End partition plate positioning device suitable for prefabricated box girders with different girder lengths

Abstract

The utility model relates to an end baffle positioning device suitable for precast box girders with different girder lengths, which comprises a first positioning plate, a second positioning plate, an operating rod and a line drawing pen, the first positioning plate is pasted on the inner wall of one side of a box girder side mould in the width direction after being measured, the operating rod is horizontally arranged, and the second positioning plate is pasted on the inner wall of one side of the box girder side mould in the width direction. The operating rod comprises a first rod body, a second rod body and a middle rod body, the first rod body and the second rod body are arranged at the two ends of the middle rod body in a sliding mode, the first rod body is arranged close to the first positioning plate, a guide plate is arranged at the end, close to the first positioning plate, of the first rod body, and the guide plate is tightly attached to the peripheral wall of the first positioning plate; the second rod body is arranged close to the inner wall of the other side of the side mold in the width direction, and the line drawing pen is arranged at the end, away from the first rod body, of the second rod body. The application has the effect of simplifying the positioning operation of the end partition plate.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated box beams, in particular to an end partition plate positioning device which is adapted to prefabricated box beams with different beam lengths. Background Art

[0002] In highway bridge construction, prefabricated box girders are commonly used for erection. In order to enhance the overall rigidity, prefabricated box girders are connected with diaphragms. Diaphragms are usually used for prefabricated concrete box girders, and the diaphragms at the ends of the box girders are called end diaphragms.

[0003] During the construction of the end partitions, due to the wide range of variations in the length of the box girder, in order to adapt to box girders with different lengths, the staff used a measuring ruler and a marking pen to mark the position of the end partition on the inner wall of the outer mold of the box girder and pasted the positioning plate of the end partition. After the box girder is cast and formed, the box girder formwork and the positioning plate are removed. Under the action of the positioning plate, a positioning groove is formed on the outer wall of the box girder. Subsequently, the template of the end partition is supported at the positioning groove and the end partition is cast.

[0004] When end partitions are required on both sides of the box girder width direction, the staff needs to measure the designated positions on the inner wall of the side formwork on each side of the box girder width direction with a measuring ruler and mark them with a marker, which is a cumbersome operation. Utility Model Content

[0005] In order to simplify the positioning operation of the end partition, the present application provides an end partition positioning device that is adaptable to prefabricated box girders with different beam lengths.

[0006] The present application provides an end diaphragm positioning device adapted to prefabricated box girders of different beam lengths, which adopts the following technical solution:

[0007] A device for positioning an end partition of a prefabricated box girder that can adapt to different beam lengths comprises a first positioning plate, a second positioning plate, an operating rod, and a marking pen. The first positioning plate is pasted on the inner wall on one side of the width direction of the box girder side mold after measurement. The operating rod is arranged horizontally. The operating rod comprises a first rod body, a second rod body, and an intermediate rod body. The first rod body and the second rod body are slidably arranged at both ends of the intermediate rod body. The first rod body is arranged close to the first positioning plate. A guide plate is arranged at one end of the first rod body close to the first positioning plate. The guide plate is tightly attached to the outer peripheral wall of the first positioning plate. The second rod body is arranged close to the inner wall on the other side of the width direction of the side mold. The marking pen is arranged at one end of the second rod body away from the first rod body.

[0008] By adopting the above technical solution, when positioning the end partition, first measure the position of the first positioning plate with a measuring ruler and draw the position of the first positioning plate with a marking pen, then paste the first positioning plate on the inner wall of the side mold, and then use the operating rod. The staff holds the guide plate tightly against the first positioning plate with one hand, and holds the second rod body with the other hand to keep the pen tip of the marking pen in contact with the inner wall of the side mold, and moves the operating rod along the peripheral side wall of the first positioning plate. The first rod body and the second rod body are adaptively extended and retracted, that is, the position of the second positioning plate corresponding to the first positioning plate can be quickly drawn, and finally the second positioning plate can be pasted on the side mold drawing line, without the need to measure the position of the second positioning plate again, thereby simplifying the overall positioning operation of the end partition.

[0009] Preferably, an end surface of the first rod body close to the middle rod body is provided with a first sliding groove for the middle rod body to slide, and an end surface of the middle rod body close to the second rod body is provided with a second sliding groove for the second rod body to slide.

[0010] By adopting the above technical solution, the first rod body slides on the outer side of the middle rod body, and the second rod body slides on the inner side of the middle rod body, thereby reducing the interference between the first rod body and the second rod body and increasing the telescopic range of the operating rod.

