A device for measuring cross-sectional dimensions of high beams

Abstract

The present invention specifically relates to a device for measuring the cross-sectional dimensions of a high beam, and relates to the technical field of high beam construction detection. The device comprises a T-shaped vertical pole, wherein the lower end of the T-shaped vertical pole is detachably connected downwardly with an extension pole, a middle vertical pole and a lower vertical pole in sequence, and a cross bar is integrally arranged on the top of the T-shaped vertical pole. A fixed cutter head and a freely slidable sliding cutter head are respectively arranged on the left and right sides of the cross bar of the T-shaped vertical pole to clamp the two sides of the beam, and a scale is used as a reference to intuitively judge the sagging length of a flexible steel wire rope that pulls the sliding cutter head to slide, so as to determine the width of the beam, and the sliding cutter head can be reset under the action of a tensioning spring, so as to quickly leave the beam surface and transfer to the next measuring position; a laser rangefinder whose position can be magnetically adjusted on a horizontal turntable is also used to respectively detect the height distance between a floor slab and the bottom of a beam body, and the net height of the beam can be obtained by subtracting the corresponding floor slab height distance from the beam body height distance, and the device is simple and convenient to use.

Description

Technical Field

[0001] The present invention specifically relates to a device for measuring the cross-sectional dimensions of a high beam, and relates to the technical field of high beam construction detection. Background Art

[0002] In the field of construction engineering, beams are the main load-bearing components of buildings. Whether the size of the beam cross-section meets the design requirements is not only related to whether the construction quality is qualified, but also directly related to the building's load-bearing safety and the safety of life and property. In addition, when conducting safety appraisal and evaluation of buildings, the cross-sectional size of the beam is a must-check parameter, which is the basis for drawing building plans, structural review, establishing calculation models, checking load-bearing capacity and safety appraisal rating. Since the building beams are at a certain height from the floor, the measurement of the cross-sectional size of the beam is usually done by surveyors standing on a ladder and measuring the height and width of the beam with a steel tape measure. For beams on higher floors or in the air, long ladders, gantry frames or aerial vehicles are required for inspection. A lot of time and money are required to set up scaffolding, drive and operate aerial vehicles, etc.; in addition, high-altitude operations are very dangerous, and high requirements are placed on the quality and safety management of aerial workers. Especially for buildings that have been put into use, setting up a gantry will affect the normal use of the house, and aerial vehicles cannot be driven into each floor to work. Moreover, during the quality inspection and appraisal of the project, a certain number of beams need to be randomly sampled on each floor for cross-sectional dimension measurement. The number of inspections is large. If a gantry or aerial platform is used to measure the cross-sectional dimensions of high-altitude beams, the workload will be large, the cost will be high, and the use will be inconvenient. Therefore, it is necessary to propose a high-altitude beam cross-sectional dimension measuring device to improve the above-mentioned problem. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a portable high-altitude beam cross-sectional dimension measuring device, which does not require surveyors to stand on ladders, gantry frames or aerial platforms to work at high altitudes. Only one person standing on the floor can easily complete the high-altitude beam cross-sectional dimension measurement, and uses laser ranging and steel ruler to measure the beam height and width respectively. The measurement accuracy can meet the requirements of engineering applications, so as to solve the problems mentioned in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a device for measuring the cross-sectional dimensions of a high beam, comprising a T-shaped vertical pole, the lower end of which is detachably connected downwardly with an extension pole, a middle vertical pole and a lower vertical pole in sequence, a cross bar is integrally provided on the top of the T-shaped vertical pole, a sliding cutter head is provided on the movable sleeve on the right side of the cross bar, and the sliding cutter head can slide freely left and right along the cross bar, a tensioning spring is fixedly provided on the left end of the cross bar, and is connected to one side of the sliding cutter head through the tensioning spring, and a flexible steel wire rope is traction-connected to the other side of the sliding cutter head, and an upwardly protruding fixed cutter head is integrally provided on the left side of the cross bar for contacting the left side of the beam A beam clamping groove is provided at the right side of the fixed cutter head and the upper side of the cross bar, the sliding cutter head is movably located at the right side of the beam clamping groove for tightening the right side of the beam, an upper pulley is rotatably installed on the upper side of the T-shaped vertical pole for downward hanging around the turning flexible steel wire rope, a scale corresponding to the flexible steel wire rope is fixed on the middle vertical pole, and the beam width is determined by pulling the flexible steel wire rope downward with the scale as a reference, a horizontal turntable, and the horizontal turntable is detachably installed between the middle vertical pole and the lower vertical pole, and a plurality of laser rangefinders staggered with the cross bar can be detachably connected to the upper side of the horizontal turntable, and each laser rangefinder is arranged upward.

