Steel bridge pavement layer shear stress monitor
The steel bridge pavement shear stress monitoring instrument, with its electromagnetic shielding outer casing and multi-interface design, solves the problems of electromagnetic interference and installation complexity, achieving efficient monitoring and convenient installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEILONGJIANG ROAD & BRIDGE SURVEY & DESIGN CO
- Filing Date
- 2025-03-26
- Publication Date
- 2026-05-08
AI Technical Summary
Existing home circuit monitoring devices are susceptible to electromagnetic interference, leading to data misinterpretation. They are unable to monitor DC power generation and are complex to install, affecting convenience.
The signal module is enclosed in an electromagnetic shielded outer casing, and features a multi-interface design and screw clamp installation method to reduce the impact of electromagnetic interference, support DC power generation monitoring, and simplify the installation process.
It effectively reduces external signal interference, enhances the dustproof effect of the interface, and improves the versatility and ease of installation of the monitoring device.
Smart Images

Figure CN224216478U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of monitoring device technology, specifically a shear stress monitoring instrument for steel bridge pavement. Background Technology
[0002] Smart meters are instruments used to monitor and measure electricity consumption in homes. However, existing home circuits may be vulnerable to exploiting vulnerabilities to modify the meter's monitoring data for illegal purposes such as electricity theft. To prevent this, technicians have added a field monitoring device between the smart meter and the home circuit to prevent illegal electricity theft.
[0003] Several problems exist in the use of existing monitoring devices: 1. When existing monitoring instruments operate near frequency converters, electromagnetic interference can cause monitoring chips to malfunction, increasing the data jump rate and leading to misjudgments in power calculations. Power outages are necessary under high power conditions, resulting in economic losses caused by inaccurate monitoring due to external electromagnetic interference. 2. Furthermore, existing monitoring instruments only support AC side monitoring. Photovoltaic DC power generation relies on inverter conversion efficiency for estimation. Distributed photovoltaic users do not directly monitor DC power generation, and the limited number of connection ports makes them unsuitable for various instrument connection types, reducing the versatility of the monitoring devices. 3. During installation, the monitoring devices are mounted on walls at specific locations using bolts through the screw holes in the mounting plate on the rear of the device housing. This requires pre-drilling the wall before bolting, increasing installation complexity and affecting the ease of installation. Utility Model Content
[0004] The purpose of this invention is to provide a shear stress monitoring instrument for steel bridge pavement layers to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including an anti-electromagnetic outer box, a box groove disposed inside the anti-electromagnetic outer box, a sealing component disposed on the front side of the box groove, a sealing component disposed inside the sealing component, and a mounting component disposed on the rear side wall of the anti-electromagnetic outer box.
[0006] The enclosing component includes a front groove at the front end of the box groove, a cover plate is movably disposed inside the front groove, sliding grooves are provided on the upper and lower side walls of the front groove, and sliding plates that cooperate with the sliding grooves are provided on the upper and lower side walls of the cover plate.
[0007] The sealing assembly includes a through groove inside the cover plate. The front sidewall of the cover plate on both sides of the through groove is provided with an outer plate. The opposite sidewall of the outer plate is provided with a side groove. A side plate is movably arranged inside the side groove. A second telescopic rod is provided at the upper end of the side plate. A second spring is fitted on the outer wall of the second telescopic rod.
[0008] The installation assembly includes a central groove located inside the rear center of the anti-electromagnetic outer box. A first bevel gear is provided on the upper inner wall of the central groove, and a knob is connected to the upper end of the first bevel gear. Second bevel gears that cooperate with the first bevel gear are provided on the inner walls of both sides of the central groove.
[0009] As a further embodiment of this utility model: a slot is provided on the front side of the slide plate, a groove is provided on the front side of the slide groove, an insert plate that cooperates with the slot is provided inside the groove, side grooves are provided on the upper and lower sides of the groove, side plates that fit into the insert plate are provided on the upper and lower sides of the insert plate, and a pull plate is connected between the upper and lower insert plates.
[0010] As a further improvement of this utility model: a first telescopic rod is provided on the front side wall of the side plate, and a first spring is fitted on the outer wall of the first telescopic rod.
