A steel structure displacement measurement device for simultaneous vertical and horizontal monitoring

Abstract

This invention relates to the field of steel structure displacement monitoring technology and discloses a steel structure displacement measuring device for simultaneous vertical and horizontal monitoring. The device includes a door-shaped support frame with a measuring base box slidably connected to it. A level instrument is mounted on the upper end of the measuring base box, and the support frame is fixed to a supporting steel column by a fixing mechanism. A wire storage groove is provided at the lower end of the measuring base box, and a wire storage reel is rotatably connected to the middle of the groove. A spring is installed inside the reel, and a pull rope is wound around it. A wire routing box is fixedly installed on the side of the measuring base box, with a first wire routing hole on the side and a second and third wire routing holes respectively. This invention has the advantage of being able to perform more comprehensive point sampling and calculation for tall steel structures, thereby improving the accuracy of level instrument monitoring of steel frame structure displacement and solving the problem of traditional level instruments in performing more comprehensive point sampling of steel frame structures.

Description

Technical Field

[0001] This invention relates to the field of steel structure displacement monitoring technology, specifically a steel structure displacement measuring device that simultaneously monitors vertical and horizontal displacement. Background Technology

[0002] Steel structure displacement monitoring is a core technology that measures and analyzes the spatial position changes of a structure under the influence of loads, temperature, and foundation settlement. It serves to ensure structural safety, verify designs, and guide construction and operation. It can play a role in ensuring structural safety, providing early warning of risks, and preventing component instability and joint failure caused by excessive displacement.

[0003] In steel structure measurement devices, the use of a level is a common method. It offers high measurement accuracy, relatively simple operation, and low cost. During steel structure monitoring, the level calculates the height of a node by establishing a horizontal line of sight and determining the height difference between two points on the ground. This height is then compared with the initial position to determine the degree of deformation. However, the level's measuring rod is often too short. When measuring large factory steel structures, the rod is often insufficient. If a longer rod is used, the human error caused by personnel during support will increase. Furthermore, the tripod used in traditional levels often has limited height, making it impossible to take measurements at higher locations when measuring large steel structures. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a steel structure displacement measurement device that simultaneously monitors vertical and horizontal displacement. It has the advantage of being able to perform more comprehensive point sampling and measurement on tall steel structures, thereby improving the accuracy of level instruments when monitoring the displacement of steel frame structures. This solves the problem of traditional level instruments in performing more comprehensive point sampling on steel frame structures.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: A steel structure displacement measuring device for simultaneous vertical and horizontal monitoring includes a U-shaped support frame. A measuring base box is slidably connected to the support frame. A level is installed at the upper end of the measuring base box, and the support frame is fixed to a supporting steel column by a fixing mechanism. A wire storage groove is opened at the lower end of the measuring base box. A wire storage reel is rotatably connected to the middle position of the wire storage groove. A slot is opened in the middle position of the wire storage reel, and a spring for tightening the wire storage reel and fixedly connected to the measuring base box is installed inside. A pull rope is wound on the wire storage reel. A wire routing box is fixedly installed on the side of the measuring base box. A first wire routing hole communicating with the wire storage groove is provided on the side of the measuring base box. A second wire routing hole and a third wire routing hole are respectively provided on the wire routing box. A wire routing reel is rotatably connected to the middle position of the wire routing box. An encoder is fixedly installed on the wire routing box, and the output shaft of the encoder is coaxially fixedly connected to the wire routing reel.

[0006] Preferably, the level is fixedly mounted on the measuring base box.

[0007] Preferably, a leveling mechanism is fixedly installed on the rotating measuring base box, and the level is installed on the leveling mechanism.

[0008] Preferably, the leveling mechanism includes a leveling bracket, which is fixedly installed on the measuring base box. The leveling bracket is L-shaped, and a first adjusting gear is rotatably connected to the horizontal section of the leveling bracket. A ring-shaped first adjusting frame is rotatably connected to the leveling bracket. The lower end of the first adjusting frame is machined with teeth that mesh with the first adjusting gear. An adjusting platform is rotatably connected to the middle of the first adjusting frame. A second adjusting frame is fixedly installed at the lower end of the adjusting platform. The lower end of the second adjusting frame is meshed with a second adjusting gear that meshes with the first adjusting frame.

