Beam column type guardrail stand column foundation positioning device and positioning method

Abstract

The invention discloses a beam column type guardrail stand column foundation positioning device and a positioning method. The beam column type guardrail stand column foundation positioning device comprises a telescopic supporting leg, a first telescopic box staff, a second telescopic box staff, a third telescopic box staff, a fourth telescopic box staff and a positioning device, wherein the first telescopic box staff, the second telescopic box staff, the third telescopic box staff and the fourth telescopic box staff are arranged at the top of the telescopic supporting leg and connected end to end; the transverse plate can slide along the first telescopic box staff and the second telescopic box staff, ejection components are arranged at the joints of the transverse plate and the first telescopic box staff and the joints of the transverse plate and the second telescopic box staff, a height adjusting device is arranged on the transverse plate, and the height adjusting device is connected with a positioning steel plate. The positioning steel plate can be freely adjusted in the transverse direction, the longitudinal direction and the height direction, and then accurate positioning of the positioning steel plate is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of guardrail processing devices, and in particular to a beam-column type guardrail column foundation positioning device and a positioning method. Background Art

[0002] Metal beam-column guardrails have the advantages of good anti-collision ability, light weight, flexible structure, small bridge deck area, good permeability, etc., and are widely used in bridge projects. Metal beam-column guardrails are anchored to the concrete foundation cast on the bridge deck through positioning steel plates and anchor bolts. During the concrete foundation construction stage, the positioning steel plates are pre-placed in the concrete. After the concrete hardens, they form a whole with the concrete, which can provide a stable support connection for the upper guardrail structure. However, there are a series of technical difficulties and challenges in the pre-embedding of positioning steel plates. The positioning accuracy and installation quality of the positioning steel plates directly affect the subsequent installation and use safety of the guardrail. In particular, when the positioning steel plates are densely arranged and suspended, the embedding quality is more difficult to control. The existing solutions to the above problems are mostly to train construction personnel and strengthen the construction requirements on site, which cannot achieve a permanent effect.

[0003] Therefore, it is necessary to design a basic positioning device and positioning method for the beam-column guardrail column to effectively improve the positioning accuracy of the positioning steel plate, and simple construction is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a beam-column type guardrail column foundation positioning device and positioning method, which effectively improves the positioning accuracy of the positioning steel plate and is easy to construct.

[0005] To achieve the above object, the present invention provides the following solutions: A beam-column guardrail column foundation positioning device comprises a telescopic support leg, a first telescopic tower ruler, a second telescopic tower ruler, a third telescopic tower ruler, and a fourth telescopic tower ruler which are connected end to end at the top of the telescopic support leg, and a transverse plate which is arranged between the first telescopic tower ruler and the second telescopic tower ruler and can slide along the first telescopic tower ruler and the second telescopic tower ruler, wherein a ejection member is arranged at the connection between the transverse plate and the first telescopic tower ruler and the second telescopic tower ruler, and a height adjustment device is arranged on the transverse plate, and the height adjustment device is connected to a positioning steel plate.

[0006] Preferably, the first telescopic tower ruler and the second telescopic tower ruler include a supporting tower ruler and an adjusting tower ruler, the adjusting tower ruler can be telescoped inside the supporting tower ruler, and the supporting tower ruler is provided with a first button abutting against the adjusting tower ruler; The third telescopic tower ruler and the fourth telescopic tower ruler include cross braces arranged at both ends and adjustable cross braces connected to the cross braces. The adjustable cross brace can be extended and retracted inside the cross brace. The cross brace is provided with a second button abutting against the adjustable cross brace.

[0007] Preferably, the ejection component includes connecting rods respectively arranged at both ends of the horizontal plate for insertion and withdrawal, and a spring with one end connected to the connecting rod and the other end fixedly connected to the horizontal plate away from the insertion and withdrawal end. The connecting rods are respectively slidably connected to the first telescopic tower ruler and the second telescopic tower ruler.

[0008] Preferably, a first sliding block is provided at the end of the connecting rod away from the cross plate, and a groove for sliding of the first sliding block is provided at the connection between the first telescopic tower ruler, the second telescopic tower ruler and the connecting rod.