[0005] A further improvement based on the above technology is that a clamping and positioning assembly for clamping the two side surfaces of the beam is provided on the upper side of the cross bar, and the clamping and positioning assembly includes a left vertical plate and a right vertical plate, wherein the left vertical plate is locked and installed on the upper side of the fixed cutter head, and the right vertical plate is locked on the right end of the cross bar, and relatively small telescopic rods are installed in the middle of the left and right vertical plates, and the telescopic ends of the small telescopic rods are relatively extended and tightened on the left and right sides of the beam.

[0006] A further improvement based on the above technology is that a rubber disc is movably mounted on the telescopic end of the small telescopic rod through a universal ball head rod, and the outer surface of the rubber disc is provided with protective stripes to closely fit the side of the beam.

[0007] A further improvement based on the above technology is that an electromagnetic adsorption plate is horizontally embedded and installed on the upper side of the cross bar, and the electromagnetic adsorption plate is located on the lower side of the beam slot, the sliding cutter head is slidably mounted on the electromagnetic adsorption plate and in contact with the electromagnetic adsorption plate, and the electromagnetic adsorption plate is used to adsorb the bottom surface of the steel beam.

[0008] A further improvement based on the above technology is that a limit block is fixedly provided on the right side of the cross bar for locking the sliding cutter head to slide outward, and the tension generated by the tensioning spring makes the sliding cutter head close to the limit block, and a positioning pointer is fixedly provided in the middle of the flexible steel wire rope, and the positioning pointer is arranged on one side of the ruler.

[0009] A further improvement based on the above technology is that a horizontal plate is integrally provided on the lower side of the middle section upright pole, and a wire reeling assembly for winding up the flexible steel wire rope and a wire clamping assembly for clamping and limiting the flexible steel wire rope are respectively provided on the horizontal plate.

[0010] A further improvement based on the above technology is that the wire retracting and releasing assembly includes a lower pulley and a winding wheel installed on the transverse plate. The lower pulley is located directly below the upper pulley and is used to surround the flexible steel wire rope and guide the flexible steel wire rope to the winding wheel for connection.

[0011] A further improvement based on the above technology is that the wire clamping assembly includes a wire clamping ring sleeved on the flexible steel wire rope and a threaded hole vertically opened in the middle of the cross plate, the threaded hole is threadedly connected with a screw rod, a rotating hand wheel is installed on the top of the screw rod, and the bottom of the screw rod is rotatably connected to the wire clamping ring. The wire clamping ring can adapt to the inner side of the threaded hole under the pull of the screw rod, and allow the flexible steel wire rope to be clamped on the lower edge of the threaded hole.

[0012] A further improvement based on the above technology is that a bubble level is installed on the upper side of the horizontal turntable, a magnet base is installed at the bottom of the laser rangefinder, and is adsorbed and connected to the horizontal turntable through the magnet base, and a laser perforation is provided on the top of the laser rangefinder, and the laser perforation is arranged vertically upward.

[0013] A further improvement based on the above technology is that the T-shaped upright pole, extension pole and middle upright pole are all connected by threaded sleeve joints, and the upper and lower ends of the horizontal turntable are connected to the middle upright pole and the lower upright pole by threaded sleeve joints.

