CN218727950U

CN218727950U - Analog signal output calibrating device

Info

Publication number: CN218727950U
Application number: CN202222643132.9U
Authority: CN
Inventors: 许赵武; 黄文钦; 许良
Original assignee: GUANGZHOU HAIGU ELECTRONIC TECHNOLOGY CO LTD
Current assignee: GUANGZHOU HAIGU ELECTRONIC TECHNOLOGY CO LTD
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2023-03-24
Anticipated expiration: 2032-10-09

Abstract

The utility model discloses a relate to calibrating device technical field, specifically be an analog signal output calibrating device, including the calibrating device main part, the shrink groove has been seted up to the upper end symmetry of calibrating device main part, installs the handle in the shrink groove, and the seal groove has been seted up to bilateral symmetry around the calibrating device main part, and a plurality of locating holes have been seted up to the equal symmetry in the left and right sides of calibrating device main part, and a pair of spacing pin rod is installed to the left and right sides symmetry of calibrating device main part, and bilateral symmetry is provided with the guard plate around the calibrating device main part, the beneficial effects of the utility model are that: the guard plate that should set up plays the effect of protection to parts such as calibrating device's connection port, when not using calibrating device, makes sealing connection between guard plate and the calibrating device main part through the sealing washer that sets up, can effectually prevent that outside water stain dust etc. from getting into in connection port or the part, when needs use calibrating device, pulls the pull rod earlier, makes the locking lever among the locking mechanical system shift out from the locating hole.

Description

Analog signal output calibrating device

Technical Field

The utility model relates to a calibrating device technical field specifically is an analog signal output calibrating device.

Background

There are many products that use analog quantities such as voltage and current as signal output in industry, but the output accuracy is affected by various hardware conditions, such as sampling resistance, power supply fluctuation, zero offset of operational amplifier, etc., which results in low output accuracy, and by improving the sampling resistance accuracy, power supply output accuracy, operational amplifier performance, etc., which results in high cost and still large deviation of accuracy, so we need an analog signal output calibration device to solve the above drawbacks. The conventional calibration device is not provided with a protection device, when the calibration device is not used, components such as a connection port of the calibration device are directly exposed to the outside, the sealing performance is poor, the components such as the connection port are easily damaged due to external water, dust and the like, and the components such as the connection port are also damaged when the calibration device is not provided with the protection device and is collided by external force, so that the normal use of the analog signal output calibration device is influenced.

Disclosure of Invention

An object of the utility model is to provide an analog signal output calibrating device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an analog signal output calibrating device, includes the calibrating device main part, the shrink groove has been seted up to the upper end symmetry of calibrating device main part, install the handle in the shrink groove, the seal groove has been seted up to bilateral symmetry around the calibrating device main part, a plurality of locating holes have been seted up to the equal symmetry in both sides of calibrating device main part, a pair of spacing pin rod is installed to the bilateral symmetry of calibrating device main part, bilateral symmetry is provided with the guard plate around the calibrating device main part, the side of guard plate is provided with the sealing washer, the symmetrical welding of the left and right sides of guard plate has the support arm pole, the welding of the lower extreme of support arm pole has the circular block, the circular block rotates with spacing pin rod to be connected, the circular slot has been seted up in the circular block, locking mechanical system is installed to the circular block upper end.

Preferably, the left side and the right side of the handle are symmetrically welded with round rods, and the handle is rotatably connected with the contraction groove through the round rods.

Preferably, the limiting pin rod is welded with the calibrating device body, and the plurality of positioning holes are distributed on the side face of the calibrating device body in a circumferential array mode.

Preferably, the sealing ring is bonded with the protection plate and is clamped with the sealing groove.

Preferably, the locking mechanism includes: the locking device comprises a locking rod, a pull rod and a locking spring, wherein the locking rod is arranged in the circular groove, the pull rod is movably inserted into the side face of the circular block, the locking spring is sleeved on the pull rod, and one end of the pull rod is welded with the locking rod.

Preferably, the locking rod is connected with the circular groove in a sliding mode, and one end of the locking rod penetrates through the circular block and is inserted into the positioning hole.

