Bridge expansion joint detection device

Abstract

The utility model discloses a bridge expansion joint detection device, which comprises a base, a plurality of sliding rods are arranged in the base in a sliding manner, a cylinder body is fixedly arranged at the bottom of each sliding rod, and the bridge expansion joint detection device is characterized in that a lifting threaded shaft is further arranged in the base and is fixedly connected with the cylinder body in a matched manner; a threaded lifting assembly for driving the lifting threaded shaft to move up and down is arranged on the inner side of the base, two swing rods are rotatably arranged in the barrel, internal threaded sleeves are slidably arranged in the swing rods, driving assemblies are arranged in the swing rods, and a swing assembly is further arranged in the barrel. According to the device, a second motor indirectly drives a swing rod to swing out of a groove, a first motor drives a threaded shaft to rotate, then an inner threaded sleeve stretches out of the swing rod, the stretching distance of the inner threaded sleeve is calculated according to the number of turns and the angle of rotation of the first motor, and the stretching distance can be added to the original size of the swing rod; and calculating the width of the expansion joint.

Description

Technical Field

[0001] This utility model relates to the field of engineering testing technology, specifically a bridge expansion joint testing device. Background Technology

[0002] During engineering inspections, dimensional measurements of specific components are involved, such as bridge expansion joints. Since bridge expansion joints are now customized products, their shapes are pre-fabricated at the factory. During installation, they are simply placed between bridge deck panels and secured with concrete, thus fulfilling their function. Due to thermal expansion and contraction, bridge expansion joints undergo deformation. Therefore, recording their dimensions is crucial during engineering inspections, as it reflects their actual condition. However, existing testing devices are less convenient for measuring the width of expansion joints at different depths, prompting extensive research into this issue. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a bridge expansion joint detection device, which can solve the problems in the prior art.

[0004] This utility model is achieved through the following technical solution: A bridge expansion joint detection device of this utility model includes a base, a plurality of sliding rods are slidably arranged inside the base, and a cylinder is fixedly arranged at the bottom of the sliding rods. The device is characterized in that a lifting threaded shaft is also arranged inside the base, the lifting threaded shaft is fixedly connected to the cylinder, a threaded lifting assembly is arranged inside the base to drive the lifting threaded shaft to move up and down, two swing rods are rotatably arranged inside the cylinder, an internal threaded sleeve is slidably arranged inside the swing rod, a driving assembly is arranged inside the swing rod, and a swing assembly is also arranged inside the cylinder.

[0005] In a further technical solution, a handle is provided on one side of the base.

[0006] A further technical solution includes a threaded lifting assembly comprising a bearing housing disposed on the top of the base, a bearing housing containing a bearing, a rotating ring rotatably disposed on the inner ring of the bearing, a toothed ring fixedly disposed on the inner ring of the rotating ring, three meshing gears rotatably disposed on the top of the base, an internal threaded gear rotatably disposed at the center of the base, a lifting threaded shaft passing through the internal threaded gear, the lifting threaded shaft being threadedly connected to the internal threaded gear, the internal threaded gear meshing with the meshing gears, and the toothed ring meshing with the meshing gears.

[0007] In a further technical solution, a housing is fixedly provided on the top of the rotating ring, and the housing covers the slide rod and the lifting threaded shaft.

[0008] A further technical solution includes a drive assembly comprising a groove disposed within the swing arm, a slider slidably disposed within the groove, an internally threaded sleeve disposed on one side of the slider, the internally threaded sleeve sliding out of the swing arm, a first motor disposed on one side of the swing arm, a threaded shaft poweredly connected to one side of the first motor, the threaded shaft extending into the swing arm, the threaded shaft passing through the slider and the internally threaded sleeve, and the threaded shaft being threadedly engaged with the integral structure formed by the internally threaded sleeve and the slider.

