A road and bridge construction measurement device and method

Abstract

The present invention discloses a road bridge construction measurement device and method, which relates to the technical field of bridge construction measurement, including a transverse connecting frame, a movable distance measuring part connected to the transverse connecting frame is arranged on the inner side of the guide frame, and a plane contact part is arranged on the inner side of the positioning column. The present invention sets a plane contact part, and the first piston rod will support the device when the positioning plate is placed on the top of the bridge. When the internal solutions of the three first sleeves on the positioning plate all enter the second sleeve, the first contact piece contacts the second contact piece, and pressing the control switch at this time will cause the telescopic cylinder to extend. Similarly, if the telescopic cylinder cannot extend when the control switch is pressed, it means that the bottom ends of the first piston rods under the three first sleeves are not in the same plane, and then the position of the positioning plate needs to be adjusted to improve the accuracy of the equipment detection and prevent the accuracy of the measurement data from being affected by the tilt of the equipment during measurement.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction measurement, and in particular to a road bridge construction measurement device and method. Background Art

[0002] Road and bridge measurement is an important and fundamental link in road and bridge construction, which is directly related to the entire process of road and bridge construction and the final construction quality. During the construction of roads and bridges, it is necessary to accurately measure the thickness of the bridge to be constructed in a timely manner so as to calculate and measure the load of the bridge construction, thereby ensuring that the bridge construction meets the standards.

[0003] At present, when measuring the thickness of a bridge, it is generally done manually using a tape measure. However, since one end of the tape measure cannot remain parallel and fit with the bridge deck, it is very easy to cause the tape measure and the bridge to be tilted, which will cause the test data to be too large or too small, greatly affecting the accuracy of subsequent bridge load calculations. Summary of the invention

[0004] The purpose of the present invention is to provide a road and bridge construction measurement device and method in order to solve the problem of low detection accuracy.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a road and bridge construction measurement device, comprising a transverse connecting frame, a longitudinal connecting frame is installed at the bottom of one end of the transverse connecting frame, a guide frame is installed at the bottom of the longitudinal connecting frame, a movable distance measuring part connected to the transverse connecting frame is arranged on the inner side of the guide frame, a positioning column located on one side of the longitudinal connecting frame is arranged at the bottom of the transverse connecting frame, a positioning plate located above the positioning rod is installed at the bottom of the positioning column, and a planar contact part is arranged on the inner side of the positioning column.

[0006] As a further solution of the present invention: the planar contact member includes a second sleeve installed on the inner side of the positioning column, a connecting warehouse is provided on the top of the second sleeve, a battery is installed on the top of the connecting warehouse, a second piston rod extending to the inner side of the connecting warehouse is inserted inside the second sleeve, a first contact piece located on the inner side of the connecting warehouse is installed on the top of the second piston rod, and a second contact piece located above the first contact piece is installed on the inner wall of the connecting warehouse, three first sleeves are provided on the positioning plate, and the three first sleeves are distributed at equal distances along the central axis of the positioning plate, a first piston rod penetrating the positioning plate is inserted inside the first sleeve, a first return spring connected to the first piston rod is provided at the bottom of the positioning plate, a guide pipe connected to the bottom of the second sleeve is provided on the top of the first sleeve, an upper connecting frame is installed on the top of one end of the transverse connecting frame away from the longitudinal connecting frame, a control switch is installed on the upper connecting frame, and a telescopic cylinder located above the transverse connecting frame is installed on one side of the upper connecting frame.

[0007] As a further solution of the present invention: the second contact piece is electrically connected to the battery through a wire, and the first contact piece, the control switch, and the telescopic cylinder are connected in series through the wire.

[0008] As a further solution of the present invention: the diameter of the first sleeve is equal to the diameter of the second sleeve, the height of the second sleeve is three times that of the first sleeve, and the longest distance between the second contact piece and the first contact piece is equal to the maximum movement distance of the second piston rod.

[0009] As a further solution of the present invention: the central axis of the positioning rod coincides with the central axis of the positioning plate.

