Steel truss deformation monitoring device

Abstract

The utility model relates to a steel truss deformation monitoring device which comprises a mounting seat, a fixed seat is fixed to the top of the mounting seat, a plurality of threaded holes are formed in the top of the fixed seat in a penetrating mode, a sliding groove is formed in the bottom of the mounting seat, a moving assembly is mounted on the mounting seat and comprises a double-thread screw, a hand wheel and a sliding block, and a rotating seat is arranged at the bottom of the sliding block. The rotating seat is sleeved with a sleeve rotationally connected with the rotating seat, clamping seats are fixed to the bottom of the sleeve, arc-shaped grooves are formed in the side walls of the sides, close to each other, of the two clamping seats, and a limiting assembly used for limiting the sleeve is installed on the rotating seat. The arc-shaped grooves of the two clamping seats or the side walls of the sides, away from the arc-shaped grooves, of the clamping seats face to face, the sleeve is limited through the limiting assembly, then the installation seat is placed on the steel member, the double-thread screw is rotated through the hand wheel, the two clamping seats are made to move close to each other and abut against the steel member, and the prism can be conveniently fixed to the steel members in different shapes.

Description

Technical Field

[0001] The utility model relates to the technical field of steel truss monitoring, in particular to a steel truss deformation monitoring device. Background Technique

[0002] A steel truss refers to a truss made of steel, which is a lattice structure formed by welding, bolt connection or riveting. It is usually used in places such as bridges, roof structures, towers, industrial plants and large buildings that need to bear large loads and spans, which makes the deformation monitoring of steel trusses more and more important, directly affecting the safety of the building itself and the safety of people's lives and property. In the deformation monitoring of steel trusses, the commonly used method is the total station polar coordinate measurement combined with prisms or special target patches. The prism needs to be installed on the steel members of the steel truss. Due to the large differences in the shape and size specifications of the steel members, it is difficult for the prism base to adapt to various types of steel. Therefore, the prism base is often fixed on the steel members of the steel truss by bolt connection or welding.

[0003] In view of the above related technologies, the inventor believes that there are the following defects: Using bolt connection and welding methods requires drilling or welding on the steel members, which is not only cumbersome and inconvenient to install, but also inevitably damages the steel members of the steel truss, destroys the appearance of the steel members, and reduces the strength and stiffness of the steel members of the steel truss. Content of the Utility Model

[0004] In order to solve the above problems, the utility model provides a steel truss deformation monitoring device.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A steel truss deformation monitoring device includes a mounting base, a fixed base is fixed on the top of the mounting base, a plurality of threaded holes are opened through the top of the fixed base, a chute is opened at the bottom of the mounting base, a moving component is installed on the mounting base, the moving component includes a double-headed screw penetrating through and rotatably connected to the side wall of the mounting base, a hand wheel fixed to the end of the double-headed screw away from the mounting base, and a slider slidably connected to the inner wall of the chute. One end of the double-headed screw is rotatably connected to the inner wall of the chute. There are two threads with opposite helix directions and equal pitches on the double-headed screw. Two sliders are symmetrically arranged. The two sliders are respectively threadedly connected to the two threads on the double-headed screw. A rotating seat is arranged at the bottom of each slider. A sleeve rotatably connected to the rotating seat is sleeved on each rotating seat. A clamping seat is fixed at the bottom of each sleeve. Arc-shaped grooves are opened on the side walls of the two clamping seats close to each other. A limiting component for limiting the sleeve is installed on the rotating seat.

[0006] By adopting the above technical solution, the prism is threadedly connected and fixed in the threaded hole of the fixed seat. After the limiting component releases the limitation on the sleeve, the sleeve and the clamping seat are rotated according to the shape of the steel structure on the steel truss. Then, the arc grooves of the two clamping seats or the side walls of the clamping seats away from the arc grooves face each other. Next, the sleeve is limited by the limiting component to restrict the rotation of the clamping seat. After that, the mounting seat is placed on the steel member, and the double-headed screw is rotated by the handwheel. Since the two sliders are threadedly connected to the two sections of threads on the double-headed screw and the two sliders are slidably connected to the inner wall of the chute, the two sliders move closer to each other along the axial direction of the double-headed screw, thereby driving the two clamping seats to move closer to each other and tightly press against the steel member, eliminating the damage to the steel truss caused by drilling and welding, and facilitating the fixation of the prism on steel members with different shapes.