[0009] A further technical solution includes a swaying assembly comprising a groove disposed within the cylinder, a rotating seat disposed within the groove, the rotating seat being rotatably connected to the swaying rod, a driven bevel gear disposed on one side of the rotating seat, the driven bevel gear being coaxially connected to the swaying rod, and a second motor disposed within the cylinder, wherein a driving bevel gear is fixedly disposed on the outer surface of the output shafts on both sides of the second motor, the driving bevel gear meshing with the driven bevel gear.

[0010] A further technical solution is provided in the cylinder body, which is equipped with a control module for controlling, powering and transmitting signals to the drive component and the swing component. The control module includes a battery, a signal transmission module and a controller. The battery powers the drive component and the swing component. The controller is electrically connected to the drive component and the swing component to transmit control signals. The signal transmission module is electrically connected to the controller. The signal transmission module also establishes a signal connection with the mobile phone.

[0011] The beneficial effects of this utility model are as follows: First, for the device as a whole, after the swing rod is located inside the cylinder, the working part of the device can pass through the gap of the bridge expansion joint. On the one hand, the different expansion and contraction of the cylinder in the bridge expansion joint can be adjusted by the threaded lifting assembly. On the other hand, the swing rod can be swung out of the cylinder by the drive assembly and the swing assembly, and then the internal threaded sleeve can be extended from the swing rod and abut against both ends of the bridge expansion joint to measure its width. The measurement information is fed back to the mobile APP through the control module, which is very efficient.

[0012] Second, by establishing a signal connection between the control module and the mobile APP, and then electrically connecting the control module to the drive component and the swing component respectively, the device can be easily operated by personnel. Attached Figure Description

[0013] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of a bridge expansion joint detection device according to the present invention;

[0015] Figure 2 for Figure 1 A schematic diagram of the internal structure of the device.

[0016] Figure 3 for Figure 2 A schematic diagram at point A in the middle;

[0017] Figure 4 for Figure 3 A further cross-sectional schematic diagram of the central device;

[0018] Figure 5 for Figure 2 A schematic diagram at point B in the middle;

[0019] Figure 6 This is a schematic diagram of the signal transmission of the control module;

[0020] In the figure, there are: swing rod 11, cylinder 13, handle 14, shell 15, rotating ring 16, base 17, slide rod 21, lifting threaded shaft 23, internal threaded gear 24, meshing gear 31, gear ring 32, bearing 33, bearing seat 34, groove 41, threaded shaft 42, slider 43, internal threaded sleeve 44, slide groove 45, rotating seat 46, driven bevel gear 47, driving bevel gear 48, second motor 49, and first motor 51. Detailed Implementation

[0021] like Figures 1-6 As shown, this utility model will be described in detail. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The projection relationship of this utility model is consistent in the up, down, left, right, front, and back directions. A bridge expansion joint detection device includes a base 17, a plurality of sliding rods 21 are slidably arranged inside the base 17, a cylinder 13 is fixedly arranged at the bottom of the sliding rods 21, a lifting threaded shaft 23 is also arranged inside the base 17, the lifting threaded shaft 23 is fixedly connected to the cylinder 13, a threaded lifting assembly is arranged inside the base 17 to drive the lifting threaded shaft 23 to move up and down, two swing rods 11 are rotatably arranged inside the cylinder 13, an internal threaded sleeve 44 is slidably arranged inside the swing rods 11, a driving assembly is arranged inside the swing rods 11 to drive the internal threaded sleeve 44 to move telescopically, a swing assembly is also arranged inside the cylinder 13 to drive the two swing rods 11 to swing, and a control module is arranged inside the cylinder 13 to control, supply power to and transmit signals to the driving assembly and the swing assembly.

[0022] Advantageously, a handle 14 is provided on one side of the base 17 to facilitate operation by personnel.

