Bridge static displacement detector convenient to install

Abstract

The utility model relates to the technical field of bridge detection, and discloses a bridge static displacement detector convenient to install, which comprises a base and a dial indicator, a plurality of fixing holes are arranged on the surface of the base, two partition plates are fixed at the top of the base, a guide plate is arranged between the partition plates at two sides, and the bottom of the guide plate is fixedly connected with the top of the base. A connecting plate and a connecting seat are slidably connected to the surface of the guide plate, a positioning mechanism is mounted on the surface of the connecting plate, a lead screw penetrates through the surface of the connecting plate in a threaded mode, the bottom of the lead screw is rotatably connected with the top of the connecting seat, a connecting block is fixed to the back face of the dial indicator, and a groove matched with the connecting block is formed in the surface of the connecting seat. According to the bridge static displacement detector convenient to install, through mutual cooperation of all the components, it is ensured that the dial indicator is convenient and rapid to install and disassemble, meanwhile, the stability and reliability of the device are ensured, and guarantee is provided for accurate detection of bridge static displacement.

Description

Technical Field

[0001] This utility model relates to the field of bridge inspection technology, specifically to a bridge static displacement detector that is easy to install. Background Technology

[0002] A bridge static displacement detector is a device used to detect the displacement of a bridge under static conditions during bridge inspection. When conducting bridge load tests, using a level is relatively slow, and the accuracy of the data is affected by many factors. Therefore, a suspended dial gauge is used for detection.

[0003] Utility model patent CN217845568U discloses a bridge static displacement detector, including a mounting base. A dial gauge for detecting bridge deflection is mounted on the top of the mounting base. A fixing component for stabilizing the dial gauge is mounted on the bottom of the dial gauge. A pressure component for fixing the dial gauge in conjunction with the fixing component is mounted on the top of the dial gauge. This utility model includes a fixing component and a pressure component. A support plate is fixedly connected to a fixing ring on its top. A buffer sleeve for protecting the dial gauge is fixedly connected to the inner wall of the fixing ring. A moving head is fitted into the buffer sleeve, which coincides with the axis of the dial gauge. A lead screw is threadedly connected to a connecting plate. A turning wheel for easy rotation by the user is fixedly connected to the top of the lead screw. A pressure plate for pressing the dial gauge is rotatably connected to the bottom of the lead screw via a bearing. The pressure plate is located on top of the dial gauge. This design is easy to install and use, allowing for single-person operation and facilitating the detection of bridge static deflection by testing personnel.

[0004] However, the above-mentioned existing technical solutions still have the following shortcomings: the dial gauge of the device is not easy to disassemble and replace after installation, which makes it difficult to inspect and maintain the device. Therefore, we propose a bridge static displacement detector that is easy to install. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bridge static displacement detector that is easy to install, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bridge static displacement detector that is easy to install, including a base and a dial indicator. The base has multiple fixing holes on its surface. Two partitions are fixed to the top of the base. A guide plate is provided between the two partitions on both sides. The bottom of the guide plate is fixedly connected to the top of the base. A connecting plate and a connecting seat are slidably connected to the surface of the guide plate. A positioning mechanism is installed on the surface of the connecting plate. A lead screw is threaded through the surface of the connecting plate. The bottom of the lead screw is rotatably connected to the top of the connecting seat. A connecting block is fixed to the back of the dial indicator. A groove for the connecting block is provided on the surface of the connecting seat. A pin is slidably passed through the surface of the connecting seat. A through hole for the pin is provided on the surface of the connecting block. A support plate is fixed to the top of the base. A fixing ring is fixed to the top of the support plate. A buffer sleeve for the bottom moving head of the dial indicator to pass through is fixed to the inner wall of the fixing ring.

[0007] Preferably, the positioning mechanism includes a U-shaped plate, which is fixed to the surface of the connecting plate. A positioning rod slides through the surface of the U-shaped plate. The surface of the guide plate has multiple slots for inserting the positioning rod. One end of the positioning rod is fixed with a pull plate.

