Assembly type node angle monitoring device and monitoring method

Abstract

The invention belongs to the field of angle monitoring, and particularly relates to an assembly type node angle monitoring device and a monitoring method.The assembly type node angle monitoring device comprises a straight rod piece and at least two sets of arc-shaped telescopic rods; the arc-shaped telescopic rod comprises an arc-shaped rod I and an arc-shaped rod II; the outer end of the arc-shaped rod I is fixedly connected with one end of the straight rod piece, the outer end of the arc-shaped rod II is used for being rotationally connected to a monitored component I, and the other end of the straight rod piece is used for being fixed to a monitored component II. And the relative positions of the at least two groups of arc-shaped rods I and arc-shaped rods II feed back the relative angles of the monitored component I and the monitored component II. According to the assembly type node angle monitoring device provided by the invention, information of at least two relative angles is realized through the at least two groups of arc-shaped telescopic rods, accurate angle monitoring can be provided, and the monitoring accuracy is improved. And the assembly type node angle monitoring device can be repeatedly disassembled and used, and is suitable for assembly monitoring of various assembly type building nodes.

Description

Technical Field

[0001] The present invention belongs to the field of angle monitoring, and in particular relates to an assembled node angle monitoring device and a monitoring method. Background Art

[0002] In the construction of prefabricated buildings, the assembly accuracy of the nodes is crucial to the stability and safety of the entire structure. Traditional verticality monitoring methods often rely on manual measurement, which is inefficient and has limited accuracy. Although there are automatic measurement equipment at present. For example, the Chinese invention patent "CN116907460A-A prefabricated building corner positioning monitoring device and its use method", but its measurement angle is limited and the structure is relatively complex. Therefore, the development of a device that can automatically and accurately monitor the verticality of prefabricated node assembly is of great significance to improving construction efficiency and structural safety. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an assembled node angle monitoring device and a monitoring method with a simple structure and capable of realizing multi-axis relative angle measurement.

[0004] The present invention provides an assembled node angle monitoring device, comprising a straight rod and at least two groups of arc-shaped telescopic rods; The arc-shaped telescopic rods include an arc-shaped rod I and an arc-shaped rod II, and the arc-shaped rod I and the arc-shaped rod II move on the same arc, and at least two groups of arc-shaped telescopic rods have the same radius and the same center. The outer end of the arc rod I is fixedly connected to one end of the straight rod, the outer end of the arc rod II is used to be rotatably connected to the monitored component I, and the other end of the straight rod is used to be fixed on the monitored component II. The relative positions of at least two groups of arc rods I and arc rods II feed back the relative angles of the monitored components I and II.

[0005] In one embodiment, the arc-shaped telescopic rods are provided in two groups; The arc surfaces of the two groups of arc-shaped telescopic rods are perpendicular and coplanar with the straight rods.

[0006] In one embodiment, the outer end of the arc-shaped rod II is hingedly provided with a hinge seat; The seat body of the articulated seat is used to be fixed on the monitored component I; The hinge axes of the two groups of hinge seats intersect vertically.

[0007] In one embodiment, the arc-shaped rod I is a rod body or a sleeve, the arc-shaped rod II is a sleeve or a rod body, and the rod body is slidably disposed in the sleeve; It also includes an angle scale display device arranged on the sleeve or the rod body.

[0008] In one embodiment, the angle scale display device comprises: The hydraulic cavity formed by the end of the rod body and the sleeve also includes a capillary tube and a hydraulic angle scale connected to the hydraulic cavity. When the relative positions of the arc rod I and the arc rod II change, the hydraulic pressure of the hydraulic cavity changes, and the liquid enters and exits the hydraulic angle scale through the capillary tube to change the value of the hydraulic angle scale.

[0009] In one embodiment, the straight rod member includes a straight rod I and a straight rod II that are telescopically connected to each other; The outer end of the arc rod I is fixedly connected to the outer end of the straight rod I; The outer end of the straight rod II is used to be fixed on the monitored component II.