[0010] As a further solution of the present invention: the movable distance measuring part includes a guide frame installed at the bottom of the longitudinal connecting frame, a counterweight block is slidably connected to the inner side of the guide frame, a support plate is installed at the bottom of the counterweight block, the positioning rod is installed on the support plate and is located below the positioning plate, the output end of the telescopic cylinder is connected to the Z-shaped pushing plate, the top of the counterweight block is connected to the traction rope, the inner side of the transverse connecting frame is provided with a fixed pulley for guiding and limiting the traction rope, one end of the traction rope is provided with a movable plate slidably connected to the transverse connecting frame, rulers located on the outside of the transverse connecting frame are provided on both sides of the movable plate, and the transverse connecting frame is installed on both sides. There is a side connecting frame, and a ruler runs through the side connecting frame. An extension rod is installed on the side of the movable plate away from the traction rope, and the bottom end of the Z-shaped pushing plate is sleeved on the extension rod. The bottom end of the Z-shaped pushing plate is provided with a second return spring connected with the end of the extension rod away from the movable plate, a ratchet rod is installed on the side of the ruler away from the transverse connecting frame, and a hexagonal plug rod is inserted on the side of the side connecting frame away from the transverse connecting frame, and a third return spring connected with the hexagonal plug rod is provided on the top of the side connecting frame, a positioning tube is fixedly connected to the hexagonal plug rod, and a ratchet pawl meshing with the ratchet rod is rotatably connected to the outer side of the positioning tube, and a torsion spring is clamped between the ratchet pawl and the positioning tube through a slot.

[0011] As a further solution of the present invention: the length of the ruler is equal to the maximum distance from the top of the positioning rod to the bottom of the first piston rod, and the zero scale line on the ruler is aligned with the movable plate.

[0012] As a further solution of the present invention: the transverse connecting frame is provided with sliding grooves matching the two sides of the movable plate.

[0013] As a further solution of the present invention: the maximum contraction distance of the third return spring is greater than the thickness of the ratchet rod.

[0014] The present invention also discloses a road and bridge construction measurement method, which uses the above-mentioned road and bridge construction measurement device and comprises the following steps:

[0015] S1: First place the longitudinal connecting frame on the edge of the bridge, then pull the transverse connecting frame to move the positioning rod under the bridge and move the positioning plate above the bridge;

[0016] S2: placing the positioning plate on the bridge deck, and adjusting the placement position of the positioning plate by operating the plane contact member, so that the positioning plate is parallel to the top of the bridge;

[0017] S3: The movable distance measuring part is started to move the measuring rod upward along the guide frame so that the measuring rod contacts the bottom of the bridge. At this time, the thickness of the bridge can be measured by the movable distance measuring part.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. By setting a flat contact piece, when the positioning plate is placed on the top of the bridge, the first piston rod will support the equipment, so that the positioning plate can be moved downward relative to the first piston rod. During this process, the aqueous solution inside the first sleeve enters the second sleeve through the guide tube due to pressure. When the internal solutions of the three first sleeves on the positioning plate all enter the second sleeve, the first contact piece contacts the second contact piece. At this time, pressing the control switch will cause the telescopic cylinder to extend. Similarly, if the telescopic cylinder cannot extend when the control switch is pressed, it means that the bottom ends of the first piston rods under the three first sleeves are not in the same plane. Then the position of the positioning plate needs to be adjusted to improve the accuracy of equipment detection and prevent the accuracy of measurement data from being affected by the tilt of the equipment during measurement;

[0020] 2. By setting up a movable distance measuring part, the telescopic cylinder is powered on by pressing the control switch, so that the movable plate pulls the traction rope. At this time, the counterweight block will drive the measuring rod to move up along the guide frame. When the measuring rod contacts the bottom of the bridge, the telescopic cylinder continues to extend, and the Z-shaped push plate will move relative to the extension rod while the second reset spring contracts. When the telescopic cylinder is fully extended, the position of the ruler indicated by the side connecting frame is observed to obtain the thickness of the bridge. After the detection is completed, the control switch and the hexagonal plug are pressed. When the hexagonal plug moves downward, the pawl and the ratchet rod are misaligned, and at the same time, the telescopic cylinder is powered off and restored by pressing the control switch. After that, other positions of the bridge can be measured. The operation is simple and the measurement efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the connection between the positioning column and the positioning plate of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the positioning column of the present invention;

[0024] Figure 4 It is a schematic diagram of the connection between the guide frame and the support plate of the present invention;

[0025] Figure 5 It is a schematic diagram of the connection between the transverse connecting frame and the movable plate of the present invention;

[0026] Figure 6 It is a schematic diagram of the connection between the Z-shaped push plate and the extension rod of the present invention;

[0027] Figure 7 It is a schematic diagram of the connection between the ratchet rod and the hexagonal plug rod of the present invention;

[0028] Figure 8 It is a schematic diagram of the connection between the positioning tube and the pawl of the present invention.

