A zero point detection device for a pre-warning accelerometer

Abstract

The utility model discloses a zero point detection device for early warning accelerometer, including casing, special interface, heat abstractor, control acquisition module and adjustable voltage stabilizing circuit. This zero point detection device for early warning accelerometer utilizes special interface to butt joint accelerometer, and control acquisition module gathers the input voltage of special interface, namely the output voltage of accelerometer, thereby gathers the zero point voltage value of three partial directions of accelerometer, and control acquisition module displays the zero point voltage value of corresponding partial direction through UD display screen, NS display screen and EW display screen, facilitates the real -time data observation of detection personnel, and helps the monitoring personnel to calibrate accelerometer, utilizes casing, control acquisition module, adjustable voltage stabilizing circuit and telescopic handle and constitutes a relatively small structure, and improves the portability of detection device.

Description

Technical Field

[0001] This utility model relates to a detection device, and more particularly to a zero-point detection device for an early warning accelerometer. Background Technology

[0002] An earthquake early warning accelerometer (hereinafter referred to as an accelerometer) is an instrument used to detect and record earthquake vibrations. It measures the acceleration of an object caused by an earthquake and converts this acceleration value into an electrical signal related to the vibration for recording. Accelerometers help researchers understand the process and nature of earthquakes, thus better enabling earthquake early warning. Therefore, accelerometers are crucial for earthquake detection and require regular testing and calibration; however, current technology typically involves powering the accelerometer and directly measuring its output voltage with a multimeter, which is extremely inconvenient. Furthermore, existing devices for testing accelerometers are often difficult to carry. Utility Model Content

[0003] Purpose of the utility model: To provide a zero-point detection device for an accelerometer, which can assist technicians in zeroing the accelerometer.

[0004] Technical solution: The zero-point detection device for early warning accelerometers provided by this utility model includes a housing, a dedicated interface, a heat dissipation mechanism, a control and acquisition module, and an adjustable voltage regulator circuit;

[0005] A dedicated interface is used to connect the accelerometer; a T-shaped perforated plate is installed inside the housing; the control and acquisition module is mounted on the T-shaped perforated plate; a heat dissipation mechanism is installed inside the housing for air cooling; four displays are mounted on the housing; the input terminal of the adjustable voltage regulator circuit is electrically connected to the power plug for connecting to mains power, and the output terminal is electrically connected to the output terminal of the dedicated interface for power supply; a voltage adjustment knob is installed on the housing for adjusting the output voltage of the adjustable voltage regulator circuit; a main switch connected in series with the power plug is installed on the housing; the control and acquisition module is used to acquire the input voltage of the dedicated interface and the output voltage of the adjustable voltage regulator circuit, and the heat dissipation mechanism and the four displays are all controlled by the control and acquisition module; a telescopic handle is installed on the top of the housing.

[0006] Furthermore, the housing includes two panels and two U-shaped plates; the openings of the two U-shaped plates are joined together to form a cylindrical structure; the two panels are used to close the two ends of the cylindrical structure respectively; the pressure regulating knob and four displays are all located on the front panel.

[0007] Furthermore, the control acquisition module includes a controller, a first voltage acquisition circuit, a second voltage acquisition circuit, a third voltage acquisition circuit, and a fourth voltage acquisition circuit; the output terminals of the first voltage acquisition circuit, the second voltage acquisition circuit, and the third voltage acquisition circuit are all electrically connected to the controller, and their input terminals are electrically connected to the respective input terminals of the dedicated interface through the first voltage amplification circuit, the second voltage amplification circuit, and the third voltage amplification circuit, respectively; the input terminal of the fourth voltage acquisition circuit is electrically connected to the output terminal of the adjustable voltage regulator circuit, and its output terminal is electrically connected to the controller.

[0008] Furthermore, the heat dissipation mechanism includes a temperature sensor and a cooling fan; the temperature sensor is installed inside the housing and is electrically connected to the controller; the cooling fan is installed through the rear wall of the housing and is electrically connected to the controller through a fan drive circuit; several heat dissipation holes are provided on the upper side of the housing.