[0009] Preferably, a rope guide mechanism is provided on the side of the level body. The rope guide mechanism includes a laser emitter, which is fixedly installed on the side of the level body. A pointing plate is rotatably installed on the side of the laser emitter. Pointing gears are symmetrically meshed on the pointing plate. A pointing rod is fixedly installed on each pointing gear. A pointing spring is fixedly installed between the ends of the pointing rods away from the pointing plate. A rope guide rod is fixedly installed on the other end of the pointing rod. The rope guide rods on the upper and lower sides are in contact with each other. A slot is opened in the middle of the rope guide rod. The slots on the two rope guide rods together form a ring.

[0010] Preferably, a protractor is provided on the side of the laser emitter. The protractor has an angle scale. The end of the protractor facing the laser emitter's emission port is acute-angled. The protractor can be rotatably mounted on the laser emitter, and the rotatable connection is the same as that of the protractor. The end of the protractor without scale is machined with a threaded hole.

[0011] Preferably, the guide roller is rotatably mounted on the guide plate. The guide roller is used to guide and protect the pull rope as it moves to the middle groove of the guide rod, so as to avoid wear on the pull rope.

[0012] Preferably, the fixing mechanism includes a sliding plate, a clamping plate, and a clamping screw. The sliding plate is slidably connected to one side of the two sides of the support frame, the clamping screw is threadedly connected to the sliding plate, and the end of the clamping screw is rotatably connected to the clamping plate.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a steel structure displacement measuring device for simultaneous vertical and horizontal monitoring, which has the following beneficial effects: This vertical and horizontal synchronous monitoring steel structure displacement measuring device, by fitting the support frame 1 onto the designated position on the support steel column, makes the fixed position on the support frame correspond one-to-one with the position of the measured node, helps to set multiple node positions for the support column in the steel frame structure and set the corresponding monitoring positions, realizing multi-segment accurate monitoring. At the same time, the leveling mechanism is used to quickly adjust the level to a near-horizontal state for deformed or tilted support steel columns.

[0014] 2. This steel structure displacement measuring device, which monitors vertical and horizontal displacement simultaneously, obtains the distance the pull rope is pulled out by winding a pull rope in the wire storage reel of the wire storage trough and reading the rotation data of the wire storage reel by the encoder and combining it with its diameter. This solves the problem of the encoding parameters changing under different environments due to the problem of the pull rope winding.

[0015] 3. This vertical and horizontal synchronous monitoring steel structure displacement measuring device emits a horizontal laser through a laser emitter. The horizontal laser beam is horizontal, and the length of the rope at the point where the horizontal laser falls and the length of the rope at the initial node are measured respectively. At the same time, the angle between the horizontal laser and the rope at the initial node position is measured, and the distance of the deviation is measured by using the law of cosines. Since it is not convenient to place a ruler in many positions of the steel frame structure, the above method can determine the angle and distance of the deviation without the need for a ruler.

[0016] 4. The steel structure displacement measuring device that monitors vertical and horizontal displacement simultaneously uses a protractor set on the side of the laser emitter. The protractor has an angle scale, and the end of the protractor facing the laser emitter's emission port is acute-angled, which facilitates angle measurement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the present invention; Figure 2 For the present invention Figure 1A magnified view of the structure at point A in the middle; Figure 3 For the present invention Figure 1 A magnified schematic diagram of the structure at point B in the middle; Figure 4 This is a schematic diagram of the overall structure of the second embodiment of the present invention; Figure 5 This is a schematic diagram of the overall structure from another perspective of the second embodiment of the present invention; Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point C in the middle; Figure 7 For the present invention Figure 5 A magnified schematic diagram of the structure at point D in the middle; Figure 8 This is a schematic diagram of the wiring box in this invention; Figure 9 This is a schematic diagram of the installation of the wire storage reel 22 in this invention.

