Building deformation monitoring device

Abstract

The invention relates to the technical field of building deformation monitoring, and discloses a building deformation monitoring device which comprises a sliding rail, a moving driving part is arranged in the sliding rail, a protection shell is fixedly installed at the output end of the moving driving part, and a sliding frame is slidably connected to the top of the protection shell in the length direction of the protection shell. The top end of the sliding frame is rotationally connected with a rolling wheel, a first spring is fixedly installed between the sliding frame and the protective shell, and a distance monitoring piece is arranged between the sliding frame and the protective shell. When the cross beam is inclined or bent, the distance between the roller seat and the bottom cover is changed, the resistance rod moves relative to the carbon brush, the length of the part, connected into a circuit, of the resistance rod is changed, and therefore the numerical value monitored by the digital display ohmic surface is changed, manual reading is not needed, and errors are avoided. And the inclination or bending degree of the cross beam or the wall can be more intuitively reflected through a straight line or a curve drawn by the digital display ohmmeter in the coordinate system.

Description

Technical Field

[0001] The invention relates to the technical field of building deformation monitoring, in particular to a device for building deformation monitoring. Background Art

[0002] Building deformation refers to the phenomenon that the shape or position of a building changes due to various internal and external factors during its construction, use or operation. Common building deformations include: settlement, tilt, displacement, cracks, etc. When a building is deformed, its structural strength will be reduced, creating safety risks.

[0003] The Chinese patent with application date: 2024-04-18 and announcement number: CN118293835B discloses a deformation monitoring device for engineering buildings, which relates to the field of deformation monitoring of engineering buildings, solves the problem that the existing deformation monitoring device for engineering buildings has low monitoring efficiency and is prone to errors when in use, and includes a device rod, a detection mechanism and a measuring mechanism. The upper end of the device rod is rotatably connected with two groups of flip rods. The top of the device rod is provided with an inflatable bag, the detection mechanism includes a pull-out rod, and the measuring mechanism includes a support. This is used for the deformation monitoring device of an engineering building, which is convenient for pulling out the pull-out rod during detection, so that the flip rod is unfolded to a horizontal state and the inflatable bag is inflated, and the upper side of the inflatable bag is in contact with the beam. The degree of downward bending of the beam as a whole is judged by the change of air pressure in the inflatable bag, and the pull-out rod is pulled out to a set length by the measuring mechanism, so that the bottom end of the support supports the ground, so that the upper side of the flip rod supports the beam, and the height of the beam from the ground is obtained, thereby judging whether the beam sinks and bends.

[0004] In this technical solution, the inflatable bag is in contact with the crossbeam, and the degree of overall bending of the crossbeam is determined by the change in air pressure in the inflatable bag. However, during the detection process, the first scale groove needs to be read manually, which is prone to reading errors due to factors such as looking up, so further improvements can be made. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a device for monitoring building deformation, which has the advantages of automatic reading and avoiding errors caused by manual reading, thus solving the problem that errors are easily caused in manual reading.

[0006] (II) Technical solution In order to achieve the above-mentioned automatic display of readings and avoid errors caused by manual readings, the present invention provides the following technical solutions: a device for monitoring building deformation, comprising a slide rail, a mobile driving member is arranged in the slide rail, a protective shell is fixedly installed on the output end of the mobile driving member, a sliding frame is slidably connected to the top of the protective shell along its length direction, a roller is rotatably connected to the top of the sliding frame, a spring is fixedly installed between the sliding frame and the protective shell, a spacing monitoring member is arranged between the sliding frame and the protective shell, and extension arm assemblies are slidably connected to both ends of the slide rail.

[0007] Preferably, an arch plate is fixedly mounted on the lower surface of the middle portion of the slide rail, a handle is fixedly mounted on the bottom of the arch plate, and a horizontal adjustment member is provided in the middle portion of the front side of the slide rail and the arch plate.

[0008] Preferably, the horizontal adjustment member includes a fixed shaft fixedly mounted on the middle part of the front side of the slide rail and the arch plate, a turntable is rotatably connected to the fixed shaft, a counterweight block and a pointer are fixedly mounted on the circumferential surface of the turntable, the counterweight block and the pointer are located on the same diameter of the turntable, and are respectively located on the upper and lower sides of the turntable; four scale grooves are opened in the middle part of the front side of the slide rail and the arch plate, and the four scale grooves are arranged in a circular array with the fixed shaft as the center.

[0009] Preferably, the mobile driving component includes a reducer fixedly mounted on the right end of the slide rail, the reducer input end is connected to a motor, the reducer output end is fixedly mounted with a threaded rod, the threaded rod is rotatably connected in the slide rail, a slider is slidably connected in the slide rail, the slider is provided with a threaded hole, the slider is threadedly connected to the threaded rod, a connecting arm is fixedly mounted on the top of the slider, and the protective shell is fixedly mounted on the top of the connecting arm; the protective shell includes a shell, a top cover, a bottom cover and an avoidance hole, the top cover is fixedly mounted on the top of the shell, the bottom cover is fixedly mounted on the bottom of the shell, the avoidance hole is penetrated and opened at the center of the top cover, and the bottom cover is fixedly mounted on the top of the connecting arm.