[0009] Furthermore, it also includes a storage structure; the storage structure includes an interface locking structure and a plug locking structure; two storage slots are provided on the housing; the walls of the two storage slots are respectively provided with an interface insertion slot for inserting a dedicated interface and a plug insertion slot for inserting a power plug; the interface locking structure and the plug locking structure are respectively installed in the interface insertion slot and the plug insertion slot, and are used to lock the dedicated interface and the power plug respectively; a winding post is fixed on the bottom of each of the two storage slots; the cables of the dedicated interface and the power plug are respectively wound on the corresponding winding posts.

[0010] Furthermore, the interface locking structure includes a locking block, an interface friction block, and an interface locking spring; an interface locking groove is provided on the groove wall of the interface insertion slot; the locking block is slidably installed in the locking groove; the interface friction block is fixed on the locking block; and the interface locking spring is used to drive the interface friction block to press tightly against the dedicated interface.

[0011] Furthermore, a plug locking groove is provided on the groove wall of the plug insertion slot; the plug friction block is slidably mounted on the plug locking groove; the plug locking spring is used to drive the plug friction block to press tightly against the power plug.

[0012] Compared with the prior art, the advantages of this invention are as follows: It utilizes a dedicated interface to connect to the accelerometer, and the control acquisition module collects the input voltage of the dedicated interface, i.e., the output voltage of the accelerometer, thereby acquiring the zero-point voltage values ​​of the accelerometer in three directions. The control acquisition module displays the corresponding zero-point voltage values ​​on the UD, NS, and EW displays, facilitating real-time data observation by testing personnel and assisting in accelerometer calibration. An adjustable voltage regulator circuit is electrically connected to the output terminal of the dedicated interface, and the voltage adjustment knob can adjust the output voltage of the adjustable voltage regulator circuit. The dedicated interface can power different accelerometers or provide different power supply voltages to the accelerometers. The output display shows the output voltage of the adjustable voltage regulator circuit under the control of the control acquisition module, making operation convenient and further aiding in accelerometer calibration. The housing, control acquisition module, adjustable voltage regulator circuit, and telescopic handle constitute a relatively compact structure, improving the portability of the testing device. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention;

[0014] Figure 2 This is a rear view of the present invention;

[0015] Figure 3 This is a side view of the present invention;

[0016] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 5 This is a side view of the present invention;

[0018] Figure 6 This is a side view of the present invention;

[0019] In the diagram: 1. Panel; 2. UD display; 3. NS display; 4. EW display; 5. Output display; 6. Voltage adjustment knob; 7. Main switch; 8. Support feet; 9. Anti-slip pad; 10. Telescopic handle; 11. U-shaped plate; 12. Heat dissipation holes; 13. Cooling fan; 14. Temperature sensor; 15. T-shaped perforated plate; 16. Heat sink; 17. Storage slot; 18. Cable winding post; 20. Fixing boss; 21. Dedicated interface; 22. Power plug; 23. Plug insertion slot; 24. Plug locking slot; 25. Plug locking spring; 26. Plug friction block; 27. Interface insertion slot; 28. Interface locking spring; 29. ​​Locking block; 30. Interface friction block. Detailed Implementation

[0020] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings, but the protection scope of this utility model is not limited to the described embodiments.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] In the description of this utility model, it should be understood that the terms "left", "right", "front", "back", "up", "down", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Example 1:

[0024] like Figure 1-6 As shown, the zero-point detection device for an early warning accelerometer provided by this utility model includes: a housing, a dedicated interface 21, a heat dissipation mechanism, a control acquisition module, and an adjustable voltage regulator circuit; the dedicated interface 21 is used to connect the accelerometer; a T-shaped perforated plate 15 is installed inside the housing; the control acquisition module is installed on the T-shaped perforated plate 15; the heat dissipation mechanism is installed inside the housing for air cooling.

[0025] Four displays are mounted on the front side of the housing; the four displays are UD display 2, NS display 3, EW display 4 and output display 5; the input terminal of the adjustable voltage regulator circuit is electrically connected to the power plug 22 for connecting to the mains power, and the output terminal is electrically connected to the output terminal of the dedicated interface 21 for power supply; a voltage adjustment knob 6 for adjusting the output voltage of the adjustable voltage regulator circuit is mounted on the front side of the housing; a main switch 7 connected in series with the power plug 22 is mounted on the housing;

[0026] The control acquisition module is used to acquire the input voltage of the dedicated interface 21 and the output voltage of the adjustable voltage regulator circuit. The heat dissipation mechanism and the four displays are all controlled by the control acquisition module. A telescopic handle 10 is installed on the top of the housing.

