CN115791517B - Bridge anti-seismic performance detection system - Google Patents
Bridge anti-seismic performance detection system Download PDFInfo
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- CN115791517B CN115791517B CN202310080580.9A CN202310080580A CN115791517B CN 115791517 B CN115791517 B CN 115791517B CN 202310080580 A CN202310080580 A CN 202310080580A CN 115791517 B CN115791517 B CN 115791517B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The invention discloses a bridge anti-seismic performance detection system, which belongs to the technical field of anti-seismic performance detection equipment and comprises a foundation column, a rod-shaped piece and a limiting assembly, wherein the foundation column is vertically installed, the foundation column is of an H-shaped steel structure, a through groove penetrating through a transverse plate is formed in the lower side of the foundation column, a second strip-shaped groove penetrates through the middle of the side surface of the foundation column, the rod-shaped piece comprises a first support arm and a second support arm, the second support arm is fixed on the back surface of the first support arm, a first pin rod is installed in the middle of two opposite side surfaces of the first support arm, the end part of the first pin rod, extending out of the second strip-shaped groove, is installed on a hydraulic telescopic rod installed on the outer side surface of the foundation column, a detector is installed at the end part of the first support arm, and a limiting rod is installed at one end of the second support arm. According to the invention, the foundation column is conveyed to the area to be detected through the connecting arm of the detection vehicle, the hydraulic telescopic rod extends to work and pushes the first pin rod to slide downwards along the second strip-shaped groove, so that the first support arm and the second support arm slide downwards integrally, and the monitoring range is favorably expanded.
Description
Technical Field
The invention relates to the field of anti-seismic performance detection equipment, in particular to a bridge anti-seismic performance detection system.
Background
The highway bridge engineering comprises a bridge main body engineering and auxiliary engineering facilities in a bridge position whole, wherein the auxiliary engineering facilities comprise structures for regulating and controlling water flow, such as revetments and diversion dikes for keeping a river channel at the bridge position stable, an approach bridge with a bridge head connected with a highway, railings for preventing wheels from colliding on a bridge floor, sidewalk railings for ensuring pedestrian safety, marks on the bridge, under-bridge navigation marks, bridge floor lighting equipment and the like.
When the existing bridge is used for detecting the seismic capacity, a worker can detect the reinforcing steel bars inside the bridge and see the distribution, the trend and the quantity of the reinforcing steel bars so as to further judge the seismic capacity of the bridge, and when the worker detects the reinforcing steel bar by using the reinforcing steel bar detecting instrument, the worker needs to hold the reinforcing steel bar detecting instrument to roll back and forth at the bottom of the bridge to detect the seismic capacity, and when the workload is large.
Disclosure of Invention
In order to solve the technical problem, the invention provides a bridge anti-seismic performance detection system which comprises a foundation column, a rod-shaped part and a limiting assembly, wherein the foundation column is vertically installed, the foundation column is of an H-shaped steel structure, a through groove penetrating through a transverse plate is formed in the lower side of the foundation column, a second strip-shaped groove penetrates through the middle of the side face of the foundation column, the rod-shaped part comprises a first support arm and a second support arm, the back face of the first support arm is fixedly provided with the second support arm, a first pin rod is installed in the middle of the two opposite side faces of the first support arm, the first support arm is located in a groove body of the foundation column, the first pin rod is installed in the second strip-shaped groove in a matching mode, the end part, extending out of the second strip-shaped groove, of the first pin rod is installed on a hydraulic telescopic rod installed on the outer side face of the foundation column, a detector is installed at the end part of the first support arm, a limiting rod is installed at one end of the second support arm, the limiting assembly comprises a guide plate, the guide plate is fixed on one side of the foundation column, the outer side of the guide plate is an inclined plane, and when the first support arm and the second support arm move downwards;
the foundation pillar is conveyed to an area needing to be detected through the connecting arm of the detection vehicle, the hydraulic telescopic rod extends in work and pushes the first pin rod to slide downwards along the second strip-shaped groove, so that the first support arm and the second support arm integrally slide downwards, the detection end is expanded downwards, and the monitoring range is favorably expanded;
first pin rod slides to the time of the minimum along the second bar groove, shaft-like piece and pillar mutually perpendicular, the tip that the detector was installed to first support arm simultaneously extends to the bottom of bridge, the motor work of installation, it rotates to drive the threaded rod, thereby realize that the vertical seat of pivoted threaded rod drive slides along first spout, it slides to the opposite side from a side of bridge to realize the detector, the detector is accomplished and is detected the density of bridge reinforcing bar, be convenient for calculate the shock resistance of bridge through the reinforcing bar density of bridge.