[0011] Preferably, a first limit block is provided on the outer side wall of the middle rod body, the first limit block is provided on the two opposite side walls of the middle rod body, and a first limit groove for sliding the first limit block is provided on the inner wall of the first slide groove; a second limit block is provided on the outer side wall of the second rod body, the second limit block is provided on the two opposite side walls of the second rod body, and a second limit groove for sliding the second limit block is provided on the inner wall of the second slide groove.

[0012] By adopting the above technical solution, the stability of the first rod body and the middle rod body, and the stability of the second rod body and the middle rod body when sliding is improved.

[0013] Preferably, the guide plate is L-shaped, and the inner wall of the guide plate is in close contact with the outer peripheral wall of the first positioning plate and the surface of the first positioning plate close to the first rod body.

[0014] By adopting the above technical solution, both inner walls of the guide plate are in close contact with the first positioning plate, thereby improving the guiding effect of the guide plate on the operating rod and enabling the operating rod to be more horizontal.

[0015] Preferably, a first mating bevel is provided on a side of the first rod body close to the first positioning plate, the first mating bevel is parallel to the first positioning plate, the guide plate is inclined, and the inclination angle of the guide plate is consistent with the inclination angle of the first mating bevel; the guide plate and the first rod body are rotatably connected via a rotating shaft, the first mating bevel is square, the side of the guide plate close to the first mating bevel is also square, the rotating shaft is located at the center of the first mating bevel, and the rotating shaft is also located at the center of the side of the guide plate close to the first mating bevel.

[0016] By adopting the above technical solution, rotating the guide plate can enable the guide plate to drive the operating rod to move along the length direction and width direction of the guide plate, thereby improving the operational adaptability.

[0017] Preferably, an elastic protrusion is provided on one side of the guide plate close to the first rod body, and the elastic protrusion is arranged in the middle of the four side edges of the guide plate. A limiting groove for the elastic protrusion to penetrate is opened on the first matching inclined surface, and the elastic protrusion is interference fit with the limiting groove.

[0018] By adopting the above technical solution, after the guide plate rotates, the elastic protrusion penetrates into the corresponding limiting groove, so that the guide plate remains stable.

[0019] Preferably, a mounting plate is provided at one end of the second rod body away from the first rod body, a fixing ring is provided on the mounting plate, a limiting clip is provided on the inner circumferential wall of the fixing ring, a plurality of limiting clips are provided at equal intervals along the circumference of the fixing ring, the marking pen is clamped in the fixing ring, and the marking pen is chalk.

[0020] By adopting the technical solution, the liner pen can be stably fixed by inserting it into the fixing ring, and the liner pen can also be replaced.

[0021] Preferably, the fixing collar is fixedly connected to a side of the mounting plate away from the second rod body.

[0022] By adopting the above technical solution, the drawing pen can be more easily subjected to force when it contacts the side mold during the drawing process.

[0023] Preferably, a second mating bevel is provided on a side of the second rod body away from the first rod body, the second mating bevel is parallel to the inner wall on the side away from the first positioning plate in the width direction of the side mold, the mounting plate is tilted, the inclination angle of the mounting plate is consistent with the inclination angle of the second mating bevel, and the central axis of the fixing ring is perpendicular to the inner wall on the side away from the first positioning plate in the width direction of the side mold.

[0024] By adopting the above technical solution, the smoothness of line drawing by the line drawing pen is improved.

[0025] In summary, this application includes the following beneficial technical effects:

[0026] 1. When positioning the end partition, first measure the position of the first positioning plate with a measuring ruler and draw the position of the first positioning plate with a marking pen, then paste the first positioning plate on the inner wall of the side mold, and then use the operating rod. The staff will hold the guide plate close to the first positioning plate with one hand, and hold the second rod with the other hand to keep the pen tip of the marking pen in contact with the inner wall of the side mold, and move the operating rod along the peripheral side wall of the first positioning plate. The first rod and the second rod are adaptively extended and retracted, that is, the position of the second positioning plate corresponding to the first positioning plate can be quickly drawn, and finally the second positioning plate can be pasted on the side mold drawing line. There is no need to measure the position of the second positioning plate again, which simplifies the overall positioning operation of the end partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an end partition positioning device for prefabricated box girders with different beam lengths in an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure used to display the operating lever in the embodiment of the present application.