[0018] In the diagram: 1. Support frame; 2. Measuring base box; 21. Cable storage trough; 22. Cable storage reel; 221. Pull rope; 23. Spring; 24. Cable routing box; 25. First cable routing hole; 26. Second cable routing hole; 27. Third cable routing hole; 28. Cable routing reel; 29. ​​Encoder; 3. Level; 4. Fixing mechanism; 41. Sliding plate; 42. Clamping plate; 43. Clamping screw; 5. Leveling mechanism; 51. Leveling bracket; 52. First adjusting gear; 53. First adjusting frame; 54. Adjusting platform; 55. Second adjusting frame; 56. Second adjusting gear; 6. Pull rope guide mechanism; 61. Laser emitter; 62. Pointing plate; 63. Pointing gear; 64. Pointing rod; 65. Pointing spring; 66. Pull rope guide rod; 67. Protractor; 68. Guide roller. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] In addition, a fixed connection refers to a connection in which parts or components are fixed and there is no relative movement; a transmission connection refers to a connection in which mechanical motion or torque is transmitted to other working parts through a transmission component; a sliding connection refers to a connection in which two objects are in contact but not fixed and can slide relative to each other; and a rotational connection refers to a connection in which two objects are in contact but not fixed and can rotate relative to each other.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In measuring tall steel structures, traditional levels often suffer from limitations in height adjustment due to the fixed supports and insufficient length of the leveling rod. This makes it difficult to measure tall steel structures. However, steel structures require supporting steel columns at the lower end to support their main structure. Therefore: like Figures 1 to 9 As shown, the present invention provides a steel structure displacement measuring device for simultaneous vertical and horizontal monitoring, including a portal-shaped support frame 1, a measuring base box 2 slidably connected to the support frame 1, a level 3 installed at the upper end of the measuring base box 2, and the support frame 1 fixed to the supporting steel column by a fixing mechanism 4. During the measurement of the main body of the steel structure using this steel structure displacement measuring device, the level instrument 3 can be fixedly installed on the support frame 1. The support frame 1 is fitted onto the designated position on the support steel column. To improve measurement accuracy, records and markings should be made to ensure a one-to-one correspondence between the fixed position on the support frame 1 and the position of the measured node. This guarantees stable and accurate data. The level instrument 3 is rotated to align with the node to be measured. Then, the level instrument 3's built-in angle screw feet are adjusted to level it, thus centering the bubble in the circular level. However, it should be noted that if the overall deformation of the support steel column is large or the support steel column itself is tilted, the adjustment capability of the angle screw feet on the level instrument 3 is often limited. Figure 4 and Figure 5 As shown, a leveling mechanism 5 can be fixedly installed on the measuring base box 2, and the level instrument 3 can be installed on the leveling mechanism 5. The leveling mechanism 5 can be used to quickly adjust the level instrument 3 to a near-horizontal state. Then, the angular spiral support on the level instrument 3 can be used to adjust the middle bubble of the circular level on the level instrument 3 to the middle position. Then, the corresponding node position can be observed through the level instrument 3 to observe its displacement change and determine the degree of deformation of the steel frame structure.

[0024] Using the aforementioned technical means, multiple node positions can be set using the supports in the steel frame structure, and corresponding monitoring positions can be configured to achieve precise monitoring of multiple segments.

[0025] like Figure 4 and Figure 5 As shown, the leveling mechanism 5 includes a leveling bracket 51, which is fixedly installed on the measuring base box 2. The leveling bracket 51 is L-shaped. A first adjusting gear 52 is rotatably connected to the horizontal section of the leveling bracket 51. A ring-shaped first adjusting frame 53 is rotatably connected to the leveling bracket 51. The lower end of the first adjusting frame 53 is machined with teeth that mesh with the first adjusting gear 52. An adjusting platform 54 is rotatably connected to the middle of the first adjusting frame 53. A second adjusting frame 55 is fixedly installed at the lower end of the adjusting platform 54. A second adjusting gear 56 that meshes with the first adjusting frame 53 is engaged at the lower end of the second adjusting frame 55.

[0026] During the adjustment of the level instrument 3's horizontal position via the leveling mechanism 5, the first adjusting frame 53 and the second adjusting frame 55 are rotated by rotating the first adjusting gear 52 and the second adjusting gear 56, thereby quickly adjusting the position of the adjusting platform 54 to be close to a horizontal state. The first adjusting frame 53 and the second adjusting frame 55 share the same center during rotation, which allows the adjusting platform to be leveled on a spherical surface during the leveling process, thus improving the leveling accuracy. At the same time, a silicone damping ring is rotatably fitted at the rotational connection between the first adjusting gear 52 and the leveling bracket 51, and at the rotational connection between the second adjusting gear 56 and the first adjusting frame 53. The silicone damping ring is fixedly connected to the leveling bracket 51 and the first adjusting frame 53, respectively. The diameters of the first adjusting gear 52 and the second adjusting gear 56 are set to be relatively small, so that the silicone damping ring can apply greater resistance to the rotation of the first adjusting frame 53 and the second adjusting frame 55, preventing them from changing position due to external forces.