Furthermore, a convex column extends from the upper end of the outer side face of the base column, a hydraulic telescopic rod is installed on the convex column, and the hydraulic telescopic rod extends to push the first pin rod to slide along the second strip-shaped groove.
Further, first bar groove has been seted up to the lateral surface upside of foundation column, offers the edge body that corresponds with first bar groove on the side of lateral surface, install drive assembly in the foundation column, drive assembly carries on spacingly through first bar groove and edge body, drive assembly and shaft-like spare are located the diaphragm both sides of foundation column respectively.
Further, the drive assembly comprises a rack, a shaft body and a mounting seat, the rack is fixedly mounted on a transverse plate of the foundation column, the shaft body penetrates through the first strip-shaped groove, a gear matched with the rack is mounted in the middle of the shaft body, the mounting seat is clamped on the outer side of the foundation column, a groove formed in the mounting seat is matched with the edge body, the extending end of the mounting seat is mounted on the end portion, extending out of the first strip-shaped groove, of the shaft body, a driving machine is fixedly mounted on the mounting seat and connected with the gear in a transmission mode, the extending end of the shaft body is mounted on a connecting arm of the detection vehicle, gear rotation is achieved through operation of the driving machine, the gear moves along the rack, the extending end of the shaft body is mounted on the connecting arm of the detection vehicle and moves downwards, and downward detection distance is increased conveniently.
Further, first spout has been seted up to one side of first support arm, sealed piece is installed to the tip of first spout, install the threaded rod in the first spout, a tip of threaded rod is installed on sealed piece, install the motor of being connected with the threaded rod transmission on the sealed piece, slidable mounting has upright seat on the first spout, the screw hole that the seat was equipped with cooperatees with the threaded rod, the tip rotation of founding the seat installs the detector.
Furthermore, the detector is provided with a disc-shaped connecting seat, a connecting shaft penetrating through the middle of the disc-shaped connecting seat is installed on the vertical seat, and a balancing weight is installed on the other side, opposite to the detector, of the disc-shaped connecting seat.
Furthermore, a second sliding groove is formed in one side of the second support arm, the port of the second sliding groove is sealed through an end cover, a guide rod is installed in the second sliding groove, one end of the guide rod is installed on the end cover, an auxiliary supporting portion is installed in the second sliding groove in a sliding mode, the connecting end of the auxiliary supporting portion is connected to the guide rod in a sleeved mode, and a spring for pushing the auxiliary supporting portion to move towards the outside is connected to the guide rod in a sleeved mode.
Furthermore, a convex block is arranged at the bottom end of the base column, a round hole is formed in the convex block, the auxiliary supporting part comprises a sliding block, a connecting rod and a second pin rod, the sliding block is installed in a second sliding groove, meanwhile, a guide rod penetrates through the sliding block, the connecting rod is rotatably installed on the sliding block, the second pin rod is installed at the other end of the connecting rod, and the second pin rod is installed on the round hole;
first support arm and second support arm downstream's in-process, the gag lever post slides down along the inclined plane of baffle, thereby realize that the tip of second support arm moves to the outside along the baffle, the sliding block slides to the middle part of second support arm along the second spout simultaneously, thereby realize that the connecting rod promotes another tip of second support arm perk that makes progress, thereby realize that the first support arm and the second support arm of installation tend to the level, realize first support arm and second support arm and pillar mutually perpendicular, be convenient for realize that the detector scans the bottom of wall.
Further, when the first pin rod slides to the lowest position along the second strip-shaped groove, the rod-shaped piece is perpendicular to the base column.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the gear is rotated by the operation of the driving machine, the rotated gear moves along the rack, the downward movement of the extending end of the shaft body along the foundation column arranged on the connecting arm of the detection vehicle is realized, and the downward detection distance is conveniently increased.
