Highway bridge modular expansion joint detection device

Abstract

The utility model discloses a highway bridge modular expansion joint detection device, which comprises a device main body, a reading mechanism and a measuring mechanism, and is characterized in that the device main body comprises a top plate, the two ends of the top plate are respectively and symmetrically provided with two side plates, the top plate is provided with a sliding groove along the longitudinal direction, and the top plate is provided with scales along the transverse direction; the reading mechanism comprises a sliding rod, a scale pointer disc and a locking assembly, the sliding rod penetrates through the sliding groove and is in sliding connection with the sliding groove, the top end of the sliding rod is fixedly connected with the scale pointer disc, and the bottom end of the sliding rod is fixedly connected with the measuring mechanism; when the sliding rod moves to a preset position, the sliding rod is locked and fixed to the bottom end of the top plate through a locking assembly. The measuring mechanism comprises a movable clamping plate and a fixed clamping plate, the movable clamping plate is fixedly connected with the bottom end of the sliding rod, and the fixed clamping plate is fixed to one side plate. The highway bridge expansion joint detection device is easy to operate, can realize rapid measurement of highway bridge expansion joints, and improves the detection efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of highway bridge detection, and in particular relates to a modular expansion joint detection device for highway bridges. Background Art

[0002] Currently, the existing Chinese patent publication number CN218822051U discloses an expansion joint measuring device, which relates to the field of surveying and mapping tools. Specifically, it includes a tripod, a measuring platform on the top of the tripod, a balancing bubble gauge on the measuring platform, a mounting hole in the middle of the measuring platform, a limit slot on the edge of the mounting hole, a measuring instrument mounted in the mounting hole, an operating panel on the top of the measuring instrument, a housing on the outside of the operating panel, a limit block on the housing, a lifting cylinder at the bottom of the housing, a fixed block mounted on the bottom of the lifting cylinder, a slide rail mounted on the fixed block, a rangefinder mounted on the slide rail, a measuring rod mounted on the rangefinder, and a measuring cylinder mounted on one end of the measuring rod. The device uses fully automated measurement instead of traditional manual measurement, greatly improving efficiency. Only the instrument needs to be set up. When measuring values, the surveyor is in a standing position and does not need to bend over, which greatly saves manpower. However, the device requires both hands to operate, resulting in the user's hands being occupied and requiring help from others to record data, resulting in low work efficiency. To address the above problems, a modular expansion joint detection device for highway bridges is provided. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a modular expansion joint detection device for highway bridges. The device is easy to operate, can achieve rapid measurement of expansion joints, and improves detection efficiency.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a modular expansion joint detection device for a highway bridge, comprising a device body, a reading mechanism, and a measuring mechanism, wherein the device body comprises a top plate, two side plates are symmetrically provided at both ends of the top plate, a sliding groove is provided along the longitudinal direction of the top plate, and a scale is provided along the transverse direction of the upper edge of the top plate;

[0005] The reading mechanism includes a sliding rod, a scale pointer disk, and a locking assembly. The sliding rod passes through the sliding slot and is slidably connected to the sliding slot. The top end of the sliding rod is fixedly connected to the scale pointer disk, and the bottom end of the sliding rod is fixedly connected to the measuring mechanism. When the sliding rod moves to a preset position, the sliding rod is locked and fixed to the bottom end of the top plate by the locking assembly.

[0006] The measuring mechanism includes a movable clamping plate and a fixed clamping plate, wherein the movable clamping plate is fixedly connected to the bottom end of the sliding rod, and the fixed clamping plate is fixed to a side plate.

[0007] Preferably, the measuring mechanism also includes a threaded rod, two idling bearing seats and a spring, one end of the threaded rod is connected to the other side plate through the idling bearing seat, the movable splint is provided with a through hole and the threaded rod is threadedly connected to the through hole, and the other end of the threaded rod passes through the through hole and is connected to the fixed splint through the idling bearing seat; the two ends of the spring respectively press against the movable splint and the fixed splint.

[0008] Preferably, the measuring mechanism also includes a guide slide rod and a spring, one end of the guide slide rod is fixedly connected to the other side plate, the movable splint is provided with a through hole matching the guide slide rod, and the other end of the guide slide rod passes through the through hole and is fixedly connected to the fixed splint.

[0009] Preferably, the locking assembly includes a nut, and the lower end of the sliding rod is provided with a thread matching the nut.

[0010] Preferably, the sliding rod also includes a rotating wheel, a circular groove is provided at the middle end of the sliding rod, the rotating wheel is sleeved on the circular groove of the sliding rod, and a rotating ball is provided on the inner circumferential surface of the rotating wheel; the surrounding surfaces of the sliding groove have recesses, and the recesses match the rotating wheel.