[0027] The accelerometer is connected via a dedicated interface 21. The control acquisition module collects the input voltage of the dedicated interface 21, i.e., the output voltage of the accelerometer, thereby acquiring the zero-point voltage values ​​of the three directions of the accelerometer. The control acquisition module displays the corresponding zero-point voltage values ​​on the UD display screen 2, NS display screen 3, and EW display screen 4, facilitating real-time data observation by the testing personnel and helping them calibrate the accelerometer. An adjustable voltage regulator circuit is electrically connected to the output terminal of the dedicated interface 21, and the voltage adjustment knob 6 can adjust the output voltage of the adjustable voltage regulator circuit. The dedicated interface 21 can power different accelerometers or provide different power supply voltages to the accelerometers. The output display screen 5 displays the output voltage of the adjustable voltage regulator circuit under the control of the control acquisition module, making operation convenient and further aiding in accelerometer calibration. The housing, control acquisition module, adjustable voltage regulator circuit, and telescopic handle 10 constitute a relatively compact structure, improving the portability of the testing device.

[0028] Furthermore, the housing includes two panels 1 and two U-shaped plates 11; fixed protrusions 20 are provided on the opposite sides of the two panels 1; the two U-shaped edges of the U-shaped plates 11 are respectively mounted on the two fixed protrusions 20; the U-shaped edge of the upper U-shaped plate 11 is attached to the left and right upper sides of the fixed protrusions 20, and the U-shaped edge of the lower U-shaped plate 11 is attached to the left and right lower sides of the fixed protrusions 20; the two straight edges of the U-shaped plate 11 are respectively attached to the two straight edges of the other U-shaped plate; support feet 8 are provided at the four corners of the bottom surface of the lower U-shaped plate 11; anti-slip pads 9 are provided on the lower side of the support feet 8; the pressure regulating knob 6 and the four displays are all located on the front panel 1.

[0029] The housing is constructed using two panels 1 and two U-shaped plates 11, which facilitates assembly and disassembly, provides protection for components, and allows for easy movement.

[0030] Furthermore, the control acquisition module includes a controller, a first voltage acquisition circuit, a second voltage acquisition circuit, a third voltage acquisition circuit, and a fourth voltage acquisition circuit. The output terminals of the first, second, and third voltage acquisition circuits are all electrically connected to the controller, and their input terminals are electrically connected to the respective input terminals of the dedicated interface through the first, second, and third voltage amplification circuits, respectively, for acquiring the zero-point voltage values ​​of the three directions of the accelerometer. The input terminal of the fourth voltage acquisition circuit is electrically connected to the output terminal of the adjustable voltage regulator circuit, and its output terminal is electrically connected to the controller.

[0031] By utilizing the first voltage acquisition circuit, the first voltage amplification circuit, the second voltage acquisition circuit, the second voltage amplification circuit, the third voltage acquisition circuit, the third voltage amplification circuit, and the fourth voltage acquisition circuit, it is possible to acquire the zero-point voltage values ​​of the three directions of the accelerometer and the output voltage value of the adjustable voltage regulator circuit.

[0032] Furthermore, the heat dissipation mechanism includes a temperature sensor 14 and a heat dissipation fan 13; the temperature sensor 14 is installed inside the housing and is electrically connected to the controller; the heat dissipation fan 13 is installed through the rear side wall of the housing and is electrically connected to the controller through the fan drive circuit; a number of heat dissipation holes 12 are provided on the upper side of the housing; and a heat dissipation block 16 for attaching to the heat-generating components is installed inside the housing.

[0033] Heat sink 16 is used to attach to heat-generating components to accelerate heat dissipation and cooling. Temperature sensor 14 is used to monitor the temperature inside the housing. A preset temperature threshold is set. When the detected temperature is higher than the temperature threshold, the controller controls the cooling fan 13 to blow air to dissipate heat. The heat dissipation holes 12 make the ventilation effect of the housing better.