[0007] Further, an installation hole is formed through the side wall of the rotating seat. Two symmetrically arranged insertion grooves are formed in the inner wall of the sleeve. The limiting component includes a fixing plate fixed to the inner wall of the installation hole, an insertion block slidably connected to the inner wall of the installation hole and inserted into the insertion groove in a matching manner, and a spring with one end fixed to the side wall of the insertion block. The other end of the spring is fixed to the side wall of the fixing plate. A pressing component for pressing the insertion block is installed on the sleeve.

[0008] By adopting the above technical solution, the insertion block remains inserted into the insertion groove under the elastic force of the spring, thereby fixing the sleeve on the rotating seat and restricting the rotation of the sleeve. When it is necessary to rotate the sleeve, the staff presses the insertion block through the pressing component, so that the insertion block disengages from the insertion groove and enters the installation hole, thereby rotating the sleeve and the clamping seat, facilitating the adjustment of the clamping seat according to steel members with different shapes.

[0009] Further, two symmetrically arranged connection grooves are formed in the side wall of the sleeve. The two connection grooves are respectively communicated with the two insertion grooves. Two groups of pressing components are symmetrically arranged. Each group of pressing components includes a pressing plate slidably connected to the inner wall of the insertion groove, a connecting rod fixed to the side wall of the pressing plate and slidably connected to the inner wall of the connection groove, and an L-shaped plate fixed to the end of the connecting rod away from the pressing plate.

[0010] By adopting the above technical solution, when it is necessary to rotate the sleeve, the staff pinches the two L-shaped plates and moves them closer to each other, so that the connecting rod drives the pressing plate to move towards the insertion block, and the pressing plate squeezes the insertion block into the installation hole, facilitating the rapid release of the limiting effect of the limiting component.

[0011] Further, moving grooves are formed in the side walls of the two clamping seats on the sides away from each other, and a reinforcing component for strengthening the connection with the rectangular steel member is installed on each clamping seat. Each set of the reinforcing components includes a pressing plate slidably connected to the inner wall of the moving groove, a threaded rod penetrating through the pressing plate and threadedly connected thereto. The upper end of the threaded rod is rotatably connected to the inner top wall of the moving groove, and the lower end of the threaded rod penetrates through the inner bottom wall of the moving groove and is rotatably connected. The reinforcing component further includes a star-shaped handle fixed to the lower end of the threaded rod.

[0012] By adopting the above technical solution, when it is necessary to fix on steel members such as square steel pipes, rectangular steel pipes, and I-beams, the pressing plates on the two clamping seats are rotated to face each other. After placing the mounting seat on the steel member and making the clamping seats clamp the steel member through the moving component, the worker rotates the threaded rod through the star-shaped handle. Since the threaded rod is threadedly connected to the pressing plate and the pressing plate is slidably connected to the inner wall of the moving groove, the pressing plate moves along the axial direction of the threaded rod, so that the pressing plate presses the steel member upward, enhancing the stability of the prism fixed on the rectangular steel member.

[0013] Further, rubber sheets are fixed to the inner walls of each arc-shaped groove and the upper surfaces of each pressing plate.

[0014] By adopting the above technical solution, the rubber sheet is made of rubber material and has a large friction coefficient on its surface, increasing the friction between the inner wall of the arc-shaped groove and the upper surface of the pressing plate, and further enhancing the stability of the prism fixation.

[0015] Further, a fixing rod is fixed to the bottom of the slider, the rotating seat is fixed to the lower end of the fixing rod, the diameter of the fixing rod is smaller than that of the rotating seat, a limiting plate is fixed to the upper surface of the sleeve, and the limiting plate is sleeved on the fixing rod and rotatably connected to the fixing rod.

[0016] By adopting the above technical solution, the arrangement of the fixing rod and the limiting plate avoids the situation that the sleeve falls off the rotating seat after releasing the limiting effect of the limiting component, facilitating the rotation and adjustment of the sleeve and the clamping seat.

[0017] Further, a limiting groove is formed in the inner wall of the mounting hole, and a limiting block slidably connected to the inner wall of the limiting groove is fixed to the side wall of the plug-in block.

[0018] By adopting the above technical solution, the limiting block is slidably connected in the limiting groove, which limits the moving range of the plug-in block and avoids the situation that the plug-in block disengages from the mounting hole outward, facilitating the normal use of the limiting component.

[0019] Further, the projected area of the L-shaped plate is larger than the notch area of the connecting groove.

