A smart piezoelectric sensor that prevents detachment

Abstract

This utility model discloses an anti-detachment intelligent piezoelectric sensor, relating to the field of piezoelectric sensor technology. It includes a housing, a circuit board, a support base, a piezoelectric element, and a mass block. A housing cover is fixed to the top of the housing with screws, and a pressure rod is fixed at equal angles to the lower surface of the housing cover. A first shield is disposed below the pressure rod. The circuit board is engaged at the top of the second shield, and the support base is engaged at the bottom of the second shield. The piezoelectric element is sleeved on the outer side of the support base, and an insulating sheet is disposed below the piezoelectric element. A mounting plate is connected to the bottom of the housing, and screw holes are formed at equal angles on the outer end of the mounting plate. A cable conduit is fixed to the outer end of the housing. The circuit board is connected to the piezoelectric element via wires. This anti-detachment intelligent piezoelectric sensor facilitates the disassembly and assembly of the circuit board and piezoelectric element. During use, the intelligent piezoelectric sensor is fixed by the mounting plate and screws to prevent it from falling off.

Description

Technical Field

[0001] This utility model relates to the field of piezoelectric sensor technology, specifically to an intelligent piezoelectric sensor that is resistant to falling off. Background Technology

[0002] Piezoelectric sensors are used to measure the vibration of objects and are also known as piezoelectric accelerometers. A microprocessor is set inside the piezoelectric sensor, which can intelligently analyze data to improve detection accuracy. During use, it is generally fixed by screws or adhesive to prevent it from falling off.

[0003] Chinese utility model patent CN210922828U discloses a piezoelectric sensor and a shielding assembly with a receiving space. A barrier plate is provided circumferentially at a predetermined height position on the inner surface of the shielding assembly along its height direction. A circuit board is snapped onto the barrier plate, which separates the circuit board from a mass block, preventing the mass block and circuit board from being fixed together and affecting the measurement accuracy of the piezoelectric sensor. This improves the measurement accuracy and stability of the piezoelectric sensor and results in a compact structure. A charge output element includes a support base, a piezoelectric element, and a mass block. The support base has a connector extending along its height direction, with the piezoelectric element and mass block sleeved on the outside of the connector. The piezoelectric element and circuit board are electrically connected. The shielding assembly is fastened to the support base and accommodates the connector, piezoelectric element, and mass block within the receiving space.

[0004] Based on existing solutions and actual production and processing applications, the existing anti-drop intelligent piezoelectric sensors are inconvenient for disassembling and repairing circuit boards, support bases, piezoelectric elements, and mass blocks. Therefore, we propose an anti-drop intelligent piezoelectric sensor to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide an anti-detachment intelligent piezoelectric sensor to solve the problem mentioned in the background art that existing anti-detachment intelligent piezoelectric sensors are inconvenient to disassemble and repair circuit boards, support bases, piezoelectric elements and mass blocks.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-detachment intelligent piezoelectric sensor, comprising a housing, a circuit board, a support base, a piezoelectric element, and a mass block.

[0007] The top of the housing is fixed with a cover by screws, and a pressure rod is fixed at an equal angle on the lower surface of the cover. A first shield is provided below the pressure rod, and a second shield is provided below the first shield. A circuit board is snapped into the top of the second shield, and a support base is snapped into the bottom of the second shield. A piezoelectric element is sleeved on the outside of the support base, and a mass block is sleeved on the outside of the piezoelectric element. An insulating sheet is provided below the piezoelectric element.

[0008] A mounting plate is connected to the bottom of the housing, and screw holes are opened at equal angles on the outer end of the mounting plate. A cable tube is fixed to the outer end of the housing.

[0009] The above technical solution facilitates the disassembly and assembly of the circuit board and piezoelectric components. During use, the intelligent piezoelectric sensor is fixed with a mounting plate and screws to prevent it from falling off.