[0029] Figure 3 It is a structural schematic diagram used to display the limit card strip in the embodiment of the present application.

[0030] Figure 4 It is a schematic diagram for showing the positions of the first positioning plate and the second positioning plate in an embodiment of the present application.

[0031] Explanation of the accompanying drawings: 1. first positioning plate; 2. operating rod; 21. first rod body; 211. first slide groove; 212. first matching slope; 22. second rod body; 221. second matching slope; 23. intermediate rod body; 231. second slide groove; 3. drawing pen; 4. side mold; 5. guide plate; 51. elastic protrusion; 511. limiting groove; 52. rotating shaft; 6. first limiting block; 61. first limiting groove; 7. second limiting block; 71. second limiting groove; 8. mounting plate; 81. fixing ring; 811. limiting clip; 9. second positioning plate. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] An embodiment of the present application discloses an end partition positioning device that is adaptable to prefabricated box girders with different beam lengths.

[0034] Reference Figure 1-4The end partition positioning device adapted to prefabricated box beams with different beam lengths comprises a first positioning plate 1, a second positioning plate 9, an operating rod 2, and a marker 3. The first positioning plate 1 is pasted on the inner wall of one side of the box beam side mold 4 in the width direction after being measured by a ruler. The operating rod 2 is arranged horizontally. The operating rod 2 comprises a first rod body 21, a second rod body 22, and an intermediate rod body 23. The first rod body 21 and the second rod body 22 are slidably arranged at both ends of the intermediate rod body 23. The first rod body 21 is arranged close to the first positioning plate 1. A guide plate 5 is arranged at one end of the first rod body 21 close to the first positioning plate 1. The guide plate 5 is in close contact with the outer peripheral wall of the first positioning plate 1. The second rod body 22 is arranged close to the inner wall of the other side of the side mold 4 in the width direction. The marker 3 is arranged at one end of the second rod body 22 away from the first rod body 21.

[0035] When positioning the end partition, first measure the position of the first positioning plate 1 with a measuring ruler and draw the position of the first positioning plate 1 with a marker pen 3, then paste the first positioning plate 1 on the inner wall of the side mold 4, and then use the operating rod 2. The staff uses one hand to press the guide plate 5 against the first positioning plate 1, and the other hand holds the second rod body 22 to keep the pen tip of the marker pen 3 in contact with the inner wall of the side mold 4, and moves the operating rod 2 along the peripheral side wall of the first positioning plate 1. The first rod body 21 and the second rod body 22 are adaptively extended and retracted, that is, the position of the second positioning plate 9 corresponding to the first positioning plate 1 can be quickly drawn, and finally the second positioning plate 9 can be pasted on the drawing line of the side mold 4. There is no need to measure the position of the second positioning plate 9 again, which simplifies the overall positioning operation of the end partition.

[0036] One end surface of the first rod body 21 close to the middle rod body 23 is provided with a first slide groove 211 for the middle rod body 23 to slide, and one end surface of the middle rod body 23 close to the second rod body 22 is provided with a second slide groove 231 for the second rod body 22 to slide. The first rod body 21 slides on the outside of the middle rod body 23, and the second rod body 22 slides on the inside of the middle rod body 23, thereby reducing the interference between the first rod body 21 and the second rod body 22 and increasing the telescopic range of the operating rod 2.

[0037] A first limit block 6 is provided on the outer wall of the middle rod body 23, and the first limit block 6 is provided on the two opposite side walls of the middle rod body 23. A first limit groove 61 for sliding the first limit block 6 is opened on the inner wall of the first slide groove 211, thereby improving the sliding stability between the first rod body 21 and the middle rod body 23.

[0038] A second limiting block 7 is provided on the outer wall of the second rod body 22, and the second limiting block 7 is provided on the two opposite side walls of the second rod body 22. A second limiting groove 71 for sliding of the second limiting block 7 is provided on the inner wall of the second slide groove 231, thereby improving the sliding stability between the second rod body 22 and the middle rod body 23.

[0039] The guide plate 5 is L-shaped, and the inner walls of the guide plate 5 are respectively in close contact with the outer wall of the first positioning plate 1 and the side of the first positioning plate 1 close to the first rod body 21. The inner walls of the two sides of the guide plate 5 are in close contact with the first positioning plate 1, which improves the guiding effect of the guide plate 5 on the operating rod 2 and enables the operating rod 2 to better maintain a horizontal state.

