Inspection well cover tool facilitating installation of piezoelectric ceramic pieces

Abstract

The utility model relates to the field of inspection well covers, and discloses an inspection well cover tool facilitating installation of piezoelectric ceramic pieces, the inspection well cover tool comprises a cellar well base and a cellar well cover, the cellar well base and the cellar well cover are hinged, a bearing frame is fixed in the cellar well base, and an installation frame is inserted in the bearing frame; a plurality of fixing blocks and an expansion assembly for driving the fixing blocks to synchronously get close to or expand towards the circle center of the mounting frame are arranged on the top of the mounting frame in the circumferential direction, and piezoelectric ceramic pieces and limiting assemblies for limiting the piezoelectric ceramic pieces are arranged in the fixing blocks in a sliding mode; the piezoelectric ceramic piece is arranged in the fixing block in a sliding mode and limited through the limiting assembly, the piezoelectric ceramic piece can be effectively prevented from moving or falling off in the using process, when the cellar well cover is closed, the top of the piezoelectric ceramic piece abuts against the bottom of the cellar well cover all the time, additional mechanical support is provided for the piezoelectric ceramic piece, and the safety of the cellar well cover is improved. Therefore, the stability of the piezoelectric ceramic piece is enhanced.

Description

Technical Field

[0001] This application relates to the field of manhole covers, and in particular to a manhole cover fixture that facilitates the installation of piezoelectric ceramic plates. Background Technology

[0002] With the acceleration of urbanization, the construction and maintenance of urban infrastructure are receiving increasing attention. Among them, manholes, as an important part of the urban underground pipe network, are directly related to the efficiency of urban operation and the quality of life of residents. Piezoelectric ceramic sheets, as a smart material that can convert mechanical stress into electrical signals, have shown great potential in recent years in fields such as structural health monitoring and vibration energy harvesting. Applying piezoelectric ceramic sheets to manhole covers can indirectly reflect traffic information such as vehicle traffic and pedestrian density by monitoring the pressure changes on the manhole cover, providing real-time data support for urban management departments and improving the level of precision in urban management.

[0003] Existing methods for installing piezoelectric ceramic sheets on manhole covers mostly involve direct bonding. While this achieves the installation of the piezoelectric ceramic sheets, the adhesive can age due to environmental changes, thus affecting the stability of the piezoelectric ceramic sheets. To address this issue, a manhole cover fixture that facilitates the installation of piezoelectric ceramic sheets is proposed.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] To address the aforementioned issues, this application provides a manhole cover fixture that facilitates the installation of piezoelectric ceramic plates.

[0006] The manhole cover fixture for easy installation of piezoelectric ceramic plates provided in this application adopts the following technical solution:

[0007] A manhole cover fixture for easy installation of piezoelectric ceramic discs includes a manhole base and a manhole cover, which are hinged together. A support frame is fixed inside the manhole base, and an installation frame is inserted into the support frame. The top of the installation frame is provided with multiple fixing blocks and an expansion component that drives the multiple fixing blocks to move synchronously toward or expand toward the center of the installation frame. Each of the multiple fixing blocks is provided with a piezoelectric ceramic disc that slides inside, and a limiting component for limiting the position of the piezoelectric ceramic disc. When the manhole cover is closed, the top of the piezoelectric ceramic disc always abuts against the bottom of the manhole cover.

[0008] Preferably, the expansion assembly includes a sliding sleeve, a connecting shaft, a turntable, a guide rod, and a lever. The sliding sleeve is fitted onto the cross bracket and can slide on the surface of the cross bracket. The sliding sleeve is fixed to the bottom of the fixing block. The connecting shaft rotates in the middle of the cross bracket. The turntable is fixed to the bottom end of the connecting shaft. The turntable has guide grooves circumferentially arranged in a number consistent with the number of sliding sleeves. The guide rod passes through the guide groove and is fixed to the bottom of the sliding sleeve. The guide rod can slide within the guide groove. The lever is fixed to the outside of the turntable.

[0009] Preferably, the mounting bracket has multiple insertion holes circumferentially opened at the bottom, and the lever is threaded with a pin, which can pass through the lever and be threadedly connected to the insertion hole.

[0010] Preferably, the fixing block has an installation groove, the bottom of the installation groove is provided with a spring, the other end of the spring is fixed to the installation block, the top of the installation block is fixed to the piezoelectric ceramic sheet, and the installation block can slide in the installation groove.

[0011] Preferably, the limiting component includes a limiting frame and a limiting pin. The top of the limiting frame has a through hole for the piezoelectric ceramic sheet to pass through. The limiting frame is locked onto the top of the fixing block. The limiting pin passes through the limiting frame and is threaded to the side of the fixing block. The inner diameter of the through hole is smaller than the inner diameter of the mounting block. When the limiting frame abuts against the top of the fixing block, the top of the mounting block abuts against the bottom of the limiting frame.