[0010] Preferably, the sliding frame includes four sliding rods, the four sliding rods are slidably connected to the top cover, roller seats are fixedly installed on the top ends of the four sliding rods, a corrugated rubber sleeve is fixedly installed between the bottom of the roller seat and the protective shell, the roller is rotatably connected to the roller seat, the number of springs is four, and the springs correspond one to the sliding rods. One set of springs is arranged on the outside of the sliding rod, and the two ends of the springs are respectively fixedly installed on the bottom of the roller seat and the top of the top cover; a limit plate is fixedly installed on the surface of the sliding rod, and the limit plate is attached to the bottom of the top cover.

[0011] Preferably, a hydraulic damping component is provided at the bottom end of the slide rod, and the hydraulic damping component includes a piston plate and a piston cylinder, the piston plate is fixedly mounted at the bottom end of the slide rod, the piston cylinder is fixedly mounted on the top of the bottom cover, the piston plate is slidably connected to the inside of the piston cylinder, the slide rod is slidably connected to the top of the piston cylinder, and an oil window is penetrated through the circumferential surface of the bottom end of the piston plate; the inside of the piston cylinder is filled with hydraulic oil, and a guide flow channel is penetrated through the piston plate; the guide flow channel includes a circular groove opened on the top of the piston plate, the circular groove is connected to the oil window, and a guide hole is arrayed at the bottom of the piston plate, the guide hole is L-shaped, and the other end of the guide hole is connected to the side wall of the circular groove.

[0012] Preferably, the spacing monitoring component includes an insulating pad 1 fixedly installed on the bottom of the roller seat, a resistor rod fixedly installed on the bottom of the insulating pad 1, the resistor rod passes through the avoidance hole, the diameter of the resistor rod is smaller than the aperture of the avoidance hole, an insulating pad 2 fixedly installed on the bottom of the top cover, a carbon brush fixedly installed on the bottom of the insulating pad 2, the carbon brush is attached to the resistor rod, the bottom end of the resistor rod and the carbon brush are electrically connected to a controller, and a digital ohmmeter is provided in the controller.

[0013] Preferably, the extension arm assembly includes two extension arm bodies, the cross-section of the extension arm body is U-shaped, the two extension arm bodies are respectively slidably connected to the two ends of the slide rail, and the two extension arm bodies are fixedly installed with support feet at the opposite ends; guide grooves are opened through the front and rear sides of the extension arm bodies, and bosses are fixedly installed on the front and rear sides of both ends of the slide rail, and the extension arm bodies are slidably connected to the bosses through the guide grooves; rack plates are fixedly installed at the opposite ends of the two extension arm bodies, and the two rack plates are distributed front and back, and the lower surface of the middle part of the slide rail is rotatably connected to a gear, and the two rack plates are respectively meshed with the front and rear sides of the gear.

[0014] Preferably, a mounting platform is fixedly installed at the bottom of the two extension arm bodies, and a deflection arm is rotatably connected to the bottom of the opposite ends of the two extension arm bodies. A card slot is provided at the other end of the deflection arm, and the card slot is in a "convex" shape. A sliding groove is provided at the bottom of the opposite end of the two mounting platforms, and a card column is slidably connected to the sliding groove, and the cross-section of the card column is in an "I" shape, and the card column is inserted into the card slot.

[0015] Preferably, a positioning assembly is provided on the mounting platform on the right side, and the positioning assembly includes a pressure plate rotatably connected to the bottom of the right end of the mounting platform, and a receiving groove is provided at the bottom of the right end of the mounting platform, and the receiving groove is used to accommodate the pressure plate, and the mounting platform is provided with a mounting groove located in the left half of the top wall of the receiving groove, a sliding column is slidably connected in the mounting groove, and a spring 2 is fixedly installed between the top end of the sliding column and the top wall of the mounting groove; an mounting cavity is provided in the middle part of the mounting platform, and a connecting groove is provided through the middle part of the top wall of the receiving groove, and the connecting groove is connected with the mounting cavity, a sliding strip is slidably connected in the mounting cavity, a cross plate is fixed through the middle of the sliding strip, the cross plate is slidably connected in the connecting groove, a rubber sheet is fixedly installed on the top of the cross plate, and an avoidance groove is provided through the bottom of the extension arm body, and the avoidance groove is connected with the connecting groove.