[0010] Preferably, the lower surface of the pressure rod is in contact with the upper surface of the first shield, and the lower surface of the first shield is in contact with the upper surface of the second shield. The pressure rod can hold the first shield and the second shield in place, thereby defining the first shield and the second shield.

[0011] Preferably, the circuit board is connected to the piezoelectric element via wires, and the circuit board is used to transmit detection data.

[0012] Preferably, the insulating sheet is installed at the bottom of the inner part of the housing to protect the piezoelectric element.

[0013] Preferably, the top and bottom of the housing are provided with screw holes, and the mounting plate is fixedly connected to the housing by screws, which facilitates the assembly and disassembly of the mounting plate and the housing.

[0014] Preferably, the diameter of the mounting plate is larger than the diameter of the housing, so that the screw holes at the outer end of the mounting plate can be exposed.

[0015] Preferably, the right end of the second shield has a wire hole that communicates with the cable conduit, so as to facilitate the connection of the wire to external components.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the anti-fall-off intelligent piezoelectric sensor facilitates the disassembly and assembly of the circuit board and piezoelectric element. During use, the intelligent piezoelectric sensor is fixed by the mounting plate and screws to prevent it from falling off.

[0017] 1. After fixing the cover to the top of the housing with screws, press the first shield, the second shield, the support base and the insulating sheet with the pressure rod to facilitate the disassembly and assembly of the circuit board and piezoelectric components. When maintenance is required, simply remove the screws from the cover and the housing to quickly remove the circuit board and piezoelectric components.

[0018] 2. The first shield, the second shield, and the insulating sheet are used to prevent the mass block and the circuit board from being fixed together, which would affect the measurement accuracy of the piezoelectric sensor. The circuit board is equipped with a microprocessor that can intelligently analyze the data.

[0019] 3. The diameter of the mounting plate is larger than that of the housing. The mounting plate and the housing are combined into a "T" shaped structure. Two sets of screw holes are opened at the inner and outer ends of the mounting plate, which are used to connect the housing to external components. During use, the intelligent piezoelectric sensor is fixed by the mounting plate and screws to prevent it from falling off. Attached Figure Description

[0020] Figure 1 This is a frontal view of the axial side structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the axial section structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the disassembled structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the axial structure of this utility model viewed from below;

[0024] Figure 5 This is a schematic diagram of the connection structure between the pressure rod and the shell cover of this utility model.

[0025] In the diagram: 1. Housing; 2. Housing cover; 3. Pressure rod; 4. First shield; 5. Second shield; 6. Circuit board; 7. Support base; 8. Piezoelectric element; 9. Mass block; 10. Insulating sheet; 11. Mounting plate; 12. Cable conduit. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 The existing anti-drop intelligent piezoelectric sensor is inconvenient to disassemble and repair the circuit board 6, support base 7, piezoelectric element 8 and mass block 9. In order to solve this technical problem, this embodiment discloses the following technical contents;

[0028] A smart piezoelectric sensor designed to prevent detachment includes a housing 1, a cover 2, a pressure rod 3, a first shield 4, a second shield 5, a circuit board 6, a support base 7, a piezoelectric element 8, a mass block 9, an insulating sheet 10, a mounting plate 11, and a cable conduit 12.

[0029] like Figure 2 and Figure 3 As shown, the top of the housing 1 is fixed with a cover 2 by screws, and a pressure rod 3 is fixed at an equal angle on the lower surface of the cover 2. A first shield 4 is provided below the pressure rod 3, and a second shield 5 is provided below the first shield 4. A circuit board 6 is snapped into the top of the second shield 5, and a support base 7 is snapped into the bottom of the second shield 5. A piezoelectric element 8 is sleeved on the outside of the support base 7, and a mass block 9 is sleeved on the outside of the piezoelectric element 8. An insulating sheet 10 is provided below the piezoelectric element 8. The lower surface of the pressure rod 3 is in contact with the upper surface of the first shield 4, and the lower surface of the first shield 4 is in contact with the upper surface of the second shield 5. The insulating sheet 10 is installed at the bottom inside the housing 1.