2. According to the invention, the foundation column is conveyed to the area to be detected through the connecting arm of the detection vehicle, the hydraulic telescopic rod extends to work and pushes the first pin rod to slide downwards along the second strip-shaped groove, so that the first support arm and the second support arm integrally slide downwards, the downward expansion of the detection end is realized, and the expansion of the monitoring range is facilitated.
3. When the first pin rod slides to the lowest position along the second strip-shaped groove, the rod-shaped piece is perpendicular to the foundation column, the end part of the first support arm, provided with the detector, extends to the bottom of the bridge, the installed motor works to drive the threaded rod to rotate, so that the rotating threaded rod drives the vertical seat to slide along the first sliding groove, the detector slides from one side of the bridge to the other side, the detector detects the density of the bridge reinforcing steel bars, and the seismic capacity of the bridge can be calculated conveniently through the density of the bridge reinforcing steel bars.
4. In the process that the first support arm and the second support arm move downwards, the limiting rod slides downwards along the inclined plane of the guide plate, so that the end part of the second support arm moves outwards along the guide plate, and meanwhile, the sliding block slides towards the middle part of the second support arm along the second sliding groove, so that the connecting rod pushes the other end part of the second support arm to tilt upwards, the first support arm and the second support arm which are installed tend to be horizontal, the first support arm and the second support arm are perpendicular to the base column, and the bottom of a wall surface can be conveniently scanned by the detector.
Drawings
FIG. 1 is a schematic view of the left side of the overall structure of the present invention;
FIG. 2 is a right side view of the overall structure of the present invention;
FIG. 3 is a schematic view of the mating structure of the pillar and the pillar according to the present invention;
FIG. 4 is a schematic view of a pillar according to the present invention;
FIG. 5 is a schematic view of a first arm structure according to the present invention;
FIG. 6 is a schematic view of the pillar structure of the present invention;
FIG. 7 is a schematic view of a driving assembly according to the present invention;
fig. 8 is a schematic structural diagram of the working state of the present invention.
In the figure: 1. a base pillar; 101. a through groove; 102. a first bar-shaped groove; 103. a second strip groove; 104. a bump; 105. an edge body; 106. a convex column; 107. a circular hole; 2. a first support arm; 201. a first chute; 202. a first pin rod; 203. a threaded rod; 204. a sealing block; 205. a motor; 3. a vertical seat; 4. a second support arm; 401. a second chute; 402. an end cap; 403. a guide bar; 404. a spring; 5. an auxiliary support portion; 501. a slider; 502. a connecting rod; 503. a second pin; 6. a limiting rod; 7. a guide plate; 8. a drive assembly; 801. a rack; 802. a shaft body; 803. a mounting seat; 804. a gear; 805. a driver; 9. a detector; 10. a hydraulic telescopic rod.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Referring to fig. 1-8, the invention relates to a bridge anti-seismic performance detection system, which comprises a foundation column 1, a rod-shaped member and a limiting assembly, wherein the foundation column 1 is vertically installed, the foundation column 1 is of an H-shaped steel structure, a through groove 101 penetrating through a transverse plate is formed in the lower side of the foundation column 1, a second strip-shaped groove 103 penetrates through the middle part of the side surface of the foundation column 1, the rod-shaped member comprises a first support arm 2 and a second support arm 4, the second support arm 4 is fixed on the back surface of the first support arm 2, a first pin 202 is installed in the middle part of two opposite side surfaces of the first support arm 2, the first support arm 2 is located in the groove body of the foundation column 1, the first pin 202 is installed in the second strip-shaped groove 103 in a matching manner, the end part of the first pin 202, which extends out of the second strip-shaped groove 103, is installed on a hydraulic telescopic rod 10 installed on the outer side surface of the foundation column 1, a detector 9 is installed on the end part of the first support arm 2, a limiting rod 6 is installed at one end of the second support arm 4, the limiting assembly comprises a guide plate 7, the guide plate 7 is fixed on one side of the foundation column 1, the guide plate 7, the outer side of the guide plate 7, and the guide plate 4 and the guide plate moves downward along the inclined plane of the guide plate 7;
the foundation column 1 is conveyed to an area needing to be detected through the connecting arm of the detection vehicle, the hydraulic telescopic rod 10 is extended in work, and the first pin rod 202 is pushed to slide downwards along the second strip-shaped groove 103, so that the first support arm 2 and the second support arm 4 slide downwards integrally, the detection end is expanded downwards, and the detection range is expanded;
The upper end of the outer side surface of the base column 1 extends to form a convex column 106, a hydraulic telescopic rod 10 is installed on the convex column 106, and the hydraulic telescopic rod 10 extends to push the first pin 202 to slide along the second strip-shaped groove 103.
