A buried joint meter for geotechnical engineering

Abstract

The utility model discloses a kind of embedded joint meter for geotechnical engineering, it belongs to joint meter equipment technical field, including joint meter main part and support sleeve rod, one end of the joint meter main part is fixedly connected with fixed end, the other end of the joint meter main part is fixedly connected with adjusting end, the opposite side of fixed end and adjusting end is all fixedly connected with inserting rod, the surface of two inserting rods is all sleeved with sleeve, the surface of two inserting rods is all provided with fixed component, one end of the support sleeve rod is fixedly connected with mounting frame, the inside of the support sleeve rod is provided with adjusting component.The utility model is through being provided with fixed component, the quick insertion and reliable locking between joint meter main part and mounting support structure are realized, installation process is simplified, the reliability of equipment is improved, by setting adjusting component, so that joint meter has flexible length adjusting ability when installing, improve the success rate of installation, also enhance the adaptability of joint meter to different projects.

Description

Technical Field

[0001] This utility model relates to the field of joint measuring equipment technology, and in particular to an embedded joint measuring instrument for geotechnical engineering. Background Technology

[0002] In the field of geotechnical engineering safety monitoring, embedded joint gauges are key equipment for accurately measuring the opening and closing changes of joints in concrete structures or soil and rock masses.

[0003] Traditional equipment often uses bolts or welding to fix the main body and external installation support structure. The installation process is cumbersome, and the length is usually fixed, lacking effective on-site adjustment capabilities. If the actual structural joint spacing deviates from the design, it is difficult to adapt and has poor adaptability. In order to solve the above problems, this utility model provides an embedded joint gauge for geotechnical engineering. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an embedded joint gauge for geotechnical engineering.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An embedded joint gauge for geotechnical engineering includes a joint gauge body and a support sleeve. One end of the joint gauge body is fixedly connected to a fixed end, and the other end of the joint gauge body is fixedly connected to an adjusting end. Insert rods are fixedly connected to opposite sides of the fixed end and the adjusting end. Sleeves are fitted onto the surfaces of the two insert rods, and fixing components are provided on the surfaces of the two insert rods. One end of the support sleeve is fixedly connected to a mounting frame, and one of the sleeves is connected to the mounting frame. An adjusting component is provided inside the support sleeve.

[0006] As a further improvement of this utility model, the fixing component includes mounting grooves on both sides of the surface of the plug rod, and a return spring is fixedly connected inside each of the two mounting grooves. Circular slots are provided on both sides inside the sleeve, and spherical blocks that are adapted to the circular slots are fixedly connected to opposite ends of the two return springs.

[0007] As a further improvement of this utility model, a first hollow rod is fixedly connected to the bottom end of the mounting groove, a first limiting rod is slidably connected inside the first hollow rod, and the other end of the first limiting rod is fixedly connected to the spherical locking block.

[0008] As a further improvement of this utility model, the adjusting assembly includes an adjusting screw rotatably connected inside the support sleeve rod via a bearing, a knob is provided inside the mounting frame, the adjusting screw is connected to the knob, a movable rod is threaded onto the surface of the adjusting screw, the movable rod is slidably connected inside the support sleeve rod, and a connecting end is fixedly connected to the other end of the movable rod.

[0009] As a further improvement of this utility model, a second hollow rod is fixedly connected to both sides of the support sleeve rod, and a second limiting rod adapted to the second hollow rod is fixedly connected to both sides of the connecting end.

[0010] As a further improvement of this utility model, a sealed outer shell is fixedly installed on the surface of the main body of the gap measuring instrument, and a transmission line is fixedly installed on the surface of the fixed end.

[0011] As a further improvement of this utility model, damping bearings are fixedly connected to the opposite sides of the fixed end and the connecting end, and L-shaped mounting plates are rotatably connected inside the two damping bearings.

[0012] As a further improvement of this utility model, the lower ends of both L-shaped mounting plates are provided with through holes, and mounting bolts are inserted into the through holes.