[0009] Preferably, the first telescopic tower ruler, the second telescopic tower ruler, the third telescopic tower ruler and the fourth telescopic tower ruler are all provided with a level.

[0010] Preferably, the height adjustment device includes a positioning plate arranged on the top surface of the transverse plate, and a tapping tube that penetrates both the transverse plate and the positioning plate and is threadedly connected to the positioning plate, and the bottom of the tapping tube is connected to the positioning steel plate.

[0011] Preferably, a fixing plate is provided at the bottom of the tapping tube, a coil and an iron core are provided inside the fixing plate, the coil is electrically connected to a power supply and a switch provided on the horizontal plate through a wire, and the fixing plate is suction-connected to the positioning steel plate.

[0012] Preferably, the telescopic leg includes an adjusting tube and a supporting tube arranged inside the adjusting tube, a telescopic structure capable of realizing telescopic movement of the supporting tube is arranged at the bottom of the supporting tube, and the telescopic structure is connected to the bottom of the adjusting tube.

[0013] Preferably, the telescopic structure comprises a first connecting rod and a second connecting rod hinged in the middle, the top ends of the first connecting rod and the second connecting rod are respectively slidably connected to a first guide rail arranged at the bottom of the support tube through a second slider, and the bottom end of the second connecting rod is slidably connected to a second guide rail arranged at the bottom end of the adjustment tube through a third slider; An arc gear is provided at the bottom end of the first connecting rod, the arc gear is located on one side of the second guide rail, the arc gear is meshed with a first gear at an end away from the connection with the first connecting rod, the first gear is penetrated by a baffle through a connecting shaft, the connecting shaft is connected to a worm wheel at an end away from the first gear, the worm wheel is meshed with a worm, a helical gear is provided at the end of the worm, the helical gear is meshed with a second gear provided on a handle, the handle is rotatably connected to the baffle, and the handle is provided through the adjustment tube; The baffle is connected to the side wall of the regulating tube. A torsion spring is arranged on the baffle near the first connecting rod to prevent the first gear from rotating. One end of the torsion spring is fixed by a slotted pan head screw, and the other end is fixed by the baffle.

[0014] Preferably, a universal wheel is provided at the bottom of the telescopic leg.