[0010] In one embodiment, a return spring is provided between the straight rod I and the straight rod II.

[0011] In one of the embodiments, a distance scale display device is provided on the straight rod I and the straight rod II.

[0012] In one embodiment, the outer end of the arc-shaped rod II is rotatably connected to a connecting plate I, and / or the end of the straight rod member facing away from the arc-shaped telescopic rod is fixedly connected to a connecting plate II; The connecting plate I and the connecting plate II are parallel to each other. The connecting plate I is used for being detachably fixed vertically on the monitored component I, and the connecting plate II is used for being detachably fixed vertically on the monitored component II.

[0013] The present invention also provides a method for monitoring the angle of an assembled node, using the assembled node angle monitoring device, comprising the following steps: rotating the outer end of the arc rod II to be connected to the monitored component I, and fixing the end of the straight rod away from the arc telescopic rod to be connected to the monitored component II; The relative angle between the monitored component I and the monitored component II is reflected by the relative position feedback of at least two groups of arc-shaped rods I and arc-shaped rods II.

[0014] The beneficial effect of the present invention is that the prefabricated node angle monitoring device provided by the present invention can provide accurate angle monitoring by realizing at least two relative angle information through at least two sets of arc-shaped telescopic rods, and the prefabricated node angle monitoring device can be disassembled and used repeatedly, and is suitable for various prefabricated building node assembly monitoring. In addition, it has a simple structure and strong practicality, and can significantly improve the efficiency and structural safety of prefabricated building construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 It is a schematic diagram of the structure of the assembled node angle monitoring device of the present invention in use state; Attached Figure 2 It is a structural schematic diagram of the assembled node angle monitoring device of the present invention; Attached Figure 3 It is a partial structural schematic diagram of the angle scale display device in the assembled node angle monitoring device of the present invention; Attached Figure 4 It is a schematic diagram of the local structure of the straight rod in the assembled node angle monitoring device of the present invention.

[0016] In the figure, 1-straight rod; 101-straight rod I; 102-straight rod II; 1021-fastening plate; 2-arc-shaped telescopic rod; 201-arc-shaped rod I; 202-arc-shaped rod II; 3-hinge seat; 4-hydraulic chamber; 5-capillary; 6-hydraulic angle scale; 7-reset spring; 8-connecting plate I; 801-vertical mounting plate I; 802-mounting hole I; 803-mounting hole II; 9-connecting plate II; 901-vertical mounting plate II; 902-mounting hole III; 903-mounting hole IV; 10-monitored component I; 11-monitored component II. DETAILED DESCRIPTION

[0017] 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.

[0018] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0019] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] As attached Figure 1 -Attached Figure 4 As shown, the present invention provides an assembled node angle monitoring device, which is used to monitor the relative angle of the monitored component I10 and the monitored component II11, and can be applied to the assembled node verticality monitoring of assembled building structures, including a straight rod 1 and at least two groups of arc-shaped telescopic rods 2; The arc-shaped telescopic rod 2 includes an arc-shaped rod I 201 and an arc-shaped rod II 202, and the arc-shaped rod I 201 and the arc-shaped rod II 202 move on the same arc, that is, the arc-shaped rod I 201 and the arc-shaped rod II 202 are coplanar, have the same radius, and have the same center. At this time, the arc-shaped rod I 201 and the arc-shaped rod II 202 move relative to each other on the same arc to achieve telescoping, that is, the two arc end points of the arc-shaped telescopic rod 2 formed by the combination of the arc-shaped rod I 201 and the arc-shaped rod II 202 can move closer to and away from each other, and at least two groups of arc-shaped telescopic rods 2 have the same radius and the same center, that is, the multiple groups of arc-shaped telescopic rods 2 are not coplanar and are located on the same spherical surface; The outer ends of at least two of the arc-shaped rods I 201 are fixedly connected to one end of the straight rod 1. At this time, the outer ends of the plurality of arc-shaped rods I 201 and one end of the straight rod 1 are fixed to each other at the same point. The outer end of the arc-shaped rod II 202 is used for rotational connection to the monitored component I 10. It should be noted that the outer end of the arc-shaped rod I 201 is the end of the arc-shaped rod I 201 away from the arc-shaped rod II 202, and the outer end of the arc-shaped rod II 202 is the end of the arc-shaped rod II 202 away from the arc-shaped rod I 201. The other end of the straight rod 1 One end is used to be fixed on the monitored component Ⅱ11, and is fixedly connected to the monitored component Ⅱ11 at the end of the straight rod 1. After the outer ends of multiple arc rods Ⅱ202 are rotatably connected to the monitored component Ⅰ10, the relative positions of at least two groups of arc rods Ⅰ201 and arc rods Ⅱ202 feed back the relative angles of the monitored components Ⅰ10 and Ⅱ11. At this time, the user can obtain the relative angles of the monitored components Ⅰ10 and Ⅱ11 by observing the relative positions of the two groups of arc rods Ⅰ201 and arc rods Ⅱ202.