[0012] Preferably, the top of the support frame has a slot, and the surface of the mounting frame has a locking block. The mounting frame is fixed to the support frame by the insertion and engagement of the slot and the locking block.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. By sliding a piezoelectric ceramic sheet inside a fixed block and limiting it with a limiting component, compared with related technologies, it can effectively prevent the piezoelectric ceramic sheet from shifting or falling off during use. When the manhole cover is closed, the top of the piezoelectric ceramic sheet always abuts against the bottom of the manhole cover, providing additional mechanical support for the piezoelectric ceramic sheet and thus enhancing the stability of the piezoelectric ceramic sheet installation.

[0015] 2. By setting up a support frame and a mounting frame, and providing multiple fixing blocks around the top of the mounting frame, and using an expansion component to drive the fixing blocks to move closer or expand synchronously, precise positioning and rapid installation of the piezoelectric ceramic sheet are achieved. Compared with related technologies, the expansion component ensures that multiple fixing blocks can move synchronously, allowing the piezoelectric ceramic sheet to be quickly adjusted in installation position according to actual needs, and to maintain a precise position throughout the installation process. This not only improves the accuracy of data acquisition, but also avoids data errors caused by positional deviations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the application;

[0017] Figure 2 This is a schematic diagram of the unfolded structure of the mounting bracket according to an embodiment of the application;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the mounting bracket in the embodiment of the application;

[0019] Figure 4 This is a side sectional view of the fixed block structure in an embodiment of the application.

[0020] Explanation of reference numerals in the attached drawings: 1. Manhole base; 2. Manhole cover; 3. Support bracket; 4. Slot; 5. Mounting bracket; 6. Locking block; 7. Cross bracket; 8. Sliding sleeve; 9. Connecting shaft; 10. Turntable; 11. Guide groove; 12. Guide rod; 13. Lever; 14. Pin; 15. Insertion hole; 16. Fixing block; 17. Mounting groove; 18. Spring; 19. Mounting block; 20. Piezoelectric ceramic plate; 21. Limiting bracket; 22. Through hole; 23. Limiting pin. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0022] This application discloses a manhole cover fixture that facilitates the installation of piezoelectric ceramic plates. (Refer to...) Figure 1-4 A manhole cover fixture for easy installation of piezoelectric ceramic plates includes a manhole base 1 and a manhole cover 2, which are hinged together. A support frame 3 is fixed inside the manhole base 1, and an installation frame 5 is provided inside the support frame 3. A slot 4 is provided on the top of the support frame 3, and a locking block 6 is provided on the surface of the installation frame 5. The installation frame 5 is fixed to the support frame 3 through the insertion and cooperation of the slot 4 and the locking block 6. The support frame 3 can be manually removed directly by opening the manhole cover 2, which facilitates the quick replacement and installation of the parts on the support frame 3.

[0023] Reference Figure 1-4The mounting bracket 5 has multiple fixing blocks 16 circumferentially arranged on its top and an expansion assembly that drives the multiple fixing blocks 16 to synchronously approach or expand towards the center of the mounting bracket 5. The expansion assembly includes a sliding sleeve 8, a connecting shaft 9, a turntable 10, a guide rod 12, and a lever 13. The sliding sleeve 8 is fitted onto the cross bracket 7 and can slide on the surface of the cross bracket 7. The sliding sleeve 8 is fixed to the bottom of the fixing blocks 16. The connecting shaft 9 rotates in the middle of the cross bracket 7. The turntable 10 is fixed to the bottom of the connecting shaft 9. The turntable 10 has guide grooves 11 circumferentially arranged in the same number as the sliding sleeves 8. The guide rods 12 pass through the guide grooves 11 and are fixed to the bottom of the sliding sleeves 8. The guide rods 12 can slide within the guide grooves 11. The lever 13 is fixed to the turntable. On the outside of 10, the lever 13 is turned to rotate the turntable 10. Under the guidance of the guide groove 11, the guide rod 12 and the sliding sleeve 8 slide along the surface of the cross bracket 7, thereby realizing that multiple fixing blocks 16 move synchronously toward or expand toward the center of the mounting frame 5. This ensures that multiple fixing blocks 16 can move synchronously, so that the piezoelectric ceramic sheet 20 can be quickly adjusted to the installation position according to actual needs, and maintains a precise position throughout the installation process. This not only improves the accuracy of data acquisition, but also avoids data errors caused by position deviation. At the same time, as the position of the fixing blocks 16 is adjusted, different positions at the bottom of the manhole cover 2 can be covered, further improving the comprehensiveness of information acquisition.