Preferably, the calibration device body includes: the output end of the sampling module is connected with the amplifying module, the output end of the amplifying module is connected with the ADC module, the output end of the ADC module is connected with the MCU, and the output end of the MCU is connected with the digital interface.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses the structure sets up rationally, and is functional strong, has following advantage:

1. the protective plate plays a role in protecting parts such as a connecting port of the calibrating device, when the calibrating device is not used, the protective plate and the calibrating device main body are in sealing connection through the arranged sealing ring, external water stain dust and the like can be effectively prevented from entering the connecting port or the parts, when the calibrating device needs to be used, the pull rod is pulled firstly, the locking rod in the locking mechanism is moved out of the positioning hole, at the moment, the circular block can be conveniently rotated, the protective plate is driven to downwards rotate through the supporting arm rod, when the protective plate rotates to the lower side of the calibrating device main body, the protective plate is fixed through the arranged locking mechanism, at the moment, the protective plate and the supporting arm rod are matched to support the calibrating device main body, the calibrating device main body is erected, and at the moment, the calibrating device main body can be conveniently used;

2. the product to be calibrated outputs a test point to be calibrated through digital signal control, the sampling module samples a current signal through a high-precision sampling resistor and amplifies the signal through an amplifier, then the practical high-precision high-order ADC conversion module converts the signal into a digital signal, the controller transmits the digital signal back to the product to be calibrated through a data interface, the product to be calibrated writes the digital signal into an EEPROM or a FLASH, the subsequent output is output after the calibration by taking the data as correction data, and the calibration of one point is completed.

Drawings

Fig. 1 is a schematic structural diagram of an analog signal output calibration device of the present invention;

fig. 2 is a schematic sectional view of the analog signal output calibration device of the present invention;

FIG. 3 is a schematic structural diagram of the main body of the calibrating device of the present invention;

FIG. 4 is a schematic structural view of the protection plate, the circular block and the locking mechanism of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 4;

fig. 6 is a system diagram of the main structure of the calibrating apparatus of the present invention.

In the figure: 1. calibrating the device body; 11. a contraction groove; 12. a handle; 13. a sealing groove; 14. positioning holes; 15. a limit pin rod; 2. a protection plate; 21. a seal ring; 3. a support arm; 4. a circular block; 41. a circular groove; 5. a locking lever; 51. a pull rod; 52. a locking spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution: the utility model provides an analog signal output calibrating device, including calibrating device main part 1, shrink groove 11 has been seted up to calibrating device main part 1's upper end symmetry, install handle 12 in the shrink groove 11, seal groove 13 has been seted up to calibrating device main part 1's front and back bilateral symmetry, a plurality of locating holes 14 have been seted up to calibrating device main part 1's the equal symmetry in both sides, a pair of spacing pin 15 is installed to calibrating device main part 1's left and right sides symmetry, handle 12's left and right sides symmetry welding has the round bar, handle 12 rotates with shrink groove 11 through the round bar to be connected, spacing pin 15 welds with calibrating device main part 1, a plurality of locating holes 14 are the side of circumference array distribution in calibrating device main part 1, handle 12 through the setting can be convenient carry and remove calibrating device main part 1.

The bilateral symmetry is provided with guard plate 2 around calibrating device main part 1, and the side of guard plate 2 is provided with sealing washer 21, and sealing washer 21 bonds with guard plate 2, and sealing washer 21 and seal groove 13 joint extrude sealing washer 21 through guard plate 2 and 1 cooperation of calibrating device main part to make sealing connection between guard plate 2 and the calibrating device main part 1, play the effect of protection to connection port and external component through guard plate 2.

The left and right sides symmetrical welding of guard plate 2 has support arm pole 3, and the lower extreme welding of support arm pole 3 has circular block 4, and circular block 4 rotates with spacing pin rod 15 to be connected, has seted up circular slot 41 in the circular block 4, and locking mechanical system is installed to 4 upper ends of circular block, and locking mechanical system is including: the locking device comprises a locking rod 5, a pull rod 51 and a locking spring 52, wherein the locking rod 5 is arranged in a circular groove 41, the pull rod 51 is movably inserted into the side surface of the circular block 4, the locking spring 52 is sleeved on the pull rod 51, one end of the pull rod 51 is welded with the locking rod 5, the locking rod 5 is in sliding connection with the circular groove 41, one end of the locking rod 5 penetrates through the circular block 4 to be inserted into the positioning hole 14, the pull rod 51 is in sliding connection with the circular block 4, one end of the locking spring 52 is inserted into the circular groove 41, the other end of the locking spring 52 is inserted into the locking rod 5, and the locking spring 52 applies elasticity to the locking rod 5.