[0013] The beneficial effects of this utility model are: By setting up a fixing assembly consisting of a plug rod, sleeve, spherical locking block, and return spring, a quick plug-in and reliable locking mechanism is achieved between the main body of the joint gauge and the installation support structure. This simplifies the installation process, allowing the connection of the main body to be completed without the need for complex tools, saving installation time and labor costs. At the same time, the spherical locking block, under the action of the return spring, engages with the circular slot. Combined with the constraint of the locking block's movement by the first limit rod and the first hollow rod, this ensures that the connection has excellent anti-loosening ability and mechanical stability under long-term vibration and complex soil and rock environments. This effectively avoids monitoring data interruption due to connection failure and improves the reliability of the equipment.

[0014] By incorporating an adjustment assembly consisting of an adjusting screw, a movable rod, and a knob, the joint gauge possesses flexible length adjustment capabilities during installation. Rotating the knob drives the movable rod to extend and retract linearly within the support sleeve, thereby precisely adjusting the overall length of the joint gauge to accommodate construction errors in the actual spacing of structural joints or the needs of different application scenarios. The adjustment process is smooth and controllable. Simultaneously, the cooperation between the second limit rod and the second hollow rod effectively prevents the movable rod from rotating during movement, ensuring the accuracy of the adjustment, reducing the requirements for the pre-embedded precision of the installation base, improving the success rate of installation, and enhancing the adaptability of the joint gauge to different projects.

[0015] By setting up L-shaped mounting plates, during use, the L-shaped mounting plates at both ends of the device are connected to the fixed end and the connecting end through damping bearings, giving the L-shaped mounting plates a certain degree of angle self-adjustment capability. Even when the mounting base is not very flat, the L-shaped mounting plates can fully fit the base surface through the slight rotation of the damping bearings, thereby ensuring the stability of the installation and the uniformity of the force. The rotational resistance provided by the damping bearings can not only facilitate installation and positioning, but also prevent unnecessary loosening caused by easy rotation after installation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embedded joint gauge for geotechnical engineering proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the fixing component of an embedded joint gauge for geotechnical engineering proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the adjustment component of an embedded joint gauge for geotechnical engineering proposed in this utility model.

[0019] In the diagram: 1. Main body of the gap measuring instrument; 2. Support sleeve; 3. Fixed end; 4. Adjusting end; 5. Sleeve; 6. Insert rod; 7. Mounting frame; 8. Mounting groove; 9. Return spring; 10. Circular slot; 11. Spherical block; 12. First hollow rod; 13. First limiting rod; 14. Adjusting screw; 15. Knob; 16. Movable rod; 17. Connecting end; 18. Second hollow rod; 19. Second limiting rod; 20. Sealed outer shell; 21. Damping bearing; 22. L-shaped mounting plate; 23. Mounting bolt; 24. Transmission line. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-3 An embedded joint gauge for geotechnical engineering includes a joint gauge body 1 and a support sleeve 2. One end of the joint gauge body 1 is fixedly connected to a fixed end 3, and the other end of the joint gauge body 1 is fixedly connected to an adjusting end 4. Insert rods 6 are fixedly connected to opposite sides of the fixed end 3 and the adjusting end 4. Sleeves 5 are sleeved on the surfaces of the two insert rods 6. Fixing components are provided on the surfaces of the two insert rods 6. One end of the support sleeve 2 is fixedly connected to an installation frame 7, and one of the sleeves 5 is connected to the installation frame 7. An adjusting component is provided inside the support sleeve 2.

[0022] In this utility model, the fixing component includes mounting grooves 8 on both sides of the surface of the insertion rod 6. A return spring 9 is fixedly connected inside each of the two mounting grooves 8. A circular slot 10 is provided on both sides inside the sleeve 5. A spherical locking block 11 that matches the circular slot 10 is fixedly connected to the opposite end of each of the two return springs 9. The spherical locking block 11 automatically extends and retracts through the elastic force of the return spring 9. When the insertion rod 6 is inserted into the sleeve 5, the spherical locking block 11 is squeezed and compressed into the mounting groove 8 for easy insertion. After being inserted into place, the spherical locking block 11 is locked into the circular slot 10 under the action of the return spring 9, quickly completing the positioning and fixing of the insertion rod 6 and the sleeve 5 without the need for additional fixing tools, thus improving the convenience of connection.