[0016] (III) Beneficial effects Compared with the prior art, the present invention provides a device for monitoring building deformation, which has the following beneficial effects: 1. The device for monitoring deformation of buildings drives the threaded rod to rotate through the reducer and the motor, and the slider and the connecting arm slide along the slide rail, so that the roller rolls on the beam or wall; when the beam tilts or bends, the distance between the roller seat and the bottom cover changes, so that the slide rod slides relative to the top cover; in this process, the resistance rod moves relative to the carbon brush, so that the length of the resistance rod connected to the circuit changes, so that the value monitored by the digital ohmmeter changes; the digital ohmmeter can be electrically connected to the computer, and the coordinate system can be set by the computer, the time of the threaded rod rotation is the horizontal coordinate, and the resistance monitored by the digital ohmmeter is the vertical coordinate. The value monitored by the digital ohmmeter can form a straight line or curve in the coordinate system, reflecting the tilt or bending degree of the beam or wall. There is no need to read manually to avoid errors. And the straight line or curve made by the digital ohmmeter in the coordinate system can more intuitively reflect the tilt or bending degree of the beam or wall.

[0017] 2. The device is used for monitoring deformation of buildings. When the roller seat moves relative to the top cover, the slide rod slides relative to the top cover, the piston plate slides inside the piston cylinder, and the hydraulic oil inside the piston cylinder flows through the guide hole. The resistance of the hydraulic oil to the piston plate makes the roller seat move relatively to the top cover more smoothly, ensuring that the reading of the digital ohmmeter is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a building deformation monitoring device proposed by the present invention; Figure 2 A schematic diagram of the structure of a horizontal adjustment member for a building deformation monitoring device proposed by the present invention; Figure 3This is a schematic diagram of the structure of a building deformation monitoring device proposed by the present invention in which a moving driving member and a slide rail are separated; Figure 4 This is a schematic diagram of the three-dimensional structure of a building deformation monitoring device proposed by the present invention after removing the slide rail, the moving drive member and the extension arm assembly; Figure 5 A schematic diagram of the three-dimensional structure of a corrugated rubber sleeve and a protective shell of a building deformation monitoring device proposed by the present invention in a separated state; Figure 6 A schematic diagram of a three-dimensional exploded structure of a sliding frame and a spacing monitoring component for a building deformation monitoring device proposed by the present invention; Figure 7 A schematic diagram of a three-dimensional explosion structure of a sliding frame for a building deformation monitoring device proposed by the present invention; Figure 8 A schematic diagram of a three-dimensional cross-section structure of a sliding rod of a building deformation monitoring device proposed by the present invention; Fig. 9 A schematic diagram of the three-dimensional structure of an extension arm assembly for a building deformation monitoring device proposed by the present invention; Fig.10 A schematic diagram of the three-dimensional structure of an extension arm assembly of a building deformation monitoring device proposed by the present invention in an unfolded state; Fig.11 This is a schematic diagram of the front cross-sectional structure of an extension arm assembly for a building deformation monitoring device proposed by the present invention; Fig.12 A building deformation monitoring device proposed by the present invention Fig.11 A is a schematic diagram of the enlarged structure of the details.

[0019] In the figure: 100, slide rail; 200, mobile driving member; 300, protective shell; 400, sliding frame; 500, roller; 600, spring 1; 700, spacing monitoring member; 800, extension arm assembly; 900, positioning assembly; 101, arch plate; 102, handle; 103, fixed shaft; 104, turntable; 105, counterweight; 106, pointer; 107, scale groove; 201, reducer; 202, motor; 203, threaded rod; 204, slider; 205, connecting arm; 301, housing; 302, top cover; 303, bottom cover; 304, avoidance hole; 401, slide bar; 402, roller seat; 403, limit plate; 404, piston plate; 405, piston cylinder; 406, oil window; 407, circular groove; 408, guide hole; 409, corrugated rubber sleeve; 701, insulation pad 1; 702, resistor rod; 703, insulation pad 2; 704, carbon brush; 705, controller; 801, extension arm body; 802, support foot; 803, guide groove; 804, boss; 805, rack plate; 806, gear; 807, mounting platform; 808, deflection arm; 809, slot; 810, slide groove; 811, clamping column; 901, pressure plate; 902, accommodating groove; 903, mounting groove; 904, slide column; 905, spring 2; 906, mounting cavity; 907, connecting groove; 908, avoidance groove; 909, slide bar; 910, cross plate; 911, rubber sheet. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1 A device for monitoring deformation of a building includes a slide rail 100, a mobile driving member 200 is arranged inside the slide rail 100, a protective shell 300 is fixedly installed at the output end of the mobile driving member 200, a sliding frame 400 is slidably connected to the top of the protective shell 300 along its length direction, a roller 500 is rotatably connected to the top of the sliding frame 400, a spring 600 is fixedly installed between the sliding frame 400 and the protective shell 300, a spacing monitoring member 700 is arranged between the sliding frame 400 and the protective shell 300, and extension arm assemblies 800 are slidably connected to both ends of the slide rail 100.

[0022] See also Figure 1-Figure 2 The lower surface of the middle part of the slide rail 100 is fixedly mounted with an arch plate 101, and the bottom of the arch plate 101 is fixedly mounted with a handle 102. Therefore, when carrying, it is convenient to hold the handle 102. The middle part of the front side of the slide rail 100 and the arch plate 101 is provided with a horizontal adjustment member.