[0040] A first matching bevel 212 is provided on one side of the first rod body 21 close to the first positioning plate 1, and the first matching bevel 212 is parallel to the first positioning plate 1. The guide plate 5 is arranged obliquely, and the inclination angle of the guide plate 5 is consistent with the inclination angle of the first matching bevel 212. The guide plate 5 is rotatably connected to the first rod body 21 through a rotating shaft 52. The first matching bevel 212 is square, and the side of the guide plate 5 close to the first matching bevel 212 is also square. The rotating shaft 52 is located at the center of the first matching bevel 212, and the rotating shaft 52 is also located at the center of the side of the guide plate 5 close to the first matching bevel 212. The rotating shaft 52 is fixedly connected to the guide plate 5, and the rotating shaft 52 is rotatably connected to the first rod body 21. The cross section of the rotating shaft 52 is T-shaped. Rotating the guide plate 5 can enable the guide plate 5 to drive the operating rod 2 to move along the length direction and width direction of the guide plate 5, thereby improving the operational adaptability.

[0041] An elastic protrusion 51 is provided on one surface of the guide plate 5 close to the first rod body 21. The elastic protrusion 51 is provided in the middle of the four side edges of the guide plate 5. A limiting groove 511 for the elastic protrusion 51 to penetrate is provided on the first matching inclined surface 212. The limiting groove 511 corresponds to the elastic protrusion 51 one by one. After the guide plate 5 rotates 90 degrees, the elastic protrusion 51 can still penetrate into the limiting groove 511. The elastic protrusion 51 and the limiting groove 511 are interference fit. After the guide plate 5 rotates, the elastic protrusion 51 penetrates into the corresponding limiting groove 511, so that the guide plate 5 remains stable.

[0042] The second rod 22 is provided with a mounting plate 8 at one end away from the first rod 21, and a fixing ring 81 is provided on the mounting plate 8. A limit clamping strip 811 is provided on the inner peripheral wall of the fixing ring 81. A plurality of limit clamping strips 811 are provided at equal intervals along the circumference of the fixing ring 81. The marker 3 is clamped in the fixing ring 81. The marker 3 is a piece of chalk. The marker 3 can be stably fixed by inserting it into the fixing ring 81, and the marker 3 can also be replaced.

[0043] The fixing ring 81 is fixedly connected to the side of the mounting plate 8 away from the second rod 22 and is located at the center of the mounting plate surface, so that the marking pen 3 and the side mold 4 are more easily subjected to force during the marking process.

[0044] A second mating bevel 221 is set on a side of the second rod body 22 away from the first rod body 21, and the second mating bevel 221 is parallel to the inner wall of the side mold 4 away from the first positioning plate 1 in the width direction. The mounting plate 8 is tilted, and the inclination angle of the mounting plate 8 is consistent with the inclination angle of the second mating bevel 221. The central axis of the fixing ring 81 is perpendicular to the inner wall of the side mold 4 away from the first positioning plate 1 in the width direction, thereby improving the smoothness of line drawing by the drawing pen 3.

[0045] The implementation principle of the end diaphragm positioning device of the embodiment of the present application that is suitable for prefabricated box beams with different beam lengths is as follows:

[0046] When positioning the end partition, first measure the position of the first positioning plate 1 with a measuring ruler and draw the position of the first positioning plate 1 with a marker pen 3, then paste the first positioning plate 1 on the inner wall of the side mold 4, and then use the operating rod 2. The staff uses one hand to press the guide plate 5 against the first positioning plate 1, and the other hand holds the second rod body 22 to keep the pen tip of the marker pen 3 in contact with the inner wall of the side mold 4, and moves the operating rod 2 along the peripheral side wall of the first positioning plate 1. The first rod body 21 and the second rod body 22 are adaptively extended and retracted, that is, the position of the second positioning plate 9 corresponding to the first positioning plate 1 can be quickly drawn, and finally the second positioning plate 9 can be pasted on the drawing line of the side mold 4. There is no need to measure the position of the second positioning plate 9 again, which simplifies the overall positioning operation of the end partition.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An end diaphragm positioning device for prefabricated box beams of different beam lengths, characterized in that: The invention comprises a first positioning plate (1), a second positioning plate (9), an operating rod (2), and a marker (3); the first positioning plate (1) is pasted on the inner wall of one side of the box beam side mold (4) in the width direction after measurement; the operating rod (2) is arranged horizontally; the operating rod (2) comprises a first rod body (21), a second rod body (22), and an intermediate rod body (23); the first rod body (21) and the second rod body (22) are slidably arranged at two ends of the intermediate rod body (23); the first rod body (21) is arranged close to the first positioning plate (1); a guide plate (5) is arranged at one end of the first rod body (21) close to the first positioning plate (1); the guide plate (5) is in close contact with the outer peripheral wall of the first positioning plate (1); the second rod body (22) is arranged close to the inner wall of the other side of the side mold (4) in the width direction; and the marker (3) is arranged at one end of the second rod body (22) away from the first rod body (21).