[0020] By adopting the above technical solution, the L-shaped plate shields the notch of the connecting groove, reducing the probability of external dust, sundries, etc. entering the insertion groove through the notch of the connecting groove.

[0021] In summary, the present utility model has the following beneficial effects:

[0022] 1. In this application, the prism is threadedly connected to the threaded hole of the fixing seat. After the limiting component releases the limitation on the sleeve, the sleeve and the clamping seat are rotated according to the shape of the steel structure on the steel truss, so that the arc-shaped grooves of the two clamping seats or the side walls of the clamping seat away from the arc-shaped groove face each other. Then, the sleeve is limited by the limiting component, thereby restricting the rotation of the clamping seat. Then, the mounting seat is placed on the steel member, and the double-headed screw is rotated by the hand wheel. Since the two sliders are threadedly connected to the two sections of threads on the double-headed screw and the two sliders are slidably connected to the inner wall of the chute, the two sliders move closer to each other along the axial direction of the double-headed screw rod, thereby driving the two clamping seats to move closer to each other and clamp the steel member tightly, eliminating the damage to the steel truss caused by drilling and welding, and facilitating the fixation of the prism on steel members of different shapes;

[0023] 2. In this application, the insertion block is kept inserted into the insertion groove under the elastic force of the spring, thereby fixing the sleeve on the rotating seat and restricting the rotation of the sleeve. When the sleeve needs to be rotated, the staff presses the insertion block through the pressing component, so that the insertion block disengages from the insertion groove and enters the installation hole, thereby rotating the sleeve and the clamping seat, which is convenient for adjusting the clamping seat according to steel members of different shapes;

[0024] 3. In this application, when the sleeve needs to be rotated, the staff pinches the two L-shaped plates and moves them closer to each other, so that the connecting rod drives the pressing plate to move towards the insertion block side, and the pressing plate squeezes the insertion block into the installation hole, which is convenient for quickly releasing the limiting effect of the limiting component. Description of the Drawings

[0025] Figure 1 is the overall structural schematic diagram of the embodiment of the present utility model;

[0026] Figure 2 is the cross-sectional structural schematic diagram of the embodiment of the present utility model;

[0027] Figure 3 is Figure 2 the enlarged schematic diagram of part A in

[0028] Figure 4 is the cross-sectional structural schematic diagram of the embodiment of the present utility model for highlighting the reinforcement component.

[0029] In the figure: 1. Mounting base; 101. Chute; 2. Fixed base; 21. Threaded hole; 3. Moving component; 31. Double-headed screw; 32. Handwheel; 33. Slide block; 4. Rotating base; 41. Mounting hole; 42. Limiting groove; 5. Sleeve; 51. Insertion slot; 52. Connection slot; 6. Clamping seat; 61. Arc-shaped groove; 62. Moving groove; 7. Limiting component; 71. Fixed plate; 72. Insertion block; 73. Spring; 8. Pressing component; 81. Pressing plate; 82. Connecting rod; 83. L-shaped plate; 9. Reinforcing component; 91. Tightening plate; 92. Threaded rod; 93. Star-shaped handle; 10. Rubber sheet; 11. Fixed rod; 12. Limiting plate; 13. Limiting block. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] As Figures 1-4 shown, an embodiment of the present application discloses a steel truss deformation monitoring device, including a mounting base 1, a fixed base 2, a moving component 3, a rotating base 4, a sleeve 5, a clamping seat 6, a limiting component 7, and a pressing component 8.

[0032] The mounting base 1 is of a cuboid structure, and a chute 101 is opened at the bottom of the mounting base 1. The fixed base 2 is of a cuboid structure, the fixed base 2 is fixed on the top of the mounting base 1, and a plurality of threaded holes 21 are penetrated through the top of the fixed base 2.

[0033] The moving component 3 is installed on the mounting base 1, and the moving component 3 includes a double-headed screw 31, a handwheel 32, and a slide block 33. The double-headed screw 31 is a rod-shaped structure arranged horizontally, the double-headed screw 31 is penetrated through the side wall of the mounting base 1 and rotatably connected, one end of the double-headed screw 31 is rotatably connected to the inner wall of the chute 101, and two threads with opposite helix directions and equal pitches are arranged on the double-headed screw 31. The handwheel 32 is fixed at the end of the double-headed screw 31 away from the mounting base 1, and the axis of the handwheel 32 coincides with the axis of the double-headed screw 31. The slide block 33 is of a cuboid structure, the slide block 33 is slidably connected to the inner wall of the chute 101, two slide blocks 33 are symmetrically arranged, and the two slide blocks 33 are respectively threadedly connected to the two threads on the double-headed screw 31.