[0027] In the process of measuring steel frame structures, in addition to measuring the vertical movement of the steel structure, it is also necessary to measure the horizontal displacement of the steel frame structure. A wire displacement measuring instrument can be used to move and measure the length of individual components on the steel frame structure. Wire displacement measuring instruments have the advantages of low price, high measurement accuracy, and applicability to various environments. However, in traditional wire displacement measuring instruments, the wire release ring is also the wire storage ring. During the wire release process, in order to wind as much wire as possible on the wire release ring, the wire is wound in a reciprocating spiral shape on the wire storage ring. This can easily cause deviations during the wire release process, requiring parameter calibration in the encoder. However, the parameter calibration is affected by temperature, humidity, and oil contamination, which can easily lead to inaccuracies in the measurement process of the wire displacement measuring instrument.

[0028] like Figures 1 to 9As shown, a wire storage groove 21 is provided at the lower end of the measuring base box 2. A wire storage reel 222 is rotatably connected to the middle position of the wire storage groove 21. A slot is provided in the middle position of the wire storage reel 222, and a spring 23 is provided inside for tightening the wire storage reel 222 and fixedly connected to the measuring base box 2. A pull rope 221 is wound on the wire storage reel 22. A cable routing box 24 is fixedly installed on the side of the measuring base box 2. A first cable routing hole 25 communicating with the wire storage groove 21 is provided on the side of the measuring base box 2. A second cable routing hole 26 and a third cable routing hole 27 are respectively machined on the cable routing box 24. A cable routing reel 28 is rotatably connected to the middle position of the cable routing box 24. An encoder 29 is fixedly installed on the cable routing box 24. The output shaft of the encoder 29 is coaxially fixedly connected to the cable routing reel 28. During use, the pull wire is led out from the wire storage reel 222. The cable 221 passes through the first cable routing hole 25 and the second cable routing hole 26, and contacts the outside of the cable routing reel 28. Finally, it exits through the third cable routing hole 27. During the measurement process, the encoder 29 reads the rotation data of the cable routing reel 28 and combines it with its diameter to obtain the distance that the cable 221 is pulled out, thereby obtaining the distance data that needs to be measured. This ensures that the length of the cable 221 read by the encoder 29 is the actual length of the cable 221. At the same time, setting the second cable routing hole 26 and the third cable routing hole 27 on the same side of the cable box 24 increases the contact area between the cable 221 and the cable routing reel 28, preventing slippage between the cable 221 and the cable routing reel 28 and improving the measurement accuracy. The above technical solution can solve the problem of the encoding parameters changing under different environments due to the cable entanglement problem.

[0029] A pull rope guide mechanism 6 is provided on the side of the level instrument 3 body to control the direction of movement of the pull rope 221. The pull rope guide mechanism 6 includes a laser emitter 61, which is fixedly installed on the side of the level instrument 3 body. A pointing plate 62 is rotatably installed on the side of the laser emitter 61. Pointing gears 63 are symmetrically meshed on the pointing plate 62. A pointing rod 64 is fixedly installed on each pointing gear 63. A pointing spring 65 is fixedly installed between the ends of the pointing rods 64 away from the pointing plate 62. A pull rope guide rod 66 is fixedly installed on the other end of the pointing rod 64. The pull rope guide rods 66 on the upper and lower sides are in contact with each other. A slot is opened in the middle of the pull rope guide rod 66. The slots on the two pull rope guide rods 66 together form a ring.