[0023] The horizontal adjustment member includes a fixed shaft 103 fixedly installed in the middle of the front side of the slide rail 100 and the arch plate 101, and a turntable 104 is rotatably connected to the fixed shaft 103. A counterweight block 105 and a pointer 106 are fixedly installed on the circumferential surface of the turntable 104. The counterweight block 105 and the pointer 106 are located on the same diameter of the turntable 104 and are respectively located on the upper and lower sides of the turntable 104; four scale grooves 107 are opened in the middle of the front side of the slide rail 100 and the arch plate 101, and the four scale grooves 107 are arranged in a circular array with the fixed shaft 103 as the center.

[0024] When the slide rail 100 is placed horizontally, under the action of gravity, the counterweight 105 is located directly below the turntable 104. When the pointer 106 indicates the scale groove 107 directly above the turntable 104, it reflects that the slide rail 100 is in a horizontal state. When the slide rail 100 is set vertically, the turntable 104 will rotate relative to the fixed shaft 103, so that the counterweight 105 is again located directly below the turntable 104. When the pointer 106 indicates the scale groove 107 on the left side of the fixed shaft 103, it reflects that the slide rail 100 is in a vertical state.

[0025] See also Figure 1-Figure 4 The mobile driving member 200 includes a reducer 201 fixedly mounted on the right end of the slide rail 100. The input end of the reducer 201 is connected to a motor 202. The output end of the reducer 201 is fixedly mounted with a threaded rod 203. The threaded rod 203 is rotatably connected in the slide rail 100, and the threaded rod 203 is arranged along the length direction of the slide rail 100. A slider 204 is slidably connected in the slide rail 100. The slider 204 is provided with a threaded hole. The slider 204 is threadedly connected to the threaded rod 203. A connecting arm 205 is fixedly mounted on the top of the slider 204. The protective shell 300 is fixedly mounted on the top of the connecting arm 205. The motor 202 and the reducer 201 cooperate to drive the threaded rod 203 to rotate, thereby driving the slider 204 to move along the slide rail 100.

[0026] When measuring whether the building beam is tilted or bent, the position of the slide rail 100 is adjusted to a horizontal state through the horizontal adjustment member, the extension arm assembly 800 is fixed to the wall, and the roller 500 is fitted to the bottom of the beam. The spring 1 600 is squeezed a certain distance to ensure that the roller 500 will not separate from the beam. Then, the slider 204 and the connecting arm 205 are moved along the slide rail 100 to make the roller 500 roll on the beam. When the beam is tilted or bent, the sliding frame 400 will slide relative to the protective shell 300. At the same time, the relative displacement of the sliding frame 400 and the protective shell 300 is monitored by the spacing monitoring member 700, which can reflect the tilt and bending of the beam.

[0027] When measuring whether the wall of a building is tilted or bent, the slide rail 100 can be set vertically, and the position of the slide rail 100 can be adjusted to a vertical state through the horizontal adjustment member, the extension arm assembly 800 is fixed to the ceiling and the floor, the roller 500 is attached to the wall, and the spring 1 600 is squeezed a certain distance. When the roller 500 moves on the wall, when the beam tilts or bends, the sliding frame 400 will slide relative to the protective shell 300. At the same time, the relative displacement of the sliding frame 400 and the protective shell 300 is monitored by the spacing monitoring member 700, which can reflect the tilt and bending of the wall.

[0028] See also Figure 5-Figure 6The protective shell 300 includes a shell 301, a top cover 302, a bottom cover 303 and an avoidance hole 304. The top cover 302 is fixedly installed on the top of the shell 301, the bottom cover 303 is fixedly installed on the bottom of the shell 301, the avoidance hole 304 is opened through the center of the top cover 302, and the bottom cover 303 is fixedly installed on the top of the connecting arm 205.

[0029] See also Figure 4-Figure 6 The sliding frame 400 includes four sliding bars 401, which are connected to the top cover 302 through sliding. The top of the four sliding bars 401 is fixedly installed with a roller seat 402, and a corrugated rubber sleeve 409 is fixedly installed between the bottom of the roller seat 402 and the protective shell 300. The roller 500 is rotatably connected to the roller seat 402. There are four springs 600, which correspond to the sliding bars 401 one by one. The spring 600 is sleeved on the outside of the sliding bar 401, and the two ends of the spring 600 are respectively fixedly installed at the bottom of the roller seat 402 and the top of the top cover 302. The elasticity of the spring 600 makes the roller seat 402 have a tendency to move away from the top cover 302. When the roller 500 rolls along the beam or wall of the building, the roller seat 402 moves relative to the top cover 302, and the sliding bar 401 slides on the top cover 302. A limit piece 403 is fixedly mounted on the surface of the slide bar 401, and the limit piece 403 is attached to the bottom of the top cover 302. In the initial state, the limit piece 403 abuts against the bottom of the top cover 302 to prevent the slide bar 401 from being separated from the top cover 302.

