CN111042572A

CN111042572A - Fixing device for bar planting

Info

Publication number: CN111042572A
Application number: CN202010094952.XA
Authority: CN
Inventors: 王志勇; 金辉; 姜凤华
Original assignee: Taizhou University
Current assignee: Taizhou University
Priority date: 2020-02-17
Filing date: 2020-02-17
Publication date: 2020-04-21

Abstract

The invention discloses a fixing device for planting bars, which comprises an outer cylinder, an inner cylinder and a middle cylinder, wherein the upper ends of the outer cylinder and the inner cylinder are respectively sealed by an upper cover. The inner tube is inside the urceolus, well section of thick bamboo is between urceolus and inner tube, be provided with the trompil on urceolus and the inner tube wall, urceolus and inner tube all set up the trompil respectively, be provided with joint portion in the trompil, joint portion upper portion is fixed in on the trompil upper end wall, the same highly protruding portion that is provided with the round on well section of thick bamboo wall, the protruding portion is inwards and outwards all outstanding along well section of thick bamboo wall, all set up on the height that well section of thick bamboo wall is different with the urceolus, the protruding portion that the trompil corresponds on the inner tube, the top. The fixing device combines the mechanical force and the gripping force generated by chemical glue, increases the binding force of the steel bar in the bar planting process, can shorten the reinforcing time, and can adapt to the vibrating environment.

Description

Fixing device for bar planting

Technical Field

The invention relates to the field of fixing embedded bars in concrete, in particular to an embedded bar fixing device which is used in a vibration environment and needs to accelerate construction progress.

Background

The 'bar planting' technology is a simple and effective connection and anchoring technology aiming at concrete structure, can be implanted with common steel bars and can also be implanted with bolt type anchor bars, and is widely applied to the reinforcement and reconstruction engineering of the existing buildings, such as: the remedy of missing reinforcing steel bars or the deviation of the reinforcing steel bars from the designed position in the construction process is realized, the reinforcing steel bars for reinforcing the cross section are increased by the components, the span of the upper structure is expanded, the beam and the column are lengthened through jacking, the storey-adding column of a house and the embedded steel bars of a shear wall are additionally arranged on a high-rise building, and the like. The steel bar planting is usually performed by a chemical method, is a connection technology for post-anchoring of steel bars by utilizing the holding force action of a structural adhesive locking key, and is generally used in the field of bridge reinforcement due to good vibration resistance. The strong bar-planting adhesive can be completely cured at normal temperature for a long time, and can enter the next procedure after complete curing, so that the construction time is delayed, and meanwhile, the force of the adhesive on the steel bar is limited.

Disclosure of Invention

In view of the prior art, the invention provides a fixing device for a vibration environment, which is required to accelerate the construction progress and improve the fixing force of a planted bar.

In order to solve the technical problem, the fixing device for the bar planting comprises an outer barrel, an inner barrel and a middle barrel, wherein the top ends of the outer barrel and the inner barrel are respectively sealed by an upper cover, the bottom ends of the outer barrel and the inner barrel are respectively provided with an opening, and the top end and the bottom end of the middle barrel are respectively provided with an opening. The inner cylinder is positioned in the outer cylinder, the middle cylinder is positioned between the outer cylinder and the inner cylinder, the outer cylinder and the inner cylinder are provided with at least two openings at the same height on the wall, namely, at the same layer, the outer cylinder and the inner cylinder are provided with at least one layer of openings, clamping parts are arranged in the openings and are L-shaped, the clamping parts are vertical rods and transverse rods, the vertical rods and the transverse rods are connected and form included angles, the upper ends of the vertical rods are elastic and are fixed on the upper end wall of the openings, the free ends of the transverse rods on the clamping parts of the outer cylinder face outwards, the free ends of the transverse rods on the clamping parts of the inner cylinder face inwards, the free ends of the transverse rods are positioned between the outer cylinder and the inner cylinder when not extruded, the middle cylinder wall is provided with protrusions corresponding to the openings on the same layer, the protrusions are inwards and outwards arranged along the same height on a circle of the middle cylinder wall on the same layer, the outer wall of the protrusions form an arc, the outer side wall of the lower part of the middle cylinder is provided with an external thread and a corresponding screw cap.

The sealing cover between the outer cylinder and the inner cylinder is provided with a through hole.

The sealing cover at the top end of the inner cylinder is provided with a through hole.

The bottom end of the outer cylinder is outwards provided with a flange plate vertical to the outer cylinder.