[0023] The angle fed back by the relative position of each set of arc rods Ⅰ201 and arc rods Ⅱ202 is a relative angle with a virtual axis perpendicularly passing through the circular surface where the arc telescopic rods 2 are located and the center of the circle as the axis. At this time, the two sets of arc telescopic rods 2 can monitor two relative angles at the same time, thereby providing accurate angle information of the monitored components Ⅰ10 and Ⅱ11.

[0024] The assembled node angle monitoring device provided by the present invention realizes at least two relative angle information through at least two sets of arc-shaped telescopic rods 2, can provide accurate angle monitoring, and the assembled node angle monitoring device can be disassembled and used repeatedly, and is suitable for various assembled building node assembly monitoring. In addition, it has a simple structure and strong practicality, and can significantly improve the efficiency and structural safety of assembled building construction.

[0025] In one preferred embodiment, refer to the attached Figure 2 , the arc-shaped telescopic rods 2 are provided in two groups; The arc surfaces of the two groups of arc-shaped telescopic rods 2 are perpendicular and coplanar with the straight rod 1. At this time, the axis position of the straight rod 1 is defined as the z-axis, and the z-axis passes vertically through one group of arc-shaped telescopic rods 2 (attached Figure 2 The virtual axis of the circular surface and the center of the circle where the arc-shaped telescopic rod 2 on the right side of the middle is located is defined as the x-axis, which vertically passes through another set of arc-shaped telescopic rods 2 (attached Figure 2The virtual axis of the circular surface and the center of the arc-shaped telescopic rod 2 on the left side of the middle is defined as the y-axis. At this time, the structure of the assembled node angle monitoring device can form a standard xyz coordinate axis system, and the monitored component II11 is consistent with the standard xyz coordinate axis system benchmark, so that the deflection angle of the monitored component I10 relative to the x-axis and y-axis in the standard xyz coordinate axis can be monitored, and the relative angle of the monitored component I10 and the monitored component II11 can be accurately obtained. In this embodiment, the relative angle of the monitored component I10 and the monitored component II11 in the xyz coordinate axis system can be obtained by setting two sets of arc-shaped telescopic rods 2. Compared with the current single-axis measurement, the monitoring is more accurate, the structure is simpler, and the angle acquisition is more convenient and quick.