[0030] In addition, the distance monitoring member 700 may use a distance sensor, which is installed on the top of the top cover 302 to monitor the distance between the roller seat 402 and the distance sensor. Therefore, when the roller 500 rolls on the beam or wall of the building, if the beam or wall is tilted or bent, the distance between the roller seat 402 and the distance sensor will change, thereby reflecting the tilt or bending degree of the beam or wall.

[0031] See also Figure 6-Figure 7, a hydraulic damping member is arranged at the bottom of the slide bar 401, and the hydraulic damping member includes a piston plate 404 and a piston cylinder 405. The piston plate 404 is fixedly mounted at the bottom of the slide bar 401, and the piston cylinder 405 is fixedly mounted at the top of the bottom cover 303. The piston plate 404 is slidably connected inside the piston cylinder 405, and the slide bar 401 is slidably connected to the top of the piston cylinder 405. The bottom circumferential surface of the piston plate 404 is penetrated with an oil window 406; the piston cylinder 405 is filled with hydraulic oil, and a guide channel is penetrated on the piston plate 404. Therefore, when the beam or wall is tilted or bent, the roller seat 402 moves relative to the top cover 302 during the rolling process of the roller 500 on the beam or wall. Therefore, the piston plate 404 slides in the piston cylinder 405, and the hydraulic oil flows through the guide channel. The resistance generated by the hydraulic oil on the piston plate 404 makes the movement process of the roller seat 402 slow. Avoid the roller seat 402 from vibrating rapidly, which may affect the monitoring effect of the spacing monitoring component 700.

[0032] See also Figure 7-Figure 8 The guide channel includes a circular groove 407 opened on the top of the piston plate 404, and the circular groove 407 is connected to the oil window 406. The bottom of the piston plate 404 is provided with a guide hole 408 in an L-shaped array, and the other end of the guide hole 408 is connected to the side wall of the circular groove 407. Therefore, when the piston plate 404 moves downward relative to the piston cylinder 405, the hydraulic oil in the lower half of the piston cylinder 405 passes through the guide hole 408 and enters the circular groove 407, and the hydraulic oil generates convection inside the circular groove 407, so that the resistance of the piston plate 404 is relatively large when it moves downward. Under the elastic action of the spring 600, when the piston plate 404 moves upward relative to the piston cylinder 405, the hydraulic oil in the upper half of the piston cylinder 405 enters the guide hole 408 from the circular groove 407, providing a certain resistance.

[0033] See also Figure 6The spacing monitoring component 700 includes an insulating pad 1 701 fixedly mounted on the bottom of the roller seat 402, a resistor rod 702 fixedly mounted on the bottom of the insulating pad 1 701, the resistor rod 702 passes through the avoidance hole 304, and the diameter of the resistor rod 702 is smaller than the aperture of the avoidance hole 304. An insulating pad 2 703 is fixedly mounted on the bottom of the top cover 302, a carbon brush 704 is fixedly mounted on the bottom of the insulating pad 2 703, and the carbon brush 704 is attached to the resistor rod 702. The bottom end of the resistor rod 702 and the carbon brush 704 are electrically connected to a controller 705, and a digital ohmmeter is arranged in the controller 705. Insulation is performed by the insulating pad 1 701 and the insulating pad 2 703. Thus, the part of the resistor rod 702 located below the carbon brush 704 is connected to the circuit, and the digital ohmmeter is used to monitor the resistance of the part of the resistor rod 702 connected to the circuit. Therefore, when the roller seat 402 moves relative to the top cover 302, the resistor rod 702 slides relative to the carbon brush 704, so that the length of the resistor rod 702 connected to the circuit changes, and the resistance value monitored by the digital ohmmeter also changes. Therefore, the value displayed on the digital ohmmeter surface reflects the length of the resistor rod 702 connected to the circuit. And by setting a coordinate system, the time of rotation of the threaded rod 203 is the horizontal coordinate, and the resistance monitored by the digital ohmmeter is the vertical coordinate. The value monitored by the digital ohmmeter can form a straight line or curve in the coordinate system, reflecting the inclination or curvature of the beam or wall. Since the threaded rod 203 rotates at a uniform speed, the time of rotation of the threaded rod 203 is proportional to the distance that the slider 204 moves along the slide rail 100, and the movement distance of the slider 204 can be reflected by the rotation time of the threaded rod 203.

[0034] See also Figure 9-11 The extension arm assembly 800 includes two extension arm bodies 801, the cross section of the extension arm body 801 is U-shaped, the two extension arm bodies 801 are respectively slidably connected to the two ends of the slide rail 100, and the two extension arm bodies 801 are fixedly installed with support feet 802 at the opposite ends. The front and rear sides of the extension arm body 801 are penetrated with guide grooves 803, and the front and rear sides of both ends of the slide rail 100 are fixedly installed with bosses 804, and the extension arm body 801 is slidably connected to the bosses 804 through the guide grooves 803. The two extension arm bodies 801 are fixedly installed with rack plates 805 at the opposite ends, and the two rack plates 805 are distributed front and back. The lower surface of the middle part of the slide rail 100 is rotatably connected with a gear 806, and the two rack plates 805 are respectively meshed with the front and rear sides of the gear 806. Therefore, when the right extension arm body 801 is pulled to move relative to the slide rail 100, the other extension arm body 801 can be driven to slide relative to the slide rail 100 under the transmission action of the rack plate 805 and the gear 806. Moreover, the moving distances of the two extension arm bodies 801 are equal, thereby extending the overall length of the slide rail 100 and the extension arm body 801.