[0014] By adopting the above technical solution, the present invention has the following advantages:

[0015] The invention has an ingenious structure. A fixed cutter head and a freely slidable sliding cutter head are respectively arranged on the left and right sides of the horizontal bar of the T-shaped vertical pole to clamp the two sides of the beam. A scale is used as a reference to intuitively judge the sagging length of the flexible steel wire rope that pulls the sliding cutter head to slide, so as to determine the width of the beam. The sliding cutter head can be reset under the action of a tensioning spring so as to quickly detach from the beam surface and transfer to the next measuring position. Two laser rangefinders with magnetically adjustable positions on a horizontal turntable are used to respectively detect the height distance between the floor slab and the bottom of the beam body. The net height of the beam can be obtained by subtracting the height distance of the beam body from the corresponding floor slab height distance. The invention is simple and convenient to use.

[0016] A bubble level is provided on the horizontal turntable to ensure that the measuring device can be adjusted to a horizontal position, thereby improving the measurement accuracy. A clamping and positioning assembly is detachably provided on the crossbar. The clamping and positioning assembly can not only clamp and fix the entire measuring device on both sides of the beam, without the need to manually lift and support the measuring device, which is convenient for horizontal adjustment and use of the measuring device, but also assists in the use of the above-mentioned sliding cutter head. That is, after the clamping and positioning assembly is clamped on both sides of the beam, the sliding cutter head can be directly pulled to move to the left side, without the need to align the beam on the beam slot while pulling the sliding cutter head, which is much more convenient to use.

[0017] When the above-mentioned horizontal adjustment measuring device is used, since the telescopic ends of the small telescopic rods of the clamping and positioning components are connected to the rubber discs through the universal ball head rods, the rubber discs can adapt to the uneven surfaces on both sides of the beam, and when the rubber discs on both sides are clamped on the beam, the crossbar, T-shaped vertical rod and horizontal turntable can still be finely adjusted to ensure that the device can be in a horizontal position, which is simple and flexible to use;

[0018] Furthermore, an electromagnetic adsorption plate is embedded and installed on the upper side of the crossbar to measure the steel beam. When the two sides of the steel beam are clamped by the clamping and positioning assembly, the electromagnetic adsorption plate can be adsorbed on the bottom surface of the steel beam to further improve the stability of the steel beam. The electromagnetic adsorption plate is also in close contact with the sliding cutter head. After the sliding cutter head is pulled close to the right side of the steel beam, the sliding cutter head generates electromagnetic properties and is always magnetically adsorbed to the right side of the steel beam to improve the contact effect. At this time, the tensioning spring force is not enough to pull it back to its original position, so the distance of the flexible steel wire rope on the scale can be stably and accurately judged.

[0019] A retractable wire assembly for retracting and releasing the flexible steel wire rope and a clamping wire assembly for clamping the flexible steel wire rope are arranged on the horizontal plate of the middle vertical pole. The retractable wire assembly is mainly convenient for the operation of reeling and releasing the flexible steel wire rope so that the sliding cutter head can be simply and quickly attached to the right side of the beam, and the clamping wire assembly can fix the sliding cutter head when it is close to the right side of the beam according to the needs, so as to determine the position of the alignment pointer on the scale to better judge the width of the beam, and when measuring the steel beam, the magnetic attraction effect of the electromagnetic adsorption plate can be combined to realize the double fixation of the sliding cutter head;

[0020] To sum up, the present invention only requires one person standing on the floor to easily complete the measurement of the cross-sectional dimensions of high beams, avoiding the need to carry long ladders, set up gantry frames or operate aerial platforms for measurement, saving time, effort and money. The measuring device has a simple structure and can be disassembled for easy transportation and storage. The measurement accuracy can meet the requirements of engineering use. At the same time, there is no need for climbing operations, thus avoiding the risks of high-altitude operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the horizontal turntable of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the laser rangefinder of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the present invention in use state;

[0026] Figure 5 It is a schematic diagram of the structure of the clamping and positioning assembly and the electromagnetic adsorption plate of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the wire retracting and releasing assembly and the wire clamping assembly of the present invention;

[0028] In the figure: beam slot 100, sliding cutter head 101, limit block 102, T-shaped vertical pole 103, cross bar 104, upper pulley 105, flexible steel wire rope 106, tension spring 107, fixed cutter head 108, alignment pointer 109, extension rod 200, middle vertical pole 300, scale 301, cross plate 302, lower pulley 303, winding wheel 304, wire clamping ring 305, threaded hole 306, screw 307, rotating hand wheel 308, horizontal turntable 400, laser rangefinder 401, magnet base 4011, laser perforator 4012, bubble level 402, lower vertical pole 500, right vertical plate 600, left vertical plate 601, small telescopic rod 602, rubber disc 603, floor slab 701, beam body 702, electromagnetic adsorption plate 800. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods. Embodiment 1