[0015] The present invention also discloses a method for positioning a beam-column type guardrail column foundation, which mainly comprises the following steps: The beam-column guardrail column foundation positioning device is arranged on both sides of the steel bars of the bridge deck; Connecting the positioning steel plate to the height adjustment device; Adjust the position of the horizontal plate so that the positioning steel plate is set at a predetermined position Compared with the prior art, the present invention has achieved the following technical effects: By setting telescopic legs, the height of the positioning steel plate can be adjusted. By setting a third telescopic tower ruler and a fourth telescopic tower ruler, the positioning steel plate can be moved along the length direction of the third telescopic tower ruler and the fourth telescopic tower ruler. By setting a first telescopic tower ruler and a second telescopic tower ruler, the positioning steel plate can be moved along the length direction of the first telescopic tower ruler and the second telescopic tower ruler. By setting a height adjustment device, fine adjustment of the height of the positioning steel plate can be achieved. That is, through the positioning device, the positioning steel plate can be freely adjusted in six directions: horizontally, longitudinally and in height, thereby achieving accurate positioning of the positioning steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Attached Figure 1 It is a schematic diagram of the overall structure front view of the beam-column type guardrail column foundation positioning device and positioning method disclosed in the present invention; Attached Figure 2 It is a schematic diagram of the overall structure of the top view of the beam-column type guardrail column foundation positioning device and positioning method disclosed in the present invention; Attached Figure 3 For attachment Figure 1 Schematic diagram of the cross-section at AA in the middle; Attached Figure 4 For attachment Figure 1 Schematic diagram of the cross section at BB in the middle; Attached Figure 5 For attachment Figure 1Schematic diagram of the cross section at CC; Attached Figure 6 It is a schematic diagram of the telescopic structure of the beam-column type guardrail column foundation positioning device disclosed in the present invention; Attached Figure 7 It is a schematic diagram of the construction process of the beam-column type guardrail column foundation positioning device disclosed in the present invention; Among them, 1. positioning steel plate; 2. first telescopic tower ruler; 3. second telescopic tower ruler; 4. third telescopic tower ruler; 5. fourth telescopic tower ruler; 6. level; 7. first button; 8. cross brace; 9. adjustment cross brace; 10. handle; 11. adjustment tube; 12. support tube; 13. universal wheel; 14 spring; 15. coil; 16. iron core; 17. fixing plate; 18. cross plate; 19. tapping tube; 20. positioning plate; 21. power supply; 22. switch ; 23. First guide rail; 24. Second slider; 25. First connecting rod; 26. Second connecting rod; 27. Second guide rail; 28. Third slider; 29. ​​Slotted pan head screw; 30. Torsion spring; 31. Worm; 32. Second gear; 33. Worm wheel; 34. First gear; 35. Baffle; 36. Arc gear; 37. Telescopic structure; 38. Bridge deck; 39. Steel bar; 40. Second button; 41. Supporting tower ruler; 42. Adjusting tower ruler. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The purpose of the present invention is to provide a beam-column type guardrail column foundation positioning device and positioning method, which can effectively improve the positioning accuracy of the positioning steel plate and is easy to construct.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] refer to Figure 1 and Figure 2The beam-column type guardrail column foundation positioning device disclosed in the embodiment of the present invention at least includes a telescopic support leg for supporting the entire positioning device, and the top of the telescopic support leg is provided with a first telescopic tower ruler 2, a second telescopic tower ruler 3, a third telescopic tower ruler 4 and a fourth telescopic tower ruler 5 connected end to end, the first telescopic tower ruler 2, the second telescopic tower ruler 3, the third telescopic tower ruler 4 and the fourth telescopic tower ruler 5 are surrounded by a rectangular frame, the first telescopic tower ruler 2 and the second telescopic tower ruler 3 are opposite sides of the rectangular frame, a horizontal plate 18 is connected between the first telescopic tower ruler 2 and the second telescopic tower ruler 3, the horizontal plate 18 can slide along the extension direction of the length of the first telescopic tower ruler 2 and the second telescopic tower ruler 3, and the connection between the horizontal plate 18 and the first telescopic tower ruler 2 and the second telescopic tower ruler 3 is provided with an ejection component, and a height adjustment device is provided on the horizontal plate 18, and the height adjustment device is connected to the positioning steel plate 1; In this embodiment, the height of the positioning steel plate 1 can be adjusted by setting telescopic legs, and the movement of the positioning steel plate 1 along the length direction of the third telescopic tower ruler 4 and the fourth telescopic tower ruler 5 can be achieved by setting the first telescopic tower ruler 2 and the second telescopic tower ruler 3. The movement of the positioning steel plate 1 along the length direction of the first telescopic tower ruler 2 and the second telescopic tower ruler 3 can be achieved by setting the height adjustment device. That is, through the entire positioning device, the positioning steel plate 1 can be freely adjusted in six directions of transverse, longitudinal and height, thereby achieving accurate positioning of the positioning steel plate 1.

[0022] refer to Figure 1 , Figure 2 and Figure 7 In one embodiment, the first telescopic scale 2 and the second telescopic scale 3 include a supporting scale 41 and an adjusting scale 42. The interior of the supporting scale 41 is a hollow structure. The adjusting scale 42 can be extended and retracted inside the telescopic scale. The supporting scale 41 is also provided with a first button 7 for abutting against the adjusting scale 42. When the first button 7 is pressed once, the first button 7 no longer abuts against the adjusting scale 42, and the adjusting scale 42 can be extended and retracted inside the supporting scale 41. After adjusting to a preset length, the first button 7 is pressed again, and the first button 7 abuts against the adjusting scale 42 again to prevent the adjusting scale 42 from moving inside the supporting scale 41. The third telescopic tower ruler 4 and the fourth telescopic tower ruler 5 each include two cross braces 8 and an adjustable cross brace 9, the two cross braces 8 are connected by an adjustable cross brace 9, the adjustable cross brace 9 can be extended and retracted along the inside of the cross brace 8, and the two cross braces 8 are each provided with a second button 40 abutting against the adjustable cross brace 9. By arranging cross braces 8 at both ends of the adjustable cross brace 9, the positioning steel plate 1 can be adjusted at both ends along the length direction of the third telescopic tower ruler 4 and the fourth telescopic tower ruler 5.

