A fiber grating expansion joint testing device for civil engineering

Abstract

The present invention discloses a fiber grating expansion joint test device for civil engineering, comprising a shell, a fixing plate, a positioning rod, a placement frame and a clamping structure, wherein a fixing plate is provided at the top of the inner part of the shell, and a clamping structure with equal spacing is fixed at the connection position between the fixing plate and the shell, a positioning rod is provided inside the shell, and placement frames are fixed at both ends of the positioning rod, and a supporting short column is installed inside the placement frame, a compression structure is installed on one side of the positioning rod, a boss is fixed on the top of the fixing plate, and a handle is installed on the top of the boss, a scale frame is fixed on one side of the shell surface, and a control panel is fixed on one side of the boss surface. The present invention not only improves the accuracy of the test device when in use, reduces the labor when the test device is in use, but also reduces the difficulty of operation when the test is used.

Description

Technical Field

[0001] The invention relates to the technical field of testing devices, in particular to a fiber grating expansion joint testing device for civil engineering. Background Art

[0002] With the continuous development and improvement of people's living standards, various technologies are constantly improving, and the application of civil engineering can be seen everywhere. Fiber Bragg grating is indispensable in information transmission, among which the fiber Bragg grating expansion joint test device is more important.

[0003] There are many types of such test devices on the market today, which can basically meet people's needs, but there are still certain problems. The specific problems are as follows:

[0004] (1) Such conventional test devices are not convenient to disassemble and use, which seriously affects the convenience of using the test devices;

[0005] (2) The traditional test device of this type has low precision when used, which greatly affects the accuracy of the test device when used;

[0006] (3) Traditional testing devices of this type require manual resetting when used, which causes great trouble to people. Summary of the invention

[0007] The object of the present invention is to provide a fiber grating expansion joint testing device for civil engineering, so as to solve the problems in the above background technology that the testing device is inconvenient to disassemble and assemble, has low precision and is complicated to operate.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fiber grating expansion joint testing device for civil engineering, comprising an outer shell, a fixing plate, a positioning rod, a placement frame and a clamping structure, wherein a fixing plate is arranged at the top end of the inner part of the outer shell, and a clamping structure with equal spacing is fixed at the connection position between the fixing plate and the outer shell, a positioning rod is arranged inside the outer shell, and a placement frame is fixed at both ends of the positioning rod, and a supporting short column is installed inside the placement frame, a long column is fixed at the center position of one end of the placement frame, and sliding rods are arranged at both ends of the long column, and a distance sensor is installed on one side of the sliding rod, a compression structure is installed on one side of the positioning rod, a boss is fixed on the top end of the fixing plate, and a handle is installed on the top end of the boss, a scale frame is fixed on one side of the outer shell surface, a control panel is fixed on one side of the boss surface, and the input end of the single-chip microcomputer inside the control panel is electrically connected to the output end of the distance sensor.

[0009] Preferably, a support is welded to the bottom end of the shell, and the width of the support is greater than the width of the shell.

[0010] Preferably, a base plate, a silicone filling plate, a cavity, a micro spring wire and a sandwich plate are sequentially arranged inside the compression structure, a silicone filling plate is fixed inside the base plate, and a cavity is installed on one side of the silicone filling plate.

[0011] Preferably, a sandwich panel is arranged on one side inside the base panel, and micro spring wires are evenly arranged on one side of the sandwich panel.

[0012] Preferably, a fixing block is sleeved on the surface of the positioning rod, and two sets of connecting rods are hinged on one side of the fixing block.

[0013] Preferably, a rectangular block is hinged at one end of the connecting rod, and one end of the rectangular block is fixedly connected to one end of the sliding rod.

[0014] Preferably, a return spring is installed at one end of the sliding rod and the long column, and a pressing plate is fixed at one end of the return spring.

[0015] Preferably, a mounting platform, a mounting block, a groove, a pillar, a compression spring, an elastic hemisphere and an inclined column are sequentially arranged inside the clamping structure, a mounting platform at one end of the bottom mounting platform is provided with a clamping block, and one end of the clamping block is fixedly connected to the placement frame, a pillar is installed on one side of the mounting platform, and inclined columns are arranged on both sides of the pillar.