[0024] Reference Figure 1-4 The fixing block 16 has a mounting groove 17, and a spring 18 is provided at the bottom of the mounting groove 17. The other end of the spring 18 is fixed to the mounting block 19, and a piezoelectric ceramic sheet 20 is fixed to the top of the mounting block 19. The mounting block 19 can slide in the mounting groove 17. The fixing block 16 is provided with a limiting component for limiting the piezoelectric ceramic sheet 20. The limiting component includes a limiting frame 21 and a limiting pin 23. The top of the limiting frame 21 has a through hole 22 for the piezoelectric ceramic sheet 20 to pass through. The limiting frame 21 is locked onto the top of the fixing block 16. The limiting pin 23 passes through the limiting frame 21 and is threaded to the side of the fixing block 16. The inner diameter of the through hole 22 is smaller than the inner diameter of the mounting block 19. When the limiting frame 21 abuts against the top of the fixing block 16, the top of the mounting block 19 is in contact with the limiting frame 21. With the bottoms abutting, the piezoelectric ceramic sheet 20 can be welded and fixed to the mounting block 19. The piezoelectric ceramic sheet 20 and the mounting block 19 are placed in the mounting groove 17. The spring 18 can be fixed to the mounting groove 17 or placed directly in the mounting groove 17. The limiting bracket 21 is clamped on the top of the fixing block 16, so that the piezoelectric ceramic sheet 20 passes through the through hole 22. The mounting block 19 is pressed down to retract the spring 18, and the limiting pin 23 is tightened to realize the quick installation of the piezoelectric ceramic sheet 20 and effectively prevent the piezoelectric ceramic sheet 20 from shifting or falling off during use. When the manhole cover 2 is closed, the top of the piezoelectric ceramic sheet 20 always abuts against the bottom of the manhole cover 2, providing additional mechanical support for the piezoelectric ceramic sheet 20 and thus enhancing the stability of the piezoelectric ceramic sheet 20.

[0025] It should be noted that when installing or adjusting the position of the piezoelectric ceramic sheet 20, simply open the manhole cover 2 and remove the support bracket 3.

[0026] Reference Figure 3 The mounting bracket 5 has multiple insertion holes 15 circumferentially opened at the bottom. The lever 13 is threaded with a pin 14. The pin 14 can pass through the lever 13 and be threaded to the insertion hole 15. After adjusting the position of the fixing block 16 and the piezoelectric ceramic sheet 20 on it by moving the lever 13, the pin 14 is screwed to be threaded to the insertion hole 15, which further ensures the stable installation of the piezoelectric ceramic sheet 20.

[0027] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0028] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A manhole cover fixture for easy installation of piezoelectric ceramic plates, comprising a manhole base (1) and a manhole cover (2), characterized in that: The well base (1) and the well cover (2) are hinged together. A support frame (3) is fixed inside the well base (1). An installation frame (5) is inserted into the support frame (3). The top of the installation frame (5) is provided with multiple fixing blocks (16) and an expansion component that drives the multiple fixing blocks (16) to move synchronously toward or expand toward the center of the installation frame (5). Each of the multiple fixing blocks (16) is provided with a piezoelectric ceramic sheet (20) that slides inside and a limiting component for limiting the piezoelectric ceramic sheet (20). When the well cover (2) is closed, the top of the piezoelectric ceramic sheet (20) is always against the bottom of the well cover (2).

2. The manhole cover fixture for easy installation of piezoelectric ceramic plates according to claim 1, characterized in that: The expansion assembly includes a sliding sleeve (8), a connecting shaft (9), a turntable (10), a guide rod (12), and a lever (13). The sliding sleeve (8) is fitted on the cross bracket (7) and can slide on the surface of the cross bracket (7). The sliding sleeve (8) is fixed to the bottom of the fixing block (16). The connecting shaft (9) rotates in the middle of the cross bracket (7). The turntable (10) is fixed to the bottom of the connecting shaft (9). The turntable (10) has guide grooves (11) in the same number as the sliding sleeve (8) in the circumferential direction. The guide rod (12) passes through the guide groove (11) and is fixed to the bottom of the sliding sleeve (8). The guide rod (12) can slide in the guide groove (11). The lever (13) is fixed to the outside of the turntable (10).

3. The manhole cover fixture for easy installation of piezoelectric ceramic plates according to claim 2, characterized in that: The mounting bracket (5) has multiple insertion holes (15) circumferentially opened at the bottom. The lever (13) is threaded with a pin (14). The pin (14) can pass through the lever (13) and be threadedly connected to the insertion hole (15).

4. The manhole cover fixture for easy installation of piezoelectric ceramic plates according to claim 1, characterized in that: The fixing block (16) has an installation groove (17) inside. The bottom of the installation groove (17) is provided with a spring (18). The other end of the spring (18) is fixed with an installation block (19). The top of the installation block (19) is fixed with a piezoelectric ceramic sheet (20). The installation block (19) can slide in the installation groove (17).

5. The manhole cover fixture for easy installation of piezoelectric ceramic plates according to claim 4, characterized in that: The limiting component includes a limiting frame (21) and a limiting pin (23). The limiting frame (21) has a through hole (22) at the top for the piezoelectric ceramic sheet (20) to pass through. The limiting frame (21) is locked on the top of the fixing block (16). The limiting pin (23) passes through the limiting frame (21) and is threaded to the side of the fixing block (16). The inner diameter of the through hole (22) is smaller than the inner diameter of the mounting block (19). When the limiting frame (21) abuts against the top of the fixing block (16), the top of the mounting block (19) abuts against the bottom of the limiting frame (21).

6. The manhole cover fixture for easy installation of piezoelectric ceramic plates according to claim 1, characterized in that: The support frame (3) has a slot (4) on its top, and the mounting frame (5) has a block (6) on its surface. The mounting frame (5) is fixed to the support frame (3) by the insertion and engagement of the slot (4) and the block (6).

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