[0035] The bottom of the two extension arm bodies 801 is fixedly installed with a mounting platform 807, and the bottom of the opposite ends of the two extension arm bodies 801 is rotatably connected with a deflection arm 808, and the other end of the deflection arm 808 is provided with a slot 809, and the slot 809 is in a "convex" shape. The bottom of the opposite ends of the two mounting platforms 807 is provided with a slide groove 810, and the slide groove 810 is slidably connected with a clamping column 811, and the cross section of the clamping column 811 is in an "I" shape, and the clamping column 811 is inserted into the clamping groove 809. Therefore, when the slide rail 100 is set horizontally, the two support legs 802 can be attached to the wall below the beam by pulling the extension arm body 801.

[0036] When storing, the deflection arm 808 is deflected to fit the bottom of the mounting platform 807 , and then the clamping column 811 is pushed to slide in the slide groove 810 , so that the clamping column 811 is clamped into the clamping groove 809 , thereby limiting the deflection arm 808 .

[0037] See also Figure 10-12 , a positioning assembly 900 is arranged on the right side mounting platform 807, and the positioning assembly 900 includes a pressing plate 901 rotatably connected to the bottom of the right end of the mounting platform 807, and a receiving groove 902 is provided at the bottom of the right end of the mounting platform 807, and the receiving groove 902 is used to receive the pressing plate 901. The mounting platform 807 is provided with a mounting groove 903 at the left half of the top wall of the receiving groove 902, and a sliding column 904 is slidably connected in the mounting groove 903, and a second spring 905 is fixedly installed between the top of the sliding column 904 and the top wall of the mounting groove 903. Therefore, when the deflection arm 808 is attached to the bottom of the mounting platform 807, the deflection arm 808 will squeeze the pressing plate 901, so that the pressing plate 901 deflects toward the inside of the receiving groove 902. The pressing plate 901 only squeezes the sliding column 904, so that the sliding column 904 slides into the inside of the mounting groove 903, and the second spring 905 is squeezed and contracted. After the sliding clamping column 811 releases the limit on the deflection arm 808, the deflection arm 808 is pushed downward. Under the elastic action of the second spring 905, the sliding column 904 can push the pressure plate 901 to deflect out of the receiving groove 902.

[0038] The middle of the mounting platform 807 is provided with a mounting cavity 906. The mounting platform 807 is located in the middle of the top wall of the receiving groove 902 and is provided with a connecting groove 907. The connecting groove 907 is connected with the mounting cavity 906. A slide bar 909 is slidably connected in the mounting cavity 906. A horizontal plate 910 is fixedly provided in the middle of the slide bar 909. The horizontal plate 910 is slidably connected in the connecting groove 907. A rubber sheet 911 is fixedly provided on the top of the horizontal plate 910. An avoidance groove 908 is provided at the bottom of the extension arm body 801 and is connected with the connecting groove 907. When the deflection arm 808 is attached to the bottom of the mounting platform 807, the deflection arm 808 presses the pressure plate 901 to deflect into the receiving groove 902. The pressure plate 901 pushes the horizontal plate 910 upward, so that the rubber sheet 911 passes through the connecting groove 907 and the avoidance groove 908 and is pressed on the bottom of the slide rail 100, thereby preventing the extension arm body 801 from sliding relative to the slide rail 100. The overall length of the extension arm body 801 and the slide rail 100 is maintained at the current state.

[0039] When in use, when testing the degree of inclination or bending of the beam, the deflection arm 808 is pulled downward, and the pressure plate 901 is pushed to the left and right by the slide column 904. The cross plate 910 and the slide bar 909 move downward under the action of gravity, and the rubber sheet 911 is no longer pressed on the bottom of the slide rail 100; then, by pulling the extension arm body 801 to slide relative to the slide rail 100, the overall length of the extension arm body 801 and the slide rail 100 is increased, so that the two support legs 802 can fit on the wall, and by adjusting the inclination angle of the slide rail 100, the pointer 106 indicates that it is fixed. The scale groove 107 just above the fixed axis 103 makes the slide rail 100 in a horizontal state; then the deflection arm 808 is pulled upward to make the deflection arm 808 fit the bottom of the mounting platform 807, and the clamping column 811 is inserted into the clamping groove 809 to limit the deflection arm 808; the pressure plate 901 pushes the cross plate 910 upward to make the rubber sheet 911 fit tightly against the bottom of the slide rail 100 to inhibit the extension arm body 801 from sliding relative to the slide rail 100; the overall length of the slide rail 100 and the extension arm body 801 is maintained in the current state, and the support foot 802 is kept in contact with the wall; Then, the threaded rod 203 is driven to rotate by the reducer 201 and the motor 202, and the slider 204 and the connecting arm 205 slide along the slide rail 100, so that the roller 500 rolls on the beam; when the beam is tilted or bent, the distance between the roller seat 402 and the bottom cover 303 changes, so that the slide rod 401 slides relative to the top cover 302; in this process, the resistance rod 702 moves up and down, so that the length of the resistance rod 702 connected to the circuit changes, so that the value monitored by the digital ohmmeter changes; the digital ohmmeter can be electrically connected to the computer, and the coordinate system can be set by the computer, the time of the threaded rod 203 rotation is the horizontal coordinate, and the resistance monitored by the digital ohmmeter is the vertical coordinate. The value monitored by the digital ohmmeter can form a straight line or curve in the coordinate system, reflecting the tilt or bending degree of the beam or wall.