[0016] Preferably, a groove is fixed inside the clamping block, an elastic hemisphere is welded on one side of the inclined column, and one end of the elastic hemisphere extends into the interior of the groove, compression springs are welded on both sides of the pillar, and one end of the compression spring is fixedly connected to one end of the inclined column.

[0017] Compared with the prior art, the invention has the following beneficial effects: the fiber grating expansion joint test device for civil engineering not only improves the accuracy of the test device when in use, reduces the labor when in use of the test device, but also reduces the difficulty of operation when in use of the test;

[0018] (1) By providing a base plate, a silicone filling plate, a cavity, a micro spring wire and a sandwich plate, the base plate and the surface of the crack are in contact with each other and generate a certain force, and the force is transmitted to the inside of the micro spring wire through the action of the silicone filling plate and the cavity. The sandwich plate acts on the surface of the positioning rod to push the outer shell to slide on the surface of the supporting short column, thereby realizing the double-sided compression function of the test device, thereby improving the accuracy of the test device when in use;

[0019] (2) By providing a placement frame, a sliding rod, a connecting rod, a long column, a pressing plate and a reset spring, the operating handle is used to remove the entire device from the crack. The rectangular block pushes the sliding rod to the original unstressed position under the cooperation of the pressing plate and the reset spring, thereby reducing the number of adjustment steps, realizing the automatic reset function of the test device, and reducing the labor when using the test device;

[0020] (3) By providing a mounting platform, a clamping block, a pillar, a compression spring, an elastic hemisphere and an inclined column, the mounting platform is rubbed to reduce the distance between the pillar and the inclined column due to the compression of the compression spring, so that the elastic hemisphere is pulled out from the inside of the groove, and the mounting platform and the clamping block are separated as a whole, resulting in the separation of the outer shell and the fixing plate, thereby realizing the disassembly and assembly function of the test device, thereby reducing the difficulty of operation during testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the appearance structure of the present invention;

[0022] Figure 2 It is a front cross-sectional structural schematic diagram of the present invention;

[0023] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 4 It is a schematic diagram of a front cross-sectional structure of a compression structure of the present invention;

[0025] Figure 5 It is a rear view structural schematic diagram of the sliding rod of the present invention.

[0026] In the figure: 1. shell; 2. scale frame; 3. boss; 4. handle; 5. control panel; 6. fixing plate; 7. support; 8. compression structure; 801. base plate; 802. silicone filling plate; 803. cavity; 804. micro spring wire; 805. sandwich plate; 9. distance sensor; 10. fixing block; 11. positioning rod; 12. placement frame; 13. sliding rod; 14. connecting rod; 15. long column; 16. rectangular block; 17. supporting short column; 18. clamping structure; 1801. mounting table; 1802. clamping block; 1803. groove; 1804. pillar; 1805. compression spring; 1806. elastic hemisphere; 1807. inclined column; 19. pressing piece; 20. reset spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-5, an embodiment of the present invention: a fiber Bragg grating expansion joint test device for civil engineering, comprising a housing 1, a fixing plate 6, a positioning rod 11, a placement frame 12 and a clamping structure 18, the top of the interior of the housing 1 is provided with a fixing plate 6, the bottom of the housing 1 is welded with a support 7, and the width of the support 7 is greater than the width of the housing 1 for easy placement, and the fixing plate 6 and the housing 1 are connected at a position fixed with a clamping structure 18 at equal intervals;

[0029] The interior of the clamping structure 18 is provided with a mounting platform 1801, a clamping block 1802, a groove 1803, a pillar 1804, a compression spring 1805, an elastic hemisphere 1806 and an inclined column 1807 in sequence. The clamping block 1802 is provided at one end of the bottom mounting platform 1801, and one end of the clamping block 1802 is fixedly connected to the placement frame 12. The pillar 1804 is installed on one side of the mounting platform 1801, and the inclined columns 1807 are provided on both sides of the pillar 1804. The inside of the clamping block 1802 is fixed with a groove 1803, and the elastic hemisphere 1806 is welded on one side of the inclined column 1807, and one end of the elastic hemisphere 1806 extends to the inside of the groove 1803. The compression springs 1805 are welded on both sides of the pillar 1804, and one end of the compression spring 1805 is fixedly connected to one end of the inclined column 1807.