[0034] Furthermore, it also includes a storage structure; the storage structure includes an interface locking structure and a plug locking structure;

[0035] Two storage slots 17 are provided on the rear side of the housing;

[0036] On the walls of the two storage slots 17, there are respectively an interface insertion slot 27 for inserting the dedicated interface 21 and a plug insertion slot 23 for inserting the power plug 22; the interface locking structure and the plug locking structure are respectively installed in the interface insertion slot 27 and the plug insertion slot 23, and are used to lock the dedicated interface 21 and the power plug 22 respectively.

[0037] Two winding posts 18 with bent ends are fixed on the bottom of each of the two storage slots 17, and the bending directions of the two winding posts 18 on the same storage slot 17 are opposite; the cable of the dedicated interface 21 and the cable of the power plug 22 are respectively wound on the corresponding two winding posts 18.

[0038] The cable is wound around the winding post 18, and the two storage slots 17 respectively store the locking special interface 21 and the power plug 22, thereby improving the portability of the detection device.

[0039] Furthermore, the interface locking structure includes a locking block 29, an interface friction block 30, and an interface locking spring 28; an interface locking groove is provided on the groove wall of the interface insertion slot 27; the locking block 29 is slidably installed in the interface locking groove; a guide groove is provided on the hole wall of the interface locking groove; a guide block that slides with the guide groove is fixed on the locking block 29; the interface friction block 30 is fixed on the locking block 29 and is used to extend out of the interface locking groove; the interface locking spring 28 is elastically supported between the bottom of the interface locking groove and the locking block and is used to drive the interface friction block 30 to press tightly against the dedicated interface 21; a first ramp surface is provided on the interface friction block 30 to facilitate pressing the interface friction block 30 into the interface locking groove.

[0040] The interface locking spring 28 drives the interface friction block 30 to press tightly against the dedicated interface 21, thereby achieving friction positioning and locking of the dedicated interface 21. The first inclined surface facilitates the pressing of the interface friction block 30 into the interface locking groove when the dedicated interface 21 is inserted into the interface insertion groove 27. The sliding fit between the guide groove and the guide block prevents relative rotation between the locking block 29 and the interface locking groove, and also prevents the locking block 29 from disengaging from the interface locking groove.

[0041] Furthermore, the plug locking structure includes a plug friction block 26 and a plug locking spring 25; a plug locking groove 24 is provided on the groove wall of the plug insertion groove 23; the plug friction block 26 is inserted into the plug locking groove 24; the plug locking spring 25 is elastically connected between the plug friction block 26 and the bottom of the plug locking groove 24, and is used to drive one end of the plug friction block 26 to press tightly onto the power plug 22, and the other end to be in the plug locking groove 24; a second ramp surface is provided on the plug friction block 26 to facilitate pressing the plug friction block into the plug locking groove 24.

[0042] The plug locking spring 25 drives the plug friction block 26 to press tightly against the power plug 22, thereby achieving friction positioning and locking of the power plug 22; the second inclined surface facilitates the pressing of the plug friction block 26 into the plug locking groove 24 when the power plug 22 is inserted into the plug insertion groove 23; the plug locking spring 25 limits the plug friction block 26, preventing the plug friction block 26 from dislodging from the plug locking groove 24.

[0043] In the zero-point detection device for an early warning accelerometer provided by this utility model, the controller adopts an existing single-chip microcomputer control acquisition module; the first voltage acquisition circuit, the second voltage acquisition circuit, the third voltage acquisition circuit, and the fourth voltage acquisition circuit all adopt existing voltage acquisition circuit modules; the first voltage amplification circuit, the second voltage amplification circuit, and the third voltage amplification circuit all adopt existing voltage amplification circuit modules; the cooling fan 13 adopts an existing cooling fan, and the fan drive circuit adopts a corresponding cooling fan drive circuit; the temperature sensor 14 adopts an existing temperature sensor; all four displays adopt existing displays; the adjustable voltage regulator circuit adopts an existing adjustable voltage regulator circuit; and the voltage adjustment knob 6 adopts an existing voltage adjustment knob.

