Bridge expansion joint deformation monitoring device

Abstract

The invention relates to the technical field of bridge expansion joint monitoring, in particular to a bridge expansion joint deformation monitoring device which comprises an infrared monitoring sensor, connecting structures are arranged in front of and behind the infrared monitoring sensor, connecting rods are arranged on the two sides of each connecting structure respectively, and mounting structures are arranged on the left side and the right side of the infrared monitoring sensor respectively. According to the bridge expansion joint deformation monitoring device, when a worker installs monitoring equipment, by means of cooperation of the connecting rods and the installation structures, the installation speed is increased to a certain degree, meanwhile, it can be guaranteed that the central axis of the monitoring equipment coincides with the central axis of a bridge expansion joint, and the monitoring efficiency is improved. The infrared emission angle deviation is avoided, and the monitoring effect of the bridge expansion joint is ensured by improving the measurement precision.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge expansion joint monitoring, in particular to a bridge expansion joint deformation monitoring device. BACKGROUND

[0002] A bridge is usually composed of a bridge deck structure and a pier. In daily use, the bridge will expand and contract due to temperature changes. To alleviate the structural rupture that may be caused by this phenomenon, the bridge is often designed in multiple sections, i.e., a gap is reserved between each section of the bridge body, which is called an expansion joint. To ensure the safety of the bridge, the width of the expansion joint needs to be continuously monitored. If the expansion joint becomes too wide or too narrow due to excessive expansion and contraction, it may damage the bridge structure and even cause safety accidents. Therefore, a special monitoring device must be used to measure the changes in the expansion joint in real time to ensure that it is always within a safe range.

[0003] At present, the displacement monitoring device commonly used in bridge construction is rigidly connected to the bridge body. When the bridge deforms due to thermal expansion and contraction, this rigid connection will force the monitoring device to deform rigidly, which will damage the equipment and affect its normal function and service life.

[0004] For example, a bridge construction displacement monitoring device with publication number CN118857113B includes an infrared monitoring sensor, a connection structure is arranged on the front and rear of the infrared monitoring sensor, the connection structure includes a fixed ball seat, a ball hinge body is rotatably connected inside the fixed ball seat, a retaining structure is arranged on the proximal end of two connecting rods two, the retaining structure includes a connecting ring one and a connecting ring two, the proximal end of two connecting rods two is fixedly connected with the connecting ring one, two rotating rods one are rotatably connected to the inner circle of the connecting ring one, the proximal end of two rotating rods one is rotatably connected with the outer surface of the connecting ring two, two rotating rods two are rotatably connected to the inner circle of the connecting ring two, a connecting body is rotatably connected to the proximal end of two rotating rods two, the bottom of the infrared monitoring sensor is fixedly connected with the top of the connecting body, and a counterweight is fixedly installed at the bottom of the connecting body.

[0005] However, we found in actual use that the fixed ball seat, as the basic installation component of the entire monitoring device, directly affects the monitoring accuracy. During installation, the two fixed ball seats must be accurately aligned and installed to ensure that the central axis of the infrared monitoring sensor coincides with the center line of the bridge expansion joint. Deviation in the installation position will cause the infrared emission angle to deviate, resulting in a cosine error, affecting the measurement results and reducing the monitoring effect on the bridge expansion joint.

[0006] Therefore, we propose a bridge expansion joint deformation monitoring device. SUMMARY

[0007] The technical problem to be solved by the present application is: how to design a bridge expansion joint deformation monitoring device which can avoid equipment damage and facilitate the installation of an infrared monitoring sensor. To solve the above technical problems, the present application provides a bridge expansion joint deformation monitoring device, which comprises an infrared monitoring sensor, a connecting structure is arranged in front of and behind the infrared monitoring sensor, a connecting rod is arranged on the two sides of the connecting structure, an installation structure is arranged on the left and right sides of the infrared monitoring sensor, and the two connecting rods are arranged between the two installation structures.

[0008] In some embodiments, the installation structure comprises a positioning seat arranged on one side of the infrared monitoring sensor, a pre-positioning piece is arranged at the two ends of the positioning seat, an adjusting slot is formed in the middle of the positioning seat, a synchronous adjusting piece is arranged on the positioning seat, a receiving rod is arranged on the two sides of the synchronous adjusting piece, a clamping piece is arranged between the receiving rod and the synchronous adjusting piece, and a rotating positioning piece is arranged at the two ends of each receiving rod.