[0034] The rotating seat 4 is a cylindrical structure. There are two rotating seats 4, which are respectively arranged at the bottoms of the two sliders 33. An installation hole 41 is formed through the side wall of the rotating seat 4. There are two sleeves 5, which are respectively sleeved on the two rotating seats 4 and are rotatably connected to the rotating seats 4. Two symmetrically arranged insertion grooves 51 are formed in the inner wall of the sleeve 5, and two symmetrically arranged connection grooves 52 are formed in the side wall of the sleeve 5. The two connection grooves 52 are respectively communicated with the two insertion grooves 51. The axis of the sleeve 5 coincides with the axis of the rotating seat 4. There are two clamping seats 6, which are respectively fixed at the bottoms of the two sleeves 5. Arc-shaped grooves 61 are formed in the side walls of the two clamping seats 6 on the sides close to each other.

[0035] The limiting component 7 is installed on the rotating seat 4 and is used to limit the sleeve 5. The limiting component 7 includes a fixing plate 71, an insertion block 72 and a spring 73. The fixing plate 71 is a rectangular plate structure and is fixed on the inner wall of the installation hole 41. The insertion block 72 is a cuboid structure and is slidably connected to the inner wall of the installation hole 41. One end of the spring 73 is fixed to the side wall of the insertion block 72, and the other end of the spring 73 is fixed to the side wall of the fixing plate 71.

[0036] The pressing component 8 is installed on the sleeve 5 and is used to press the insertion block 72. There are two groups of pressing components 8 arranged symmetrically. Each group of pressing components 8 includes a pressing plate 81, a connecting rod 82 and an L-shaped plate 83. The pressing plate 81 is a plate structure and is slidably connected to the inner wall of the insertion groove 51. The connecting rod 82 is a horizontally arranged rectangular rod structure and is fixed to the side wall of the pressing plate 81. The connecting rod 82 is slidably connected to the inner wall of the connection groove 52. The L-shaped plate 83 is a plate structure with an L-shaped cross section and is fixed to the end of the connecting rod 82 away from the pressing plate 81.

[0037] Insert it into the threaded hole 21 of the prism threaded connection fixing seat 2. By pinching the two L-shaped plates 83 and moving them closer to each other, the connecting rod 82 drives the pressing plate 81 to move towards the insertion block 72, so that the pressing plate 81 presses the insertion block 72, causing the insertion block 72 to disengage from the insertion slot 51 and enter the installation hole 41, releasing the limiting effect of the limiting component 7 on the sleeve 5. Rotate the sleeve 5 and the clamping seat 6 according to the shape of the steel structure on the steel truss, so that the arc-shaped grooves 61 of the two clamping seats 6 or the side walls of the clamping seat 6 away from the arc-shaped groove 61 face each other. When the adjustment is completed, the insertion block 72 automatically enters the insertion slot 51 under the elastic force of the spring 73 and maintains the inserted state, thereby fixing the sleeve 5 on the rotating seat 4 and restricting the rotation of the sleeve 5. Then place the mounting seat 1 on the steel member, and rotate the double-headed screw 31 through the handwheel 32. Since the two sliders 33 are threadedly connected to the two sections of the thread on the double-headed screw 31 and the two sliders 33 are slidably connected to the inner wall of the sliding groove 101, the two sliders 33 move closer to each other along the axial direction of the double-headed screw rod, thereby driving the two clamping seats 6 to move closer to each other and clamp the steel member tightly, avoiding the damage to the steel truss caused by drilling and welding, and facilitating the fixing of the prism on steel members of different shapes.