[0030] When in use, the mounting platform 1801 is rubbed to reduce the distance between the pillar 1804 and the inclined pillar 1807 due to the compression of the compression spring 1805, so that the elastic hemisphere 1806 is pulled out from the inside of the groove 1803, so that the mounting platform 1801 and the clamping block 1802 are separated as a whole, so that the housing 1 is separated from the fixing plate 6, and the disassembly function of the test device is realized, thereby reducing the difficulty of operation during testing;

[0031] A positioning rod 11 is provided inside the housing 1, a fixed block 10 is mounted on the surface of the positioning rod 11, and two sets of connecting rods 14 are hinged on one side of the fixed block 10, a rectangular block 16 is hinged on one end of the connecting rod 14, and one end of the rectangular block 16 is fixedly connected to one end of the sliding rod 13, and a return spring 20 is installed on one end of the sliding rod 13 and a long column 15, and a pressing plate 19 is fixed on one end of the return spring 20 for resetting after compression, and a placement frame 12 is fixed on both ends of the positioning rod 11, and a supporting short column 17 is installed inside the placement frame 12, a long column 15 is fixed at the center position of one end of the placement frame 12, and both ends of the long column 15 are provided with a sliding rod 13, and a distance sensor 9 is installed on one side of the sliding rod 13, and the model of the distance sensor 9 can be E2EM-X16MX, and a compression structure 8 is installed on one side of the positioning rod 11;

[0032] The compression structure 8 is provided with a base plate 801, a silicone filling plate 802, a cavity 803, a micro spring wire 804 and a sandwich plate 805 in sequence. The base plate 801 is fixed with a silicone filling plate 802, and one side of the silicone filling plate 802 is provided with a cavity 803. The base plate 801 is provided with a sandwich plate 805 on one side, and the micro spring wire 804 is evenly provided on one side of the sandwich plate 805.

[0033] When in use, the base plate 801 contacts the surface of the crack and generates a certain force, which is transmitted to the inside of the micro spring wire 804 through the action of the silicone filling plate 802 and the cavity 803, and finally acts on the surface of the positioning rod 11 through the sandwich plate 805, pushing the housing 1 to slide on the surface of the supporting short column 17, realizing the double-sided compression function of the test device, thereby improving the accuracy of the test device when in use;

[0034] A boss 3 is fixed to the top of the fixing plate 6, and a handle 4 is installed on the top of the boss 3. A scale frame 2 is fixed to one side of the surface of the shell 1, and a control panel 5 is fixed to one side of the surface of the boss 3. The model of the control panel 5 can be KTP600, and the input end of the single-chip microcomputer inside the control panel 5 is electrically connected to the output end of the distance sensor 9.

[0035] Working principle: When using this test device, first connect it to the external power supply, rub the mounting platform 1801, so that the compression of the compression spring 1805 reduces the distance between the pillar 1804 and the inclined column 1807, and the elastic hemisphere 1806 is pulled out from the inside of the groove 1803, so that the mounting platform 1801 and the clamping block 1802 are separated as a whole, so that the shell 1 is separated from the fixing plate 6, and the disassembly and assembly function of the test device is realized, thereby reducing the difficulty of operation during testing, and then operate the handle 4 to place the supporting short column 17 inside the crack. At the same time, the base plate 801 and the surface of the crack are in contact with each other and generate a certain force. The force is transmitted to the inside of the micro spring wire 804 through the action of the silicone filling plate 802 and the cavity 803, and finally acts on the surface of the positioning rod 11 through the sandwich plate 805, pushing the shell 1 to slide on the surface of the supporting short column 17, realizing the double-sided compression function of the test device, thereby improving In order to improve the accuracy of the test device when in use, the connecting rod 14 pushes the sliding rod 13 to slide along the long column 15, the distance sensor 9 detects the distance between adjacent sliding rods 13 and sends a signal to the inside of the control panel 5, and the span of the crack is known according to the compressed distance, and finally the handle 4 is operated to remove it from the crack as a whole, and the rectangular block 16, with the cooperation of the pressing sheet 19 and the reset spring 20, pushes the sliding rod 13 to the original unstressed position, reducing the steps in adjustment and realizing the automatic reset function of the test device, thereby reducing the labor workload when using the test device and completing the use of the test device.