[0009] In some embodiments, displacement sliding grooves are formed on the two sides of the positioning seat, the pre-positioning piece comprises a positioning spring arranged in the displacement sliding groove, a pre-positioning rod is arranged at the end of the positioning spring, a plug-in groove is formed in the positioning seat and the pre-positioning rod, and a plug-in plate is connected to the positioning seat by a wire.

[0010] In some embodiments, displacement sliding grooves are formed on the two sides of the positioning seat, the synchronous adjusting piece comprises a rotating shaft rotatably arranged in the adjusting slot, the rotating shaft extends to the inside of the displacement sliding groove at the two ends, and different direction screws are arranged at the two ends of the rotating shaft, a screw sleeve is threadedly connected to the screw, and a sliding block connected to the screw sleeve is slidably arranged in the displacement sliding groove.

[0011] In some embodiments, the clamping piece comprises a plug-in plate two arranged on the receiving rod, a plug-in groove two is formed in the sliding block to cooperate with the plug-in plate two, a return spring is arranged in the plug-in groove two, a clamping block is arranged on the return spring, and a clamping groove is arranged on the plug-in plate two to cooperate with the clamping block.

[0012] In some embodiments, the rotating positioning piece comprises a rotating shaft rotatably arranged on the receiving rod, an installation plate is arranged on the rotating shaft, a torsional spring is sleeved outside the rotating shaft, and the two ends of the torsional spring are connected to the installation plate and the receiving rod, respectively.

[0013] In some embodiments, the receiving rod is provided with a socket on each side, the connecting rod is inserted into the two adjacent sockets, the connecting structure comprises a buffer provided on the connecting rod, the infrared monitoring sensor is provided with a holding structure at the bottom, vertical plates are provided on both sides of the holding structure, and an elastic member is provided between the vertical plates and the buffer.

[0014] In some embodiments, the buffer comprises a fixed shaft provided on the connecting rod, a shaft sleeve is slidably provided on the fixed shaft, a buffer spring is provided between the two shaft sleeves, and a deflection rod is rotatably provided on each of the shaft sleeves.

[0015] In some embodiments, the elastic member comprises a synchronous plate provided between the two connecting seats, an elastic rod is provided between the vertical plates and the synchronous plate, and a fastening bolt is provided on the elastic rod.

[0016] In some embodiments, the vertical plate is composed of a vertical sliding frame provided at the end of the elastic rod and a vertical sliding plate provided on the holding structure, a wedge-shaped block is provided on the vertical sliding plate, a pressing plate that cooperates with the wedge-shaped block is provided on the synchronous plate, the vertical sliding plate extends to the outside of the vertical sliding frame at the top, flexible plate bodies are provided on both sides of the top of the vertical sliding plate, the end of the flexible plate body is bent to form a downward flange.

[0017] The present application has at least the following advantages: 1. The cooperation of the connecting rod and the mounting structure improves the installation speed to a certain extent when the staff installs the monitoring device, and ensures that the central axis of the monitoring device coincides with the center line of the bridge expansion joint, avoids the deviation of the infrared emission angle, and improves the measurement accuracy to ensure the monitoring effect of the bridge expansion joint.

[0018] 2. Part of the mounting structure is designed to be detachable, which can be recycled and reused after the installation of the monitoring device. This design makes the parts of the device closely connected, the layout is reasonable, and the stability and modularity of the whole structure are ensured, which is convenient for installation, disassembly and maintenance.

[0019] 3. The pre-positioning member on the mounting structure allows the positioning seat to be in contact and fit on the end face of the two side beams in advance, providing a basis for accurate installation of the monitoring device and improving the installation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the overall structure of the present application; Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 3 It is a schematic diagram of the overall front view structure of the present application; Figure 4 It is a schematic diagram of the overall side view structure of the present application; Figure 5 It is a schematic diagram of the overall front view structure of the present application; Figure 6 It is a schematic diagram of the overall partial structure explosion of the present application; Figure 7 It is a schematic diagram of the single positioning seat local structure of the present application; Figure 8 It is a schematic diagram of the overall front view structure of the present application; Figure 7 It is another schematic diagram of the overall front view structure of the present application; Figure 9 It is a schematic diagram of the overall front view structure of the present application; Figure 8 It is a schematic diagram of the enlarged structure of area A in the present application; Figure 10 It is a schematic diagram of the monitoring structure of the present application after installation; Figure 11 It is a schematic diagram of the overall front view structure of the present application; Figure 10 It is a schematic diagram of the overall front view structure of the present application; Figure 12 It is a schematic diagram of the single bearing rod structure of the present application.

