Concrete guardrail false joint cutting and positioning device

Abstract

The utility model relates to a concrete guardrail false seam cutting and positioning device which comprises a positioning frame, the positioning frame comprises a top plate, side plates are fixedly arranged on the two sides of the top plate respectively, the line type of the longitudinal section of the positioning frame is consistent with the line type of the cross section of a concrete guardrail, and false seam positioning notches are formed in the positioning frame in the transverse direction of the top plate and the vertical directions of the two side plates. The false seam positioning notches penetrate through the top plate and the side plates, the false seam positioning notches in the top plate are communicated with the false seam positioning notches in the two side plates, and a certain distance is formed between the lower ends of the false seam positioning notches in the two side plates and the bottom edges of the two side plates. When in use, the device is buckled on a concrete guardrail and can provide support for the false joint cutting machine, the cutting machine cuts along the false joint positioning notch, and the straightness and the cutting depth of the false joint can be ensured to be uniform.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge construction technical field relates to bridge concrete guardrail construction, concretely relates to a concrete guardrail false seam cutting positioning device. BACKGROUND

[0002] False seam, is to prevent large area concrete because thermal expansion and cold contraction lead to surface appear irregular crack, cut out certain depth of contraction joint on concrete surface according to certain rule, because it does not penetrate concrete body, therefore is called false seam. Bridge concrete guardrail length is longer, usually every certain interval along the guardrail transverse around concrete both sides and top cut a false seam on guardrail concrete.

[0003] At present, in the false seam cutting construction of guardrail, generally first draw false seam mark line on the guardrail, and the construction personnel hand the cutting equipment and cut along the mark line, but when operating, because the hand-held equipment is not easy to keep stable, it is easy to lead to false seam line type not straight, cutting seam depth uneven and other problems, influence guardrail appearance quality. SUMMARY

[0004] The utility model discloses a kind of concrete guardrail false seam cutting positioning devices for the above problems, guarantee the cutting quality of false seam.

[0005] The technical scheme of the utility model is as follows:

[0006] A kind of concrete guardrail false seam cutting positioning device, it is characterized by: including a positioning frame, the positioning frame includes top plate, one side plate is fixedly arranged in the two sides of top plate, the longitudinal section line type of positioning frame is identical with the cross section line type of concrete guardrail, false seam positioning slot is set on the top plate and the two side plates of positioning frame along top plate transversely and vertically, the false seam positioning slot is through top plate and side plate, and the false seam positioning slot on top plate is communicated with the false seam positioning slot on the two side plates, the lower end of false seam positioning slot on the two side plates is a certain interval from the bottom edge of the two side plates.

[0007] The utility model is buckled on concrete guardrail when using, can provide support for false seam cutting machine, guarantee cutting machine stable, cutting machine is cut along false seam positioning slot, can guarantee the straightness of false seam cutting and cutting depth uniform, improve construction quality;The utility model can slide on guardrail, facilitate construction site conversion, and construction efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is the longitudinal section structure of the utility model and the use state schematic view along the cross section direction of guardrail;

[0009] Figure 2 It is the side view structure of the utility model and the use state schematic view along the lateral direction of guardrail;

[0010] Figure 3 is a three-dimensional structure schematic view of the positioning frame of the utility model. DETAILED DESCRIPTION

[0011] As Figure 1 , Figure 2 , Figure 3 The utility model discloses a positioning frame 1, the positioning frame 1 includes a top plate 11, and one side plate 12 is fixedly arranged on both sides of the top plate 11 respectively, and the longitudinal section line type of the positioning frame is consistent with the cross section line type of the concrete guardrail, and the false joint positioning notches 13 are set up on the positioning frame along the top plate transversely and the two side plates vertically, the false joint positioning notches 13 pass through the top plate 11 and the side plate 12, and the false joint positioning notches on the top plate are communicated with the false joint positioning notches on the two side plates, and the lower end of the false joint positioning notches 13 on the two side plates is apart from the bottom edge of the two side plates 12 by a certain interval.

[0012] The utility model discloses in implementation, for being convenient for the positioning frame movement, can set up two pulleys 2 fixedly on the bottom surface of the top plate 11 of the positioning frame, and the rotation axis both ends of the pulley 2 are respectively towards two side plates.

[0013] As Figure 1 , Figure 2 The utility model discloses in implementation, for being convenient for the positioning frame movement, can set up two pulleys 2 fixedly on the bottom surface of the top plate 11 of the positioning frame, and the rotation axis both ends of the pulley 2 are respectively towards two side plates. When using, the positioning frame 1 is buckled on the concrete guardrail 3, and the pulley 2 at the bottom of the top plate of the positioning frame is supported on the top of the guardrail 3, and the two side plates of the positioning frame are respectively located on both sides of the guardrail 3, the false joint cutting line is previously drawn on the guardrail, the positioning frame 1 is pushed and moves along the guardrail 3 longitudinally, the false joint positioning notches are aligned with the false joint cutting line on the guardrail, the cutting machine is supported on the positioning frame by the hand of the construction personnel, the cutting wheel of the cutting machine is inserted into the false joint positioning notches 13, and the cutting machine is started to cut along the false joint positioning notches on the top plate and the two side plates, since the false joint positioning notches can limit the left and right shaking of the cutting machine, the false joint with fluent line can be cut on the concrete guardrail, and the false joint depth is uniform.

Claims

1. A concrete barrier false joint cutting positioning device, characterised in that: The positioning frame comprises a top plate, and one side plate is fixedly arranged on each side of the top plate, the longitudinal section line type of the positioning frame is consistent with the cross section line type of the concrete guardrail, false joint positioning notches are formed on the top plate in the transverse direction and on the two side plates in the vertical direction, the false joint positioning notches penetrate through the top plate and the side plates, the false joint positioning notches on the top plate are communicated with the false joint positioning notches on the two side plates, and the lower ends of the false joint positioning notches on the two side plates are spaced apart from the bottom edges of the two side plates.

2. The concrete barrier false joint cut positioning device of claim 1, wherein: Two pulleys are fixedly arranged on the bottom surface of the top plate of the positioning frame, and the rotation shafts of the pulleys are respectively directed towards the two side plates.

Images