[0008] Preferably, a spacer is fixed to the surface of the positioning rod, a spring is fixed to one end of the spacer, and one end of the spring is fixedly connected to the inner wall of the U-shaped plate.

[0009] Preferably, a guide plate is fixed to the surface of the partition plate, and guide grooves are provided on the surfaces of the connecting plate and the connecting seat to cooperate with the guide plate. The guide grooves are slidably connected to the surface of the guide plate.

[0010] Preferably, the pin has threads on its surface, and a wing nut is threaded onto the pin.

[0011] Preferably, one end of the positioning rod is semi-circular, and the edge of the slot is chamfered.

[0012] Preferably, the connecting plate, connecting seat, and base are all made of aluminum alloy.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] The coordinated operation of the various components of this device makes the installation and disassembly of the dial indicator more convenient, greatly improving the efficiency of the inspection work. Inspection personnel can quickly complete the installation and debugging of the device, reducing working time. At the same time, it eliminates the need for complex tools and multiple people to work together, reducing labor costs and operational difficulty. During the inspection process, the stability of the device is fully guaranteed. The various fixing and guiding structures effectively prevent component displacement and shaking, ensuring the accuracy of the dial indicator measurement data and providing reliable equipment support for the accurate monitoring of bridge static displacement. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0017] Figure 3 This is a partial structural schematic diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the positioning mechanism in this utility model.

[0019] The components are as follows: 1. Base; 2. Dial indicator; 3. Partition plate; 4. Guide plate; 5. Positioning mechanism; 501. U-shaped plate; 502. Positioning rod; 503. Pull plate; 504. Slot; 505. Spacer; 506. Spring; 6. Support plate; 7. Fixing ring; 8. Buffer sleeve; 9. Connecting plate; 10. Lead screw; 11. Connecting seat; 12. Connecting block; 13. Groove; 14. Pin; 15. Wing nut; 16. Guide plate; 17. Guide groove. Detailed Implementation

[0020] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0021] Please see Figure 1-4 A bridge static displacement detector that is easy to install includes a base 1 and a dial indicator 2. The base 1 has multiple fixing holes on its surface. Two partitions 3 are fixed to the top of the base 1. A guide plate 4 is arranged between the two partitions 3. The bottom of the guide plate 4 is fixedly connected to the top of the base 1. A connecting plate 9 and a connecting seat 11 are slidably connected to the surface of the guide plate 4. A positioning mechanism 5 is installed on the surface of the connecting plate 9. A lead screw 10 is threaded through the surface of the connecting plate 9. The bottom of the lead screw 10 is rotatably connected to the top of the connecting seat 11. A connecting block 12 is fixed to the back of the dial indicator 2. A groove 13 is opened on the surface of the connecting seat 11 to accommodate the connecting block 12. A pin 14 is slidably passed through the surface of the connecting seat 11. A through hole is opened on the surface of the connecting block 12 to accommodate the pin 14. A support plate 6 is fixed to the top of the base 1. A fixing ring 7 is fixed to the top of the support plate 6. A buffer sleeve 8 is fixed to the inner wall of the fixing ring 7 to accommodate the bottom moving head of the dial indicator 2.

[0022] Through the above technical solution, multiple fixing holes on the surface of the base 1 are used to fix the entire device in a suitable position on the bridge. The two partitions 3 fixed on the top of the base 1 provide support and limit the movement. The bottom of the guide plate 4 is fixedly connected to the top of the base 1. The connecting plate 9 and the connecting seat 11 are slidably connected on the surface of the guide plate 4 for easy position adjustment. The positioning mechanism 5 installed on the surface of the connecting plate 9 can position the connecting plate 9. The lead screw 10 passes through the connecting plate 9 and is rotatably connected to the top of the connecting seat 11. Rotating the lead screw 10 can drive the connecting seat 11 to move. The connecting block 12 on the back of the dial indicator 2 is placed into the groove 13 of the connecting seat 11. The pin 14 passes through the through hole of the connecting block 12 to achieve quick installation and fixation of the dial indicator 2. The support plate 6, the fixing ring 7, and the buffer sleeve 8 are used to protect the bottom moving head of the dial indicator 2 so that it can work normally. Through the cooperation of each component, the installation and disassembly of the dial indicator 2 are facilitated, the maintainability and convenience of the device are improved, and the testing personnel can easily carry out the static deflection testing of the bridge.