[0021] In the figure: 1, infrared monitoring sensor; 2, connecting structure; 21, plug-in seat; 22, retaining structure; 23, vertical plate; 3, buffer; 31, fixed shaft; 32, shaft sleeve; 33, buffer spring; 34, deflection rod; 35, connecting seat; 4, telescopic part; 41, synchronous plate; 42, telescopic rod; 43, fastening bolt; 5, connecting rod; 6, mounting structure; 61, positioning seat; 62, bearing rod; 7, pre-positioning part; 71, positioning spring; 72, pre-positioning rod; 73, plug-in slot one; 74, plug-in plate one; 8, synchronous adjusting part; 81, rotating shaft; 82, screw rod; 83, screw sleeve; 84, sliding block; 9, clamping part; 91, plug-in plate two; 92, plug-in slot two; 93, return spring; 94, clamping block; 95, clamping slot; 10, rotating positioning part; 101, rotating shaft; 102, mounting plate; 103, torsional spring; 11, vertical sliding frame; 12, vertical sliding plate; 13, wedge block; 14, extrusion plate; 15, flexible plate body. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only 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 skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Example 1 Please refer to Figures 1-12 The present application provides a technical solution: A bridge expansion joint deformation monitoring device, including infrared monitoring sensor 1, infrared monitoring sensor 1 is provided with connecting structure 2 in front and back, the connecting structure 2 both sides are provided with the link rod 5 respectively, infrared monitoring sensor 1 is provided with mounting structure 6 left and right, two The link rod 5 is arranged between two mounting structures 6.

[0024] Infrared monitoring sensor 1 is installed between two link rods 5 through connecting structure 2, and the link rod 5 is fixed through mounting structure 6 and the adjacent beam body end face, when infrared monitoring sensor 1 is installed, because the top of infrared monitoring sensor 1 is higher than the top height of link rod 5, the top of its infrared monitoring sensor 1 will emit infrared rays to both end beam bodies, the length of the infrared rays is the length of expansion joint, the length of the infrared rays is monitored to monitor the displacement of beam body due to thermal expansion and contraction.

[0025] When the beam body expands due to heat, the two beam bodies emit position to each other, drive two connecting structures 2 to move towards each other, and the infrared monitoring sensor 1 does not displace relative to the two beam bodies, so that the length of the infrared emitted by the infrared monitoring sensor 1 is shortened, that is, the expansion joint is narrowed, when the beam body shrinks due to cold, its movement is the same as above, that is, the expansion joint is widened.

[0026] The mounting structure 6 includes a positioning seat 61 provided on one side of the infrared monitoring sensor 1, the positioning seat 61 is provided with a pre-positioning piece 7 at both ends, the positioning seat 61 is provided with an adjusting groove in the middle, the positioning seat 61 is provided with a synchronous adjusting piece 8, the synchronous adjusting piece 8 is provided with a receiving rod 62 on both sides, the receiving rod 62 and the synchronous adjusting piece 8 are provided with a clamping piece 9, and the receiving rod 62 is provided with a rotating positioning piece 10 at both ends.

[0027] The positioning seat 61 is provided with a displacement sliding groove one on both sides, the pre-positioning piece 7 includes a positioning spring 71 provided in the displacement sliding groove one, the positioning spring 71 is provided with a pre-positioning rod 72 at the end, the positioning seat 61 and the pre-positioning rod 72 are provided with a plug-in groove one 73, and the positioning seat 61 is connected with a plug-in plate one 74 through a wire rope.

[0028] The displacement sliding groove one is provided on the side edge of the positioning seat 61, when the staff pulls out the plug-in plate one 74 from the plug-in groove one 73, the plug-in plate one 74 cancels the locking of the pre-positioning rod 72, and under the action of the elastic force of the positioning spring 71, the pre-positioning rod 72 is pushed out from the displacement sliding groove one until it contacts the beam body end face, the other side is also operated synchronously, so that one positioning seat 61 is fixed in the expansion joint between the adjacent beam bodies.