[0011] Preferably, the lower ends of the two side panels are respectively connected to positioning plates, and the side panels and the corresponding positioning plates are L-shaped.

[0012] Preferably, an anti-slip pad is provided at the bottom end of the positioning plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) The utility model provides a modular expansion joint detection device for highway bridges, which drives the movable splint to approach the fixed splint by pushing the sliding rod along the sliding groove. After reaching the appropriate distance, the sliding rod is fixed to the top plate by the locking clamping assembly. At this time, the side plate is placed on the top surface of the measurement target, and the movable splint and the fixed splint are placed in the expansion joint to be measured, wherein one end of the fixed splint is tightly attached to one end of the expansion joint. Then the locking assembly is loosened, and the sliding rod is pushed along the sliding groove to drive the movable splint to move away from the fixed splint until the movable splint is tightly attached to the other end of the expansion joint to be measured. The sliding rod is fixed to the top plate again by the locking clamping assembly, and the spacing between the movable splint and the fixed splint is fixed. At this time, the spacing value of the expansion joint to be measured can be read by observing the correspondence between the scale pointer and the scale. This device has a simple structure and is easy to operate. It can achieve fast and accurate measurement of expansion joints of highways or bridges, thereby improving test efficiency. Compared with the existing technology, this overcomes the problem that the user's hands are occupied and needs someone to help record data, resulting in low work efficiency.

[0015] (2) The measuring mechanism of the present invention is provided with a threaded rod, two idle bearing seats and a spring. When in use, under the action of the elastic force, the movable clamp is pushed along the thread lines of the threaded rod in the direction away from the fixed clamp. The threaded rod rotates in a spiral until the movable clamp is in contact with one end of the expansion joint. At this time, under the action of the elastic force, the movable clamp and the expansion joint are in a tight state. At the same time, the sliding rod is fixed by the locking assembly. At this time, the top of the movable clamp and the movable clamp itself are both fixed. This setting can improve the stability of the device and the accuracy of the data. At the same time, the threaded rod and the through hole can further guide the movement of the movable clamp, thereby improving the test efficiency.

[0016] (3) The utility model is provided with a recessed portion of the sliding groove, and the sliding rod is provided with an annular groove, and the rotating wheel is sleeved on the annular groove, the outer side of the rotating wheel matches the recessed portion, and the inner side of the rotating wheel matches the annular groove, thereby limiting the sliding rod in the sliding groove without any upward or downward displacement. When in use, the sliding rod cooperates with the rotating wheel and the rotating ball to move inside the sliding groove, and the sliding rod is moved in the sliding groove through the rotating wheel, thereby reducing the friction with the sliding groove, and reducing the friction and wear between the rotating wheel and the rotating ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a modular expansion joint detection device for a highway bridge according to the present utility model;

[0018] Figure 2 This is a cross-sectional view of the main body of a modular expansion joint detection device for a highway bridge according to the utility model;

[0019] Figure 3 This is a cross-sectional view of a device body and a threaded rod of a modular expansion joint detection device for a highway bridge according to the present invention;

[0020] Figure 4 This is a structural diagram of a reading mechanism of a modular expansion joint detection device for a highway bridge according to the utility model;

[0021] Among them, 1 is the device body; 101 is the top plate; 1011 is the sliding groove; 1012 is the scale; 102 is the side plate; 2 is the positioning plate; 201 is the anti-slip pad; 3 is the reading mechanism; 301 is the scale pointer plate; 302 is the sliding rod; 303 is the annular groove; 304 is the rotating wheel; 305 is the rotating ball; 306 is the nut; 4 is the measuring mechanism; 401 is the idling bearing seat, 402 is the threaded rod; 403 is the movable splint; 404 is the spring; 405 is the fixed splint. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] Example 1

[0024] like Figure 1 The figure shows the overall structure of a modular expansion joint detection device for highway bridges, which includes a device body, a reading mechanism, and a measuring mechanism. The device body includes a top plate, with two side plates symmetrically provided at each end of the top plate. The top plate has a sliding groove along the longitudinal direction, and a scale is provided on the upper side of the top plate in the transverse direction.

[0025] The reading mechanism includes a sliding rod, a scale pointer disk, and a locking assembly. The sliding rod passes through the sliding slot and is slidably connected to the sliding slot. The top end of the sliding rod is fixedly connected to the scale pointer disk, and the bottom end of the sliding rod is fixedly connected to the measuring mechanism. When the sliding rod moves to a preset position, the sliding rod is locked and fixed to the bottom end of the top plate by the locking assembly.

[0026] The measuring mechanism includes a movable clamping plate and a fixed clamping plate, wherein the movable clamping plate is fixedly connected to the bottom end of the sliding rod, and the fixed clamping plate is fixed to a side plate.