[0011] As a further embodiment of this utility model: a connecting plate is provided between the left and right side plates, and a telescopic groove is provided inside the center of the connecting plate, and a telescopic cover is movably provided inside the telescopic groove.
[0012] As a further embodiment of this utility model: the telescopic groove is provided with slots on both sides, the telescopic cover is provided with insert plates that cooperate with the slots on both sides, the front surface of the insert plate is provided with a third telescopic rod, and the outer wall of the third telescopic rod is fitted with a third spring.
[0013] As a further embodiment of this utility model: rear grooves are provided on the outer sides of both ends of the central groove, and a screw is provided inside the rear groove, with a clamping plate fitted on the outer wall of the screw.
[0014] As a further improvement of this utility model: limit grooves are provided on the upper and lower sides of the rear groove, and limit plates that cooperate with the limit grooves are provided on the upper and lower sides of the clamping plate.
[0015] As a further improvement of this utility model: a monitoring instrument is detachably inserted inside the box slot, and multiple sets of wiring ports are opened on the front surface of the monitoring instrument.
[0016] As a further embodiment of this invention: the rotation input end of the screw is connected to the rotation input end of the second bevel gear.
[0017] As a further improvement of this utility model, the number of telescopic covers is matched with the number of wiring ports.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] 1. In order to reduce the signal module of the instrument monitoring device from external electromagnetic interference, this utility model requires placing it inside an anti-electromagnetic outer box. The monitor is inserted into the slot of the box, and the pull plate is pulled forward to drive the upper and lower end plates to slide towards the front end of the slot, causing the side plate to slide in the side slot. The first telescopic rod and the first spring are squeezed to retract, and the cover plate is pushed to the right to move the slide plate to the right in the slide groove, so that the slot is aligned with the plate. The pull force of the pull plate is released, and the first telescopic rod and the first spring push the side plate backward, causing the plate to insert into the aligned slot. The cover plate is then fixed to the front of the anti-electromagnetic outer box, sealing and protecting the monitor to avoid the influence of external signal interference on the instrument monitoring.
[0020] 2. When monitoring instruments with different connector models is required, this utility model allows for the following: The telescopic cover is pulled forward as needed, moving it within the telescopic groove. This moves the insert plate within the groove, compressing the third telescopic rod and the third spring to retract. Simultaneously, the connecting plate is pulled upward, causing the side plates on both sides to move upward within the side groove, compressing the second telescopic rod and the second spring to retract, exposing the corresponding connector. The instrument connector to be monitored is then inserted. After monitoring, the instrument connector is pulled out of the connector. The tension on the connecting plate is released, and the second telescopic rod and the second spring push the side plates downward, causing the connecting plate to move downward, aligning the telescopic cover with the connector. Then, the tension on the telescopic cover is released, and the third telescopic rod and the third spring push the insert plate backward, causing the telescopic cover to insert backward into the aligned connector, blocking the connector and preventing dust from entering when monitoring is not needed. This increases the dustproof effect of the monitoring device on the interface.
[0021] 3. When the monitoring device needs to be installed on the outside of the instrument or equipment to be monitored, according to the size of the instrument or equipment, the knob is turned to drive the first bevel gear connected to it to rotate, which in turn drives the second bevel gears on both sides to rotate, which in turn drives the screw connected to them to rotate, and the clamping plates move synchronously towards or away from each other in the rear groove. With the limiting plate embedded in the limiting groove, the clamping plates on both sides are firmly and stably clamped and installed on the outside of the instrument or equipment to be monitored, replacing the previous bolt drilling installation and improving the ease of use of the monitoring device. Attached Figure Description
[0022] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model;
[0023] Figure 2 This is a schematic diagram of the closed component according to an embodiment of the present utility model;
[0024] Figure 3 This is a schematic diagram of the sealing assembly according to an embodiment of the present utility model;
[0025] Figure 4 This is an overall rear view schematic diagram of an embodiment of the present utility model;
[0026] Figure 5 This is a schematic diagram of the installation components according to an embodiment of the present utility model.