[0029] The shift sliding groove one is internally provided with a telescopic rod structure, and the positioning spring 71 is sleeved outside the rod structure, which can provide further guiding and limiting for the shift of the pre-positioning rod 72.

[0030] The positioning seat 61 is provided with a shift sliding groove two on both sides, the synchronous adjusting part 8 comprises a rotating shaft 81 rotatably arranged in the adjusting slot, the rotating shaft 81 extends to the inside of the shift sliding groove two at both ends, and the rotating shaft 81 is provided with a screw 82 with different directions at both ends, the screw 82 is threadedly connected with a sleeve 83, and the shift sliding groove two is slidably provided with a sliding block 84 connected with the sleeve 83.

[0031] The rotating shaft 81 is provided with a handle at the position of the adjusting slot, the handle can drive the rotating shaft 81 to rotate, the rotating shaft 81 drives the screw 82 on both sides to rotate synchronously, and under the guiding action of the sliding block 84, the sleeve 83 and the sliding block 84 can slide in the shift sliding groove two.

[0032] The clamping part 9 comprises an insertion plate two 91 arranged on the receiving rod 62, the insertion plate two 91 is arranged on the receiving rod 62, the insertion plate two 91 is provided with an insertion groove two 92 matched with the insertion plate two 91, the insertion groove two 92 is provided with a reset spring 93, the reset spring 93 is provided with a clamping block 94, and the insertion plate two 91 is provided with a clamping groove 95 matched with the clamping block 94.

[0033] Reset springs 93 and clamping blocks 94 are arranged on both sides of the insertion plate two 91, and meanwhile, clamping grooves 95 matched with the clamping blocks 94 are also arranged on both sides of the insertion plate two 91, and the top of the clamping block 94 is chamfered to facilitate entering the insertion groove two 92 and separating from the clamping groove 95.

[0034] During installation, construction marks should be arranged on the bridge surface, and vehicles and the like should be prohibited to pass through, so as to avoid affecting the installation progress and installation accuracy, the staff first takes out a positioning seat 61, then the staff pulls out the insertion plate one 74 from the insertion groove one 73, the insertion plate one 74 cancels the locking of the pre-positioning rod 72, and under the elastic force of the positioning spring 71, the pre-positioning rod 72 is pushed out of the shift sliding groove one until it contacts the beam end face, and the other side is also operated synchronously, so as to fix the positioning seat 61 in the expansion joint between the adjacent beams.

[0035] After positioning, the handle can drive the rotating shaft 81 to rotate, the rotating shaft 81 drives the screw 82 on both sides to rotate synchronously, and under the guiding action of the sliding block 84, the sleeve 83 and the sliding block 84 can slide in the shift sliding groove two, so as to adjust the end of the receiving rod 62 to be in close contact with the beam end face, and after the adjustment is completed, the positioning seat 61 is taken down by the clamping part 9.

[0036] Example 2 Please refer to Figures 6-12 The present application provides a technical solution: A bridge expansion joint deformation monitoring device, the rotating positioning piece 10 includes a rotating shaft 101 rotatably arranged on the receiving rod 62, the rotating shaft 101 is provided with a mounting plate 102, the outer side of the rotating shaft 101 is sleeved with a torsional spring 103, and the two ends of the torsional spring 103 are connected with the mounting plate 102 and the receiving rod 62 respectively.

[0037] When the receiving rod 62 is moved out of the displacement chute two, the mounting plate 102 continuously contacts the two sides of the displacement chute two, and when the mounting plate 102 is separated from the displacement chute two, under the action of the torsional spring 103, the mounting plate 102 is quickly ejected to be parallel to the end face of the beam body, and then the mounting work can be carried out through the through hole on the mounting plate 102.

[0038] In order to ensure that the mounting plate 102 can be attached to the side wall of the expansion joint after rotation together with the receiving rod 62, a chamfer is made on the mounting plate 102 and the position close to the rotating shaft 101 of the receiving rod 62, so that the other side of the right angle is used to realize accurate angle control.