[0029] In the figure: 1, horizontal connecting frame; 2, longitudinal connecting frame; 3, guide frame; 4, counterweight; 5, positioning rod; 6, support plate; 7, positioning column; 8, positioning plate; 9, Z-type push plate; 10, telescopic cylinder; 11, upper connecting frame; 12, battery; 13, guide pipe; 14, first sleeve; 15, first return spring; 16, first piston rod; 17, second sleeve; 18, second piston rod; 19, first contact piece; 20, second contact piece; 21, connecting compartment; 22, traction rope; 23, control switch; 24, side connecting frame; 25, ruler; 26, second return spring; 27, fixed pulley; 28, movable plate; 29, extension rod; 30, ratchet rod; 31, hexagonal plug rod; 32, third return spring; 33, positioning tube; 34, pawl; 35, torsion spring. DETAILED DESCRIPTION

[0030] 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.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0032] See also Figures 1 to 8 In an embodiment of the present invention, a road and bridge construction measurement device includes a transverse connecting frame 1, a longitudinal connecting frame 2 is installed at the bottom of one end of the transverse connecting frame 1, a guide frame 3 is installed at the bottom of the longitudinal connecting frame 2, a movable distance measuring member connected to the transverse connecting frame 1 is arranged on the inner side of the guide frame 3, a positioning column 7 located on one side of the longitudinal connecting frame 2 is arranged at the bottom of the transverse connecting frame 1, a positioning plate 8 located above the positioning rod 5 is installed at the bottom of the positioning column 7, and a planar contact member is arranged on the inner side of the positioning column 7.

[0033] In this embodiment: when measuring the thickness of the bridge, the longitudinal connecting frame 2 is first placed on the edge of the bridge, and then the transverse connecting frame 1 is pulled to move the positioning rod 5 to the bottom of the bridge, and at the same time, the positioning plate 8 is moved to the top of the bridge, and then the positioning plate 8 is placed on the bridge deck. At this time, the placement position of the positioning plate 8 is adjusted by the operation of the planar contact member, so that the positioning plate 8 is parallel to the top of the bridge, and then the positioning rod 5 is moved upward along the guide frame 3 by starting the movable distance measuring member, so that the positioning rod 5 contacts the bottom of the bridge, and the thickness of the bridge can be measured by the movable distance measuring member.

[0034] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5The planar contact member includes a second sleeve 17 installed on the inner side of the positioning column 7, a connecting chamber 21 is arranged on the top of the second sleeve 17, a battery 12 is installed on the top of the connecting chamber 21, a second piston rod 18 extending to the inner side of the connecting chamber 21 is inserted into the interior of the second sleeve 17, a first contact piece 19 located on the inner side of the connecting chamber 21 is installed on the top of the second piston rod 18, a second contact piece 20 located above the first contact piece 19 is installed on the inner wall of the connecting chamber 21, and three first sleeves 14 are arranged on the positioning plate 8. Distributed equidistantly along the central axis of the locking plate 8, the first sleeve 14 is internally inserted with a first piston rod 16 that penetrates the locking plate 8, the bottom of the locking plate 8 is provided with a first return spring 15 connected to the first piston rod 16, the top of the first sleeve 14 is provided with a guide tube 13 connected to the bottom of the second sleeve 17, an upper connecting frame 11 is installed on the top of one end of the transverse connecting frame 1 away from the longitudinal connecting frame 2, a control switch 23 is installed on the upper connecting frame 11, and a telescopic cylinder 10 located above the transverse connecting frame 1 is installed on one side of the upper connecting frame 11.