[0023] A first hollow rod 12 is fixedly connected to the bottom of the mounting groove 8. A first limiting rod 13 is slidably connected inside the first hollow rod 12. The other end of the first limiting rod 13 is fixedly connected to the spherical locking block 11. The first hollow rod 12 and the first limiting rod 13 form a sliding limiting cooperation, which can accurately constrain the extension and retraction trajectory of the spherical locking block 11, prevent the spherical locking block 11 from shifting or falling off under the action of the return spring 9, and ensure that the spherical locking block 11 can always be accurately aligned with the circular locking groove 10.

[0024] The adjustment assembly includes an adjusting screw 14 rotatably connected to the support sleeve 2 via a bearing. A knob 15 is provided inside the mounting frame 7. The adjusting screw 14 and the knob 15 are connected. A movable rod 16 is threaded onto the surface of the adjusting screw 14. The movable rod 16 is slidably connected to the support sleeve 2. The other end of the movable rod 16 is fixedly connected to a connecting end 17. The knob 15 provides a convenient manual operation component for the adjusting screw 14. The bearing connection reduces the frictional resistance when the adjusting screw 14 rotates, making the rotation smoother. The threaded connection between the adjusting screw 14 and the movable rod 16 converts the rotational motion into linear motion, enabling the movable rod 16 to move smoothly within the support sleeve 2. Then, the connecting end 17 drives the relevant components to adjust the spacing to adapt to different installation requirements.

[0025] Both sides of the support sleeve rod 2 are fixedly connected with second hollow rods 18, and both sides of the connecting end 17 are fixedly connected with second limiting rods 19 that are adapted to the second hollow rods 18. The sliding cooperation between the second hollow rods 18 and the second limiting rods 19 can form a two-way limit on the linear movement of the movable rod 16, preventing the movable rod 16 from shifting left or right or rotating during the movement, ensuring the stability of the movable rod 16 when it drives the connecting end 17 to move, and thus ensuring the accuracy of the overall length adjustment of the joint gauge.

[0026] A sealed outer shell 20 is fixedly installed on the surface of the main body 1 of the joint gauge, and a transmission line 24 is fixedly installed on the surface of the fixed end 3. The sealed outer shell 20 can effectively protect the core sensing element inside the main body 1 of the joint gauge, isolate impurities such as water and mud in the geotechnical engineering environment, and avoid damage to the element. The transmission line 24 serves as a signal transmission carrier, which can stably transmit the monitoring signal generated by the main body 1 of the joint gauge to the external receiving device, ensuring the real-time and continuous nature of the monitoring data.

[0027] Damping bearings 21 are fixedly connected to the opposite sides of the fixed end 3 and the connecting end 17. L-shaped mounting plates 22 are rotatably connected inside the two damping bearings 21. The lower ends of the two L-shaped mounting plates 22 are provided with through holes, and mounting bolts 23 are inserted into the through holes. The damping bearings 21 allow the L-shaped mounting plates 22 to be angled relative to the fixed end 3 and the connecting end 17, which can be adapted to mounting surfaces with different flatness and improve the fit of the device installation. The L-shaped mounting plates 22 are firmly connected to the structure to be monitored by the mounting bolts 23. The through hole design facilitates the insertion and fixing of the mounting bolts 23.

[0028] In use, the two L-shaped mounting plates 22 are initially fixed to both sides of the joint to be monitored using mounting bolts 23. The angle of the L-shaped mounting plates 22 can be finely adjusted using damping bearings 21 to adapt to the mounting surface. Then, the knob 15 is rotated, which drives the adjusting screw 14 to rotate within the support sleeve 2. The movable rod 16, which is threaded to the adjusting screw 14, moves linearly accordingly. The movable rod 16 pushes or pulls the joint gauge body 1 through the connecting end 17, thereby adjusting the distance between the fixed end 3 and the connecting end 17, that is, adjusting the overall length of the joint gauge to match the distance between the initially fixed L-shaped mounting plates 22. Under the sliding cooperation of the second limiting rod 19 and the second hollow rod 18, the movement of the movable rod 16 is restricted to linear movement to ensure smooth adjustment.