[0039] In addition, in order to improve the efficiency of installation and reduce the situation of workers carrying fasteners, a storage cavity is arranged at the upper position of the receiving rod 62, which is used to place the fasteners required for installation, and of course other required tools can also be placed, which is not limited.

[0040] Example 3 Please refer to Figures 5-11 The present application provides a technical solution: A bridge expansion joint deformation monitoring device, the receiving rod 62 is provided with a plug-in seat 21 on the opposite side, the connecting rod 5 is inserted into the adjacent two plug-in seats 21 respectively, the connecting structure 2 includes a buffer 3 arranged on the connecting rod 5, the infrared monitoring sensor 1 is provided with a holding structure 22 at the bottom, the holding structure 22 is provided with a vertical plate 23 on both sides, and the vertical plate 23 and the buffer 3 are provided with an expansion joint 4.

[0041] The holding structure 22 is a structure in the background art, specifically, the holding structure 22 includes a connecting ring one and a connecting ring two, the two connecting rods two are fixedly connected with the connecting ring one at the close end, the two rotating rods one are rotatably connected with the inner circle of the connecting ring one, the two rotating rods one are rotatably connected with the outer surface of the connecting ring two at the close end, the two rotating rods two are rotatably connected with the inner circle of the connecting ring two, the two rotating rods two are rotatably connected with the connecting body at the close end, the bottom of the infrared monitoring sensor 1 is fixedly connected with the top of the connecting body, and the connecting body is fixedly installed with a counterweight at the bottom, which will not be described here.

[0042] The adapter rod 5 is in the shape of the letter "I" as a whole, and the adapter rod 5 is connected to the adapter rod 5 on both sides in a corresponding shape, so as to ensure the stability of the connection between the adapter rod 5 and the adapter rod 5 and ensure sufficient support strength.

[0043] The buffer 3 comprises a fixed shaft 31 arranged on the adapter rod 5, a shaft sleeve 32 is arranged on the fixed shaft 31 in a sliding manner, a buffer spring 33 is arranged between the two shaft sleeves 32, and a deflection rod 34 is arranged on the shaft sleeve 32 in a rotating manner. The end of the deflection rod 34 is rotatably arranged with a connecting seat 35.

[0044] When the beam body expands due to heat, the two end beam bodies approach the emission position in the opposite direction, driving the two adapter rods 5 to move in the opposite direction, the fixed shaft 31 on the adapter rod 5 moves synchronously, driving the deflection rod 34 to deflect and compress the buffer spring 33, achieving buffering for the connecting seat 35 (infrared monitoring sensor 1). Because the infrared monitoring sensor 1 does not displace relative to the two beam bodies, the length of the infrared ray emitted by the infrared monitoring sensor 1 becomes shorter, that is, the expansion joint becomes narrower.

[0045] When the beam body shrinks due to cold, the two end beam bodies approach the emission position in the opposite direction, driving the two adapter rods 5 to move in the opposite direction, the fixed shaft 31 on the adapter rod 5 moves synchronously, driving the deflection rod 34 to deflect and stretch the buffer spring 33, achieving buffering for the connecting seat 35 (infrared monitoring sensor 1). Because the infrared monitoring sensor 1 does not displace relative to the two beam bodies, the length of the infrared ray emitted by the infrared monitoring sensor 1 becomes longer, that is, the expansion joint becomes wider.

[0046] The expansion member 4 comprises a synchronous plate 41 arranged between the two connecting seats 35, a vertical plate 23 and a synchronous plate 41 are arranged between the two connecting seats 35, and a synchronous plate 41 is arranged between the two connecting seats 35. The expansion rod 42 is arranged on the expansion rod 42, and the fastening bolt 43 is arranged on the expansion rod 42.

[0047] Because the size of the expansion joint has certain differences, the position of the adapter rod 62 is different when the infrared monitoring sensor 1 is installed, so it is necessary to adjust the distance between the synchronous plate 41 and the vertical plate 23 (infrared monitoring sensor 1) during installation, so as to ensure that the buffer spring 33 is in the best working state after installation.