[0035] In this embodiment: when the positioning plate 8 is placed on the top of the bridge, the first piston rod 16 will contact the bridge deck. At this time, the first piston rod 16 will support the equipment, so that the positioning plate 8 can move downward relative to the first piston rod 16, and the first return spring 15 will shrink. During this process, the first sleeve 14 moves with the positioning plate 8, so that the aqueous solution inside the first sleeve 14 enters the second sleeve 17 through the guide tube 13 due to being pressed. When the internal solutions of the three first sleeves 14 on the positioning plate 8 all enter the second sleeve 17, the second piston rod 18 inside the second sleeve 17 will move upward relative to the second sleeve 17 due to the entry of the aqueous solution in the first sleeve 14, so as to make The first contact piece 19 contacts the second contact piece 20, so that the positioning column 7 supplies power to the telescopic cylinder 10. At this time, pressing the control switch 23 will cause the telescopic cylinder 10 to extend. Similarly, if the telescopic cylinder 10 cannot extend when the control switch 23 is pressed, it means that the second contact piece 20 is not in contact with the first contact piece 19. It can be inferred that the aqueous solution in the three first sleeves 14 on the positioning plate 8 has not completely entered the second sleeve 17. At this time, it means that the bottom ends of the first piston rods 16 under the three first sleeves 14 are not in the same plane. The position of the positioning plate 8 needs to be adjusted to improve the accuracy of the equipment detection and prevent the accuracy of the measurement data from being affected by the tilt of the equipment during measurement.

[0036] Please refer to Figure 3 , Figure 5 The second contact piece 20 is electrically connected to the battery 12 through a wire, and the first contact piece 19, the control switch 23, and the telescopic cylinder 10 are connected in series through a wire.

[0037] In this embodiment: by setting this structure, when the second contact piece 20 contacts the first contact piece 19, the battery 12 supplies power to the telescopic cylinder 10, and then the telescopic cylinder 10 can be extended by pressing the control switch 23, thereby controlling the operation timing of the control switch 23.

[0038] Please refer to Figure 2 , Figure 3 The diameter of the first sleeve 14 is equal to that of the second sleeve 17 , the height of the second sleeve 17 is three times that of the first sleeve 14 , and the longest distance between the second contact piece 20 and the first contact piece 19 is equal to the maximum moving distance of the second piston rod 18 .

[0039] In this embodiment: by setting this structure, the first contact piece 19 is in contact with the second contact piece 20 when the aqueous solution inside the first sleeve 14 completely enters the second sleeve 17, so as to improve the docking accuracy of the first contact piece 19 and the second contact piece 20, and at the same time prevent the first piston rod 16 under the three first sleeves 14 from contacting the second contact piece 19 and the second contact piece 20 when they are not in the same plane.

[0040] Please refer to Figure 1 , Figure 2 , Figure 3 , the central axis of the positioning rod 5 coincides with the central axis of the positioning plate 8.

[0041] In this embodiment: by setting this structure, the positioning rod 5 is always aligned with the positioning plate 8, so that the positioning rod 5 can only move along the central axis of the positioning plate 8, so as to accurately measure the distance between the first piston rod 16 and the positioning rod 5.

[0042] Please refer to Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8The movable distance measuring part includes a guide frame 3 installed at the bottom of the longitudinal connecting frame 2, a counterweight block 4 is slidably connected to the inner side of the guide frame 3, a support plate 6 is installed at the bottom of the counterweight block 4, a positioning rod 5 is installed on the support plate 6 and is located below the positioning plate 8, the output end of the telescopic cylinder 10 is connected to the Z-shaped push plate 9, the top of the counterweight block 4 is connected to the traction rope 22, and a fixed pulley 27 for guiding and limiting the traction rope 22 is provided on the inner side of the transverse connecting frame 1, and a movable plate 28 slidably connected to the transverse connecting frame 1 is provided at one end of the traction rope 22, and a ruler 25 located on the outside of the transverse connecting frame 1 is provided on both sides of the movable plate 28, and side connecting frames 24 are installed on both sides of the transverse connecting frame 1, and the ruler 25 penetrates the side connecting frame 24 An extension rod 29 is installed on the side of the movable plate 28 away from the traction rope 22, and the bottom end of the Z-shaped pushing plate 9 is sleeved on the extension rod 29. The bottom end of the Z-shaped pushing plate 9 is provided with a second return spring 26 connected to the end of the extension rod 29 away from the movable plate 28. A ratchet rod 30 is installed on the side of the ruler 25 away from the transverse connecting frame 1. A hexagonal plug rod 31 is inserted on the side of the side connecting frame 24 away from the transverse connecting frame 1. A third return spring 32 connected to the hexagonal plug rod 31 is provided on the top of the side connecting frame 24. A positioning tube 33 is fixedly connected to the hexagonal plug rod 31. The outer side of the positioning tube 33 is rotatably connected to a ratchet pawl 34 meshing with the ratchet rod 30, and a torsion spring 35 is clamped between the ratchet pawl 34 and the positioning tube 33 through a slot.