[0036] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A civil engineering expansion joint testing device, comprising a housing (1), a fixing plate (6), a positioning rod (11), a placement frame (12) and a clamping structure (18), characterized in that: A fixing plate (6) is arranged at the top end of the housing (1), and a clamping structure (18) with equal spacing is fixed at the connection position between the fixing plate (6) and the housing (1). A positioning rod (11) is arranged inside the housing (1), and a placement frame (12) is fixed at both ends of the positioning rod (11), and a supporting short column (17) is installed inside the placement frame (12). A long column (15) is fixed at the center position of one end of the placement frame (12), and sliding rods (13) are arranged at both ends of the long column (15), and a distance sensor (9) is installed on one side of the sliding rod (13). A compression structure (8) is provided, a boss (3) is fixed on the top of the fixing plate (6), and a handle (4) is installed on the top of the boss (3), a scale frame (2) is fixed on one side of the surface of the housing (1), a control panel (5) is fixed on one side of the surface of the boss (3), and the input end of the single chip microcomputer inside the control panel (5) is electrically connected to the output end of the distance sensor (9), and a base plate (801), a silicone filling plate (802), a cavity (803), a micro spring wire (804) and a sandwich plate (805) are arranged in sequence inside the compression structure (8), and a silicone filling plate (802) is fixed inside the base plate (801). The silicone filling plate (802) is provided with a cavity (803) on one side of the silicone filling plate (802); a sandwich plate (805) is provided on one side of the base plate (801); and micro spring wires (804) are evenly provided on one side of the sandwich plate (805); a mounting platform (1801), a clamping block (1802), a groove (1803), a pillar (1804), a compression spring (1805), an elastic hemisphere (1806) and an inclined column (1807) are sequentially provided inside the clamping structure (18); a clamping block (1802) is provided at one end of the bottom mounting platform (1801); and the clamping block (1802) is provided at one end of the bottom mounting platform (1801). 802) is fixedly connected to the placement frame (12), a pillar (1804) is installed on one side of the mounting platform (1801), and inclined pillars (1807) are arranged on both sides of the pillar (1804), a groove (1803) is fixedly provided inside the clamping block (1802), an elastic hemisphere (1806) is welded to one side of the inclined pillar (1807), and one end of the elastic hemisphere (1806) extends to the inside of the groove (1803), a compression spring (1805) is welded to both sides of the pillar (1804), and one end of the compression spring (1805) is fixedly connected to one end of the inclined pillar (1807).

2. The expansion joint testing device for civil engineering according to claim 1, characterized in that: A support (7) is welded to the bottom end of the shell (1), and the width of the support (7) is greater than the width of the shell (1).

3. The expansion joint testing device for civil engineering according to claim 1, characterized in that: A fixing block (10) is sleeved on the surface of the positioning rod (11), and two groups of connecting rods (14) are hinged on one side of the fixing block (10).

4. The expansion joint testing device for civil engineering according to claim 3, characterized in that: One end of the connecting rod (14) is hinged with a rectangular block (16), and one end of the rectangular block (16) is fixedly connected to one end of the sliding rod (13).

5. The expansion joint testing device for civil engineering according to claim 1, characterized in that: One end of the sliding rod (13) and the long column (15) are both equipped with a return spring (20), and one end of the return spring (20) is fixed with a pressing plate (19).

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