[0027] In the diagram: 1. Electromagnetic shielding outer box; 2. Box slot; 3. Monitor; 4. Wiring port; 501. Front slot; 502. Cover plate; 503. Slide groove; 504. Slide plate; 505. Slot; 506. Groove; 507. Insert plate; 508. Side slot; 509. Side plate; 510. First telescopic rod; 511. First spring; 512. Pull plate; 601. Through groove; 602. Outer plate; 603. Side slot; 604. Side plate; 60 5. Second telescopic rod; 606. Second spring; 607. Connecting plate; 608. Telescopic groove; 609. Telescopic cover; 610. Embedded groove; 611. Embedded plate; 612. Third telescopic rod; 613. Third spring; 701. Center groove; 702. First bevel gear; 703. Knob; 704. Second bevel gear; 705. Rear groove; 706. Screw; 707. Clamping plate; 708. Limiting groove; 709. Limiting plate. Detailed Implementation
[0028] To facilitate the solution of the problem, this utility model provides a shear stress monitoring instrument for steel bridge pavement. The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0029] Example 1
[0030] like Figures 1 to 5 As shown, this embodiment provides a steel bridge pavement layer shear stress monitoring instrument, including an anti-electromagnetic outer box 1, a box groove 2 disposed inside the anti-electromagnetic outer box 1, a sealing component disposed on the front side of the box groove 2, a sealing component disposed inside the sealing component, and a mounting component disposed on the rear side wall of the anti-electromagnetic outer box 1.
[0031] The enclosed assembly includes a front groove 501 opened at the front end of the box groove 2, a cover plate 502 is movably disposed inside the front groove 501, and sliding grooves 503 are opened on the upper and lower side walls of the front groove 501, and sliding plates 504 that cooperate with the sliding grooves 503 are provided on the upper and lower side walls of the cover plate 502.
[0032] The sealing assembly includes a through groove 601 formed inside the cover plate 502. The front sidewalls of the cover plate 502 on both sides of the through groove 601 are provided with outer plates 602. The opposite sidewalls of the outer plates 602 are provided with side grooves 603. A side plate 604 is movably arranged inside the side groove 603. A second telescopic rod 605 is provided at the upper end of the side plate 604. A second spring 606 is fitted on the outer wall of the second telescopic rod 605.
[0033] The installation assembly includes a central groove 701 located inside the center of the rear end of the electromagnetic shielding outer box 1. A first bevel gear 702 is provided on the upper inner wall of the central groove 701. A knob 703 is connected to the upper end of the first bevel gear 702. Second bevel gears 704 that cooperate with the first bevel gear 702 are provided on the inner walls of both sides of the central groove 701.
[0034] Example 2
[0035] As a further embodiment of this utility model, the sliding plate 504 has a slot 505 on its front side, the sliding groove 503 has a slot 506 on its front side, the slot 506 has an insert plate 507 that cooperates with the slot 505, the slot 506 has side grooves 508 on its upper and lower sides, the insert plate 507 has side plates 509 that fit into the insert plate 507 on its upper and lower sides, and a pull plate 512 is connected between the upper and lower insert plates 507. When the pull plate 512 is released, the first telescopic rod 510 and the first spring 511 push the side plate 509 backward, causing the insert plate 507 to be inserted into the aligned slot 505, thereby fixing the cover plate 502 to the front side of the anti-electromagnetic outer box 1.
[0036] Furthermore, a first telescopic rod 510 is provided on the front side wall of the side plate 509. A first spring 511 is fitted on the outer wall of the first telescopic rod 510. The first telescopic rod 510 and the first spring 511 push the side plate 509 backward, causing the insert plate 507 to be inserted into the aligned slot 505. This fixes the cover plate 502 to the front side of the electromagnetic shielding box 1, thus sealing and protecting the monitor 3 and preventing external signal interference from affecting the instrument's monitoring.
[0037] Furthermore, a connecting plate 607 is connected between the left and right side plates 604. A telescopic groove 608 is provided inside the center of the connecting plate 607. A telescopic cover 609 is movably installed inside the telescopic groove 608. The telescopic cover 609 is inserted backward into the aligned wiring port 4 to cover the wiring port 4 and prevent dust from entering the wiring port 4 when monitoring is not required.
[0038] Furthermore, the telescopic groove 608 has recesses 610 on both sides, and the telescopic cover 609 has inserts 611 on both sides that cooperate with the recesses 610. The front surface of the insert 611 is provided with a third telescopic rod 612, and a third spring 613 is fitted on the outer wall of the third telescopic rod 612. The third telescopic rod 612 and the third spring 613 push the insert 611 backward, causing the telescopic cover 609 to be inserted backward into the aligned wiring port 4, thus blocking the wiring port 4.