[0030] like Figures 1 to 9As shown, after pulling the rope 221 out of the third wiring hole 27, the rope 221 is threaded through the side of the rope guide rod 66 into the slot between the two rope guide rods 66. The ends of the rope guide rods 66 are raised, which facilitates the above operation. At the same time, under the pressing action of the pointing spring 65, the rope 221 is constrained in the slots of the two rope guide rods 66. Due to the meshing action of the two pointing gears 63, the middle slot of the rope guide rod 66 is always in the middle position of the pointing rod 64. During the measurement process, the rope 221 is pulled to the desired position. The location of the measured node is determined, and the length data is calculated and compared with the initial data. A horizontal laser beam is emitted from the laser emitter 61, and the length of the pull rope 221 at the point where the horizontal laser beam lands is measured, as well as the length of the pull rope 221 at the initial node location. Simultaneously, the angle between the horizontal laser beam and the pull rope 221 at the initial node location is measured, and the deviation distance is measured using the cosine theorem. Since it is inconvenient to place a ruler in many locations on the steel frame structure, the above method allows the angle and distance of the deviation to be determined without a ruler. For convenient angle reading, a protractor 67 is installed on the side of the laser emitter 61. The protractor 67 has angle markings, and the end of the pointing plate 62 facing the laser emitter 61's emission port is acute-angled, facilitating angle measurement. The protractor 67 can be rotatably mounted on the laser emitter 61, with the rotatable connection point being the same as that of the pointing plate 62. The end of the protractor 67 without markings has a threaded hole, and the laser emitter 61 has evenly spaced threaded holes circumferentially, allowing the protractor 67 to be fixed in place. By fixing the position of the threaded hole at different locations, the range of angles that can be measured can be effectively increased without increasing the area of ​​the protractor 67. This allows for accurate measurement data even when measuring components and nodes that are initially tilted during installation. The guide roller 68 is rotatably mounted on the guide plate 62. During the process of moving the pull wire to the slot in the middle of the guide rod, the pull wire 221 can be pre-passed through the guide roller 68. This effectively prevents the pull wire 221 from being rubbed during the measurement process, improving the smoothness of the measurement.

[0031] like Figures 1 to 9As shown, the fixing mechanism 4 includes a sliding plate 41, a clamping plate 42, and a clamping screw 43. The sliding plate 41 is slidably connected to one side of the two sides of the support frame 1. The clamping screw 43 is threadedly connected to the sliding plate 41. The end of the clamping screw 43 is rotatably connected to the clamping plate 42. The support steel column of the large steel frame structure is generally a channel steel structure. When the support frame 1 is fixedly installed on the support steel column using the fixing mechanism, the support steel column is clamped at one corner of the support frame 1. Then, the clamping plate 42 is aligned with the middle groove of the support steel column. Note that when using the clamping plate 42, the width of the clamping plate 42 should be basically the same as the width of the middle groove of the support steel column. Then, the clamping screw 43 is rotated to clamp the support steel column, thereby fixing the support frame 1 on the support steel column.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Working principle: The support frame 1 is fitted onto the designated position on the support steel column, ensuring that the fixed position on the support frame 1 corresponds one-to-one with the position of the measured node. This guarantees the stability and accuracy of the data. During use, the pull wire is led out from the wire storage reel 222, passes through the first wire routing hole 25 and the second wire routing hole 26, contacts the outside of the wire routing reel 28, and finally exits from the third wire routing hole 27. During the measurement process, the encoder 29 reads the rotation data of the wire routing reel 28 and combines it with its diameter to obtain the distance that the pull wire 221 is pulled out, thereby obtaining the distance data to be measured. This ensures that the encoder 29 reads the pull wire 221 accurately. The length of 1 is the actual length of the pull rope 221. At the same time, the second wiring hole 26 and the third wiring hole 27 are set on the same side of the wiring box 24. This increases the contact area between the pull rope 221 and the wiring reel 28, prevents slippage between the pull rope 221 and the wiring reel 28, and improves the measurement accuracy. A horizontal laser is emitted by the laser emitter 61. The horizontal laser beam is horizontal. The length of the pull rope 221 at the point where the horizontal laser falls and the length of the pull rope 221 at the initial node are measured respectively. At the same time, the angle between the horizontal laser and the pull rope 221 at the initial node position is measured, and the distance of the deviation is measured by the cosine theorem.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel structure displacement measuring device for simultaneous vertical and horizontal monitoring, comprising a portal-shaped support frame (1), wherein a measuring base box (2) is slidably connected to the support frame (1), characterized in that: A level (3) is installed at the upper end of the measuring box (2), and the support frame (1) is fixed on the support steel column by the fixing mechanism (4). A wire storage groove (21) is opened at the lower end of the measuring box (2), and a wire storage disk (22) is rotatably connected to the middle position of the wire storage groove (21). A slot is provided in the middle of the wire storage reel (22), and a spring (23) is provided inside for tightening the wire storage reel (22) and fixedly connected to the measuring base box (2). A pull rope (221) is wound on the wire storage reel (22), and a cable tray (24) is fixedly installed on the side of the measuring base box (2). The side of the measuring box (2) is provided with a first wiring hole (25) that communicates with the wire storage groove (21). The wiring box (24) is provided with a second wiring hole (26) and a third wiring hole (27). The wiring box (24) is rotatably connected to the middle position of the wiring box (24). An encoder (29) is fixedly installed on the wiring box (24). The output shaft of the encoder (29) is coaxially fixedly connected to the wiring box (28).