[0040] When the degree of inclination or bending of the wall is detected, the slide rail 100 is set vertically, and then the deflection arm 808 is turned to release the pressing effect of the pressure plate 901 on the horizontal plate 910, and then the extension arm body 801 is pulled to slide relative to the slide rail 100 to increase the overall length of the extension arm body 801 and the slide rail 100, so that the two supporting feet 802 are respectively attached to the ground and the ceiling, and then the deflection arm 808 is turned to make the deflection arm 808 attached to the mounting table 807, so that the overall length of the extension arm body 801 and the slide rail 100 can be maintained in the current state; The slider 204 is then driven by the threaded rod 203 to move along the slide rail 100, so that the roller 500 can roll on the wall. Similarly, the inclination or curvature of the wall can be detected.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for monitoring deformation of a building, comprising a slide rail (100), characterized in that: A movable driving member (200) is arranged in the slide rail (100); a protective shell (300) is fixedly installed at the output end of the movable driving member (200); a sliding frame (400) is slidably connected to the top of the protective shell (300) along its length direction; a roller (500) is rotatably connected to the top of the sliding frame (400); a spring (600) is fixedly installed between the sliding frame (400) and the protective shell (300); a spacing monitoring member (700) is arranged between the sliding frame (400) and the protective shell (300); and extension arm assemblies (800) are slidably connected to both ends of the slide rail (100).

2. The building deformation monitoring device according to claim 1, characterized in that: An arched plate (101) is fixedly mounted on the lower surface of the middle part of the slide rail (100), a handle (102) is fixedly mounted on the bottom of the arched plate (101), and a horizontal adjustment member is provided at the middle part of the front side of the slide rail (100) and the arched plate (101).

3. The building deformation monitoring device according to claim 2, characterized in that: The horizontal adjustment member comprises a fixed shaft (103) fixedly mounted on the middle part of the front side of the slide rail (100) and the arch plate (101); a turntable (104) is rotatably connected to the fixed shaft (103); a counterweight (105) and a pointer (106) are fixedly mounted on the circumferential surface of the turntable (104); the counterweight (105) and the pointer (106) are located on the same diameter of the turntable (104) and are respectively located on the upper and lower sides of the turntable (104); Four scale grooves (107) are provided in the middle of the front side of the slide rail (100) and the arched plate (101), and the four scale grooves (107) are arranged in a circular array with the fixed shaft (103) as the center.

4. The building deformation monitoring device according to claim 1, characterized in that: The mobile driving member (200) comprises a reducer (201) fixedly mounted on the right end of the slide rail (100); the input end of the reducer (201) is connected to a motor (202); the output end of the reducer (201) is fixedly mounted with a threaded rod (203); the threaded rod (203) is rotatably connected to the slide rail (100); a slider (204) is slidably connected to the slide rail (100); the slider (204) is provided with a threaded hole; the slider (204) is threadedly connected to the threaded rod (203); a connecting arm (205) is fixedly mounted on the top of the slider (204); and the protective shell (300) is fixedly mounted on the top of the connecting arm (205); The protective shell (300) comprises a shell (301), a top cover (302), a bottom cover (303) and an avoidance hole (304); the top cover (302) is fixedly mounted on the top end of the shell (301); the bottom cover (303) is fixedly mounted on the bottom end of the shell (301); the avoidance hole (304) is opened through the center of the top cover (302); and the bottom cover (303) is fixedly mounted on the top of the connecting arm (205).

5. The building deformation monitoring device according to claim 4, characterized in that: The sliding frame (400) includes four sliding rods (401), the four sliding rods (401) penetrate and are slidably connected to the top cover (302), the tops of the four sliding rods (401) are fixedly installed with roller seats (402), the bottoms of the roller seats (402) and the protective shell (300) are fixedly installed with corrugated rubber sleeves (409), the rollers (500) are rotatably connected to the roller seats (402), the number of springs (600) is four, the springs (600) correspond to the sliding rods (401) one by one, the springs (600) are sleeved on the outside of the sliding rods (401), and the two ends of the springs (600) are respectively fixedly installed on the bottom of the roller seats (402) and the top of the top cover (302); A limiting plate (403) is fixedly mounted on the surface of the sliding rod (401), and the limiting plate (403) is attached to the bottom of the top cover (302).