[0023] Advantageously, the threaded lifting assembly includes a bearing seat 34 disposed on the top of the base 17, a bearing 33 disposed inside the bearing seat 34, a rotating ring 16 rotatably disposed on the inner ring of the bearing 33, a toothed ring 32 fixedly disposed on the inner ring of the rotating ring 16, three meshing gears 31 rotatably disposed on the top of the base 17, an internal threaded gear 24 rotatably disposed at the center of the base 17, a lifting threaded shaft 23 passes through the internal threaded gear 24, the lifting threaded shaft 23 and the internal threaded gear 24 are threadedly connected, the internal threaded gear 24 meshes with the meshing gears 31, and the toothed ring 32 meshes with the meshing gears 31.

[0024] Advantageously, a housing 15 is fixedly provided on the top of the rotating ring 16, and the housing 15 covers the slide bar 21 and the lifting threaded shaft 23.

[0025] Advantageously, the drive assembly includes a groove 45 disposed within the swing arm 11, a slider 43 slidably disposed within the groove 45, an internally threaded sleeve 44 disposed on one side of the slider 43, the internally threaded sleeve 44 sliding out from the swing arm 11, a first motor 51 disposed on one side of the swing arm 11, a threaded shaft 42 poweredly connected to one side of the first motor 51, the threaded shaft 42 extending into the swing arm 11, the threaded shaft 42 passing through the slider 43 and the internally threaded sleeve 44, and the threaded shaft 42 forming an integral structure with the internally threaded sleeve 44 and the slider 43 in a threaded engagement connection.

[0026] Advantageously, the swing assembly includes a groove 41 disposed in the cylinder 13, a rotating seat 46 disposed in the groove 41, the rotating seat 46 being rotatably connected to the swing rod 11, a driven bevel gear 47 disposed on one side of the rotating seat 46, the driven bevel gear 47 being coaxially connected to the swing rod 11 and rotating as the swing rod 11 rotates, a second motor 49 is also disposed in the cylinder 13, and a driving bevel gear 48 is fixedly disposed on the outer surface of the output shafts on both sides of the second motor 49, the driving bevel gear 48 meshing with the driven bevel gear 47.

[0027] Advantageously, the control module includes a battery, a signal transmission module, and a controller. The battery powers the drive component and the swing component. The controller is electrically connected to the drive component and the swing component to transmit control signals. The signal transmission module is electrically connected to the controller and also establishes a signal connection with a mobile phone. Personnel can control the operation and stop of the drive component and the swing component through an APP on their mobile phone.

[0028] Advantageously, the controller is electrically connected to the second motor 49 and the first motor 51 to transmit control signals, and the battery is electrically connected to the second motor 49 and the first motor 51 to provide power.

[0029] The device indirectly drives the swing rod 11 to swing out of the groove 41 through the second motor 49. The first motor 51 drives the threaded shaft 42 to rotate, thereby causing the internal threaded sleeve 44 to extend out of the swing rod 11. The extension distance of the internal threaded sleeve 44 is calculated based on the number of rotations and angle of the first motor 51. The width of the expansion joint can be calculated by adding the extension distance to the original size of the swing rod 11.

[0030] By adjusting the cylinder 13 up and down relative to the base 17, the swing rod 11 in the device can be moved at different depths of the expansion joint, and then the width of the expansion joint corresponding to different depths can be measured respectively.

[0031] By rotating the rotating ring 16 and the housing 15, the gear ring 32 is rotated. Since the gear ring 32 meshes with the meshing gear 31, it can drive the meshing gear 31 to rotate. Since the three meshing gears 31 mesh with the internal thread gear 24, they can drive the internal thread gear 24 to rotate. Since the top of the cylinder 13 is fixedly provided with the sliding rod 21 and the lifting thread shaft 23, after the internal thread gear 24 and the lifting thread shaft 23 are threadedly connected, the cylinder 13 can be driven to move up and down.

[0032] After the second motor 49 starts working, it drives the active bevel gear 48 to rotate. After the active bevel gear 48 meshes with the driven bevel gear 47, it can drive the swing rods 11 on both sides to swing out of the groove 41 or swing into the groove 41.