[0030] like Figure 1-6As shown, the present invention provides a technical solution for a device for measuring the cross-sectional dimensions of a beam at a height, comprising a T-shaped upright pole 103, wherein the lower end of the T-shaped upright pole 103 is detachably connected with an extension pole 200, a middle upright pole 300 and a lower upright pole 500 in sequence downwardly, wherein the T-shaped upright pole 103, the extension pole 200 and the middle upright pole 300 are all connected by a threaded sleeve joint to meet the measurement requirements of different heights and enhance the flexibility and portability of the device, wherein a cross bar 104 is integrally provided on the top of the T-shaped upright pole 103, wherein a sliding cutter head 101 is movably sleeved on the right side of the cross bar 104, and the sliding cutter head 101 can slide freely left and right along the cross bar 104, and a tensioning spring 107 is fixedly provided on the left end of the cross bar 104, and the tensioning spring is used to tighten the cross bar 104. 107 is connected to one side of the sliding cutter head 101 to ensure the reset and positioning of the sliding cutter head 101. A limit block 102 is fixed on the right side of the cross bar 104 to clamp the sliding cutter head 101 to slide outward, limit the excessive outward sliding of the sliding cutter head 101, and play a positioning role. The tension generated by the tension spring 107 makes the sliding cutter head 101 close to the limit block 102 and can be reset under the elastic force. After the measurement is completed, the elastic force can quickly drive the sliding cutter head 101 to reset, greatly improving the efficiency and convenience of the measurement, facilitating rapid conversion to the next measurement position, and ensuring the smoothness and speed of the measurement process. A fixed cutter head 108 protruding upward is integrally provided on the left side of the cross bar 104 for The left side of the contact beam plays a role in limiting the left side of the beam. A beam slot 100 is provided at the right side of the fixed blade head 108 and the upper side of the cross bar 104. The sliding blade head 101 is movably located on the right side of the beam slot 100 for tightening the right side of the beam. A flexible steel wire rope 106 is traction-connected to the other side of the sliding blade head 101. An upper pulley 105 for drooping downward around the turning flexible steel wire rope 106 is rotatably installed on the upper side of the T-shaped vertical pole 103. A scale 301 corresponding to the flexible steel wire rope 106 is fixed on the middle vertical pole 300. The displacement of the sliding blade head 101 is reflected on the scale 301 through the flexible steel wire rope 106, that is, by pulling the flexible steel wire rope 106 downward with the scale 301 as a reference. 6 to determine the beam width, and in order to facilitate the determination of the distance when the flexible steel wire rope 106 is displaced downward, a positioning pointer 109 is fixedly provided in the middle of the flexible steel wire rope 106 as a reference point. The positioning pointer 109 is arranged on one side of the scale 301 to intuitively judge the displacement distance of the flexible steel wire rope 106. Therefore, the integrated structure realizes the accurate measurement of the beam width through the combination of the T-shaped vertical pole 103, the horizontal pole 104, the sliding knife head 101, the tensioning spring 107 and the flexible steel wire rope 106. At the same time, the detachable structure of the extension rod 200, the middle vertical pole 300 and the lower vertical pole 500 improves the portability and adaptability of the device, which is suitable for on-site construction personnel to efficiently and accurately measure the beam width in different environments.

[0031] In addition, both upper and lower ends of the horizontal turntable 400 are connected to the middle section pole 300 and the lower section pole 500 through threaded sleeve joints for easy disassembly and assembly. The upper side of the horizontal turntable 400 can be detachably connected to two laser rangefinders 401 staggered from the crossbar 104. Specifically, a magnet base 4011 is installed at the bottom of the laser rangefinder 401, and is adsorbed and connected to the horizontal turntable 400 through the magnet base 4011. The magnet base 4011 provides a flexible installation method, so that the laser rangefinder 401 can be installed on the horizontal turntable 400. Adjust the position to adapt to different measurement scenarios. A laser perforation 4012 is provided on the top of the laser rangefinder 401. The laser perforation 4012 is vertically arranged upward. By using the light speed measurement principle, the laser rangefinder 401 accurately measures the height distance to the floor and the beam by calculating the time difference between laser emission and reception, thereby calculating the net height of the beam. On the horizontal turntable 400, the laser rangefinder 401 can rotate around the horizontal turntable 400 to adjust the position, scan and measure the distance of multiple points, simplifying the traditional measurement process and improving work efficiency.