[0030] When it is necessary to remove the circuit board 6, support base 7, piezoelectric element 8 and mass block 9, remove the screws used to connect the housing 1 and the cover 2, then lift the cover 2 upwards so that the pressure rod 3 leaves the first shield 4. Then lift the first shield 4, circuit board 6, second shield 5, support base 7, piezoelectric element 8 and mass block 9 upwards in sequence. The circuit board 6, piezoelectric element 8 and mass block 9 can then be removed from the inside of the housing 1. The wires used to connect the components are relatively long, which allows the circuit board 6 and piezoelectric element 8 to be moved.

[0031] like Figures 1-3 As shown, screw holes are provided at both the top and bottom of the housing 1. The mounting plate 11 is fixedly connected to the housing 1 by screws. Screw holes are provided at equal angles on the outer end of the mounting plate 11. The diameter of the mounting plate 11 is larger than that of the housing 1. During use, the mounting plate 11 is fixed to other components by the screw holes and screws on the mounting plate 11 that are not connected to the housing 1, so as to ensure stable use and prevent the intelligent piezoelectric sensor from falling off.

[0032] A microprocessor (not shown in the figure) is set on the circuit board 6 to amplify, filter, convert analog to digital and perform intelligent analysis on the original signal. The intelligent analysis data is performed. A cable tube 12 is fixed to the outer end of the housing 1. A wire hole connected to the cable tube 12 is opened at the right end of the second shield 5. The wire passes through the cable tube 12 and connects to the external device. Heat dissipation fins are fixed at equal angles on the outer end of the housing 1 to effectively conduct heat.

[0033] The above completes a series of operations for the anti-detachment intelligent piezoelectric sensor. Any content not described in detail in this specification is prior art known to those skilled in the art.

[0034] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A smart piezoelectric sensor with anti-drop capability, comprising a housing (1), a circuit board (6), a support base (7), a piezoelectric element (8), and a mass block (9), characterized in that: The top of the housing (1) is fixed with a cover (2) by screws, and a pressure rod (3) is fixed at an equal angle on the lower surface of the cover (2). A first shield (4) is provided below the pressure rod (3), and a second shield (5) is provided below the first shield (4). A circuit board (6) is snapped onto the top of the second shield (5), and a support base (7) is snapped onto the bottom of the second shield (5). A piezoelectric element (8) is sleeved on the outside of the support base (7), and a mass block (9) is sleeved on the outside of the piezoelectric element (8). An insulating sheet (10) is provided below the piezoelectric element (8). A mounting plate (11) is connected to the bottom of the housing (1), and screw holes are opened at equal angles on the outer end of the mounting plate (11). A cable tube (12) is fixed to the outer end of the housing (1).

2. The anti-detachment intelligent piezoelectric sensor according to claim 1, characterized in that: The lower surface of the pressure bar (3) is in contact with the upper surface of the first shield (4), and the lower surface of the first shield (4) is in contact with the upper surface of the second shield (5).

3. The anti-detachment intelligent piezoelectric sensor according to claim 1, characterized in that: The circuit board (6) is connected to the piezoelectric element (8) via wires.

4. The anti-detachment intelligent piezoelectric sensor according to claim 1, characterized in that: The insulating sheet (10) is installed at the bottom inside the housing (1).

5. The anti-detachment intelligent piezoelectric sensor according to claim 1, characterized in that: The top and bottom of the housing (1) are provided with screw holes, and the mounting plate (11) is fixedly connected to the housing (1) by screws.

6. The anti-detachment intelligent piezoelectric sensor according to claim 1, characterized in that: The diameter of the mounting plate (11) is larger than the diameter of the housing (1).

7. The anti-detachment intelligent piezoelectric sensor according to claim 1, characterized in that: The right end of the second shield (5) has a wire hole that communicates with the cable conduit (12).

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