The upper side of the outer side surface of the foundation column 1 is provided with a first strip-shaped groove 102, the side edge of the outer side surface is provided with an edge body 105 corresponding to the first strip-shaped groove 102, the driving assembly 8 is installed in the foundation column 1, the driving assembly 8 is limited through the first strip-shaped groove 102 and the edge body 105, and the driving assembly 8 and the rod-shaped member are respectively positioned on two sides of the transverse plate of the foundation column 1.
The driving assembly 8 comprises a rack 801, a shaft body 802 and a mounting seat 803, the rack 801 is fixedly mounted on a transverse plate of the foundation column 1, the shaft body 802 penetrates through the first strip-shaped groove 102, a gear 804 matched with the rack 801 is mounted in the middle of the shaft body 802, the mounting seat 803 is clamped on the outer side of the foundation column 1, a groove formed in the mounting seat 803 is matched with the edge body 105, meanwhile, an extending end of the mounting seat 803 is mounted on the end portion, extending out of the first strip-shaped groove 102, of the shaft body 802, a driving machine 805 is fixedly mounted on the mounting seat 803, the driving machine 805 is in transmission connection with the gear 804, the extending end of the shaft body 802 is mounted on a connecting arm of the detection vehicle, the gear 804 rotates through the operation of the driving machine 805, the rotating gear 804 moves along the rack 801, the extending end of the shaft body 802 is mounted on the connecting arm of the detection vehicle to move downwards, and the downward detection distance is convenient to increase.
The detector 9 is provided with a disc-shaped connecting seat, the vertical seat 3 is provided with a connecting shaft penetrating through the middle part of the disc-shaped connecting seat, and the other side of the disc-shaped connecting seat, which is opposite to the detector 9, is provided with a balancing weight.
A second sliding groove 401 is formed in one side of the second support arm 4, a port of the second sliding groove 401 is sealed by an end cover 402, a guide rod 403 is installed in the second sliding groove 401, one end of the guide rod 403 is installed on the end cover 402, an auxiliary support portion 5 is installed in the second sliding groove 401 in a sliding mode, a connecting end of the auxiliary support portion 5 is connected to the guide rod 403 in a sleeved mode, and a spring 404 for pushing the auxiliary support portion 5 to move towards the outside is connected to the guide rod 403 in a sleeved mode.
The bottom end of the base column 1 is provided with a convex block 104, the convex block 104 is provided with a round hole 107, the auxiliary supporting part 5 comprises a sliding block 501, a connecting rod 502 and a second pin rod 503, the sliding block 501 is installed in the second sliding groove 401, meanwhile, the guide rod 403 penetrates through the sliding block 501, the connecting rod 502 is rotatably installed on the sliding block 501, the second pin rod 503 is installed at the other end of the connecting rod 502, and the second pin rod 503 is installed on the round hole 107;
in-process of first support arm 2 and second support arm 4 downstream, gag lever post 6 follows the inclined plane lapse of baffle 7, thereby realize that the tip of second support arm 4 moves to the outside along baffle 7, simultaneously sliding block 501 slides to the middle part of second support arm 4 along second spout 401, thereby realize that connecting rod 502 promotes the upwards perk of another tip of second support arm 4, thereby realize that the first support arm 2 and the second support arm 4 of installation tend to the level, realize first support arm 2 and second support arm 4 and base column 1 mutually perpendicular, be convenient for realize that detector 9 scans the bottom of wall.
When the first pin 202 slides along the second groove 103 to the lowest position, the rod-shaped member is perpendicular to the base pillar 1.