[0032] The bubble level 402 installed on the horizontal turntable 400 further enhances the measurement accuracy of the device. As a classic and effective level calibration tool, the bubble level can intuitively display whether the measuring device is in a horizontal state, which is crucial to ensure the accuracy of the measurement results. When measuring the beam width or using the laser rangefinder 401 to measure the height, keeping the horizontal turntable 400 in a horizontal state is a prerequisite for obtaining accurate measurement data. The addition of the bubble level 402 ensures the realization of this premise.

[0033] When the above technical solution is used, as shown in the attached Figure 4 As shown, when measuring the cross-sectional dimensions of a high beam, the steps are as follows:

[0034] Step 1: Adjust the height and vertical calibration of the device

[0035] According to the height of the beam to be measured from the floor, select and splice an appropriate number of extension rods 200 to ensure that when holding the lower vertical rod 500, the upper part of the measuring device can reach the bottom of the beam body 702 to be measured;

[0036] To ensure measurement accuracy, it is necessary to adjust the T-shaped pole 103, the extension pole 200, the middle pole 300 and the lower pole 500 to ensure overall verticality. The specific method is to observe the bubble level 402 on the horizontal turntable 400 and adjust it until the bubble is in the center position, that is, the device pole is in a vertical state.

[0037] Step 2: Width Measurement

[0038] The upper beam slot 100 of the crossbar 104 of the measuring device is clamped to the bottom of the beam body 702 to be measured, and it is pressed tightly to ensure that the left side of the beam body 702 to be measured is tightly fitted with the fixed cutter head 108; the flexible steel wire rope 106 is pulled to make the sliding cutter head 101 close to the right side of the beam body 702. At this time, the moving distance of the steel wire rope 106 on the scale 301 is the distance that the sliding cutter head 101 moves to the right, and the reading is recorded as b2; it is known that the net distance b1 between the limit block 102 and the fixed cutter head 108 is a fixed value, so b1-b2 is the width of the beam body 702 to be measured.

[0039] Step 3: Clearance Height Measurement

[0040] Install and use two laser rangefinders 401, fix them at any position on the horizontal turntable 400 by magnetic attraction, and ensure that one is aimed at the bottom of the floor slab 701 and the other is aimed at the bottom of the beam 702 to be measured. Measure the distance h1 from the horizontal turntable 400 to the bottom of the floor slab 701 and the distance h2 from the horizontal turntable 400 to the bottom of the beam 702. Calculate the difference h1-h2, which is the net height of the beam 702 to be measured.

[0041] Through sophisticated structural design, combined with the flexible connection of the extension rod 200, the coordination of the cross bar 104 and the cutter head, the precise measurement of the laser rangefinder 401, and the calibration function of the bubble level 402, the measuring device achieves efficient and accurate measurement of the cross-sectional dimensions of high beams (including width and clear height), greatly improving the convenience and accuracy of construction measurement.