[0023] refer to Figure 1As a preferred embodiment, the ejection member includes connecting rods respectively inserted and pulled at both ends of the horizontal plate 18, one end of the connecting rod is slidably connected to the first telescopic tower ruler 2 or the second telescopic tower ruler 3, and the other end of the connecting rod is connected to the inside of the horizontal plate 18 through the spring 14. The elasticity of the spring 14 can realize the extension and retraction of the connecting rod inside the horizontal plate 18. When the length of the third telescopic tower ruler 4 and the fourth telescopic tower ruler 5 is adjusted, since the length of the horizontal plate 18 is fixed, the spring 14 can be extended and retracted to make the connecting rod extend or shorten inside the horizontal plate 18 to adapt to the length of the third telescopic tower ruler 4 and the fourth telescopic tower ruler 5; refer to Figure 1 and Figure 2 As an embodiment, a first slider is provided at the end of the connecting rod away from the cross plate 18, and a groove for sliding of the first slider is provided at the connection between the first telescopic tower ruler 2 and the second telescopic tower ruler 3 and the connecting rod. By arranging the first slider and the groove in coordination, the resistance of the cross plate 18 when sliding on the first telescopic tower ruler 2 and the second telescopic tower ruler 3 can be reduced.

[0024] refer to Figure 1 and Figure 2 As a preferred method, the first telescopic tower ruler 2, the second telescopic tower ruler 3, the third telescopic tower ruler 4 and the fourth telescopic tower ruler 5 are all provided with a level 6, which can ensure the horizontality of the positioning steel plate 1 during the adjustment process, thereby improving the accuracy of the positioning of the positioning steel plate 1.

[0025] refer to Figure 4 As a preferred method, the height adjustment device includes a positioning plate 20 arranged on the top surface of the horizontal plate 18, and a tapping tube 19 that penetrates both the horizontal plate 18 and the positioning plate 20. The tapping tube 19 is threadedly connected to the positioning plate 20, and the bottom of the tapping tube 19 is connected to the positioning steel plate 1. Through the threaded connection between the tapping tube 19 and the positioning plate 20, the positioning steel plate 1 can be fine-tuned in the height direction, further ensuring the accuracy of the positioning of the positioning steel plate 1.

[0026] refer to Figure 4 As an implementation method, a fixing plate 17 is provided at the bottom of the tapping tube 19, and a coil 15 and an iron core 16 are provided inside the fixing plate 17. The coil 15 is electrically connected to a power supply 21 and a switch 22 provided on the horizontal plate 18 through a wire, and the fixing plate 17 is connected to the steel plate by suction. When the coil 15 is energized, the iron core 16 inside the fixing plate 17 has a magnetic force, which can attract the positioning steel plate 1. When the positioning steel plate 1 is adjusted to the specified position, the coil 15 is de-energized, and the magnetic force of the iron core 16 disappears, thereby placing the positioning steel plate 1 at the specified position. It should be noted that the wire passes through the tapping tube 19 and is connected to the power supply 21 and the switch 22, that is, the tapping tube 19 is set as an internal hollow structure, which can not only protect the wire but also ensure the aesthetics of the device.

[0027] refer to Figure 1-5 As an implementation mode, the telescopic support leg includes an adjusting tube 11 and a supporting tube 12 arranged inside the adjusting tube 11, a telescopic structure 37 is arranged at the bottom of the supporting tube 12, and the telescopic structure 37 is connected to the bottom of the adjusting tube 11. By setting the telescopic structure 37, the supporting tube 12 can be telescoped inside the adjusting tube 11, so as to adjust the height of the positioning steel plate 1; It should be noted that the telescopic structure 37 can be an electric push rod, a hydraulic telescopic rod or a pneumatic telescopic rod, as long as the support tube 12 can be telescoped inside the adjustment tube 11 .

