A positioning device and positioning method for a pier column reinforcement protective layer

Abstract

The application discloses a positioning device and a positioning method for a reinforcing layer of a pier column, and the positioning device comprises a first rotating rod, a second rotating rod, an extension rod, a pin shaft and a steel nail; the first rotating rod, the second rotating rod and the extension rod are all perpendicular to the axis of the pin shaft, and one end of each of the first rotating rod, the second rotating rod and the extension rod is hinged to the pin shaft; the other end of each of the first rotating rod and the second rotating rod is connected with an upper clamping piece and a lower clamping piece for clamping stirrups respectively; the other end of the extension rod is connected with a middle clamping piece for clamping a main reinforcement; the positioning method clamps two adjacent stirrups by the symmetrical first rotating rod and the second rotating rod respectively, and then clamps the main reinforcement between the two stirrups by the extension rod, so that the extension rod forms a reference object perpendicular to the outer surface of the pier column reinforcement cage, and the steel nail is welded with the main reinforcement with reference to the axis of the extension rod, so that the steel nail can be ensured to be perpendicular to the outer surface of the pier column reinforcement cage.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pier columns, in particular to a positioning device for a pier column reinforcement protection layer.

[0002] The present application also relates to a positioning method for a pier column reinforcement protection layer. BACKGROUND

[0003] Whether the actual tensile stress of the pier column reinforcement can be evenly stressed mainly depends on whether the position of the reinforcement in the structure is correct. If the reinforcement is too close to or far from the edge of the structural member, it will directly lead to the decrease or increase of the gripping force, which seriously affects the service life of the structure.

[0004] In the prior art, a plurality of screw rods are vertically welded on the reinforcement cage around the pier body, the screw rods protrude from the protection layer, a fixing plate is sleeved on the screw rod, and a nut is threadedly connected on the screw rod. The distance between the outer end surface of the screw rod and the end surface of the nut around the pier can be measured by a ruler to detect whether the thickness of the protection layer around the pier is uniform.

[0005] The existing problems in the prior art are that: when measuring the distance between the protruding end surface of the screw rod and the nut, the ruler used by the construction personnel cannot guarantee that the ruler is in a vertical state, which will lead to inaccurate detection data, and when the screw rod is not vertically welded with the reinforcement cage, the obtained data will also have errors, and the existing screw rod measurement data for the thickness control of the pier protection layer is not accurate. SUMMARY

[0006] The purpose of the present application is to provide a positioning device and positioning method for a pier column reinforcement protection layer to solve the technical problem that the screw rod is difficult to be vertically welded with the reinforcement cage.

[0007] To solve the above technical problems, the present application specifically provides the following technical solutions:

[0008] A positioning device for a pier column reinforcement protection layer, comprising: a first rotating rod, a second rotating rod, an extension rod, a pin shaft and a steel nail; wherein the first rotating rod and the second rotating rod are symmetrical, the first rotating rod, the second rotating rod and the extension rod are perpendicular to the axis of the pin shaft, and one end of the first rotating rod, the second rotating rod and the extension rod is hinged to the pin shaft; the other end of the first rotating rod and the second rotating rod is connected with an upper clamping piece and a lower clamping piece for clamping stirrups, respectively; the other end of the extension rod is connected with a middle clamping piece for clamping main reinforcement; and the steel nail is used for welding on the side wall of the main reinforcement along the direction parallel to the axis of the extension rod.

[0009] Further, the upper bite piece comprises a sheet and a clamping groove, the sheet is parallel to the axis of the telescopic rod and perpendicular to the axis of the pin shaft, the clamping groove is above the sheet and has a V shape; the shape of the lower bite piece is symmetric to the shape of the upper bite piece.

[0010] Further, the first rotating rod and the second rotating rod are connected by a torsion spring, the torsion spring is sleeved on the pin shaft, and the torsion spring makes the first rotating rod and the second rotating rod have a mutual far-apart rotating trend.

