Metering calibration adaptation device

Abstract

The utility model relates to the technical field of metering calibration, in particular to a metering calibration adaptation device which comprises a protective shell, a screen groove is formed in one side of the top end of the protective shell, a display screen is arranged in the screen groove, a protective cover is installed on the side, away from the display screen, of the protective shell through bolts, and the protective shell and the protective cover are assembled to form a cavity and provided with a detection assembly. An exhaust connector is installed on the side, away from the display screen, of the protective shell in a penetrating mode, a switch is fixedly installed on the side, adjacent to the exhaust connector, of the protective shell, and a wiring slot is installed on the side, adjacent to the switch, of the protective shell in a penetrating mode. A traditional multi-device calibration process is integrated into a portable device, the operation complexity is reduced, the efficiency is improved, meanwhile, a lightweight protective shell and an integrated layout are adopted, pressure adjustment, data acquisition and power supply units are highly integrated, calibration can be achieved without external connection, environmental dependence is broken through, and the mobile scene operation requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of metrology and calibration technology, specifically a metrology and calibration adapter device. Background Technology

[0002] A metrology calibration adapter is a specialized tool used to ensure the accuracy of measuring equipment. It verifies and calibrates the output values ​​of the measured equipment (such as pressure sensors and instruments) using built-in standard parameters or adjustable references. Because industrial equipment and instruments are susceptible to measurement deviations due to environmental factors and wear during long-term use, regular calibration maintains data reliability and prevents production quality defects, safety risks, or compliance issues caused by accumulated errors, thereby ensuring the stability of the process and the consistency of products.

[0003] However, traditional calibration devices rely on multiple separate devices such as pressurizing pumps, depressurizing valves, and data acquisition modules, resulting in large size, scattered components, and difficulty in rapid deployment and portability. Moreover, in existing technologies, mechanical adjustment and electronic systems are mostly independent units, lacking real-time data interaction and closed-loop control capabilities, which leads to the calibration process relying on human experience and judgment, resulting in high error rates and low efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a metrological calibration adapter to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A metrological calibration adapter includes a protective housing. The top side of the protective housing has a screen groove and a built-in display screen. A protective cover is bolted to the side of the protective housing away from the display screen. The protective housing and the protective cover are assembled to form a chamber and are equipped with a detection component. An exhaust connector is installed through the protective housing on the side away from the display screen. A switch is fixedly installed on the side of the protective housing adjacent to the exhaust connector. A wiring slot is installed through the protective housing on the side adjacent to the switch.

[0007] Preferably, the detection component includes a cylinder, which is fixedly installed in the middle of the chamber, and one side of the cylinder is fixedly installed on the exhaust connector via a pipe.

[0008] Preferably, a pressure relief valve is fixedly installed on the other side of the cylinder, and an adjusting valve rod is screwed into the pressure relief valve through an internal thread. The adjusting valve rod passes through the outside of the protective shell on the side adjacent to the display screen.

[0009] Preferably, an air cylinder is fixedly installed on the side of the cylinder adjacent to the pressure relief valve, a one-way valve is provided at the connection between the air cylinder and the cylinder, a first piston is provided inside the air cylinder, a pull rod is fixedly installed on one side of the first piston, and a first handle is fixedly installed on the pull rod through the outside of the protective shell.

[0010] Preferably, an adjusting cylinder is fixedly installed on the side of the cylinder adjacent to the air cylinder, and a second piston is provided inside the adjusting cylinder. A threaded rod is installed on one side of the second piston through a bearing.

[0011] Preferably, the threaded rod is screwed into the extension end of the adjusting cylinder by a thread on the radially outer side and passes through the outside of the protective shell, and a second handle is fixedly installed at the extension end of the threaded rod.

[0012] Preferably, a pressure sensor is provided on one side inside the cylinder. The pressure sensor is connected to a circuit board via a flexible wire. The circuit board is respectively soldered with a switch and pins of a wiring slot.

[0013] Preferably, the circuit board is connected to the display screen and the battery pack respectively via flexible wires, and the circuit board and the battery pack are adjacent to each other and fixedly installed on one side of the adjacent cylinder inside the cavity.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This metrology calibration adapter, through decoupled mechanical component design (independent operation of pressurization, depressurization, and fine-tuning) and deep collaboration with electronic system, integrates the complex calibration process of traditional multi-device linkage into a single portable device, significantly reducing operational complexity and improving calibration efficiency.