[0026] In one embodiment, the outer end of the arc-shaped rod II 202 is hingedly provided with an articulated seat 3, and the articulated axis of the articulated seat 3 is colinear with the radius of the arc-shaped rod II 202; The seat body of the articulated seat 3 is used to be fixed on the monitored component Ⅰ10. Preferably, a bolt fastener is provided on the seat body of the articulated seat 3 to detachably fix the seat body of the articulated seat 3 on the monitored component Ⅰ10; The hinge axes of the two groups of hinge seats 3 intersect vertically. At this time, the hinge axis of the hinge seat 3 connected to the arc telescopic rod 2 with the virtual axis as the x-axis is on the y-axis, and the hinge axis of the hinge seat 3 connected to the arc telescopic rod 2 with the virtual axis as the y-axis is on the x-axis. In this embodiment, the hinge seat 3 limits the rotation direction of the arc rod II 202, ensuring that it can only be telescopically rotated in its defined direction, thereby improving the measurement accuracy.

[0027] In other embodiments, the outer end of the arc rod II 202 can be fixed to the monitored component I 10 via a ball joint.

[0028] In one embodiment, the arc rod I 201 is a rod body or a sleeve, the arc rod II 202 is a sleeve or a rod body, and the rod body is slidably arranged in the sleeve, that is, one of the arc rod I 201 and the arc rod II 202 is a sleeve, and the other is a rod body, so as to facilitate the combination to form an arc telescopic rod 2. Preferably, the arc rod I 201 is a sleeve, and the arc rod II 202 is a rod body, so as to facilitate the fixed connection between the arc rod II 202 and the straight rod 1; It also includes an angle scale display device arranged on the sleeve or the rod body, and the angle scale display device is used to more easily identify the relative position of the arc rod I 201 and the arc rod II 202. Among them, the angle scale display device can be a measuring ruler arranged on the sleeve. In this case, the sleeve is made of a transparent material, and the position of the rod body on the measuring ruler can be intuitively observed, thereby quickly and accurately obtaining the relative position of the arc rod I 201 and the arc rod II 202. When in use, the angle scale display device can be calibrated in advance to accurately feedback the relative angle of the monitored component I 10 and the monitored component II 11.

[0029] In one preferred embodiment, refer to the attached Figure 3 The angle scale display device includes a hydraulic chamber 4 formed by the end of the rod body and the inner part of the sleeve, the hydraulic chamber 4 is filled with liquid, and also includes a capillary 5 and a hydraulic angle scale 6 connected to the hydraulic chamber 4. When the arc rod I 201 and the arc rod II 202 are relatively extended and retracted, the capillary 5 transmits the liquid to the hydraulic angle scale 6 according to the pressure, and the hydraulic angle scale 6 displays the hydraulic pressure as an angle scale indication (which can be calibrated in advance) through the relationship between the hydraulic pressure and the angle. When the relative position of the arc rod I 201 and the arc rod II 202 changes, the hydraulic pressure of the hydraulic chamber 4 changes, and the liquid enters and exits the hydraulic angle scale 6 through the capillary 5 to change the value of the hydraulic angle scale 6.

[0030] In this embodiment, the use of hydraulic changes to reflect changes in rotation angle avoids the use of built-in batteries or external power supplies, so that the monitoring device has the characteristics of green, low carbon and high adaptability, and the repeatable disassembly and assembly design of the device enables it to be reused and is suitable for assembly and monitoring of various prefabricated building nodes.

[0031] In one embodiment, the straight rod 1 includes a straight rod Ⅰ101 and a straight rod Ⅱ102 which are telescopically connected to each other, that is, the straight rod 1 can be telescopic, and thus can adapt to the change in the relative distance between the monitored component Ⅰ10 and the monitored component Ⅱ11, thereby improving the adaptability of the angle monitoring method; At this time, the outer end of the arc rod Ⅰ201 is fixedly connected to the outer end of the straight rod Ⅰ101; The outer end of the straight rod II 102 is used to be fixed on the monitored component II 11. Preferably, the outer end of the straight rod II 102 is provided with a fastening plate 1021, and the fastening plate 1021 is used to be detachably connected to the monitored component II 11. It should be noted that the outer end of the straight rod I 101 is the end of the straight rod I 101 away from the straight rod II 102, and the outer end of the straight rod II 102 is the end of the straight rod II 102 away from the straight rod I 101.