[0011] Further, the telescopic rod comprises a first sliding rod and a second sliding rod, the first sliding rod is fixedly connected with the middle bite piece, the second sliding rod is rotationally connected with the pin shaft, the first sliding rod and the second sliding rod are slidingly connected, and the first sliding rod and the second sliding rod are connected by an elastic element, the elastic element makes the first sliding rod and the second sliding rod have a mutual far-apart sliding trend.

[0012] Further, the first rotating rod has two ends and is connected with two ends of the pin shaft respectively, and the upper bite piece and the stirrup are in linear contact when the upper bite piece is engaged with the stirrup; the second rotating rod has two ends and is connected with two ends of the pin shaft respectively, and the lower bite piece and the stirrup are in linear contact when the lower bite piece is engaged with the stirrup.

[0013] Further, the two first rotating rods are fixedly connected by a first connecting rod, and the two second rotating rods are fixedly connected by a second connecting rod.

[0014] Further, the middle bite piece has two ends and is connected with one end of the telescopic rod, the two middle bite pieces are centrally symmetric relative to the axis of the telescopic rod, and the two middle bite pieces are located on the upper and lower sides of the axis of the pin shaft respectively, and the middle bite piece and the main reinforcement are in linear contact when the middle bite piece is engaged with the main reinforcement.

[0015] Further, the positioning device further comprises a steel nail positioner fixedly connected with the middle bite piece, a triangular column located on one side of the middle bite piece is formed on the steel nail positioner, the triangular column is a long strip with a triangular cross section, the length direction of the triangular column is parallel to the axis of the telescopic rod, one side wall of the triangular column is close to the main reinforcement, and the included angle between the side wall and the axis of the main reinforcement is an acute angle, and a scale is formed on the side wall and is distributed along the length direction of the side wall.

[0016] The positioning method for the reinforcement protection layer of the pier column comprises the following steps: erecting the reinforcement cage of the pier column on the pile cap, embedding bullet-shaped steel nails in the reinforcement of the pier column in a "Z" shape alternately with an upper and lower interval of 0.5 m and a left and right interval of 0.25 m inwardly on both sides according to the size of the pier column, vertically welding the steel nails on the reinforcement of the pier column, polishing and erecting the formwork, and measuring the protection layer again and adjusting the formwork to meet the design requirements.

[0017] Further, the step of vertically welding the steel nails on the reinforcement of the pier column specifically comprises the following steps: S1, rotating the first rotating rod to engage the upper engaging member with one stirrup and rotating the second rotating rod to engage the lower engaging member with another stirrup below the upper engaging member; S2, adjusting the length of the telescopic rod so that the middle engaging member engages the main reinforcement between the two stirrups; S3, adjusting the first rotating rod and the second rotating rod so that the included angle between the first rotating rod and the telescopic rod is equal to the included angle between the second rotating rod and the telescopic rod; S4, taking a steel nail, which is a cylinder, and making the outer circumferential surface of the steel nail fit the main reinforcement and the telescopic rod; and S5, adjusting the protruding length of the steel nail to meet the thickness requirement of the protection layer, and then welding the steel nail and the main reinforcement into one body.

[0018] Compared with the prior art, the positioning method for the reinforcement protection layer of the pier column has the following beneficial effects:

[0019] The positioning device and the positioning method for the reinforcement protection layer of the pier column are provided, the positioning device engages two adjacent stirrups through the symmetrical first rotating rod and the second rotating rod respectively, and then engages the main reinforcement between the two stirrups through the telescopic rod, so that the telescopic rod forms a reference object perpendicular to the outer surface of the reinforcement cage of the pier column, and the steel nail is welded with the main reinforcement along the axis of the telescopic rod, which can ensure that the steel nail is perpendicular to the outer surface of the reinforcement cage of the pier column. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained from the provided drawings without creative labor.