The working principle is as follows:
in the using process, the extending end of the shaft body 802 is arranged on the connecting arm of the detection vehicle to realize the installation of the detection device, and in addition, the connecting arm is in auxiliary connection with the detection device through a hydraulic supporting rod, so that the installed foundation column 1 is ensured to be in a vertical state;
in the working process, the driving machine 805 works to realize the rotation of the gear 804, the rotated gear 804 moves along the rack 801, the downward movement of the extending end of the shaft body 802 along the base column 1 arranged on the connecting arm of the detection vehicle is realized, and the downward detection distance is convenient to increase;
in the detection process, the foundation column 1 is conveyed to an area needing to be detected through the connecting arm of the detection vehicle, the hydraulic telescopic rod 10 is extended to work, and the first pin rod 202 is pushed to slide downwards along the second strip-shaped groove 103, so that the first support arm 2 and the second support arm 4 slide downwards integrally, the detection end is expanded downwards, and the detection range is expanded beneficially;
when the first pin rod 202 slides to the lowest position along the second strip-shaped groove 103, the rod-shaped piece is perpendicular to the foundation column 1, meanwhile, the end part of the first support arm 2, provided with the detector 9, extends to the bottom of the bridge, the mounted motor 205 works to drive the threaded rod 203 to rotate, so that the rotating threaded rod 203 drives the vertical seat 3 to slide along the first sliding groove 201, the detector 9 slides from one side of the bridge to the other side, the detector 9 finishes detecting the density of the reinforcing steel bars of the bridge, and the seismic capacity of the bridge can be calculated conveniently through the density of the reinforcing steel bars of the bridge;
in-process of first support arm 2 and second support arm 4 downstream, gag lever post 6 slides down along the inclined plane of baffle 7, thereby realize that the tip of second support arm 4 moves to the outside along baffle 7, sliding block 501 slides to the middle part of second support arm 4 along second spout 401 simultaneously, thereby realize that connecting rod 502 promotes the upwards perk of another tip of second support arm 4, thereby realize that the first support arm 2 and the second support arm 4 of installation tend to the level, realize first support arm 2 and second support arm 4 and base column 1 mutually perpendicular, be convenient for realize that detector 9 scans the bottom of wall.
It should be apparent that the described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by one of ordinary skill in this and related arts based on the embodiments of the present invention without creative efforts, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.
Claims (7)
1. Bridge anti-seismic performance detecting system, its characterized in that includes:
a foundation column (1), the foundation column (1) being vertically mounted;
the foundation column (1) is of an H-shaped steel structure, a through groove (101) penetrating through the transverse plate is formed in the lower side of the foundation column (1), and a second strip-shaped groove (103) penetrates through the middle of the side face of the foundation column (1);
the device comprises a rod-shaped part, wherein the rod-shaped part comprises a first support arm (2) and a second support arm (4), the second support arm (4) is fixed on the back surface of the first support arm (2), and first pin rods (202) are arranged in the middles of two opposite side surfaces of the first support arm (2);
the first support arm (2) is positioned in a groove body of the foundation column (1), meanwhile, a first pin rod (202) is installed in a second strip-shaped groove (103) in a matching mode, and the end part, extending out of the second strip-shaped groove (103), of the first pin rod (202) is installed on a hydraulic telescopic rod (10) installed on the outer side surface of the foundation column (1);
when the first pin rod (202) slides to the lowest position along the second strip-shaped groove (103), the rod-shaped piece is vertical to the base column (1);
a detector (9) is arranged at the end part of the first supporting arm (2);
a first sliding groove (201) is formed in one side of the first supporting arm (2), a sealing block (204) is mounted at the end of the first sliding groove (201), a threaded rod (203) is mounted in the first sliding groove (201), one end of the threaded rod (203) is mounted on the sealing block (204), a motor (205) in transmission connection with the threaded rod (203) is mounted on the sealing block (204), a vertical seat (3) is slidably mounted on the first sliding groove (201), a threaded hole formed in the vertical seat (3) is matched with the threaded rod (203), and a detector (9) is rotatably mounted at the end of the vertical seat (3);
one end of the second support arm (4) is provided with a limiting rod (6);
the limiting assembly comprises a guide plate (7), the guide plate (7) is fixed on one side of the foundation column (1), and the outer side edge of the guide plate (7) is an inclined plane;
when the first support arm (2) and the second support arm (4) move downwards, the limiting rod (6) moves along the inclined plane of the guide plate (7).