[0042] Based on the above technical solution, Figure 5As shown, by adding a clamping and positioning component to the crossbar 104, the stability and accuracy of the measurement are further improved. Specifically, the clamping and positioning component is composed of a left vertical plate 601 and a right vertical plate 600, which are respectively locked on the upper side of the fixed cutter head 108 and the right end of the crossbar 104, and act together on the two sides of the beam body 702 to be measured, ensuring firm fixation during measurement and facilitating disassembly and maintenance. The left vertical plate 601 is locked and installed on the upper side of the fixed cutter head 108, and the right vertical plate 600 is locked on the right end of the crossbar 104. Relative small telescopic rods 602 are installed in the middle of the left vertical plate 601 and the right vertical plate 600. The left vertical plate 601 and the right vertical plate 600 extend through the telescopic ends of the relative small telescopic rods 602, and are in close contact with the left and right sides of the beam to be measured, so as to achieve the clamping and positioning of the beam. At this time, the entire device can be fixed on the beam body 702 without manual lifting. Specifically, when clamping, the right vertical plate 60 is generally 0, the telescopic end of the small telescopic rod 602 on the right vertical plate 600 extends to the left, and the fixed blade head 108 is first closely aligned with the left side of the beam, which not only allows space on the right side of the cross bar 104 for the sliding blade head 101 to slide, but also does not need to be deliberately manually operated to align the fixed blade head 108 with the left side of the beam, which is simple and convenient to use; at this time, the beam body 702 can be fastened once between the fixed blade head 108 and the telescopic end of the small telescopic rod 602 of the right vertical plate 600, and in order to increase the clamping force, the telescopic end of the small telescopic rod 602 of the left vertical plate 601 is extended to the right side and pressed against the left side of the beam body 702, and the relative ejection force of the small telescopic rod 602 of the right vertical plate 600 is cooperated to achieve secondary fastening, thereby ensuring that the entire detection device can be clamped and fixed on the beam body 702, thereby improving the stability during the measurement process.

[0043] Furthermore, a rubber disc 603 is movably installed at the telescopic end of the small telescopic rod 602 through a universal ball head rod. The rubber disc 603 provides good buffering and friction to avoid damage to the surface of the beam body and enhance the clamping stability. When the rubber disc 603 is relatively extended and pressed against the left and right sides of the beam through the telescopic end of the small telescopic rod 602, since the small telescopic rod 602 is universally movably connected to the rubber disc 603 through the universal ball head rod, the rubber disc 603 is allowed to be fine-tuned in multiple directions, effectively adapting to the irregularity and unevenness of the beam surface, ensuring that the device can firmly clamp the beam body 702 under any conditions, and after clamping, the entire device can be fine-tuned in level under the action of the universal ball head rod, and the bubble level 402 can be used to adjust the horizontal position, thereby ensuring the horizontal accuracy during measurement, simplifying the operation process, and improving the measurement efficiency. In addition, the outer surface of the rubber disc 603 is provided with protective stripes to frictionally contact with the side of the beam, further increasing the clamping force and improving the stable fitting effect during the measurement process.

[0044] In this embodiment, the sliding blade 101 is made of ferromagnetic material, and an electromagnetic adsorption plate 800 is horizontally embedded and installed on the upper side of the cross bar 104 in order to achieve fast, safe and accurate fixation with metal objects. The electromagnetic adsorption plate uses the electromagnetic principle to generate a magnetic field by powering on to adsorb ferromagnetic materials such as steel. Compared with the traditional mechanical clamping method, this method can provide greater adsorption force and is easier to operate, because adsorption and release can be achieved by simply controlling the on and off of the current. The electromagnetic adsorption plate 800 is located on the lower side of the beam slot 100. The electromagnetic adsorption plate 800 is used to adsorb the bottom surface of the steel beam. The electromagnetic adsorption plate 800 enhances the stabilization effect on the steel beam. That is to say, in this embodiment, not only can the above-mentioned clamping and positioning components be used to clamp the side of the steel beam, but the electromagnetic adsorption plate 800 can also be used to fix the bottom of the steel beam by magnetic attraction. These two fixing effects can greatly improve the stability of the entire measuring device on the steel beam.

[0045] After the sliding cutter head 101 is pulled close to the right side of the steel beam, since the sliding cutter head 101 is slidably mounted on the electromagnetic adsorption plate 800 and contacts the electromagnetic adsorption plate 800, the electromagnetic adsorption plate 800 generates an electromagnetic effect on the sliding cutter head 101, so that the sliding cutter head 101 also has magnetism and can fully achieve magnetic adsorption with the right side of the steel beam, thereby improving the contact effect and ensuring the stability of the measurement. At this time, the elastic force of the tensioning spring 107 is not enough to pull it back to its original position, so the position distance of the flexible steel wire rope 106 on the scale 301 can be stably and accurately determined. At the same time, a controller can be installed on the horizontal turntable 400 to control the operation of the electromagnetic adsorption plate 800 and the small telescopic rod 602.