[0039] As a further embodiment of this utility model, the central groove 701 has rear grooves 705 on both sides, and a screw 706 is provided inside the rear groove 705. The outer wall of the screw 706 is fitted with a clamping plate 707, so that the clamping plates 707 on both sides are firmly and stably clamped and installed on the outside of the instrument or equipment to be monitored.
[0040] Furthermore, the rear groove 705 has limiting grooves 708 on both the upper and lower sides, and the clamping plate 707 has limiting plates 709 on both the upper and lower sides that cooperate with the limiting grooves 708. With the limiting plates 709 embedded in the limiting grooves 708, the clamping plates 707 on both sides are firmly and stably clamped and installed on the outside of the instrument or equipment to be monitored, replacing the previous bolt drilling installation.
[0041] Furthermore, a monitor 3 is detachably installed inside the slot 2. The front surface of the monitor 3 has multiple sets of wiring ports 4. After the monitoring is completed, the instrument end connector is pulled out from the wiring port 4, and the telescopic cover 609 is inserted backward into the aligned wiring port 4 to cover the wiring port 4, thus preventing dust from entering the wiring when monitoring is not required.
[0042] As a further embodiment of this utility model, the rotation input end of the screw 706 is connected to the rotation input end of the second bevel gear 704. When the second bevel gear 704 rotates, it drives the screw 706 connected to it to rotate, and the meshing drives the clamping plate 707 to move synchronously towards or away from each other in the rear groove 705.
[0043] Furthermore, the number of telescopic covers 609 is matched with the number of wiring ports 4, which facilitates effective dust protection for monitoring wiring ports 4 that are not in use.
[0044] Working principle: To reduce external electromagnetic interference to the signal module of the instrument monitoring device, it needs to be placed inside the electromagnetic shielding outer box 1. The monitor 3 is inserted into the box slot 2. Pulling the pull plate 512 forward causes the upper and lower end plates 507 to slide towards the front end of the slot 506, causing the side plate 509 to slide in the side slot 508. This compresses the first telescopic rod 510 and the first spring 511, causing them to retract. Pushing the cover plate 502 to the right causes the slide plate 504 to move to the right in the slide groove 503, aligning the slot 505 with the plate 507. Releasing the pull force on the pull plate 512 causes the first telescopic rod 510 and the first spring 511 to push the side plate 509 backward. 9. Inserting the insert plate 507 into the aligned slot 505 will fix the cover plate 502 to the front of the electromagnetic shielding outer box 1, thus sealing and protecting the monitor 3 and preventing external signal interference from affecting the instrument's monitoring. When monitoring instruments with different connector models is required, pull the telescopic cover 609 forward as needed to move it forward in the telescopic groove 608, causing the insert plate 611 to move in the groove 610, compressing the third telescopic rod 612 and the third spring 613 to retract. At the same time, pulling the connecting plate 607 upward will move the side plates 604 on both sides upward in the side groove 603, compressing the second telescopic rod 605 and the second spring 606 to retract. This exposes the corresponding connector 4, allowing the instrument connector to be monitored to be inserted. After monitoring, the instrument connector is pulled out of connector 4, and the tension on connecting plate 607 is released. The second telescopic rod 605 and the second spring 606 push the side plate 604 downward, causing connecting plate 607 to move downward, aligning telescopic cover 609 with connector 4. Then, the tension on telescopic cover 609 is released, and the third telescopic rod 612 and the third spring 613 push the insert plate 611 backward, causing telescopic cover 609 to be inserted backward into the aligned connector 4, covering connector 4 and preventing dust from entering connector 4 when monitoring is not needed, thus enhancing the monitoring device. Regarding the dustproof effect of the interface, when the monitoring device needs to be installed on the outside of the instrument to be monitored, according to the size of the instrument, turning the knob 703 drives the first bevel gear 702 connected to it to rotate, which in turn drives the second bevel gears 704 on both sides to rotate, which in turn drives the screw 706 connected to it to rotate, which in turn drives the clamping plates 707 to move synchronously towards or away from each other in the rear groove 705. Under the limitation of the limiting plate 709 embedded in the limiting groove 708, the clamping plates 707 on both sides are firmly and stably clamped and installed on the outside of the instrument to be monitored, replacing the previous bolt drilling installation and improving the ease of use of the monitoring device.