[0048] During installation, construction marks should be set on the bridge surface, and vehicles and the like should be prohibited to pass through, so as to avoid affecting the installation progress and installation accuracy. The worker first takes out a positioning seat 61, then the worker pulls out the adapter plate one 74 from the adapter slot one 73, the adapter plate one 74 cancels the locking of the pre-positioning rod 72, and under the elastic force of the positioning spring 71, the pre-positioning rod 72 is pushed out from the displacement slot one until it contacts the end face of the beam body. The other side is also operated synchronously, so as to fix a positioning seat 61 in the expansion joint between the adjacent beam bodies.

[0049] After positioning, the rotating handle can drive the rotating shaft 81 to rotate, and the rotating shaft 81 drives the two screw rods 82 to rotate synchronously, and under the guidance of the sliding block 84, the sleeve 83 and the sliding block 84 can slide inside the displacement sliding groove two to adjust the end of the receiving rod 62 to be in contact with the end face of the beam body, and after the adjustment is completed, the positioning seat 61 is taken out by the clamping piece 9.

[0050] After the side fixing is completed, the second positioning seat 61 is taken out, and the two connecting rods 5 are inserted into the set of insertion seats 21, and the size of the connecting rod 5 is used to adjust the position of the positioning seat 61, so that the other end of the connecting rod 5 can be inserted into the insertion seat 21 on the positioning seat 61 that has been positioned, after the insertion is completed, the two side insertion plates one 74 are pulled out, the pre-positioning of the second positioning seat 61 is realized, and then the handle is rotated to adjust the receiving rod 62.

[0051] Embodiment 4 Please refer to Figure 5 , Figure 10 and Figure 11 , the present application provides a technical solution: A bridge expansion joint deformation monitoring device, the vertical plate 23 is composed of a vertical sliding frame 11 arranged at the end of the expansion rod 42 and a vertical sliding plate 12 arranged on the retaining structure 22, the vertical sliding plate 12 is provided with a wedge block 13, the synchronous plate 41 is provided with a pressing plate 14 matched with the wedge block 13, the top of the vertical sliding plate 12 extends to the outside of the vertical sliding frame 11, and the top of the vertical sliding plate 12 is provided with a flexible plate body 15 on both sides, and the end of the flexible plate body 15 is bent to form a downward flange.

[0052] The contact position of the pressing plate 14 and the wedge block 13 is provided with a roller, so as to reduce the friction between the pressing plate 14 and the wedge block 13.

[0053] The bending treatment of the flexible plate body 15 is to ensure that the vertical sliding plate 12 will not be separated from the vertical sliding frame 11 during normal monitoring.

[0054] When the beam body is excessively expanded by heat, the expansion joint becomes narrow, therefore, in order to protect the infrared monitoring sensor 1, a sinking technology of the infrared monitoring sensor 1 together with the retaining structure 22 is designed, in particular: When the beam body expands, the two end beam bodies move towards the launching position in the opposite direction, driving the two connecting rods 5 to move in the opposite direction. The expansion buffer spring 33 is difficult to maintain, at this time, the synchronous plate 41 moves in the opposite direction along with the bottom extrusion plate 14, and the extrusion plate 14 contacts and extrudes the wedge block 13 to drive it to move downward. At this time, the movement of the vertical sliding plate 12 can drive the flexible plate body 15 to deform, so that the vertical sliding plate 12 and the top flexible plate body 15 can move downward into the vertical sliding frame 11, realizing the sinking work of the infrared monitoring sensor 1 and the holding structure 22.

[0055] In addition, in order to avoid the infrared monitoring sensor 1 and the holding structure 22 from being directly separated from the expansion joint, notches are provided on both sides of the vertical sliding frame 11, and a line rope is designed at the bottom of the notch. The other end of the line rope is connected with the top of the vertical sliding plate 12, so as to realize the aerial suspension protection of the infrared monitoring sensor 1 and the holding structure 22.

[0056] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0057] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application.

Claims

1. A bridge expansion joint deformation monitoring device comprising an infrared monitoring sensor (1), characterized in that: The infrared monitoring sensor (1) is provided with a connecting structure (2) in front and back, the connecting structure (2) is provided with a connecting rod (5) on both sides, the infrared monitoring sensor (1) is provided with a mounting structure (6) on the left and right, and the two connecting rods (5) are arranged between the two mounting structures (6).