2. The end diaphragm positioning device for prefabricated box girders with different beam lengths according to claim 1 is characterized in that: An end surface of the first rod body (21) close to the middle rod body (23) is provided with a first sliding groove (211) for the middle rod body (23) to slide, and an end surface of the middle rod body (23) close to the second rod body (22) is provided with a second sliding groove (231) for the second rod body (22) to slide.

3. The end diaphragm positioning device for prefabricated box girders with different beam lengths according to claim 2 is characterized in that: A first limit block (6) is arranged on the outer wall of the intermediate rod body (23), the first limit block (6) is arranged on the two opposite side walls of the intermediate rod body (23), and a first limit groove (61) for sliding of the first limit block (6) is opened on the inner wall of the first slide groove (211); a second limit block (7) is arranged on the outer wall of the second rod body (22), the second limit block (7) is arranged on the two opposite side walls of the second rod body (22), and a second limit groove (71) for sliding of the second limit block (7) is opened on the inner wall of the second slide groove (231).

4. The end diaphragm positioning device for prefabricated box beams with different beam lengths according to claim 1 is characterized in that: The guide plate (5) is L-shaped, and the inner wall of the guide plate (5) is respectively in close contact with the outer peripheral wall of the first positioning plate (1) and a surface of the first positioning plate (1) close to the first rod body (21).

5. The end diaphragm positioning device for prefabricated box girders with different beam lengths according to claim 1 is characterized in that: A first matching bevel (212) is arranged on one side of the first rod body (21) close to the first positioning plate (1), and the first matching bevel (212) is parallel to the first positioning plate (1). The guide plate (5) is arranged at an angle, and the inclination angle of the guide plate (5) is consistent with the inclination angle of the first matching bevel (212); the guide plate (5) is rotatably connected to the first rod body (21) via a rotating shaft (52), the first matching bevel (212) is square, and the side of the guide plate (5) close to the first matching bevel (212) is also square, the rotating shaft (52) is located at the center of the first matching bevel (212), and the rotating shaft (52) is also located at the center of the side of the guide plate (5) close to the first matching bevel (212).

6. The end diaphragm positioning device for prefabricated box girders with different beam lengths according to claim 5 is characterized in that: An elastic protrusion (51) is arranged on a surface of the guide plate (5) close to the first rod body (21); the elastic protrusion (51) is arranged in the middle of the four side edges of the guide plate (5); a limiting groove (511) for the elastic protrusion (51) to penetrate is opened on the first matching inclined surface (212); the elastic protrusion (51) and the limiting groove (511) are interference fit.

7. The end diaphragm positioning device for prefabricated box girders with different beam lengths according to claim 1 is characterized in that: A mounting plate (8) is provided at one end of the second rod body (22) away from the first rod body (21); a fixing ring (81) is provided on the mounting plate (8); a limit clamping strip (811) is provided on the inner peripheral wall of the fixing ring (81); a plurality of limit clamping strips (811) are provided at equal intervals along the circumference of the fixing ring (81); the marking pen (3) is clamped in the fixing ring (81); and the marking pen (3) is a piece of chalk.

8. The end diaphragm positioning device for prefabricated box girders with different beam lengths according to claim 7 is characterized in that: The fixing collar (81) is fixedly connected to a side of the mounting plate (8) away from the second rod body (22).

9. The end diaphragm positioning device for prefabricated box girders with different beam lengths according to claim 7 is characterized in that: A second matching bevel (221) is provided on a side of the second rod body (22) away from the first rod body (21); the second matching bevel (221) is parallel to the inner wall of the side mold (4) away from the first positioning plate (1) in the width direction; the mounting plate (8) is arranged at an angle; the inclination angle of the mounting plate (8) is consistent with the inclination angle of the second matching bevel (221); the central axis of the fixing ring (81) is perpendicular to the inner wall of the side mold (4) away from the first positioning plate (1) in the width direction.

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