, so that the transverse arrangement direction of the row of inserting rings 15 needs to be changed, the bolts 6 are unscrewed firstly, then the upright bars 7 are rotated, the rotary columns 3 are connected through the rotation of the bearings 5, the upright bars 7 are rotated stably, and when the bolts 6 are locked, the rotary columns 3 are limited to rotate in the connecting pipes 2, so that the transverse arrangement direction of the row of inserting rings 15 is changed, and the requirement for supporting the transverse steel bars under different transverse bending conditions is met.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. Tunnel construction invert short side wall seam connects stubble reinforcing bar fixing device, its characterized in that: comprises a supporting seat (1), wherein a vertical bar (7) is arranged on the supporting seat (1), a first opening (8) is vertically and uniformly arranged on one side of the vertical bar (7), a sleeve cover (9) is sleeved on the vertical bar (7), a second opening (10) is arranged on the sleeve cover (9), quick-release rods (11) are arranged in the first opening (8) and the second opening (10), a supporting plate (12) is connected to one side of the sleeve cover (9), an inserting ring (15) is arranged on the supporting plate (12), edge protrusions (16) and edge protrusions (16) are arranged at two ends of the inserting ring (15) and are mutually attached, a sliding groove (17) is arranged in the supporting plate (12), a penetrating opening (18) is arranged at the upper side position of the sliding groove (17), a half stud (19) and a half stud (19) are mutually attached on the edge protrusions (16), the edge protrusions (16) are inserted into the sliding groove (17) and the half studs (19) penetrate through the penetrating opening (18), the two half studs (19) which are attached are sleeved with a lantern ring (20) and locked by a nut (21).

2. The device for fixing the stubbled steel bars for the tunnel construction inverted arch short side wall joint according to claim 1, characterized in that: be provided with connecting pipe (2) on supporting seat (1), the bottom of vertical bar (7) is connected with revolves post (3), the bottom central point of revolving post (3) puts and is provided with connecting axle (4), be provided with bearing (5) and connecting axle (4) in connecting pipe (2) and insert the inner circle of bearing (5), the spiro union has bolt (6) on connecting pipe (2).

3. The device for fixing the stubbled steel bars for the tunnel construction inverted arch short side wall joint according to claim 1, characterized in that: the first opening (8) and the second opening (10) are both square openings.

4. The device for fixing the stubbled steel bars for the tunnel construction inverted arch short side wall joint according to claim 1, characterized in that: the bottom of backup pad (12) is connected with down branch (13), the one end of branch (13) is connected with sliding sleeve (14) and sliding sleeve (14) cover and establishes in founding strip (7) down, sliding sleeve (14) are square cover.

5. The device for fixing the stubbled steel bars for the tunnel construction inverted arch short side wall joint according to claim 1, characterized in that: the edge protrusions (16) are square blocks.