[0043] In this embodiment, by pressing the control switch 23, the telescopic cylinder 10 is powered on to operate, so that the telescopic cylinder 10 is extended. When the telescopic cylinder 10 is extended, it will drive the Z-shaped push plate 9 to move toward the side away from the fixed pulley 27. At this time, the Z-shaped push plate 9 drives the movable plate 28 to move through the ruler 25 and the extension rod 29, so that the movable plate 28 pulls the traction rope 22. At this time, the counterweight 4 will drive the positioning rod 5 to move up along the guide frame 3. In this process, the ratchet rod 30 moves synchronously with the ruler 25, and the ratchet rod 30 will swing the ratchet pawl 34 to make the ratchet pawl 34 swing against the ratchet pawl 34. The gear rod 30 performs one-way limiting. When the measuring rod 5 contacts the bottom of the bridge, the telescopic cylinder 10 continues to extend, and the Z-shaped push plate 9 will move relative to the extension rod 29 while the second reset spring 26 contracts. When the telescopic cylinder 10 is fully extended, the position of the ruler 25 indicated by the side connecting frame 24 is observed to obtain the thickness of the bridge. After the detection is completed, the control switch 23 and the hexagonal plug 31 are pressed. When the hexagonal plug 31 moves downward, the pawl 34 and the ratchet rod 30 are misaligned. At the same time, the telescopic cylinder 10 is powered off and restored by pressing the control switch 23. After that, other positions of the bridge can be measured. The operation is simple and the measurement efficiency is improved.

[0044] Please refer to Figure 5The length of the ruler 25 is equal to the maximum distance from the top of the positioning rod 5 to the bottom of the first piston rod 16 , and the zero scale line on the ruler 25 is aligned with the movable plate 28 .

[0045] In this embodiment: as the ruler 25 moves, the distance between the side connecting frame 24 and the zero scale line of the ruler 25 gradually shortens. When the ruler 25 stops moving, it means that the top of the measuring rod 5 is in contact with the bottom surface of the bridge. At this time, the distance between the side connecting frame 24 and the zero scale line of the ruler 25 is the thickness of the bridge, thereby improving the convenience of measurement.

[0046] Please refer to Figure 5 The transverse connecting frame 1 is provided with sliding grooves matching the two sides of the movable plate 28.

[0047] In this embodiment: this structure is provided to improve the stability of the movement of the movable plate 28. At the same time, the pawl 34 limits the ratchet rod 30 so that the traction rope 22 is always in a straight state after the positioning rod 5 contacts the bottom surface of the bridge, thereby preventing the positioning rod 5 from moving.

[0048] Please refer to Figure 7 , Figure 8 , the maximum contraction distance of the third return spring 32 is greater than the thickness of the ratchet rod 30 .

[0049] In this embodiment, by providing this structure, when the third return spring 32 is fully contracted, the pawl 34 loses its limit on the ratchet rod 30 , so that the ratchet rod 30 moves back to its original position along with the movable plate 28 .

[0050] In combination with the above-mentioned road and bridge construction measurement device, a road and bridge construction measurement method is provided below, which specifically includes the following steps:

[0051] S1: first place the longitudinal connecting frame 2 on the edge of the bridge, then pull the transverse connecting frame 1 to move the positioning rod 5 to the bottom of the bridge, and at the same time move the positioning plate 8 to the top of the bridge;