[0029] After the length is adjusted appropriately, the two insert rods 6 are inserted into the corresponding sleeves 5 respectively. During the insertion process, the spherical locking block 11 on the surface of the insert rod 6 is pressed into the mounting groove 8 by the inner wall of the sleeve 5 and compresses the return spring 9. When the insert rod 6 is inserted in place and the spherical locking block 11 is aligned with the circular locking groove 10, the restoring force of the return spring 9 pushes the spherical locking block 11 into the circular locking groove 10 to complete the locking and fixing. During this process, the first limiting rod 13 slides in the first hollow rod 12 to prevent the spherical locking block 11 from coming out of the mounting groove 8. At this point, the joint gauge is installed. When the structural joint changes from opening to closing, the change will be transmitted to the fixed end 3 and the connecting end 17 through the L-shaped mounting plate 22 and the damping bearing 21, thereby causing the joint gauge body 1 to produce corresponding deformation or displacement. The internal vibrating wire sensing element converts this mechanical quantity into a frequency signal output to achieve long-term monitoring.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An embedded joint gauge for geotechnical engineering, comprising a joint gauge body (1) and a support sleeve (2), characterized in that, One end of the main body (1) of the gap meter is fixedly connected to a fixed end (3), and the other end of the main body (1) of the gap meter is fixedly connected to an adjusting end (4). The fixed end (3) and the adjusting end (4) are both fixedly connected to insert rods (6). The surfaces of the two insert rods (6) are fitted with sleeves (5). The surfaces of the two insert rods (6) are provided with fixing components. One end of the support sleeve (2) is fixedly connected to an installation frame (7). One of the sleeves (5) is connected to the installation frame (7). The inside of the support sleeve (2) is provided with an adjusting component.

2. The embedded joint gauge for geotechnical engineering according to claim 1, characterized in that, The fixing component includes mounting slots (8) on both sides of the surface of the insert (6), and a return spring (9) is fixedly connected inside each of the two mounting slots (8). Circular slots (10) are provided on both sides inside the sleeve (5). A spherical block (11) that matches the circular slot (10) is fixedly connected to the opposite end of each of the two return springs (9).

3. The embedded joint gauge for geotechnical engineering according to claim 2, characterized in that, The bottom of the mounting groove (8) is fixedly connected to a first hollow rod (12), and a first limiting rod (13) is slidably connected inside the first hollow rod (12). The other end of the first limiting rod (13) is fixedly connected to a spherical block (11).

4. The embedded joint gauge for geotechnical engineering according to claim 1, characterized in that, The adjustment assembly includes an adjustment screw (14) rotatably connected to the support sleeve (2) via a bearing. A knob (15) is provided inside the mounting frame (7). The adjustment screw (14) and the knob (15) are connected. A movable rod (16) is threaded onto the surface of the adjustment screw (14). The movable rod (16) is slidably connected to the support sleeve (2). The other end of the movable rod (16) is fixedly connected to a connecting end (17).

5. The embedded joint gauge for geotechnical engineering according to claim 4, characterized in that, The support sleeve (2) is fixedly connected to two sides with a second hollow rod (18), and the connection end (17) is fixedly connected to two sides with a second limiting rod (19) that is adapted to the second hollow rod (18).

6. The embedded joint gauge for geotechnical engineering according to claim 1, characterized in that, A sealed outer shell (20) is fixedly installed on the surface of the main body (1) of the gap meter, and a transmission line (24) is fixedly installed on the surface of the fixed end (3).

7. The embedded joint gauge for geotechnical engineering according to claim 4, characterized in that, Damping bearings (21) are fixedly connected to the opposite sides of the fixed end (3) and the connecting end (17), and L-shaped mounting plates (22) are rotatably connected inside the two damping bearings (21).

8. The embedded joint gauge for geotechnical engineering according to claim 7, characterized in that, Both L-shaped mounting plates (22) have through holes at their lower ends, and mounting bolts (23) are inserted into the through holes.

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