[0032] In one embodiment, referring to the attached Figure 4A return spring 7 is provided between the straight rod Ⅰ101 and the straight rod Ⅱ102, that is, the straight rod 1 is an elastic telescopic rod, which can ensure the structural stability and compactness of the straight rod 1.

[0033] In one embodiment, the straight rod Ⅰ101 and the straight rod Ⅱ102 are provided with a distance scale display device. In this case, the straight rod 1 can be used to monitor the relative distance between the monitored component Ⅰ10 and the monitored component Ⅱ11, thereby improving the monitoring capability of the assembled node angle monitoring device. Preferably, one of the straight rod Ⅰ101 and the straight rod Ⅱ102 is a straight rod, and the other is a straight tube. The straight rod is slidably sleeved in the straight tube. In this case, the distance scale display device can be a scale set on the wall of the straight tube, and the straight tube is made of transparent material. By observing the position of the straight rod on the scale, the relative distance between the monitored component Ⅰ10 and the monitored component Ⅱ11 can be fed back.

[0034] In one embodiment, the outer end of the arc-shaped rod II 202 is rotatably connected to a connecting plate I8, and / or the end of the straight rod 1 away from the arc-shaped telescopic rod 2 is fixedly connected to a connecting plate II9. Specifically, the connecting plate II9 is ​​fixedly connected to the straight rod II 102. When a fastening plate 1021 is provided at the outer end of the straight rod II 102, the connecting plate II9 is ​​detachably connected to the fastening plate 1021. The connecting plate I8 is used for being detachably fixed vertically on the monitored component I10, and the connecting plate II9 is ​​used for being detachably fixed vertically on the monitored component II11.

[0035] When the connecting plate Ⅰ8 and the connecting plate Ⅱ9 are not provided, the monitored component Ⅰ10 and the monitored component Ⅱ11 are two plates parallel to each other; When only the connecting plate Ⅰ8 or only the connecting plate Ⅱ9 is provided, the monitored component Ⅰ10 and the monitored component Ⅱ11 are two mutually perpendicular plates; When the connecting plate I8 and the connecting plate II9 are provided at the same time, and the connecting plate I8 and the connecting plate II9 are parallel to each other, the monitored component I10 and the monitored component II11 can be two coplanar plates; Preferably, the arc rod Ⅱ202 is detachably connected to the connecting plate Ⅰ8, and the straight rod 1 is detachably connected to the connecting plate Ⅱ9, so that they can be adaptively installed according to the states of the monitored components Ⅰ10 and Ⅱ11, so that the assembled node angle monitoring device can adapt to the relative angle monitoring of the monitored components Ⅰ10 and Ⅱ11 that are parallel, vertical or coplanar to each other.

[0036] Preferably, a vertical mounting plate Ⅰ801 is provided at one end of the connecting plate Ⅰ8, and a mounting hole Ⅰ802 is provided on the vertical mounting plate Ⅰ801. The vertical mounting plate Ⅰ801 can be detachably arranged on the monitored component Ⅰ10 through the cooperation of the mounting hole Ⅰ802 and the fastener. A mounting hole Ⅱ803 is provided on the plate surface of the connecting plate Ⅰ8, and the arc rod Ⅱ202 (specifically the seat body of the articulated seat 3) can be detachably arranged on the connecting plate Ⅰ8 through the fastener and the mounting hole Ⅱ803.

[0037] Preferably, a vertical mounting plate II901 is provided at one end of the connecting plate II9, and a mounting hole III902 is provided on the vertical mounting plate II901. The vertical mounting plate II901 can be detachably arranged on the monitored component II11 through the cooperation of the mounting hole III902 and the fastener, and a mounting hole IV903 is provided on the plate surface of the connecting plate II9. The straight rod II102 (specifically the fastening plate 1021) can be detachably arranged on the connecting plate I8 through the fastener and the mounting hole II803.