[0021] Figure 1 It is a schematic diagram of one working condition of an embodiment of the positioning method of the present application;

[0022] Figure 2 It is a schematic diagram of another working condition of an embodiment of the positioning method of the present application;

[0023] Figure 3 It is a front view of the application scene of an embodiment of the positioning device of the present application;

[0024] Figure 4 A perspective view of an application scenario of an embodiment of the positioning device of the present application;

[0025] Figure 5 A partial enlarged view of A of Figure 4 ;

[0026] Figure 6 A perspective view of an embodiment of the positioning device of the present application Figure 1 ;

[0027] Figure 7 A perspective view of an embodiment of the positioning device of the present application Figure 2 ;

[0028] Figure 8 A top view of an embodiment of the positioning device of the present application;

[0029] Figure 9 A sectional view of B-B direction of Figure 8 ;

[0030] The reference numerals in the drawings represent the following respectively:

[0031] 1 - pier reinforcement cage; 11 - main reinforcement; 12 - stirrup; 13 - steel nail; 2 - first rotating rod; 21 - upper engaging piece; 211 - piece body; 212 - clamping groove; 213 - anti-skid pattern; 22 - first connecting rod; 3 - second rotating rod; 31 - lower engaging piece; 32 - second connecting rod; 4 - telescopic rod; 41 - middle engaging piece; 42 - first sliding rod; 43 - second sliding rod; 5 - pin shaft; 51 - torsion spring; 6 - steel nail positioner; 61 - triangular column; 611 - side wall; 612 - scale. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] As shown in Figure 1 and 2 , the present embodiment controls the thickness of the protective layer by the "Z" shaped steel nail control method.

[0034] After the pier reinforcement cage is processed and transported to the site after passing the acceptance, it is erected on the pile cap, and when the pile cap is poured and ready for construction of the pier, the bullet-shaped steel nails 13 are pre-buried on the pier reinforcement according to the upper and lower spacing of 0.5 m, the left and right spacing according to the pier size, each side is inwardly recessed by 0.25 m, and are arranged alternately in "Z" shape.

[0035] After all the bullet-shaped steel nails 13 are welded on the pier steel reinforcement, the formwork is polished, the formwork is erected, and the protective layer is measured again to adjust to the requirements of the design drawing or the building code.

[0036] However, it is difficult to position the pier steel reinforcement cage 1 so that the steel nails 13 are perpendicular to the outer circumferential surface of the pier steel reinforcement cage 1, which includes the main reinforcement 11 and the stirrup 12, the main reinforcement 11 being evenly distributed on a circle or a rectangle around the center line of the pier steel reinforcement cage 1, and the stirrup 12 being formed along a spiral line around the main reinforcement 11.

[0037] When the top of the pier steel reinforcement cage 1 is formed into an outwardly expanding shape, the stirrups 12 at the bottom of the pier steel reinforcement cage 1 are relatively dense, and the stirrups 12 at the top of the pier steel reinforcement cage 1 are relatively sparse, at the same time, the main reinforcements 11 at the middle and lower part of the pier steel reinforcement cage 1 are parallel to each other, and the main reinforcements 11 at the upper part of the pier steel reinforcement cage 1 extend radially.

[0038] Therefore, the stirrups 12 are not parallel to the ground, the distance between the adjacent two stirrups 12 is changing at any time, and the included angle between the adjacent two main reinforcements 11 is also changing at any time.

[0039] The above reasons make it extremely difficult for workers to find the angle perpendicular to the outer circumferential surface of the pier steel reinforcement cage 1.

[0040] To solve the above technical problems, the embodiment provides a positioning device for a pier steel reinforcement protective layer, which refers to Figures 3-5 .

[0041] Embodiment 1:

[0042] The positioning device comprises a first rotating rod 2, a second rotating rod 3, an extension rod 4 and a pin shaft 5;

[0043] Among them,

[0044] The first rotating rod 2 and the second rotating rod 3 are symmetrical, the first rotating rod 2, the second rotating rod 3 and the extension rod 4 are all perpendicular to the axis of the pin shaft 5, and one end of the first rotating rod 2, the second rotating rod 3 and the extension rod 4 is hinged to the pin shaft 5;

[0045] The other end of the first rotating rod 2 and the second rotating rod 3 is respectively connected with an upper clamping piece 21 and a lower clamping piece 31 for clamping the stirrup 12;

[0046] The other end of the extension rod 4 is connected with a middle clamping piece 41 for clamping the main reinforcement 11.