[0027] Specifically, such as Figure 1-3 As shown, in this embodiment, the device body of the utility model is a semi-enclosed structure, and the shape of the device body can be C-shaped. This structure is convenient for one-handed grip of the device, and is convenient for carrying and using the device. The top surface of the top plate is provided with a scale, which is used as a reading observation surface, and the two side plates play a supporting role. Since the movable splint is fixed to the bottom end of the sliding rod, the sliding groove simultaneously guides the movement of the sliding rod and the movable splint, and the locking assembly simultaneously limits and fixes the sliding rod and the movable splint. The scale pointer disk of the reading mechanism matches the scale. During measurement, the movable splint and the fixed splint are respectively pressed against the two ends of the expansion joint to be measured. At this time, the corresponding scale is displayed through the scale pointer disk fixed on the top of the sliding groove, representing the spacing of the expansion joint to be measured.

[0028] The usage process is as follows: Before use, push the sliding rod along the sliding groove to move the movable splint closer to the fixed splint. After the movable splint and the fixed splint reach the appropriate distance, fix the sliding rod to the top plate by locking the clamping assembly. At this time, place the side plate on the top surface of the measurement target, and place the movable splint and the fixed splint in the expansion joint to be measured, with one end of the fixed splint close to one end of the expansion joint. Then release the locking assembly, push the sliding rod along the sliding groove to drive the scale pointer to slide on the top of the top plate and point to the corresponding scale, and drive the movable splint to move away from the fixed splint until the movable splint is close to the other end of the expansion joint to be measured. Then fix the sliding rod to the top plate again by locking the clamping assembly, and the spacing between the movable splint and the fixed splint is fixed. At this time, by observing the correspondence between the scale pointer and the scale, the spacing value of the expansion joint to be measured can be read. This utility model features a modular expansion joint detection device for highway bridges with a simple structure and easy operation. After measuring the spacing, the measurement operator's hands are freed, enabling rapid and accurate measurement of highway or bridge expansion joints, thereby improving testing efficiency. Compared with existing technologies, this device overcomes the problem of the user's hands being occupied, requiring assistance in recording data, which results in lower work efficiency.

[0029] The measuring mechanism also includes a threaded rod, two idling bearing seats and a spring. One end of the threaded rod is connected to the other side plate through the idling bearing seat. The movable splint is provided with a through hole and the threaded rod is threadedly connected to the through hole. After the other end of the threaded rod passes through the through hole, it is connected to the fixed splint through the idling bearing seat; the two ends of the spring respectively press against the movable splint and the fixed splint.

[0030] Specifically, in this embodiment, the through hole is provided with an internal thread matching the threaded rod, and the threaded rod and the through hole are threadedly connected. The internal thread of the through hole and the external thread of the threaded rod, plus the function of the idle bearing seat, can reduce friction when the movable splint moves along the threaded rod. Figure 3 As shown, during use, when the fixed and movable plates reach the appropriate distance, the spring is compressed to generate elastic force. When the locking assembly is released, the spring loses its resistance, and under the action of the elastic force, the movable plate is pushed along the threaded lines of the threaded rod in a direction away from the fixed plate. The threaded rod rotates in a spiral until the movable plate fits against one end of the expansion joint. At this time, under the action of the elastic force, the movable plate and the expansion joint are in a tight state, and the sliding rod is fixed by the locking assembly. At this time, the top of the movable plate and the movable plate itself are both fixed. This setting can improve the stability of the device and the accuracy of the data. At the same time, the threaded rod and the through hole can further guide the movement of the movable plate, thereby improving the test efficiency.

[0031] The locking assembly includes a nut, and the lower end of the sliding rod is provided with a thread matching the nut.

[0032] Specifically, such as Figure 4 As shown, the lower end of the sliding rod, the portion extending downward from the sliding slot, is a threaded rod structure. A nut is threadedly connected to the threaded rod structure to achieve a loosened or locked connection between the sliding rod and the bottom end of the top plate, thereby achieving the movement or fixation of the sliding rod and the movable clamping plate. This simple and quick setup frees the measurement operator's hands and improves testing efficiency.

[0033] The sliding rod also includes a rotating wheel, a circular groove is provided at the middle end of the sliding rod, the rotating wheel is sleeved on the circular groove of the sliding rod, and a rotating ball is provided on the inner circumferential surface of the rotating wheel; the surrounding surfaces of the sliding groove have recesses, and the recesses match the rotating wheel.