[0038] To enhance the stability of the prism fixed on the rectangular steel member, moving grooves 62 are provided on the side walls of the two clamping seats 6 away from each other. Each clamping seat 6 is provided with a reinforcement component 9 for strengthening the connection with the rectangular steel member. Each group of reinforcement components 9 includes a pressing plate 91, a threaded rod 92 and a star-shaped handle 93. The pressing plate 91 is a rectangular plate structure, and the pressing plate 91 is slidably connected to the inner wall of the moving groove 62. The threaded rod 92 is arranged through the pressing plate 91 and is threadedly connected. The upper end of the threaded rod 92 is rotatably connected to the inner top wall of the moving groove 62, and the lower end of the threaded rod 92 penetrates through the inner bottom wall of the moving groove 62 and is rotatably connected. The star-shaped handle 93 is fixed to the lower end of the threaded rod 92, and the axis of the star-shaped handle 93 coincides with the axis of the threaded rod 92. When it is necessary to fix on steel members such as square steel pipes, rectangular steel pipes, and I-beams, the pressing plates 91 on the two clamping seats 6 are rotated to face each other. After placing the mounting seat 1 on the steel member and using the moving component 3 to make the clamping seat 6 clamp the steel member tightly, the staff rotates the threaded rod 92 through the star-shaped handle 93. Since the threaded rod 92 is threadedly connected to the pressing plate 91 and the pressing plate 91 is slidably connected to the inner wall of the moving groove 62, the pressing plate 91 moves along the axial direction of the threaded rod 92, so that the pressing plate 91 presses the steel member upward, thereby enhancing the stability of the prism fixed on the rectangular steel member.

[0039] To further enhance the stability of the prism fixation, rubber sheets 10 are fixed on the inner wall of each arc-shaped groove 61 and the upper surface of each pressing plate 91. The rubber sheets 10 are made of rubber material and have a large friction coefficient on their surfaces, increasing the friction force between the inner wall of the arc-shaped groove 61 and the upper surface of the pressing plate 91, thereby further enhancing the stability of the prism fixation.

[0040] To facilitate the rotation of the adjusting sleeve 5 and the clamping seat 6, a fixing rod 11 is fixed to the bottom of the slider 33. The rotating seat 4 is fixed to the lower end of the fixing rod 11. The diameter of the fixing rod 11 is smaller than the diameter of the rotating seat 4. A limiting plate 12 is fixed to the upper surface of the sleeve 5. The limiting plate 12 is sleeved on the fixing rod 11 and is rotatably connected to the fixing rod 11. The arrangement of the fixing rod 11 and the limiting plate 12 avoids the situation where the sleeve 5 falls off the rotating seat 4 after the limiting effect of the limiting component 7 is released, thereby facilitating the rotation of the adjusting sleeve 5 and the clamping seat 6.

[0041] To prevent the insertion block 72 from disengaging outward from the mounting hole 41, a limiting groove 42 is provided on the inner wall of the mounting hole 41. A limiting block 13 is fixed to the side wall of the insertion block 72 and is slidably connected to the inner wall of the limiting groove 42. The limiting block 13 slides in the limiting groove 42, which limits the range of movement of the insertion block 72, thus avoiding the situation where the insertion block 72 disengages outward from the mounting hole 41 and is beneficial to the normal use of the limiting component 7.

[0042] To protect the connecting groove 52 and the insertion groove 51, the projected area of the L-shaped plate 83 is larger than the notch area of the connecting groove 52. The L-shaped plate 83 shields the notch of the connecting groove 52, thereby reducing the probability of external dust, debris, etc. entering the insertion groove 51 through the notch of the connecting groove 52.

[0043] The working principle of a steel truss deformation monitoring device in this embodiment is as follows: The prism is threadedly connected and fixed in the threaded hole 21 of the fixing seat 2. By pinching the two L-shaped plates 83 and moving them closer to each other, the connecting rod 82 drives the pressing plate 81 to move towards the insertion block 72, so that the pressing plate 81 presses the insertion block 72, causing the insertion block 72 to disengage from the insertion groove 51 and enter the mounting hole 41, releasing the limiting effect of the limiting component 7 on the sleeve 5. According to the shape of the steel structure on the steel truss, the sleeve 5 and the clamping seat 6 are rotated so that the arc grooves 61 of the two clamping seats 6 or the side walls of the clamping seat 6 away from the arc groove 61 face each other. When the adjustment is completed, the insertion block 72 automatically enters the insertion groove 51 under the elastic force of the spring 73 and remains in the inserted state, thereby fixing the sleeve 5 on the rotating seat 4 and restricting the rotation of the sleeve 5. Then, the mounting seat 1 is placed on the steel member, and the double-headed screw 31 is rotated by the handwheel 32. Since the two sliders 33 are threadedly connected to the two sections of the thread on the double-headed screw 31 and the two sliders 33 are slidably connected to the inner wall of the sliding groove 101, the two sliders 33 move closer to each other along the axial direction of the double-headed screw, thereby driving the two clamping seats 6 to move closer to each other and tightly clamp the steel member, eliminating the damage to the steel truss caused by drilling and welding, and facilitating the fixing of the prism on steel members of different shapes.