[0046] In addition, in order to improve the effect of pulling the flexible steel wire rope 106 in the above step 2 to make the sliding cutter head 101 close to the right side of the beam body 702, as shown in FIG. Figure 6 As shown, a horizontal plate 302 is integrally provided at the lower side of the middle section upright pole 300, and a retracting and releasing wire assembly for reeling in the flexible steel wire rope 106 and a clamping wire assembly for clamping and limiting the flexible steel wire rope 106 are respectively provided on the horizontal plate 302. After the retracting and releasing wire assembly has reeled in the flexible steel wire rope 106, the flexible steel wire rope 106 can be clamped by the clamping wire assembly as required, so that the sliding cutter head 101 can be kept in a fixed position. The combination of the retracting and releasing wire assembly and the clamping wire assembly not only simplifies the management of the flexible steel wire rope 106, but also ensures the accuracy of the measurement through precise clamping.

[0047] The wire reel 306 is connected to the upper and lower pulleys 303 and 304, and the ... 07 is provided with a rotating hand wheel 308 at the top, and the bottom of the screw rod 307 is rotatably connected to the wire clamping ring 305. When in use, the screw rod 307 is rotated by rotating the hand wheel 308 to rise in the threaded hole 306. At this time, the screw rod 307 pulls the wire clamping ring 305 rotatably connected at the bottom to enter the inner side of the threaded hole 306, and allows the flexible steel wire rope 106 to be clamped at the lower edge of the threaded hole 306, so as to realize the precise positioning of the flexible steel wire rope 106, ensure that the sliding cutter head 101 is fixed when necessary, and enhance the accuracy and stability of the measurement. Similarly, when measuring the steel beam, the wire clamping assembly fixes the flexible steel wire rope 106 so that the sliding cutter head 101 presses against the beam body 702, and can also combine the magnetic attraction effect of the electromagnetic attraction plate 800 to make the sliding cutter head 101 have magnetic attraction, and directly adsorb on the steel beam, so that the sliding cutter head 101 and the beam body 702 can achieve a double fixing effect, further improving the stability of use.

[0048] It should be noted that the small telescopic rod 602 can be a smaller type of air cylinder, liquid cylinder or electric push rod known to those skilled in the art in the prior art, so its structural principle will not be described in detail here.

[0049] The above embodiments show and describe the basic principles and main features of the invention and the advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. A device for measuring the cross-sectional dimensions of a beam at a height, characterized in that: include: A T-shaped vertical pole (103), wherein the lower end of the T-shaped vertical pole (103) is detachably connected downwardly with an extension pole (200), a middle vertical pole (300) and a lower vertical pole (500); A cross bar (104) is integrally provided on the top of the T-shaped vertical rod (103); a sliding cutter head (101) is movably sleeved on the right side of the cross bar (104), and the sliding cutter head (101) can slide freely left and right along the cross bar (104); a tension spring (107) is fixedly provided on the left end of the cross bar (104), and is connected to one side of the sliding cutter head (101) through the tension spring (107); and a flexible steel wire rope (106) is traction-connected to the other side of the sliding cutter head (101); The left side of the cross bar (104) is integrally provided with an upwardly protruding fixed blade head (108) for contacting the left side of the beam, a beam clamping groove (100) is provided on the right side of the fixed blade head (108) and the upper side of the cross bar (104), and the sliding blade head (101) is movably located on the right side of the beam clamping groove (100) for tightening the right side of the beam; An upper pulley (105) is rotatably mounted on the upper side of the T-shaped vertical pole (103) and is used to droop downward around the turning flexible steel wire rope (106); a scale (301) corresponding to the flexible steel wire rope (106) is fixedly mounted on the middle vertical pole (300); and the beam width is determined by the distance by which the flexible steel wire rope (106) is pulled downward with the scale (301) as a reference; A horizontal turntable (400), the horizontal turntable (400) being detachably mounted between the middle section upright pole (300) and the lower section upright pole (500), the upper side of the horizontal turntable (400) being detachably connected to a plurality of laser rangefinders (401) staggered and distributed with respect to the crossbar (104), and each laser rangefinder (401) being arranged upward; The upper side of the crossbar (104) is provided with a clamping and positioning assembly for clamping the two side surfaces of the beam, the clamping and positioning assembly comprising a left vertical plate (601) and a right vertical plate (600), wherein the left vertical plate (601) is locked and installed on the upper side of the fixed cutter head (108), and the right vertical plate (600) is locked and installed on the right end of the crossbar (104), and the middle parts of the left vertical plate (601) and the right vertical plate (600) are both installed with relatively small telescopic rods (602), and the telescopic ends of the small telescopic rods (602) are relatively extended and pressed against the left and right sides of the beam; A rubber disc (603) is movably mounted on the telescopic end of the small telescopic rod (602) via a universal ball head rod, and the outer surface of the rubber disc (603) is provided with protective stripes that are in close contact with the side surface of the beam.