[0028] refer to Figure 6 As an embodiment, the telescopic structure 37 includes a first connecting rod 25 and a second connecting rod 26 which are hinged in the middle. The top ends of the first connecting rod 25 and the second connecting rod 26 are respectively slidably connected to a first guide rail 23 provided at the bottom of the support tube 12 through a second slider 24, and the bottom end of the second connecting rod 26 is slidably connected to a second guide rail 27 provided at the bottom end of the adjustment tube 11 through a third slider 28. The bottom end of the first connecting rod 25 is connected with an arc gear 36 by bolts. The arc gear 36 is located on one side of the second guide rail 27. The arc gear 36 is meshed with a first gear 34 at the end connected to the first connecting rod 25. The first gear 34 is penetrated by a baffle 35 through a connecting shaft. The baffle 35 is connected to the side wall of the adjusting tube 11. The end of the connecting shaft away from the first gear 34 is connected with a worm gear 33. The worm gear 33 is meshed with a worm 31. The end of the worm 31 is provided with a helical gear. The helical gear is meshed with a second gear 32 provided on the handle 10. The handle 10 is rotatably connected with the baffle 35, and the handle 10 is provided through the adjusting tube 11. A torsion spring 30 is provided near the first connecting rod 25 to prevent the first gear 34 from rotating. One end of the torsion spring 30 is fixed by a slotted pan head screw 29, and the other end is fixed by the baffle 35. When the height of the positioning steel plate 1 needs to be adjusted, by turning the handle 10, the handle 10 drives the second gear 32 to rotate, and then drives the bevel gear and the worm 31 to rotate. Since the worm 31 is meshing with the worm wheel 33, the worm wheel 33 can rotate. Since the worm wheel 33 is coaxial with the first gear 34, the first gear 34 rotates, and the first gear 34 drives the arc gear 36 to rotate. At this time, since the arc gear 36 is connected to the bottom end of the first connecting rod 25, the first connecting rod 25 is pushed or pulled by the arc gear 36, so that the second slider 24 and the third slider 28 can slide in the first guide rail 23 and the second guide rail 27 respectively, so that the support tube 12 can be extended and retracted in the adjustment tube 11, thereby realizing the height adjustment of the positioning steel plate 1.

[0029] refer to Figure 1As an implementation mode, a universal wheel 13 is provided at the bottom of the telescopic leg through bolts, and the movement of the positioning device can be facilitated by providing the universal wheel 13.

[0030] The beam-column type guardrail column foundation positioning method disclosed in this embodiment: the beam-column type guardrail column foundation positioning device is arranged on both sides of the steel bars 39 of the bridge deck 38, and the coil 15 in the fixing plate 17 is energized, so that the fixing plate 17 attracts the positioning steel plate 1, and the height of the positioning steel plate 1 is adjusted by turning the handle 10, so that the horizontal plate 18 slides in the grooves of the first telescopic tower ruler 2 and the second telescopic tower ruler 3, and the positioning steel plate 1 can be moved along the length direction of the first telescopic tower ruler 2 and the second telescopic tower ruler 3. The third telescopic tower ruler 4 and the fourth telescopic tower ruler 5 are extended and retracted, thereby driving the extension and retraction of the spring 14, so as to realize the positioning steel plate 1. The plate 1 moves along the length direction of the third telescopic ruler 4 and the fourth telescopic ruler 5, and the tapping tube 19 is screwed to achieve fine adjustment of the height of the positioning steel plate 1. After determining the position of the first positioning steel plate 1, the first positioning steel plate 1 is fixed by binding or welding, and the adjustment ruler 42 is pulled out from the supporting ruler 41 through the first button 7 to adjust the length of the first telescopic ruler 2 and the second telescopic ruler 3. The cross plate 18 slides in the grooves of the first telescopic ruler 2 and the second telescopic ruler 3, and the corresponding distance is adjusted according to the scales on the first telescopic ruler 2 and the second telescopic ruler 3, and then the position of the second positioning steel plate 1 is adjusted, and so on.

[0031] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A beam-column guardrail column foundation positioning device, characterized in that: It includes telescopic legs, a first telescopic tower ruler, a second telescopic tower ruler, a third telescopic tower ruler, and a fourth telescopic tower ruler which are connected end to end at the top of the telescopic legs, and a horizontal plate which is arranged between the first telescopic tower ruler and the second telescopic tower ruler and can slide along the first telescopic tower ruler and the second telescopic tower ruler, a ejection component is arranged at the connection between the horizontal plate and the first telescopic tower ruler and the second telescopic tower ruler, a height adjustment device is arranged on the horizontal plate, and the height adjustment device is connected to a positioning steel plate.