2. The bridge seismic performance detection system of claim 1, characterized in that: the outer side surface upper end of the base column (1) extends to form a convex column (106), a hydraulic telescopic rod (10) is installed on the convex column (106), and the hydraulic telescopic rod (10) extends to push the first pin rod (202) to slide along the second strip-shaped groove (103).
3. The bridge seismic performance detection system of claim 1, characterized in that: a first strip-shaped groove (102) is formed in the upper side of the outer side face of the foundation column (1), and an edge body (105) corresponding to the first strip-shaped groove (102) is formed in the side edge of the outer side face;
a driving component (8) is installed in the foundation column (1), and the driving component (8) is limited through a first strip-shaped groove (102) and an edge body (105);
the driving component (8) and the rod-shaped piece are respectively positioned on two sides of the transverse plate of the base column (1).
4. The bridge seismic performance detection system of claim 3, wherein: the driving assembly (8) comprises a rack (801), a shaft body (802) and a mounting seat (803), the rack (801) is fixedly mounted on a transverse plate of the foundation column (1), the shaft body (802) penetrates through the first linear groove (102), and a gear (804) matched with the rack (801) is mounted in the middle of the shaft body (802);
the mounting seat (803) is clamped on the outer side of the foundation column (1), a groove formed in the mounting seat (803) is matched with the edge body (105), and meanwhile the extending end of the mounting seat (803) is mounted on the end part, extending out of the first strip-shaped groove (102), of the shaft body (802);
a driving machine (805) is fixedly mounted on the mounting seat (803), and the driving machine (805) is in transmission connection with the gear (804);
the extending end of the shaft body (802) is installed on the connecting arm of the detection vehicle.
5. The bridge seismic performance detection system of claim 1, characterized in that: the detector (9) is provided with a disc-shaped connecting seat, and the vertical seat (3) is provided with a connecting shaft penetrating through the middle part of the disc-shaped connecting seat;
and a balancing weight is arranged on the other side of the disc-shaped connecting seat, which is opposite to the detector (9).
6. The bridge seismic performance detection system of claim 1, wherein: a second sliding groove (401) is formed in one side of the second support arm (4), the port of the second sliding groove (401) is closed through an end cover (402), a guide rod (403) is installed in the second sliding groove (401), and one end of the guide rod (403) is installed on the end cover (402);
an auxiliary supporting portion (5) is arranged in the second sliding groove (401) in a sliding mode, the connecting end of the auxiliary supporting portion (5) is connected to the guide rod (403) in a sleeved mode, and a spring (404) for pushing the auxiliary supporting portion (5) to move towards the outer side is connected to the guide rod (403) in a sleeved mode.
7. The bridge seismic performance detection system of claim 6, wherein: a bump (104) is arranged at the bottom end of the base column (1), and a round hole (107) is formed in the bump (104);
the auxiliary supporting part (5) comprises a sliding block (501), a connecting rod (502) and a second pin rod (503), the sliding block (501) is installed in the second sliding groove (401), and meanwhile, the guide rod (403) penetrates through the sliding block (501);
a connecting rod (502) is rotatably mounted on the sliding block (501), a second pin rod (503) is mounted at the other end of the connecting rod (502), and the second pin rod (503) is mounted on the round hole (107).
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| CN202310080580.9A CN115791517B (en) | 2023-02-08 | 2023-02-08 | Bridge anti-seismic performance detection system |
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| CN202310080580.9A CN115791517B (en) | 2023-02-08 | 2023-02-08 | Bridge anti-seismic performance detection system |
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| CN115598224A (en) * | 2022-09-07 | 2023-01-13 | 裴小娟（Cn） | Building engineering quality detection device with shock-absorbing function |
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| CN111007009A (en) * | 2019-12-23 | 2020-04-14 | 济南工程职业技术学院 | Be applied to cracked detection device of bridge |
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