[0023] The positioning mechanism 5 includes a U-shaped plate 501, which is fixed to the surface of the connecting plate 9. A positioning rod 502 slides through the surface of the U-shaped plate 501. The guide plate 4 has multiple slots 504 for inserting the positioning rod 502. A pull plate 503 is fixed to one end of the positioning rod 502.

[0024] With the above technical solution, when it is necessary to position the connecting plate 9, the positioning rod 502 is slid into the corresponding slot 504, thereby fixing the position of the connecting plate 9 on the surface of the guide plate 4. This fixing method is convenient to operate and can quickly and accurately position the connecting plate 9, ensuring that the position of the connecting plate 9 is stable when installing the dial indicator 2 or performing testing work.

[0025] A spacer 505 is fixed to the surface of the positioning rod 502. A spring 506 is fixed to one end of the spacer 505. One end of the spring 506 is fixedly connected to the inner wall of the U-shaped plate 501.

[0026] With the above technical solution, when the positioning rod 502 is pulled, the spring 506 is stretched and generates elastic force. When the positioning rod 502 is put into the slot 504, the elastic force of the spring 506 makes the positioning rod 502 and the slot 504 in close contact, thereby enhancing the stability of positioning.

[0027] A guide plate 16 is fixed on the surface of the partition plate 3. The surfaces of the connecting plate 9 and the connecting seat 11 are provided with guide grooves 17 that are used in conjunction with the guide plate 16. The guide grooves 17 are slidably connected to the surface of the guide plate 16.

[0028] Through the above technical solution, during the movement of the connecting plate 9 and the connecting seat 11, the guide plate 16 slides in the guide groove 17, which plays a guiding and limiting role, ensuring that the connecting plate 9 and the connecting seat 11 move smoothly in the predetermined direction.

[0029] The pin 14 has threads on its surface, and a wing nut 15 is threaded onto the pin 14.

[0030] With the above technical solution, after the pin 14 passes through the through hole of the connecting block 12, the wing nut 15 is rotated to tighten it along the thread of the pin 14, thereby fixing the connecting block 12 on the connecting seat 11 and realizing the firm installation of the dial indicator 2.

[0031] The positioning rod 502 has a semi-circular structure at one end, and the edge of the slot 504 has a chamfered structure design.

[0032] With the above technical solution, one end of the positioning rod 502 has a semi-circular structure, which makes it easier to align and enter when inserted into the slot 504. The chamfered structure design at the edge of the slot 504 also facilitates the insertion of the positioning rod 502.

[0033] The connecting plate 9, connecting seat 11 and base 1 are all made of aluminum alloy.

[0034] Through the above technical solutions, aluminum alloy material has the characteristics of being lightweight, high-strength, and corrosion-resistant; during the use of the device, it can ensure the stability and reliability of the structure, while reducing the weight of the device, making it easy to carry and install.