[0047] The positioning steps are as follows:

[0048] S1, rotate the first rotating rod 2 to engage the upper engaging member 21 with one stirrup 12, and rotate the second rotating rod 3 to engage the lower engaging member 31 with another stirrup 12 below the upper engaging member 21;

[0049] S2, adjust the length of the telescopic rod 4 so that the middle engaging member 41 engages the main reinforcement 11 between the two stirrups 12;

[0050] S3, adjust the first rotating rod 2 and the second rotating rod 3 so that the included angle between the first rotating rod 2 and the telescopic rod 4 is equal to the included angle between the second rotating rod 3 and the telescopic rod 4, at this time the telescopic rod 4 is perpendicular to the plane formed by the two adjacent stirrups 12 and the main reinforcement 11 between them, whether it is a plane or a curved surface;

[0051] S4, take a steel nail 13, which is a cylinder, and make the outer surface of the steel nail 13 fit the main reinforcement 11 and the telescopic rod 4, at this time the steel nail 13 is perpendicular to the outer surface of the pier reinforcement cage 1;

[0052] S5, adjust the protruding length of the steel nail 13 to meet the thickness requirement of the protective layer, and then weld the steel nail 13 with the main reinforcement 11.

[0053] The following refers to Figures 6-9 .

[0054] Further:

[0055] The upper engaging member 21 includes a sheet body 211 and a clamping groove 212, the sheet body 211 is parallel to the axis of the telescopic rod 4 and perpendicular to the axis of the pin shaft 5, and the clamping groove 212 is located above the sheet body 211 and has a V-shaped shape;

[0056] The shape of the lower engaging member 31 is symmetrical to the shape of the upper engaging member 21.

[0057] The clamping groove 212 is used to clamp the bottom surface of the stirrup 12 from bottom to top, and the lower engaging member 31 is used to clamp the top surface of another stirrup 12 from top to bottom.

[0058] Further:

[0059] The surface of the clamping groove 212 is formed with anti-skid lines 213.

[0060] Further:

[0061] The first rotating rod 2 and the second rotating rod 3 are connected by a torsion spring 51, the torsion spring 51 is sleeved on the pin shaft 5, and the torsion spring 51 makes the first rotating rod 2 and the second rotating rod 3 have a rotating trend away from each other.

[0062] The user pinches the first rotating rod 2 and the second rotating rod 3, so that the distance between the upper clamping piece 21 and the lower clamping piece 31 is less than the spacing between the two stirrups 12, and then releases the first rotating rod 2 and the second rotating rod 3. Through the elastic force of the torsional spring 51, the upper clamping piece 21 and the lower clamping piece 31 can clamp the two stirrups 12 without the user continuing to operate.

[0063] Further:

[0064] The telescopic rod 4 includes a first sliding rod 42 and a second sliding rod 43, the first sliding rod 42 is fixedly connected with the middle clamping piece 41, the second sliding rod 43 is rotatably connected with the pin shaft 5, the first sliding rod 42 and the second sliding rod 43 are slidably connected, the first sliding rod 42 and the second sliding rod 43 are connected through an elastic member, and the elastic member causes the first sliding rod 42 and the second sliding rod 43 to have a mutual sliding trend away from each other.

[0065] The elastic member is not shown in the figure, and the elastic member is used to make the middle clamping piece 41 tightly fit the main reinforcement 11 without external force, so that the user can free up both hands to weld the steel nails 13.

[0066] Further, in embodiment 1, sometimes the positioning pier reinforcement cage 1 is cylindrical, not square, which causes the stirrup 12 to extend along a curve, and the upper clamping piece 21 is difficult to completely clamp the stirrup 12.

[0067] In order to solve the above problems, embodiment 2:

[0068] The first rotating rod 2 has two ends connected with the two ends of the pin shaft 5 respectively, and the upper clamping piece 21 and the stirrup 12 are in line contact when clamped;

[0069] The second rotating rod 3 has two ends connected with the two ends of the pin shaft 5 respectively, and the lower clamping piece 31 and the stirrup 12 are in line contact when clamped.