2. A device for measuring the cross-sectional dimensions of a high beam according to claim 1, characterized in that: An electromagnetic adsorption plate (800) is horizontally embedded and installed on the upper side of the crossbar (104), and the electromagnetic adsorption plate (800) is located at the lower side of the beam clamping groove (100). The sliding cutter head (101) is slidably sleeved on the electromagnetic adsorption plate (800) and contacts the electromagnetic adsorption plate (800). The electromagnetic adsorption plate (800) is used to adsorb the bottom surface of the steel beam.

3. A device for measuring cross-sectional dimensions of a high beam according to claim 1, characterized in that: A limit block (102) is fixedly provided on the right side of the cross bar (104) for clamping the sliding cutter head (101) to slide outwards, and the tension generated by the tension spring (107) causes the sliding cutter head (101) to be pressed against the limit block (102). An alignment pointer (109) is fixedly provided in the middle of the flexible steel wire rope (106), and the alignment pointer (109) is arranged on one side of the scale (301).

4. A device for measuring the cross-sectional dimensions of a high beam according to claim 3, characterized in that: A transverse plate (302) is integrally provided on the lower side of the middle section upright pole (300), and a wire retracting and releasing assembly for reeling in the flexible steel wire rope (106) and a wire clamping assembly for clamping and limiting the flexible steel wire rope (106) are respectively provided on the transverse plate (302).

5. A device for measuring cross-sectional dimensions of a high beam according to claim 4, characterized in that: The retractable wire assembly comprises a lower pulley (303) and a winding wheel (304) mounted on a transverse plate (302); the lower pulley (303) is located directly below the upper pulley (105) and is used to surround the flexible steel wire rope (106) and guide the flexible steel wire rope (106) to the winding wheel (304) for connection.

6. A device for measuring cross-sectional dimensions of a high beam according to claim 4, characterized in that: The wire clamping assembly comprises a wire clamping ring (305) sleeved on the flexible steel wire rope (106) and a threaded hole (306) vertically opened in the middle of the cross plate (302); the threaded hole (306) is threadedly connected to a screw rod (307); a rotating hand wheel (308) is installed on the top of the screw rod (307); and the bottom of the screw rod (307) is rotatably connected to the wire clamping ring (305); the wire clamping ring (305) can be adapted to enter the inner side of the threaded hole (306) under the pull of the screw rod (307), and the flexible steel wire rope (106) is clamped on the lower side edge of the threaded hole (306).

7. The device for measuring the cross-sectional dimensions of a high beam according to claim 1, characterized in that: A bubble level (402) is installed on the upper side of the horizontal turntable (400), a magnet base (4011) is installed on the bottom of the laser rangefinder (401), and is adsorbed and connected to the horizontal turntable (400) via the magnet base (4011), and a laser perforation (4012) is provided on the top of the laser rangefinder (401), and the laser perforation (4012) is arranged vertically upward.

8. The device for measuring the cross-sectional dimensions of a high beam according to claim 1, characterized in that: The T-shaped vertical pole (103), the extension pole (200) and the middle vertical pole (300) are all connected via threaded sleeve joints, and the upper and lower ends of the horizontal rotating disk (400) are connected to the middle vertical pole (300) and the lower vertical pole (500) via threaded sleeve joints.

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