[0052] S2: When the positioning plate 8 is placed on the top of the bridge, the first piston rod 16 will contact the bridge deck. At this time, the first piston rod 16 will support the equipment, so that the positioning plate 8 can move downward relative to the first piston rod 16, and the first return spring 15 will shrink. In this process, the first sleeve 14 moves with the positioning plate 8, so that the aqueous solution inside the first sleeve 14 enters the second sleeve 17 through the guide tube 13 due to pressure. When the internal solutions of the three first sleeves 14 on the positioning plate 8 all enter the second sleeve 17, the second piston rod 18 inside the second sleeve 17 will move upward relative to the second sleeve 17 due to the entry of the aqueous solution in the first sleeve 14, so as to make the first sleeve 14 move upward relative to the second sleeve 17. The first contact piece 19 contacts the second contact piece 20, so that the positioning column 7 supplies power to the telescopic cylinder 10. At this time, pressing the control switch 23 will cause the telescopic cylinder 10 to extend. Similarly, if the telescopic cylinder 10 cannot extend when the control switch 23 is pressed, it means that the second contact piece 20 is not in contact with the first contact piece 19. It can be inferred that the aqueous solution in the three first sleeves 14 on the positioning plate 8 has not completely entered the second sleeve 17. At this time, it means that the bottom ends of the first piston rods 16 under the three first sleeves 14 are not in the same plane. Then the position of the positioning plate 8 needs to be adjusted to improve the accuracy of the equipment detection and prevent the accuracy of the measurement data from being affected by the tilt of the equipment during measurement.

[0053] S3: By pressing the control switch 23, the telescopic cylinder 10 is powered on to operate, so that the telescopic cylinder 10 is extended. When the telescopic cylinder 10 is extended, it will drive the Z-shaped push plate 9 to move toward the side away from the fixed pulley 27. At this time, the Z-shaped push plate 9 drives the movable plate 28 to move through the ruler 25 and the extension rod 29, so that the movable plate 28 pulls the traction rope 22. At this time, the counterweight 4 will drive the positioning rod 5 to move up along the guide frame 3. In this process, the ratchet rod 30 moves synchronously with the ruler 25, and the ratchet rod 30 will move the ratchet pawl 34 to swing, so that the ratchet pawl 34 is pressed against the ratchet rod 30 is used for one-way limiting. When the measuring rod 5 contacts the bottom of the bridge, the telescopic cylinder 10 continues to extend, and the Z-shaped push plate 9 moves relative to the extension rod 29 while the second reset spring 26 contracts. When the telescopic cylinder 10 is fully extended, the position of the ruler 25 indicated by the side connecting frame 24 is observed to obtain the thickness of the bridge. After the detection is completed, the control switch 23 and the hexagonal plug 31 are pressed. When the hexagonal plug 31 moves downward, the pawl 34 and the ratchet rod 30 are misaligned. At the same time, the control switch 23 is pressed to cut off the power supply of the telescopic cylinder 10 and restore it. After that, other positions of the bridge can be measured. The operation is simple and the measurement efficiency is improved.

[0054] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A road and bridge construction measurement device, comprising a transverse connecting frame (1), characterized in that: A longitudinal connecting frame (2) is mounted at the bottom of one end of the transverse connecting frame (1), a guide frame (3) is mounted at the bottom of the longitudinal connecting frame (2), a movable distance measuring member connected to the transverse connecting frame (1) is arranged on the inner side of the guide frame (3), a positioning column (7) located on one side of the longitudinal connecting frame (2) is arranged at the bottom of the transverse connecting frame (1), a positioning plate (8) located above the positioning rod (5) is mounted at the bottom of the positioning column (7), and a planar contact member is arranged on the inner side of the positioning column (7); The planar contact element comprises a second sleeve (17) mounted on the inner side of the positioning column (7); a connecting chamber (21) is arranged on the top of the second sleeve (17); a storage battery (12) is mounted on the top of the connecting chamber (21); a second piston rod (18) extending to the inner side of the connecting chamber (21) is inserted into the interior of the second sleeve (17); a first contact piece (19) located on the inner side of the connecting chamber (21) is mounted on the top of the second piston rod (18); a second contact piece (20) located above the first contact piece (19) is mounted on the inner wall of the connecting chamber (21); three first sleeves (14) are arranged on the positioning plate (8); the three first sleeves (14) are mounted on the inner side of the connecting chamber (21); ) are equidistantly distributed along the central axis of the locking plate (8); a first piston rod (16) penetrating the locking plate (8) is inserted into the interior of the first sleeve (14); a first return spring (15) connected to the first piston rod (16) is arranged at the bottom of the locking plate (8); a guide tube (13) connected to the bottom of the second sleeve (17) is arranged at the top of the first sleeve (14); an upper connecting frame (11) is installed at the top of one end of the transverse connecting frame (1) away from the longitudinal connecting frame (2); a control switch (23) is installed on the upper connecting frame (11); and a telescopic cylinder (10) located above the transverse connecting frame (1) is installed on one side of the upper connecting frame (11); The second contact piece (20) is electrically connected to the storage battery (12) via a wire, and the first contact piece (19), the control switch (23), and the telescopic cylinder (10) are connected in series via the wire; The diameter of the first sleeve (14) is equal to the diameter of the second sleeve (17), the height of the second sleeve (17) is three times that of the first sleeve (14), and the longest distance between the second contact piece (20) and the first contact piece (19) is equal to the maximum moving distance of the second piston rod (18).