Above-mentioned well section of thick bamboo bottom is provided with the thickening flange board outward, and thickening flange board frame is regular hexagon.

Compared with the prior art, the invention has the beneficial effects that: 1. according to the invention, the inner wall of the extrusion hole of the clamping part and the outer wall of the steel bar are adopted, the steel bar is clamped in the hole of the concrete by the mechanical force of the fixing device, the binding force borne by the steel bar is greatly increased, and meanwhile, the existence of the mechanical binding force enables the next process to be carried out without waiting for complete solidification of viscose in the bar planting process; 2. inside fixing device, between urceolus outer wall and the concrete hole and all have the viscose between inner tube inner wall and the reinforcing bar outer wall to be full of, through chemical glue latch key grip effect fastening reinforcing bar and fixing device and concrete hole in, it is less to make the reinforcing bar receive the influence of fixed cohesion receiving the vibration like this.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural diagram of the invention after bar planting.

Fig. 3 is a sectional view taken along line a-a in fig. 1.

Detailed Description

The invention will now be further described in the following with reference to the accompanying drawings, in which reference is made to figures 1 to 3, in which embodiments of the invention are shown.

A fixing device for bar planting is characterized by comprising an outer cylinder 110, an inner cylinder 120 and a middle cylinder 130, wherein the top ends of the outer cylinder 110 and the inner cylinder 120 are both closed by an upper cover 140, the bottom ends of the outer cylinder 110 and the inner cylinder 120 are both open, the top end and the bottom end of the middle cylinder 130 are both open, the inner cylinder 120 is positioned in the outer cylinder 110, the middle cylinder 130 is positioned between the outer cylinder 110 and the inner cylinder 120, the outer cylinder 110 and the inner cylinder 120 are both provided with at least two

openings

1111 and 1112 at the same height on the wall, at least one layer of

openings

1111 and 1112 is arranged on the outer cylinder 110 and the inner cylinder 120, the

openings

1111 and 1112 are internally provided with

clamping parts

1121 and 1122, the

clamping parts

1121 and 1122 are L-shaped, the

clamping parts

1121 and 1122 are divided into

vertical rods

1131 and 1132 and

cross rods

1141 and 1142, the

vertical rods

1131 and 1132 are connected with the

cross rods

1141 and 1142 to form an included angle, the upper ends of the

vertical rods

1131 and 1132 are elastic and fixed on the upper end walls of, the free end of the upper cross rod 1142 of the clamping part 1122 of the inner cylinder 120 faces inwards, the free ends of the

cross rods

1141 and 1142 are located between the outer cylinder 110 and the inner cylinder 120 when not extruded, the wall of the middle cylinder 130 is provided with a protrusion 131 which is located at the same layer as the

openings

1111 and 1112, the protrusion 131 is provided with a protrusion block inwards and outwards along the same height, namely, the same layer of the wall of the middle cylinder 130, the outer wall of the protrusion block is arc-shaped in the vertical direction, the protrusion 131 is located above the

clamping parts

1121 and 1122 in the

openings

1111 and 1112 of the outer cylinder 110 and the inner cylinder 120 which are at the same layer as the protrusion 131, and the outer side wall of the lower part of the middle cylinder 130 is provided with an external thread and a corresponding nut.

A through hole 141 is formed in the cap 140 between the outer cylinder 110 and the inner cylinder 120.

The cap 140 at the top end of the inner cylinder 120 is provided with a through hole 142.

The bottom end of the outer cylinder 110 is outwardly provided with a flange plate 116 perpendicular thereto.

The bottom end of the middle tube 130 is outwardly provided with a thickened flange plate 132, and the outer frame of the thickened flange plate 132 is in a regular hexagon shape.

The following describes in detail the use and principles of the present invention.

In the place where the bar is needed to be planted, after the hole 160 is punched, the inside of the hole 160 is cleaned, and then the glue is injected into the hole 160. With injecting appropriate amount of viscose in fixing device's inner tube 120, the reinforcing bar upper portion that needs the bar planting is provided with screw thread or draw-in groove, and the effect is better.