[0038] The present invention also provides a method for monitoring the angle of an assembled node, using the assembled node angle monitoring device, comprising the following steps: rotating the outer end of the arc rod II 202 to be connected to the monitored component I 10, and fixing the end of the straight rod 1 away from the arc telescopic rod 2 to be connected to the monitored component II 11; The relative angle between the monitored component Ⅰ10 and the monitored component Ⅱ11 is reflected by the relative position feedback of at least two groups of arc rods Ⅰ201 and arc rods Ⅱ202.

[0039] In a specific embodiment, the assembled node angle monitoring device is used to monitor the splicing of prefabricated components above and below the node (the monitored component I10 and the monitored component II11 are coplanar), and when two groups of arc-shaped telescopic rods 2 are provided, a dual-axis assembled node angle monitoring device is formed. When the prefabricated components above and below the node are spliced, it is necessary to measure the relative rotation angle between the two prefabricated components I10 and II11 to control the verticality of the prefabricated components. Figure 1 , the angle monitoring method comprises the following steps: S1, fix the connecting plate II9 to the surface of the monitored component II11 through the bolt holes reserved on the surface of the monitored component II11; S2, fixing the connecting plate Ⅰ8 connected to the connecting plate Ⅰ8 through the seat body of the hinge seat 3 to the surface of the monitored component Ⅰ10 through the bolt holes reserved on the surface of the monitored component Ⅰ10; S3, the fastening plate 1021 of the straight rod II 102 is connected to the connecting plate II 9 by bolts, so that the entire assembled node angle monitoring device is fixed on the monitored component I 10 and the monitored component II 11; S4, observing the relative positions of at least two groups of arc-shaped rods Ⅰ 201 and arc-shaped rods Ⅱ 202 to feedback the relative angles of the monitored components Ⅰ 10 and Ⅱ 11, specifically including: When the monitored component I10 and the monitored component II11 are completely closely assembled and coplanar with no relative rotation angle, the rotation angle readings of the two hydraulic rotation angle scales 6 are zero; When the monitored component Ⅰ10 and the monitored component Ⅱ11 generate relative rotation angles around the x-axis and y-axis and When the virtual axis is the arc telescopic rod 2 (attached Figure 2 The arc-shaped telescopic rod on the left side of the middle rotates around the x-axis , the arc-shaped telescopic rod 2 (attached) with the virtual axis being the x-axis Figure 2 The arc-shaped telescopic rod 2 on the right side of the middle) extends or shortens the arc-shaped rod II 202. At this time, the hydraulic pressure in the hydraulic chamber 4 of the arc-shaped telescopic rod 2 whose virtual axis is the x-axis changes, and the angle corresponding to the hydraulic pressure change is changed. The display is on the hydraulic angle scale 6, and the arc telescopic rod 2 (attached) with the virtual axis as the x-axis Figure 2 The arc-shaped telescopic rod on the right side of the middle 2) The relative rotation angle around the y-axis , the arc-shaped telescopic rod 2 (attached) with the virtual axis being the y-axis Figure 2 The arc-shaped telescopic rod 2 on the left side of the middle) The arc-shaped rod II 202 is extended or shortened. At this time, the hydraulic pressure in the hydraulic chamber 4 corresponding to the arc-shaped telescopic rod 2 with the virtual axis as the y-axis changes, and the angle corresponding to the hydraulic pressure change is changed. It is displayed on the hydraulic angle scale 6. In this way, the relative angle changes in the x-direction and the y-direction can be measured simultaneously by one device.

[0040] The above is only an embodiment and does not limit the present invention in any way. Any person skilled in the art can use the above disclosed technical contents to make many possible changes, modifications or modifications to the technical solutions of the present invention into equivalent embodiments of equivalent changes without departing from the scope of the technical solutions of the present invention. Therefore, any simple modification, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the scope of protection of the technical solutions of the present invention.