2. A road and bridge construction measurement device according to claim 1, characterized in that: The central axis of the positioning rod (5) coincides with the central axis of the positioning plate (8).

3. A road and bridge construction measurement device according to claim 1, characterized in that: The movable distance measuring member comprises a guide frame (3) mounted on the bottom of the longitudinal connecting frame (2); a counterweight (4) is slidably connected to the inner side of the guide frame (3); a support plate (6) is mounted on the bottom of the counterweight (4); a positioning rod (5) is mounted on the support plate (6) and is located below a positioning plate (8); an output end of the telescopic cylinder (10) is connected to a Z-shaped push plate (9); a traction rope (22) is connected to the top of the counterweight (4); a fixed pulley (27) for guiding and limiting the traction rope (22) is arranged on the inner side of the transverse connecting frame (1); a movable plate (28) slidably connected to the transverse connecting frame (1) is arranged at one end of the traction rope (22); a ruler (25) is arranged on both sides of the movable plate (28) and is located outside the transverse connecting frame (1); side connecting frames (24) are mounted on both sides of the transverse connecting frame (1); the ruler (25) passes through the side connecting frames (24). The movable plate (28) is provided with an extension rod (29) on the side away from the traction rope (22), the bottom end of the Z-shaped push plate (9) is sleeved on the extension rod (29), the bottom end of the Z-shaped push plate (9) is provided with a second return spring (26) connected to the end of the extension rod (29) away from the movable plate (28), the ruler (25) is provided with a ratchet rod (30) on the side away from the transverse connecting frame (1), and the side connecting frame (24) is provided with a second return spring (26) connected to the end of the extension rod (29) away from the movable plate (28). A hexagonal plug rod (31) is inserted into one side of the connecting frame (1); a third return spring (32) connected to the hexagonal plug rod (31) is arranged on the top of the side connecting frame (24); a positioning tube (33) is fixedly connected to the hexagonal plug rod (31); a ratchet (34) meshing with the ratchet rod (30) is rotatably connected to the outer side of the positioning tube (33); a torsion spring (35) is clamped between the ratchet (34) and the positioning tube (33) via a clamping groove.

4. A road and bridge construction measurement device according to claim 3, characterized in that: The length of the ruler (25) is equal to the maximum distance from the top of the positioning rod (5) to the bottom of the first piston rod (16), and the zero scale line on the ruler (25) is aligned with the movable plate (28).

5. A road and bridge construction measurement device according to claim 3, characterized in that: The transverse connecting frame (1) is provided with sliding grooves matching the two sides of the movable plate (28).

6. A road and bridge construction measurement device according to claim 3, characterized in that: The maximum contraction distance of the third return spring (32) is greater than the thickness of the ratchet rod (30).

7. A road and bridge construction measurement method, characterized in that: A road and bridge construction measurement device according to any one of claims 1 to 6 is used, comprising the following steps: S1: firstly place the longitudinal connecting frame (2) on the edge of the bridge, then pull the transverse connecting frame (1) so that the positioning rod (5) moves to the bottom of the bridge, and at the same time moves the positioning plate (8) to the top of the bridge; S2: placing the positioning plate (8) on the bridge deck, and adjusting the placement position of the positioning plate (8) by operating the plane contact member, so that the positioning plate (8) is in a parallel state with the top of the bridge; S3: The movable distance measuring member is activated to move the measuring rod (5) upward along the guide frame (3), so that the measuring rod (5) contacts the bottom of the bridge. At this time, the thickness of the bridge can be measured by the movable distance measuring member.

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