The calibration device body 1 includes: the output end of the sampling module is connected with the amplifying module, the output end of the amplifying module is connected with the ADC module, the output end of the ADC module is connected with the MCU, and the output end of the MCU is connected with the digital interface.

The product to be calibrated outputs a test point to be calibrated through digital signal control, the sampling module samples a current signal through a high-precision sampling resistor and amplifies the signal through an amplifier, then the practical high-precision high-order ADC conversion module converts the signal into a digital signal, the controller transmits the digital signal back to the product to be calibrated through a data interface, the product to be calibrated writes the digital signal into an EEPROM or a FLASH, the subsequent output is output after the calibration by taking the data as correction data, and the calibration of one point is completed. Through the guard plate 2 that sets up plays the effect of protection to the connection port in the calibrating device main part 1 outside and part etc, when not using calibrating device, sealing washer 21 through setting up makes sealing connection between guard plate 2 and the calibrating device main part 1, can effectually prevent that outside water stain dust etc. from getting into in connecting port or the part, when needs use calibrating device, stimulate pull rod 51 earlier, pull rod 51 drives locking lever 5 and removes, locking lever 5 extrudes locking spring 52, make locking lever 5 in the locking mechanical system shift out from locating hole 14 simultaneously, rotation circular block 4 that this moment can be convenient, circular block 4 drives support arm 3 and rotates downwards, drive guard plate 2 through support arm 3 and rotate downwards, when guard plate 2 rotates the below of calibrating device main part 1, make fixed connection between circular block 4 and the calibrating device main part 1 through the locking mechanical system who sets up, thereby fix guard plate 2 and support arm 3 cooperation and support calibrating device main part 1 this moment, erect calibrating device main part 1, prevent that water stain etc. from getting into its interior along the bottom of calibrating device main part 1, use calibrating device main part 1 that this moment can be convenient.

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

Claims

1. An analog signal output calibration device comprising a calibration device body (1), characterized in that: shrink groove (11) have been seted up to the upper end symmetry of calibrating device main part (1), install handle (12) in shrink groove (11), seal groove (13) have been seted up to bilateral symmetry around calibrating device main part (1), a plurality of locating holes (14) have been seted up to the equal symmetry in the left and right sides of calibrating device main part (1), a pair of spacing pin rod (15) are installed to the left and right sides symmetry of calibrating device main part (1), bilateral symmetry is provided with guard plate (2) around calibrating device main part (1), the side of guard plate (2) is provided with sealing washer (21), the left and right sides symmetrical welding of guard plate (2) has support arm pole (3), the lower extreme welding of support arm pole (3) has circular block (4), circular block (4) are rotated with spacing pin rod (15) and are connected, circular groove (41) have been seted up in circular block (4), locking mechanical system is installed to circular block (4) upper end.

2. An analog signal output calibration device according to claim 1, wherein: the left side and the right side of the handle (12) are symmetrically welded with round rods, and the handle (12) is rotatably connected with the contraction groove (11) through the round rods.

3. An analog signal output calibration device according to claim 1, wherein: the limiting pin rod (15) is welded with the calibrating device main body (1), and the positioning holes (14) are distributed on the side face of the calibrating device main body (1) in a circumferential array mode.

4. An analog signal output calibration device according to claim 1, wherein: the sealing ring (21) is bonded with the protection plate (2), and the sealing ring (21) is connected with the sealing groove (13) in a clamping mode.

5. An analog signal output calibration device according to claim 1, wherein: the locking mechanism comprises: the locking device comprises a locking rod (5), a pull rod (51) and a locking spring (52), wherein the locking rod (5) is arranged in a circular groove (41), the pull rod (51) is movably inserted into the side face of the circular block (4), the locking spring (52) is sleeved on the pull rod (51), and one end of the pull rod (51) is welded with the locking rod (5).

6. An analog signal output calibration device according to claim 5, wherein: the locking rod (5) is connected with the circular groove (41) in a sliding mode, and one end of the locking rod (5) penetrates through the circular block (4) to be connected with the positioning hole (14) in an inserting mode.

7. An analog signal output calibration device according to claim 1, wherein: the calibration device body (1) includes: the output end of the sampling module is connected with the amplifying module, the output end of the amplifying module is connected with the ADC module, the output end of the ADC module is connected with the MCU, and the output end of the MCU is connected with the digital interface.