2. The bridge joint deformation monitoring device of claim 1, wherein: The mounting structure (6) includes a positioning seat (61) arranged on one side of the infrared monitoring sensor (1), the positioning seat (61) is provided with a pre-positioning piece (7) at both ends, the positioning seat (61) is provided with a synchronous adjusting piece (8) on the middle, the positioning seat (61) is provided with a bearing rod (62) on both sides of the synchronous adjusting piece (8), and the bearing rod (62) and the synchronous adjusting piece (8) are provided with a clamping piece (9) therebetween, and the bearing rod (62) is provided with a rotary positioning piece (10) at both ends.

3. The bridge joint deformation monitoring device of claim 2, wherein: The positioning seat (61) is provided with a displacement sliding groove one on both sides, the pre-positioning piece (7) includes a positioning spring (71) arranged in the displacement sliding groove one, the positioning spring (71) is provided with a pre-positioning rod (72) at the end, the positioning seat (61) and the pre-positioning rod (72) are provided with a plug-in groove one (73), and the positioning seat (61) is connected with a plug-in plate one (74) through a wire rope.

4. The bridge joint deformation monitoring device of claim 2, wherein: The positioning seat (61) is provided with a displacement sliding groove two on both sides, the synchronous adjusting piece (8) includes a rotating shaft (81) rotatably arranged in the adjusting groove, the rotating shaft (81) extends to the inside of the displacement sliding groove two at both ends, and the rotating shaft (81) is provided with different direction screw rods (82) at both ends, the screw rods (82) are threadedly connected with screw sleeves (83), and the displacement sliding groove two is slidably provided with sliding blocks (84) connected with the screw sleeves (83).

5. The bridge joint deformation monitoring device of claim 4, wherein: The clamping piece (9) includes a plug-in plate two (91) arranged on the bearing rod (62), the sliding block (84) is provided with a plug-in groove two (92) matched with the plug-in plate two (91), the plug-in groove two (92) is provided with a reset spring (93), the reset spring (93) is provided with a clamping block (94), and the plug-in plate two (91) is provided with a clamping groove (95) matched with the clamping block (94).

6. The bridge joint deformation monitoring device of claim 2, wherein: The rotary positioning piece (10) includes a rotating shaft (101) rotatably arranged on the bearing rod (62), the rotating shaft (101) is provided with a mounting plate (102), the rotating shaft (101) is sleeved with a torsional spring (103) outside, and the torsional spring (103) is connected with the mounting plate (102) and the bearing rod (62) at both ends.

7. The bridge joint deformation monitoring device of claim 6, wherein: The bearing rod (62) is provided with a plug-in seat (21) on the opposite side, the connecting rod (5) is inserted into the adjacent two plug-in seats (21) at both ends, the connecting structure (2) includes a buffer (3) arranged on the connecting rod (5), the infrared monitoring sensor (1) is provided with a retaining structure (22) at the bottom, the retaining structure (22) is provided with a vertical plate (23) on both sides, and the vertical plate (23) and the buffer (3) are provided with a telescopic piece (4).

8. The bridge joint deformation monitoring device of claim 7, wherein: The buffer piece (3) comprises a fixing shaft (31) arranged on the connecting rod (5), a shaft sleeve (32) is slidably arranged on the fixing shaft (31), a buffer spring (33) is arranged between the two shaft sleeves (32), and a deflection rod (34) is rotatably arranged on the shaft sleeve (32).

9. The bridge joint deformation monitoring device of claim 8, wherein: The telescopic piece (4) comprises a synchronous plate (41) arranged between the two connecting seats (35), and a telescopic rod (42) is arranged between the vertical plate (23) and the synchronous plate (41), and the telescopic rod (42) is provided with a fastening bolt (43).

10. The bridge joint deformation monitoring device of claim 9, wherein: The vertical plate (23) is composed of a vertical sliding frame (11) arranged at the end of the telescopic rod (42) and a vertical sliding plate (12) arranged on the retaining structure (22), the vertical sliding plate (12) is provided with a wedge block (13), the synchronous plate (41) is provided with a pressing plate (14) matched with the wedge block (13), the vertical sliding plate (12) extends to the outside of the vertical sliding frame (11) at the top, and flexible plate bodies (15) are arranged on both sides of the top of the vertical sliding plate (12), and the end of the flexible plate body (15) is bent to form a downward flange.

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