Claims

1. An assembled node angle monitoring device, characterized in that: It comprises a straight rod (1) and at least two groups of arc-shaped telescopic rods (2); The arc-shaped telescopic rod (2) comprises an arc-shaped rod I (201) and an arc-shaped rod II (202), the arc-shaped rod I (201) and the arc-shaped rod II (202) move on the same arc, and at least two groups of arc-shaped telescopic rods (2) have the same radius and the same center. The outer end of the arc rod I (201) is fixedly connected to one end of the straight rod (1), the outer end of the arc rod II (202) is used for rotationally connecting to the monitored component I (10), and the other end of the straight rod (1) is used for fixing to the monitored component II (11), and the relative positions of at least two groups of arc rods I (201) and arc rods II (202) are used to feed back the relative angles of the monitored components I (10) and II (11).

2. The assembled node angle monitoring device according to claim 1, characterized in that: The arc-shaped telescopic rods (2) are provided in two groups; The arc surfaces of the two groups of arc-shaped telescopic rods (2) are perpendicular and coplanar with the straight rod (1).

3. The assembled node angle monitoring device according to claim 2, characterized in that: The outer end of the arc-shaped rod II (202) is hingedly provided with a hinge seat (3); The seat body of the hinged seat (3) is used to be fixed on the monitored component I (10); The hinge axes of the two groups of hinge seats (3) intersect vertically.

4. The assembled node angle monitoring device according to claim 1, characterized in that: The arc-shaped rod I (201) is a rod body or a sleeve, the arc-shaped rod II (202) is a sleeve or a rod body, and the rod body is slidably arranged in the sleeve; It also includes an angle scale display device arranged on the sleeve or the rod body.

5. The assembled node angle monitoring device according to claim 4 is characterized in that: The angle scale display device comprises a hydraulic chamber (4) formed by the end of the rod body and the inner part of the sleeve, and also comprises a capillary tube (5) and a hydraulic angle scale (6) communicating with the hydraulic chamber (4); when the relative positions of the arc rod I (201) and the arc rod II (202) change, the hydraulic pressure of the hydraulic chamber (4) changes, and liquid flows into and out of the hydraulic angle scale (6) through the capillary tube (5), thereby changing the value of the hydraulic angle scale (6).

6. The assembled node angle monitoring device according to any one of claims 1 to 5, characterized in that: The straight rod member (1) comprises a straight rod I (101) and a straight rod II (102) which are telescopically connected to each other; The outer end of the arc-shaped rod I (201) is fixedly connected to the outer end of the straight rod I (101); The outer end of the straight rod II (102) is used to be fixed on the monitored component II (11).

7. The assembled node angle monitoring device according to claim 6 is characterized in that: A return spring (7) is provided between the straight rod I (101) and the straight rod II (102).

8. The assembled node angle monitoring device according to claim 6, characterized in that: The straight rod I (101) and the straight rod II (102) are provided with distance scale display devices.

9. The assembled node angle monitoring device according to any one of claims 1 to 5, 7 and 8, characterized in that: The outer end of the arc-shaped rod II (202) is rotatably connected to a connecting plate I (8), and / or the end of the straight rod (1) facing away from the arc-shaped telescopic rod (2) is fixedly connected to a connecting plate II (9); The connecting plate I (8) is used to be detachably fixed vertically on the monitored component I (10), and the connecting plate II (9) is used to be detachably fixed vertically on the monitored component II (11).

10. A method for monitoring the angle of an assembled node, characterized in that: Using the assembled node angle monitoring device as described in any one of claims 1 to 9 comprises the following steps: rotating the outer end of the arc rod II (202) to be connected to the monitored component I (10), and fixing the end of the straight rod (1) away from the arc telescopic rod (2) to be connected to the monitored component II (11); The relative angle between the monitored component I (10) and the monitored component II (11) is reflected by the relative position feedback of at least two groups of arc-shaped rods I (201) and arc-shaped rods II (202).

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