6. The device for monitoring building deformation according to claim 5, characterized in that: A hydraulic damping component is provided at the bottom end of the slide rod (401), and the hydraulic damping component comprises a piston plate (404) and a piston cylinder (405); the piston plate (404) is fixedly mounted at the bottom end of the slide rod (401); the piston cylinder (405) is fixedly mounted on the top of the bottom cover (303); the piston plate (404) is slidably connected inside the piston cylinder (405); the slide rod (401) penetrates and is slidably connected to the top end of the piston cylinder (405); and an oil window (406) is penetrated and provided on the circumferential surface of the bottom end of the piston plate (404); The piston cylinder (405) is filled with hydraulic oil, and a guide channel is provided through the piston plate (404); The guide flow channel comprises a circular groove (407) formed on the top of the piston plate (404), the circular groove (407) being connected to the oil window (406), and a flow guide hole (408) is formed in an array on the bottom of the piston plate (404), the flow guide hole (408) being L-shaped, and the other end of the flow guide hole (408) being connected to the side wall of the circular groove (407).

7. The building deformation monitoring device according to claim 5, characterized in that: The spacing monitoring component (700) comprises an insulating pad 1 (701) fixedly mounted on the bottom of the roller seat (402); a resistor rod (702) is fixedly mounted on the bottom of the insulating pad 1 (701); the resistor rod (702) passes through the avoidance hole (304); the diameter of the resistor rod (702) is smaller than the hole diameter of the avoidance hole (304); an insulating pad 2 (703) is fixedly mounted on the bottom of the top cover (302); a carbon brush (704) is fixedly mounted on the bottom of the insulating pad 2 (703); the carbon brush (704) is attached to the resistor rod (702); the bottom end of the resistor rod (702) and the carbon brush (704) are electrically connected to a controller (705); a digital ohmmeter is arranged in the controller (705).

8. The building deformation monitoring device according to claim 1, characterized in that: The extension arm assembly (800) comprises two extension arm bodies (801), the cross section of the extension arm body (801) is U-shaped, the two extension arm bodies (801) are slidably connected to the two ends of the slide rail (100), and the two ends of the two extension arm bodies (801) are fixedly mounted with support feet (802); The front and rear sides of the extension arm body (801) are both penetrated by guide grooves (803), the front and rear sides of both ends of the slide rail (100) are both fixedly mounted with bosses (804), and the extension arm body (801) is slidably connected to the bosses (804) via the guide grooves (803); A rack plate (805) is fixedly mounted on opposite ends of the two extension arm bodies (801), and the two rack plates (805) are distributed front and back. A gear (806) is rotatably connected to the lower surface of the middle part of the slide rail (100), and the two rack plates (805) are respectively meshed with the front and rear sides of the gear (806).

9. The device for monitoring building deformation according to claim 8, characterized in that: The bottoms of the two extension arm bodies (801) are fixedly mounted with mounting platforms (807); the bottoms of the two extension arm bodies (801) at opposite ends are rotatably connected with deflection arms (808); the other ends of the deflection arms (808) are provided with a clamping groove (809); the clamping groove (809) is in a "convex" shape; the bottoms of the two installation platforms (807) at opposite ends are provided with a sliding groove (810); a clamping column (811) is slidably connected to the sliding groove (810); the cross section of the clamping column (811) is in an "I" shape; the clamping column (811) is inserted into the clamping groove (809).

10. The device for monitoring building deformation according to claim 9, characterized in that: A positioning assembly (900) is arranged on the mounting platform (807) on the right side. The positioning assembly (900) comprises a pressing plate (901) rotatably connected to the bottom right end of the mounting platform (807). A receiving groove (902) is provided at the bottom right end of the mounting platform (807). The receiving groove (902) is used to receive the pressing plate (901). A mounting groove (903) is provided at the left half of the top wall of the receiving groove (902) of the mounting platform (807). A sliding column (904) is slidably connected in the mounting groove (903). A second spring (905) is fixedly installed between the top end of the sliding column (904) and the top wall of the mounting groove (903). A mounting cavity (906) is provided in the middle of the mounting platform (807); a connecting groove (907) is provided through the middle of the top wall of the accommodating groove (902) of the mounting platform (807); the connecting groove (907) is communicated with the mounting cavity (906); a slide bar (909) is slidably connected in the mounting cavity (906); a horizontal plate (910) is fixedly provided through the middle of the slide bar (909); the horizontal plate (910) is slidably connected in the communicating groove (907); a rubber sheet (911) is fixedly provided on the top of the horizontal plate (910); and an avoidance groove (908) is provided through the bottom of the extension arm body (801); the avoidance groove (908) is communicated with the communicating groove (907).

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