[0044] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.

Claims

1. A zero-point detection device for an early warning accelerometer, characterized in that: It includes a housing, a dedicated interface (21), a heat dissipation mechanism, a control acquisition module, and an adjustable voltage regulator circuit; A dedicated interface (21) is used to connect to an accelerometer; a T-shaped perforated plate (15) is installed inside the housing; a control acquisition module is installed on the T-shaped perforated plate (15); a heat dissipation mechanism is installed inside the housing for air cooling; four displays are installed on the housing; the input terminal of the adjustable voltage regulator circuit is electrically connected to the power plug (22) for connecting to the mains power, and the output terminal is electrically connected to the output terminal of the dedicated interface (21) for power supply; a voltage adjustment knob (6) for adjusting the output voltage of the adjustable voltage regulator circuit is installed on the housing; a main switch (7) connected in series with the power plug (22) is installed on the housing; the control acquisition module is used to acquire the input voltage of the dedicated interface (21) and the output voltage of the adjustable voltage regulator circuit, and the heat dissipation mechanism and the four displays are controlled by the control acquisition module; a telescopic handle (10) is installed on the top of the housing.

2. The zero-point detection device for an early warning accelerometer according to claim 1, characterized in that: The housing includes two panels (1) and two U-shaped plates (11); the openings of the two U-shaped plates (11) are joined together to form a cylindrical structure; the two panels (1) are used to close the two ends of the cylindrical structure respectively; the pressure regulating knob (6) and four displays are located on the front panel (1).

3. The zero-point detection device for an early warning accelerometer according to claim 1, characterized in that: The control acquisition module includes a controller, a first voltage acquisition circuit, a second voltage acquisition circuit, a third voltage acquisition circuit, and a fourth voltage acquisition circuit. The output terminals of the first voltage acquisition circuit, the second voltage acquisition circuit, and the third voltage acquisition circuit are all electrically connected to the controller, and their input terminals are electrically connected to the respective input terminals of the dedicated interface (21) through the first voltage amplification circuit, the second voltage amplification circuit, and the third voltage amplification circuit, respectively. The input terminal of the fourth voltage acquisition circuit is electrically connected to the output terminal of the adjustable voltage regulator circuit, and its output terminal is electrically connected to the controller.

4. The zero-point detection device for an early warning accelerometer according to claim 1, characterized in that: The heat dissipation mechanism includes a temperature sensor (14) and a heat dissipation fan (13); the temperature sensor (14) is installed inside the housing and is electrically connected to the controller; the heat dissipation fan (13) is installed through the rear side wall of the housing and is electrically connected to the controller through the fan drive circuit; several heat dissipation holes (12) are provided on the upper side of the housing.

5. The zero-point detection device for an early warning accelerometer according to claim 1, characterized in that: It also includes a storage structure; the storage structure includes an interface locking structure and a plug locking structure; two storage slots (17) are provided on the housing; on the walls of the two storage slots (17) are respectively provided an interface insertion slot (27) for inserting a dedicated interface (21) and a plug insertion slot (23) for inserting a power plug (22); the interface locking structure and the plug locking structure are respectively installed in the interface insertion slot (27) and the plug insertion slot (23) to lock the dedicated interface (21) and the power plug (22); a winding post (18) is fixed on the bottom of the two storage slots (17); the cables of the dedicated interface (21) and the power plug (22) are respectively wound on the corresponding winding post (18).

6. The zero-point detection device for an early warning accelerometer according to claim 5, characterized in that: The interface locking structure includes a locking block (29), an interface friction block (30), and an interface locking spring (28); an interface locking groove is provided on the groove wall of the interface insertion slot (27); the locking block (29) is slidably installed in the locking groove; the interface friction block (30) is fixed on the locking block (29); the interface locking spring (28) is used to drive the interface friction block (30) to press tightly against the special interface (21).

7. The zero-point detection device for an early warning accelerometer according to claim 5, characterized in that: A plug locking groove (24) is provided on the groove wall of the plug insertion groove (23); the plug friction block (26) is slidably installed on the plug locking groove (24); the plug locking spring (25) is used to drive the plug friction block (26) to press tightly against the power plug (22).

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