2. The steel structure displacement measuring device for simultaneous vertical and horizontal monitoring according to claim 1, characterized in that: The level (3) is fixedly installed on the measuring base box (2).

3. The steel structure displacement measuring device for simultaneous vertical and horizontal monitoring according to claim 1, characterized in that: A leveling mechanism (5) is fixedly installed on the rotating measuring base box (2), and the level (3) is installed on the leveling mechanism (5).

4. The steel structure displacement measuring device for simultaneous vertical and horizontal monitoring according to claim 3, characterized in that: The leveling mechanism (5) includes a leveling bracket (51), which is fixedly installed on the measuring base box (2). The leveling bracket (51) is L-shaped. A first adjusting gear (52) is rotatably connected to the horizontal section of the leveling bracket (51). A ring-shaped first adjusting frame (53) is rotatably connected to the leveling bracket (51). The lower end of the first adjusting frame (53) is machined with teeth that mesh with the first adjusting gear (52). An adjusting platform (54) is rotatably connected to the middle of the first adjusting frame (53). A second adjusting frame (55) is fixedly installed at the lower end of the adjusting platform (54). A second adjusting gear (56) meshes with the first adjusting frame (53) at the lower end of the second adjusting frame (55).

5. A steel structure displacement measuring device for simultaneous vertical and horizontal monitoring according to claim 2 or 4, characterized in that: A rope guide mechanism (6) is provided on the side of the level instrument (3). The rope guide mechanism (6) includes a laser emitter (61). The laser emitter (61) is fixedly installed on the side of the level instrument (3). A pointing plate (62) is rotatably installed on the side of the laser emitter (61). Pointing gears (63) are symmetrically meshed on the pointing plate (62). A pointing rod (64) is fixedly installed on each pointing gear (63). A pointing spring (65) is fixedly installed between the ends of the pointing rods (64) away from the pointing plate (62). A rope guide rod (66) is fixedly installed on the other end of the pointing rod (64). The rope guide rods (66) on the upper and lower sides are in contact with each other. A slot is opened in the middle of the rope guide rod (66). The slots on the two rope guide rods (66) together form a ring.

6. A steel structure displacement measuring device for simultaneous vertical and horizontal monitoring according to claim 5, characterized in that: A protractor (67) is provided on the side of the laser emitter (61). An angle scale is provided on the protractor (67). The end of the pointer plate (62) facing the emission port of the laser emitter (61) is acute. The protractor (67) can be rotatably set on the laser emitter (61), and the rotatable connection is the same as that of the pointer plate (62). The end of the pointer plate (67) without scale is machined with a threaded hole.

7. A steel structure displacement measuring device for simultaneous vertical and horizontal monitoring according to claim 6, characterized in that: The guide roller (68) is rotatably mounted on the guide plate (62). The guide roller (68) is used to guide and protect the pull rope during the process of the pull rope moving to the middle groove of the guide rod (66) to avoid wear of the pull rope.

8. The steel structure displacement measuring device for simultaneous vertical and horizontal monitoring according to claim 1, characterized in that: The fixing mechanism (4) includes a sliding plate (41), a clamping plate (42) and a clamping screw (43). The sliding plate (41) is slidably connected to one side of the two sides of the support frame (1). The clamping screw (43) is threadedly connected to the sliding plate (41). The end of the clamping screw (43) is rotatably connected to the clamping plate (42).

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