[0044] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. A steel truss deformation monitoring device, comprising a mounting base (1), characterized in that: A fixing base (2) is fixed to the top of the mounting base (1). A plurality of threaded holes (21) are formed through the top of the fixing base (2). A sliding groove (101) is formed at the bottom of the mounting base (1). A moving component (3) is mounted on the mounting base (1). The moving component (3) includes a double-headed screw rod (31) which is arranged through the side wall of the mounting base (1) and is rotatably connected, a hand wheel (32) fixed to one end of the double-headed screw rod (31) away from the mounting base (1), and a slider (33) which is slidably connected to the inner wall of the sliding groove (101). One end of the double-headed screw rod (31) is rotatably connected to the inner wall of the sliding groove (101). Two threads with opposite helix directions and equal pitches are arranged on the double-headed screw rod (31). Two sliders (33) are symmetrically arranged. The two sliders (33) are respectively in threaded connection with the two threads on the double-headed screw rod (31). A rotating seat (4) is arranged at the bottom of each slider (33). A sleeve (5) which is rotatably connected to the rotating seat (4) is sleeved on each rotating seat (4). A clamping seat (6) is fixed to the bottom of each sleeve (5). Arc-shaped grooves (61) are formed in the side walls of the two clamping seats (6) on the side close to each other. A limiting component (7) for limiting the sleeve (5) is mounted on the rotating seat (4).

2. The steel truss deformation monitoring device according to claim 1, wherein: An installation hole (41) is formed through the side wall of the rotating seat (4). Two symmetrically arranged insertion slots (51) are formed in the inner wall of the sleeve (5). The limiting component (7) includes a fixing plate (71) fixed to the inner wall of the installation hole (41), an insertion block (72) which is slidably connected to the inner wall of the installation hole (41) and is in insertion fit with the insertion slot (51), and a spring (73) with one end fixed to the side wall of the insertion block (72). The other end of the spring (73) is fixed to the side wall of the fixing plate (71). A pressing component (8) for pressing the insertion block (72) is mounted on the sleeve (5).

3. The steel truss deformation monitoring device according to claim 2, characterized in that: Two symmetrically arranged connection slots (52) are formed in the side wall of the sleeve (5). The two connection slots (52) are respectively communicated with the two insertion slots (51). Two groups of pressing components (8) are symmetrically arranged. Each group of pressing components (8) includes a pressing plate (81) which is slidably connected to the inner wall of the insertion slot (51), a connecting rod (82) fixed to the side wall of the pressing plate (81) and slidably connected to the inner wall of the connection slot (52), and an L-shaped plate (83) fixed to the end of the connecting rod (82) away from the pressing plate (81).

4. The steel truss deformation monitoring device according to claim 3, characterized in that: On the side walls of the two clamping seats (6) away from each other, moving grooves (62) are formed. On each clamping seat (6), a reinforcing component (9) for strengthening the connection with the rectangular steel member is installed. Each group of the reinforcing components (9) includes a pressing plate (91) slidably connected to the inner wall of the moving groove (62), and a threaded rod (92) penetrating through the pressing plate (91) and threadedly connected thereto. The upper end of the threaded rod (92) is rotatably connected to the inner top wall of the moving groove (62), and the lower end of the threaded rod (92) penetrates through the inner bottom wall of the moving groove (62) and is rotatably connected. The reinforcing component (9) further includes a star-shaped handle (93) fixed to the lower end of the threaded rod (92).

5. The steel truss deformation monitoring device according to claim 4, characterized in that: On the inner wall of each arc-shaped groove (61) and the upper surface of each pressing plate (91), rubber sheets (10) are fixed.

6. The steel truss deformation monitoring device according to claim 5, characterized in that: A fixing rod (11) is fixed to the bottom of the slider (33). The rotating seat (4) is fixed to the lower end of the fixing rod (11). The diameter of the fixing rod (11) is smaller than the diameter of the rotating seat (4). A limiting plate (12) is fixed to the upper surface of the sleeve (5). The limiting plate (12) is sleeved on the fixing rod (11) and is rotatably connected to the fixing rod (11).

7. The steel truss deformation monitoring device according to claim 2, characterized in that: A limiting groove (42) is formed on the inner wall of the mounting hole (41). A limiting block (13) slidably connected to the inner wall of the limiting groove (42) is fixed to the side wall of the plug-in block (72).

8. The steel truss deformation monitoring device according to claim 3, characterized in that: The projected area of the L-shaped plate (83) is larger than the notch area of the connecting groove (52).

Images