The upper end of the fixture is inserted into the hole 160 and the nut 150 is tightened so that the nut 150 abuts against the flange plate 116 and prevents the middle tube 130 from moving downward. During the process of the fixing device moving into the hole 160, part of the adhesive in the hole 160 enters the space between the outer cylinder 110 and the inner cylinder 120 through the through hole 141 and the opening 1111 by pressing, another part of the adhesive is pressed into the inner cylinder 120 through the through hole 142 or is pressed out of the fixing device along the outer wall of the outer cylinder 110, and most of the adhesive is left in the fixing device until the flange plate 116 is only against the concrete surface. The reinforcement bars 170 are inserted into the inner cylinder 120, and the adhesive in the inner cylinder 120 is pressed by the reinforcement bars 170 through the openings 1112 and into the space between the outer cylinder 110 and the inner cylinder 120. Until the reinforcing bars 170 are inserted into the upper end of the fixing device, the space between the outer wall of the outer cylinder 110 and the inner wall of the hole 160 is filled with adhesive, the space between the outer wall of the reinforcing bars 170 and the inner wall of the inner cylinder 120 is filled with adhesive, and the space between the outer cylinder 110 and the inner cylinder 120 is also filled with adhesive.

The thickened flange plate 132 at the lower end of the middle tube 130 is fixed by a tool so that it cannot rotate, and the middle tube 130 is vertically moved out of the hole 160 by rotating the nut 150. In the process that the middle barrel 130 moves outwards, the protrusion on the protrusion 131 simultaneously presses the

vertical rods

1131, 1132 of the

clamping portions

1121, 1122, the cross rod 1141 of the clamping portion 1121 on the outer barrel 110 is outwardly pressed by the vertical rod 1131 and inserted into the wall of the hole 160, and the cross rod 1142 of the clamping portion 1122 on the inner barrel 120 is inwardly pressed by the vertical rod 1132 and tightly presses the threads or the clamping grooves around the outer wall of the steel bar 170. After the screw cap 150 is screwed, the adhesive is not solidified, but the implanted steel bar 170 is better fixed in the fixing device by the mechanical clamping force of the upper clamping portion 1122 of the inner cylinder 120, and the fixing device is well fixed in the hole 160 by the clamping force of the upper clamping portion 1121 of the outer cylinder to the inside of the hole 160. And then the next process can be carried out without waiting for the adhesive to completely solidify. After a sufficient period of time, the adhesive is completely solidified, the fixing device is simultaneously subjected to the gripping force of the adhesive and the clamping force of the clamping portion 1121 on the outer cylinder 110, and the outer wall of the steel bar 170 is subjected to the gripping force of the adhesive in the inner cylinder 120 and the clamping force of the clamping portion 1122 on the inner cylinder 120. The fixing device can simultaneously bear the gripping force of mechanical force and viscose, so that the fixing device can be used for fixing the embedded steel bars required by reinforcement in a vibration environment.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A fixing device for bar planting is characterized by comprising an outer barrel, an inner barrel and a middle barrel, wherein the top ends of the outer barrel and the inner barrel are sealed by an upper cover, the bottom ends of the outer barrel and the inner barrel are both open, the top end and the bottom end of the middle barrel are both open, the inner barrel is positioned in the outer barrel, the middle barrel is positioned between the outer barrel and the inner barrel, the outer barrel and the inner barrel are respectively provided with at least two openings at the same height on the wall, namely the same layer, at least one layer of openings are arranged on the outer barrel and the inner barrel, clamping parts are arranged in the openings, the clamping parts are L-shaped, the clamping parts are vertical rods and transverse rods, the vertical rods and the transverse rods are connected to form included angles, the upper ends of the vertical rods are elastic and are fixed on the upper end wall of the openings, the free ends of the transverse rods on the clamping parts face outwards, the free ends of the transverse rods on the clamping parts of the inner barrel, the protrusions are provided with protruding blocks inwards and outwards along a circle of the middle cylinder wall at the same height, namely the same layer, the outer walls of the protruding blocks are arc-shaped in the vertical direction, the protrusions are positioned above the protrusions in the openings on the outer cylinder and the inner cylinder at the same layer corresponding to the protrusions, and external threads and corresponding screw caps are arranged outside the side wall of the lower part of the middle cylinder.

2. The fixing device for planting bars as claimed in claim 1, wherein the sealing cover between the outer cylinder and the inner cylinder is provided with through holes.

3. The fixing device for planting bars as claimed in claim 1, wherein the cover at the top end of the inner cylinder is provided with through holes.

4. The fixing device for planting bars as claimed in claim 1, wherein the bottom end of the outer cylinder is provided outwards with a flange plate perpendicular thereto.

5. The fixing device for planting bars as claimed in claim 1, wherein the bottom end of the middle cylinder is provided with a thickened flange plate outwards, and the outer frame of the thickened flange plate is in a regular hexagon shape.