[0070] No matter whether the stirrup 12 extends along a straight line or a curve, by clamping the two stirrups 12 with the two upper clamping pieces 21 and the two lower clamping pieces 31 respectively, it can be ensured that the four points at which the two upper clamping pieces 21 and the two lower clamping pieces 31 clamp the stirrup 12 are all located on the outer circumferential surface of the pier reinforcement cage 1, thereby ensuring that the telescopic rod 4 is perpendicular to the plane formed by the two stirrups 12.

[0071] Further:

[0072] The two first rotating rods 2 are fixedly connected through the first connecting rod 22, and the two second rotating rods 3 are fixedly connected through the second connecting rod 32.

[0073] Further, in embodiment 1 or 2, at the connection between the upper part and the middle and lower part of the pier reinforcement cage 1, the pier reinforcement cage 1 extends along a curve, and the middle clamping piece 41 is difficult to completely clamp the main reinforcement 11.

[0074] To solve the above problems, embodiment 3:

[0075] The two middle engaging pieces 41 are centrally symmetric relative to the axis of the telescopic rod 4, and are located on the upper and lower sides of the axis of the pin shaft 5 respectively. When the middle engaging piece 41 engages with the main rib 11, the two are in linear contact.

[0076] No matter whether the main rib 11 extends along a straight line or a curve, by engaging the two middle engaging pieces 41 with the two different height positions on the main rib 11 respectively, the telescopic rod 4 can be ensured to be perpendicular to the main rib 11.

[0077] In embodiment 3, step S3 is unnecessary, as long as the two middle engaging pieces 41 engage with the main rib 11, the included angle between the first rotating rod 2 and the telescopic rod 4 is bound to be equal to the included angle between the second rotating rod 3 and the telescopic rod 4.

[0078] Further, in the above embodiments, when the diameter of the main rib 11 or the steel nail 13 changes, the outer peripheral surface of the steel nail 13 cannot necessarily be in contact with the main rib 11 and the telescopic rod 4 at the same time.

[0079] To solve the above problems, embodiment 4:

[0080] The positioning device further comprises a steel nail positioner 6;

[0081] The steel nail positioner 6 is fixedly connected with the middle engaging piece 41, and a triangular column 61 located on one side of the middle engaging piece 41 is formed on the steel nail positioner 6. The triangular column 61 is a long strip with a triangular cross section, the length direction of the triangular column 61 is parallel to the axis of the telescopic rod 4, one side wall 611 of the triangular column 61 is close to the main rib 11, and the included angle between the side wall 611 and the axis of the main rib 11 is an acute angle.

[0082] The outer wall of the main rib 11 and the side wall 611 form a V-shaped groove, and the steel nail 13 of any diameter can be placed in the V-shaped groove to be in contact with the main rib 11 of any diameter.

[0083] Further:

[0084] The side wall 611 is provided with a scale 612, and the scale 612 is distributed along the length direction of the side wall 611.

[0085] The scale 612 is used for the staff to visually measure the length of the steel nail 13 extending to the outside of the pier reinforcement cage 1, so as to control the thickness of the protective layer.

[0086] The above examples are only exemplary embodiments of the present application and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements are also considered as falling within the protection scope of the embodiments of the present application.