[0035] When using this easy-to-install bridge static displacement detector, first, fix the device to a suitable position on the bridge using the multiple fixing holes on the surface of the base 1. When installing the dial indicator 2, first move the connecting seat 11 to the appropriate position. At this time, the connecting plate 9 can be positioned by the positioning mechanism 5. The positioning rod 502, under the action of the spring 506, tightly engages with the slot 504 on the surface of the guide plate 4 to ensure the stability of the connecting plate 9. Rotate the lead screw 10 to move the connecting seat 11 to the appropriate position. The cooperation of the guide plate 16 and the guide groove 17 ensures the smooth movement of the connecting seat 11. Place the connecting block 12 on the back of the dial indicator 2 into the groove 13 of the connecting seat 11, then pass the pin 14 through the through hole of the connecting block 12, and rotate the wing nut 15 to make it... Tighten the dial indicator 2 onto pin 14 to complete its installation. Support plate 6, fixing ring 7, and buffer sleeve 8 provide support and protection for the bottom moving head of dial indicator 2, enabling it to perform normal bridge static displacement detection. Then, the bottom of the plumb bob used for bridge detection can be brought into contact with the bottom moving head of dial indicator 2. When a load is applied to the bridge, the beam deforms, the plumb bob displaces, and the moving head of dial indicator 2, which is in contact with the plumb bob, deflects, causing the dial indicator 2 reading to change. This method transmits the changes in the bridge to measure the bridge's static deflection. Throughout the entire process, the components cooperate to ensure that the installation and disassembly of dial indicator 2 are convenient and quick, while also ensuring the stability and reliability of the device, thus guaranteeing accurate detection of bridge static displacement.

[0036] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge static displacement detector that is easy to install, comprising a base (1) and a dial indicator (2), characterized in that: The base (1) has multiple fixing holes on its surface. Two partitions (3) are fixed to the top of the base (1). A guide plate (4) is provided between the two partitions (3). The bottom of the guide plate (4) is fixedly connected to the top of the base (1). A connecting plate (9) and a connecting seat (11) are slidably connected to the surface of the guide plate (4). A positioning mechanism (5) is installed on the surface of the connecting plate (9). A lead screw (10) is threaded through the surface of the connecting plate (9). The bottom of the lead screw (10) is rotatably connected to the top of the connecting seat (11). A connecting block (12) is fixed on the back of the dial indicator (2). A groove (13) is provided on the surface of the connecting seat (11) to accommodate the connecting block (12). A pin (14) slides through the surface of the connecting seat (11). A through hole is provided on the surface of the connecting block (12) to accommodate the pin (14). A support plate (6) is fixed on the top of the base (1). A fixing ring (7) is fixed on the top of the support plate (6). A buffer sleeve (8) is fixed on the inner wall of the fixing ring (7) to accommodate the bottom moving head of the dial indicator (2).

2. The bridge static displacement detector that is easy to install according to claim 1, characterized in that: The positioning mechanism (5) includes a U-shaped plate (501), which is fixed to the surface of the connecting plate (9). A positioning rod (502) slides through the surface of the U-shaped plate (501). The guide plate (4) has multiple slots (504) for inserting the positioning rod (502). One end of the positioning rod (502) is fixed with a pull plate (503).

3. A bridge static displacement detector that is easy to install according to claim 2, characterized in that: A spacer (505) is fixed to the surface of the positioning rod (502), and a spring (506) is fixed to one end of the spacer (505). One end of the spring (506) is fixedly connected to the inner wall of the U-shaped plate (501).

4. A bridge static displacement detector that is easy to install according to claim 1, characterized in that: The partition (3) is fixed with a guide plate (16), and the surfaces of the connecting plate (9) and the connecting seat (11) are provided with guide grooves (17) for use with the guide plate (16). The guide grooves (17) are slidably connected to the surface of the guide plate (16).

5. A bridge static displacement detector that is easy to install according to claim 1, characterized in that: The pin (14) has threads on its surface, and a wing nut (15) is threaded onto the pin (14).

6. A bridge static displacement detector that is easy to install according to claim 2, characterized in that: The positioning rod (502) has a semi-circular structure at one end, and the edge of the slot (504) is chamfered.

7. A bridge static displacement detector that is easy to install according to claim 1, characterized in that: The connecting plate (9), connecting seat (11) and base (1) are all made of aluminum alloy.

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