[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A shear stress monitoring instrument for steel bridge pavement, characterized in that: It includes an electromagnetic shielding outer box (1), a box groove (2) disposed inside the electromagnetic shielding outer box (1), a sealing component disposed on the front side of the box groove (2), a sealing component disposed inside the sealing component, and a mounting component disposed on the rear side wall of the electromagnetic shielding outer box (1). The enclosed component includes a front groove (501) opened at the front end of the box groove (2), a cover plate (502) is movably disposed inside the front groove (501), and sliding grooves (503) are opened on the upper and lower side walls of the front groove (501). Slide plates (504) that cooperate with the sliding grooves (503) are provided on the upper and lower side walls of the cover plate (502). The sealing assembly includes a through groove (601) opened inside the cover plate (502). The front sidewall of the cover plate (502) on both sides of the through groove (601) is provided with an outer plate (602). The opposite sidewall of the outer plate (602) is provided with a side groove (603). A side plate (604) is movably arranged inside the side groove (603). A second telescopic rod (605) is provided at the upper end of the side plate (604). A second spring (606) is fitted on the outer wall of the second telescopic rod (605). The installation assembly includes a central groove (701) located inside the center of the rear end of the electromagnetic shielding outer box (1). A first bevel gear (702) is provided on the upper inner wall of the central groove (701). A knob (703) is connected to the upper end of the first bevel gear (702). Second bevel gears (704) that cooperate with the first bevel gear (702) are provided on the inner walls of both sides of the central groove (701).
2. The steel bridge pavement layer shear stress monitoring instrument according to claim 1, characterized in that: The sliding plate (504) has a slot (505) on its front side, and the slide groove (503) has a slot (506) on its front side. The slot (506) has an insert plate (507) that cooperates with the slot (505) inside. The slot (506) has side grooves (508) on its upper and lower sides. The insert plate (507) has side plates (509) that fit into the insert plate (507) on its upper and lower sides. The upper and lower insert plates (507) are connected by a pull plate (512).
3. The steel bridge pavement layer shear stress monitoring instrument according to claim 2, characterized in that: The front side wall of the side plate (509) is provided with a first telescopic rod (510), and a first spring (511) is fitted on the outer wall of the first telescopic rod (510).
4. The steel bridge pavement layer shear stress monitoring instrument according to claim 1, characterized in that: A connecting plate (607) is connected between the left and right side plates (604). A telescopic groove (608) is provided inside the center of the connecting plate (607), and a telescopic cover (609) is movably provided inside the telescopic groove (608).
5. The steel bridge pavement layer shear stress monitoring instrument according to claim 4, characterized in that: The telescopic groove (608) has grooves (610) on both sides, and the telescopic cover (609) has plates (611) on both sides that cooperate with the grooves (610). The front surface of the plate (611) is provided with a third telescopic rod (612), and the outer wall of the third telescopic rod (612) is fitted with a third spring (613).
6. The steel bridge pavement layer shear stress monitoring instrument according to claim 1, characterized in that: The central groove (701) has rear grooves (705) on both sides. A screw (706) is installed inside the rear groove (705). A clamping plate (707) is fitted on the outer wall of the screw (706).
7. The steel bridge pavement layer shear stress monitoring instrument according to claim 6, characterized in that: The rear groove (705) has limit grooves (708) on both the upper and lower sides, and the clamping plate (707) has limit plates (709) on both the upper and lower sides that cooperate with the limit grooves (708).
8. The steel bridge pavement layer shear stress monitoring instrument according to claim 5, characterized in that: The monitoring instrument (3) is detachably inserted inside the box slot (2), and the front surface of the monitoring instrument (3) has multiple sets of wiring ports (4).
9. The steel bridge pavement layer shear stress monitoring instrument according to claim 6, characterized in that: The rotation input end of the screw (706) is connected to the rotation input end of the second bevel gear (704).
10. The steel bridge pavement layer shear stress monitoring instrument according to claim 8, characterized in that: The number of telescopic covers (609) matches the number of wiring ports (4).