[0033] Personnel can control the start of the second motor 49 and the first motor 51 by operating an APP on their mobile phones. The number of revolutions and degrees of rotation of the first motor 51 can be fed back to the APP in real time and converted into dimensional data according to the lead corresponding to the threaded shaft 42, so that personnel can quickly obtain measurement information.

[0034] During the measurement process, personnel can achieve stable measurement by holding the handle 14, or by using external space supports or other structures to achieve stable measurement and obtain more accurate data.

[0035] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without creative effort should be included within the protection scope of this utility model; therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A bridge expansion joint detection device, comprising a base (17), wherein a plurality of sliding rods (21) are slidably disposed within the base (17), and a cylinder (13) is fixedly disposed at the bottom of each sliding rod (21), characterized in that, The base (17) is also provided with a lifting threaded shaft (23), which is fixedly connected to the cylinder (13). The base (17) is provided with a threaded lifting assembly that drives the lifting threaded shaft (23) to move up and down. The cylinder (13) is provided with two swing rods (11) that rotate. The swing rods (11) are provided with an internal threaded sleeve (44) that slides inside. The swing rods (11) are provided with a driving assembly. The cylinder (13) is also provided with a swing assembly.

2. The bridge expansion joint detection device according to claim 1, characterized in that: A handle (14) is provided on one side of the base (17).

3. The bridge expansion joint detection device according to claim 1, characterized in that: The threaded lifting assembly includes a bearing seat (34) disposed on the top of the base (17), a bearing (33) disposed inside the bearing seat (34), a rotating ring (16) rotatably disposed on the inner ring of the bearing (33), a toothed ring (32) fixedly disposed on the inner ring of the rotating ring (16), three meshing gears (31) rotatably disposed on the top of the base (17), an internal threaded gear (24) rotatably disposed at the center of the base (17), the lifting threaded shaft (23) passes through the internal threaded gear (24), the lifting threaded shaft (23) is threadedly connected to the internal threaded gear (24), the internal threaded gear (24) meshes with the meshing gear (31), and the toothed ring (32) meshes with the meshing gear (31).

4. The bridge expansion joint detection device according to claim 3, characterized in that: The top of the rotating ring (16) is fixedly provided with a housing (15), which covers the slide rod (21) and the lifting threaded shaft (23).

5. A bridge expansion joint detection device according to claim 1, characterized in that: The drive assembly includes a groove (45) disposed within the swing arm (11), a slider (43) slidably disposed within the groove (45), an internally threaded sleeve (44) disposed on one side of the slider (43), the internally threaded sleeve (44) sliding out from the swing arm (11), a first motor (51) disposed on one side of the swing arm (11), a threaded shaft (42) being poweredly connected to one side of the first motor (51), the threaded shaft (42) extending into the swing arm (11), the threaded shaft (42) passing through the slider (43) and the internally threaded sleeve (44), and the threaded shaft (42) being threadedly connected to the integral structure formed by the internally threaded sleeve (44) and the slider (43).

6. The bridge expansion joint detection device according to claim 1, characterized in that: The swing assembly includes a groove (41) disposed in the cylinder (13), a rotating seat (46) disposed in the groove (41), the rotating seat (46) being rotatably connected to the swing rod (11), a driven bevel gear (47) disposed on one side of the rotating seat (46), the driven bevel gear (47) being coaxially connected to the swing rod (11), a second motor (49) is also disposed in the cylinder (13), and a driving bevel gear (48) is fixedly disposed on the outer surface of the output shaft on both sides of the second motor (49), the driving bevel gear (48) meshing with the driven bevel gear (47).

7. A bridge expansion joint detection device according to any one of claims 1-6, characterized in that: The cylinder (13) is equipped with a control module for controlling, powering and transmitting signals to the drive component and the swing component. The control module includes a battery, a signal transmission module and a controller. The battery powers the drive component and the swing component. The controller is electrically connected to the drive component and the swing component to transmit control signals. The signal transmission module is electrically connected to the controller.

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