Claims

1. A positioning device for the reinforcement protection layer of a pier column, characterized in that, comprising: a first rotating rod, a second rotating rod, an extension rod, a pin shaft and a steel nail; wherein, the first rotating rod and the second rotating rod are symmetrical, the first rotating rod, the second rotating rod and the extension rod are all perpendicular to the axis of the pin shaft, and one end of the first rotating rod, the second rotating rod and the extension rod is hinged to the pin shaft; the other end of the first rotating rod and the second rotating rod is respectively connected with an upper clamping piece and a lower clamping piece for clamping stirrups; the other end of the extension rod is connected with a middle clamping piece for clamping main reinforcement; the steel nail is used for welding on the side wall of the main reinforcement along the direction parallel to the axis of the extension rod; the first rotating rod and the second rotating rod are connected by a torsion spring, the torsion spring is sleeved on the pin shaft, and the torsion spring makes the first rotating rod and the second rotating rod have a rotating trend away from each other; the positioning device further comprises a steel nail positioner fixedly connected with the middle clamping piece; a triangular column is formed on the steel nail positioner, which is located on one side of the middle clamping piece, the triangular column is a long strip with a triangular cross section, the length direction of the triangular column is parallel to the axis of the extension rod, one side wall of the triangular column is close to the main reinforcement, and the included angle between the side wall and the axis of the main reinforcement is an acute angle; a scale is formed on the side wall, and the scale is distributed along the length direction of the side wall. 2.The positioning device for the reinforcement protection layer of a pier column according to claim 1, characterized in that, the upper clamping piece comprises a sheet and a clamping groove, the sheet is parallel to the axis of the extension rod and perpendicular to the axis of the pin shaft, and the clamping groove is located above the sheet and has a V-shaped shape; the shape of the lower clamping piece is symmetrical with the shape of the upper clamping piece. 3.The positioning device for the reinforcement protection layer of a pier column according to claim 1, characterized in that, the extension rod comprises a first sliding rod and a second sliding rod, the first sliding rod is fixedly connected with the middle clamping piece, the second sliding rod is rotationally connected with the pin shaft, the first sliding rod and the second sliding rod are slidingly connected, the first sliding rod and the second sliding rod are connected by an elastic member, and the elastic member makes the first sliding rod and the second sliding rod have a sliding trend away from each other. 4.The positioning device for the reinforcement protection layer of a pier column according to any one of claims 1-3, characterized in that, the first rotating rod has two ends and is connected with the two ends of the pin shaft respectively, and the upper clamping piece and the stirrup are in line contact when they are clamped; the second rotating rod has two ends and is connected with the two ends of the pin shaft respectively, and the lower clamping piece and the stirrup are in line contact when they are clamped. 5.The positioning device for the reinforcement protection layer of a pier column according to claim 4, characterized in that, the two first rotating rods are fixedly connected by a first connecting rod, and the two second rotating rods are fixedly connected by a second connecting rod. 6.The positioning device for the reinforcement protection layer of a pier column according to any one of claims 1-3, characterized in that, The intermediate engaging pieces have two and are connected to one end of the telescopic rods, the two intermediate engaging pieces are centrally symmetrical relative to the axis of the telescopic rods, and the two intermediate engaging pieces are respectively located on the upper and lower sides of the axis of the pin shaft, and the intermediate engaging piece and the main reinforcement are in linear contact when engaged.

7. A positioning method for a pier column reinforcement protection layer, characterized in that, The positioning method uses the positioning device of any one of claims 1-6, and the positioning method comprises the following steps: The pier column reinforcement cage is erected on the pile cap, the bullet-shaped steel nails are pre-buried on the pier column reinforcement according to the upper and lower spacing of 0.5 m and the left and right spacing of 0.25 m inwardly on both sides according to the size of the pier column, and are alternately arranged in a "Z" shape; The steel nails are vertically welded on the pier column reinforcement, the formwork is polished and erected, and the protection layer is measured again to adjust the formwork to meet the design requirements.

8. The positioning method for a pier column reinforcement protection layer according to claim 7, characterized in that, The step of vertically welding the steel nails on the pier column reinforcement comprises the following steps: S1, rotating the first rotating rod to engage the upper engaging piece with one stirrup and rotating the second rotating rod to engage the lower engaging piece with another stirrup below the upper engaging piece; S2, adjusting the length of the telescopic rod so that the intermediate engaging piece engages the main reinforcement between the two stirrups; S3, adjusting the first rotating rod and the second rotating rod so that the included angle between the first rotating rod and the telescopic rod is equal to the included angle between the second rotating rod and the telescopic rod; S4, taking a steel nail, which is a cylinder, and making the outer peripheral surface of the steel nail fit the main reinforcement and the telescopic rod; S5, adjusting the protruding length of the steel nail to meet the thickness requirement of the protection layer, and then welding the steel nail and the main reinforcement into one body.

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