[0034] Specifically, in this embodiment, the upper end of the sliding rod is arranged in the sliding groove and can move left and right along the sliding groove. Figure 2-4 As shown, the utility model is provided with a recessed portion of the sliding groove, and the sliding rod is provided with an annular groove, and the rotating wheel is sleeved on the annular groove, the outer side of the rotating wheel matches the recessed portion, and the inner side of the rotating wheel matches the annular groove, thereby limiting the sliding rod in the sliding groove without upward and downward deviation. When in use, the sliding rod cooperates with the rotating wheel and the rotating ball to move inside the sliding groove, and the sliding rod is moved in the sliding groove through the rotating wheel, thereby reducing the friction with the sliding groove, and reducing the friction and wear between the rotating wheel and the rotating ball.

[0035] The lower ends of the two side panels are connected to positioning plates, forming an L-shape with the corresponding positioning plates. Anti-slip pads are provided at the bottom ends of the positioning plates. Specifically, the positioning plates increase the contact surface between the ground of the side panels and the surface of the target to be measured, and the anti-slip pads increase friction, preventing positional deviation during testing.

[0036] Example 2

[0037] The difference between this embodiment 2 and embodiment 1 is that the structure of the measuring mechanism is different. In this embodiment, the measuring mechanism also includes a guide slide and a spring. One end of the guide slide is fixedly connected to the other side plate. The movable splint is provided with a through hole that matches the guide slide. The other end of the guide slide passes through the through hole and is fixedly connected to the fixed splint. Specifically, during use, when the fixed splint and the movable splint reach a suitable distance, the spring is compressed to generate elastic force. When the locking assembly is released, the spring loses resistance and, under the action of the elastic force, pushes the movable splint to move in a direction away from the fixed splint until the movable splint fits with one end of the expansion joint. At this time, under the action of the elastic force, the movable splint and the expansion joint are in a tight state. At the same time, the sliding rod is fixed by the locking assembly. At this time, the top of the movable splint and the movable splint itself are both fixed. This setting further guides the movement of the movable splint through the guide slide and the through hole, thereby improving the test efficiency.

[0038] The above specific implementation methods are preferred embodiments of the present invention and cannot limit the present invention. Any other changes or other equivalent replacement methods that do not deviate from the technical solution of the present invention are included in the scope of protection of the present invention.

Claims

1. A modular expansion joint detection device for highway bridges, characterized in that: The device comprises a main body, a reading mechanism and a measuring mechanism. The main body comprises a top plate, two side plates are symmetrically provided at both ends of the top plate, a sliding groove is provided along the longitudinal direction of the top plate, and a scale is provided on the upper side of the top plate in the transverse direction. The reading mechanism includes a sliding rod, a scale pointer disk, and a locking assembly. The sliding rod passes through the sliding slot and is slidably connected to the sliding slot. The top end of the sliding rod is fixedly connected to the scale pointer disk, and the bottom end of the sliding rod is fixedly connected to the measuring mechanism. When the sliding rod moves to a preset position, the sliding rod is locked and fixed to the bottom end of the top plate by the locking assembly. The measuring mechanism includes a movable clamping plate and a fixed clamping plate, wherein the movable clamping plate is fixedly connected to the bottom end of the sliding rod, and the fixed clamping plate is fixed to a side plate.

2. A modular expansion joint detection device for highway bridges according to claim 1, characterized in that: The measuring mechanism also includes a threaded rod, two idling bearing seats and a spring. One end of the threaded rod is connected to the other side plate through the idling bearing seat. The movable splint is provided with a through hole and the threaded rod is threadedly connected to the through hole. After the other end of the threaded rod passes through the through hole, it is connected to the fixed splint through the idling bearing seat; the two ends of the spring respectively press against the movable splint and the fixed splint.

3. A modular expansion joint detection device for highway bridges according to claim 1, characterized in that: The measuring mechanism also includes a guide slide and a spring. One end of the guide slide is fixedly connected to the other side plate. The movable splint is provided with a through hole matching the guide slide. The other end of the guide slide passes through the through hole and is fixedly connected to the fixed splint.

4. A modular expansion joint detection device for highway bridges according to any one of claims 1 to 3, characterized in that: The locking assembly includes a nut, and the lower end of the sliding rod is provided with a thread matching the nut.

5. A modular expansion joint detection device for highway bridges according to any one of claims 1 to 3, characterized in that: The sliding rod also includes a rotating wheel, a circular groove is provided at the middle end of the sliding rod, the rotating wheel is sleeved on the circular groove of the sliding rod, and a rotating ball is provided on the inner circumferential surface of the rotating wheel; the surrounding surfaces of the sliding groove have recesses, and the recesses match the rotating wheel.

6. A modular expansion joint detection device for highway bridges according to any one of claims 1 to 3, characterized in that: The lower ends of the two side plates are respectively connected to positioning plates, and the side plates and the corresponding positioning plates are L-shaped.

7. A modular expansion joint detection device for highway bridges according to claim 6, characterized in that: The bottom end of the positioning plate is provided with an anti-slip pad.

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