2. The beam-column type guardrail column foundation positioning device according to claim 1 is characterized in that: The first telescopic tower ruler and the second telescopic tower ruler include a supporting tower ruler and an adjusting tower ruler, wherein the adjusting tower ruler can be telescoped inside the supporting tower ruler, and the supporting tower ruler is provided with a first button abutting against the adjusting tower ruler; The third telescopic tower ruler and the fourth telescopic tower ruler include cross braces arranged at both ends and adjustable cross braces connected to the cross braces. The adjustable cross brace can be extended and retracted inside the cross brace. The cross brace is provided with a second button abutting against the adjustable cross brace.

3. The beam-column type guardrail column foundation positioning device according to claim 1 is characterized in that: The ejection component includes connecting rods respectively inserted and pulled at both ends of the horizontal plate, and a spring with one end connected to the connecting rod and the other end fixedly connected to the horizontal plate away from the insertion and pulling end. The connecting rods are respectively slidably connected to the first telescopic tower ruler and the second telescopic tower ruler.

4. The beam-column type guardrail column foundation positioning device according to claim 3 is characterized in that: The connecting rod is provided with a first sliding block at the end away from the transverse plate, and the connection between the first telescopic tower ruler, the second telescopic tower ruler and the connecting rod is provided with a groove for the first sliding block to slide.

5. The beam-column type guardrail column foundation positioning device according to claim 1 is characterized in that: The first telescopic tower ruler, the second telescopic tower ruler, the third telescopic tower ruler and the fourth telescopic tower ruler are all provided with a level.

6. The beam-column type guardrail column foundation positioning device according to claim 1 is characterized in that: The height adjustment device includes a positioning plate arranged on the top surface of the transverse plate, and a tapping tube that penetrates the transverse plate and the positioning plate and is threadedly connected to the positioning plate, and the bottom of the tapping tube is connected to the positioning steel plate.

7. The beam-column type guardrail column foundation positioning device according to claim 6 is characterized in that: A fixing plate is arranged at the bottom of the tapping tube, a coil and an iron core are arranged inside the fixing plate, the coil is electrically connected to a power supply and a switch arranged on the horizontal plate through a wire, and the fixing plate is suction-connected to the positioning steel plate.

8. The beam-column type guardrail column foundation positioning device according to claim 1 is characterized in that: The telescopic leg comprises an adjusting tube and a supporting tube arranged inside the adjusting tube, a telescopic structure capable of realizing telescopic movement of the supporting tube is arranged at the bottom of the supporting tube, and the telescopic structure is connected to the bottom of the adjusting tube.

9. The beam-column type guardrail column foundation positioning device according to claim 8, characterized in that: The telescopic structure comprises a first connecting rod and a second connecting rod hinged in the middle, the top ends of the first connecting rod and the second connecting rod are respectively slidably connected to a first guide rail arranged at the bottom of the support tube through a second slider, and the bottom end of the second connecting rod is slidably connected to a second guide rail arranged at the bottom end of the adjustment tube through a third slider; An arc gear is provided at the bottom end of the first connecting rod, the arc gear is located on one side of the second guide rail, the arc gear is meshed with a first gear at an end away from the connection with the first connecting rod, the first gear is penetrated by a baffle through a connecting shaft, the connecting shaft is connected to a worm wheel at an end away from the first gear, the worm wheel is meshed with a worm, a helical gear is provided at the end of the worm, the helical gear is meshed with a second gear provided on a handle, the handle is rotatably connected to the baffle, and the handle is provided through the adjustment tube; The baffle is connected to the side wall of the regulating tube. A torsion spring is arranged on the baffle near the first connecting rod to prevent the first gear from rotating. One end of the torsion spring is fixed by a slotted pan head screw, and the other end is fixed by the baffle.

10. A method for positioning a beam-column guardrail column foundation, characterized in that: The beam-column type guardrail column foundation positioning device according to any one of claims 1 to 9 mainly comprises the following steps: The beam-column guardrail column foundation positioning device is arranged on both sides of the steel bars of the bridge deck; Connecting the positioning steel plate to the height adjustment device; The position of the transverse plate is adjusted so that the positioning steel plate is set at a predetermined position.

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