[0016] 2. This metrology calibration adapter adopts a lightweight protective shell and chamber integrated layout, which highly integrates pressure regulation, data acquisition and power supply units. It can achieve full-function calibration without external air source or power supply, breaking through the dependence of traditional equipment on fixed environment and meeting the rapid operation requirements of mobile scenarios. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the top structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the protective cover of this utility model;

[0020] Figure 4 This is a schematic diagram of the overall planar structure of this utility model.

[0021] In the diagram: 101, Protective shell; 102, Screen slot; 103, Display screen; 104, Protective cover; 105, Chamber; 106, Detection component; 107, Exhaust connector; 108, Switch; 109, Wiring slot; 110, Cylinder; 111, Pressure relief valve; 112, Adjusting valve stem; 113, Inflation cylinder; 114, One-way valve; 115, First piston; 116, Pull-out rod; 117, First handle; 118, Adjusting cylinder; 119, Second piston; 120, Threaded rod; 121, Second handle; 122, Pressure sensor; 123, Circuit board; 124, Battery pack. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0024] A metrological calibration adapter includes a protective housing 101. A screen groove 102 is provided on one side of the top of the protective housing 101, and a display screen 103 is built into it. A protective cover 104 is bolted to the side of the protective housing 101 away from the display screen 103. The protective housing 101 and the protective cover 104 are assembled to form a chamber 105, which is equipped with a detection component 106. An exhaust connector 107 is installed through the protective housing 101 on the side away from the display screen 103. A switch 108 is fixedly installed on the side of the protective housing 101 adjacent to the exhaust connector 107. A wiring slot 109 is installed through the protective housing 101 on the side adjacent to the switch 108.

[0025] The above solution provides physical protection and support for internal components through a protective shell, fixes the display screen and realizes the human-machine interface through a screen slot, provides real-time feedback of calibration data through the display screen, forms a sealed chamber with the protective cover and protective shell to isolate external interference, accommodates the detection components and maintains a stable working environment, performs the core function of pressure calibration through the detection components, connects to external equipment through an exhaust connector and synchronizes pressure data, controls the on / off state of the circuit through a switch, and realizes electrical signal interaction with the device being calibrated through a wiring slot.

[0026] In this embodiment, preferably, the detection component 106 includes a cylinder 110, which is fixedly installed in the middle of the chamber 105, and one side of the cylinder 110 is fixedly installed on the exhaust connector 107 through a pipe.

[0027] The above scheme generates and maintains the pressure environment required for calibration through a cylinder, and connects the cylinder to the exhaust port through a pipeline to transmit gas pressure.

[0028] In this embodiment, preferably, a pressure relief valve 111 is fixedly installed on the other side of the cylinder 110, and an adjusting valve rod 112 is screwed into the pressure relief valve 111 through an internal thread. The adjusting valve rod 112 passes through the outside of the protective shell 101 on the side adjacent to the display screen 103.

[0029] The above scheme allows for independent control of cylinder pressure release via a pressure relief valve, and precise control of gas flow rate by adjusting the valve stem to regulate the opening of the pressure relief valve.

[0030] In this embodiment, preferably, an air cylinder 113 is fixedly installed on the side of the cylinder 110 adjacent to the pressure relief valve 111. A one-way valve 114 is provided at the connection between the air cylinder 113 and the cylinder 110. A first piston 115 is provided inside the air cylinder 113. A pull rod 116 is fixedly installed on one side of the first piston 115. A first handle 117 is fixedly installed on the pull rod 116 through the outside of the protective shell 101.

[0031] The above scheme compresses gas through an air cylinder and inputs it into the cylinder. A one-way valve prevents gas backflow to ensure unidirectional pressure transmission. The first piston drives gas compression. The pull rod converts manual operation into linear piston movement. The first handle provides a fulcrum for manual force application.

[0032] In this embodiment, preferably, an adjusting cylinder 118 is fixedly installed on the side of the cylinder 110 adjacent to the air cylinder 113, and a second piston 119 is provided inside the adjusting cylinder 118. A threaded rod 120 is installed on one side of the second piston 119 through a bearing.

[0033] The above scheme provides volume compensation space through the regulating cylinder to fine-tune the pressure, changes the internal volume of the regulating cylinder through the second piston, converts the rotational motion into linear displacement of the piston through the threaded rod, and reduces the movement resistance of the threaded rod through the bearing.

[0034] In this embodiment, preferably, the threaded rod 120 is screwed into the extension end of the adjusting cylinder 118 by a thread on the radially outer side and passes through the outside of the protective shell 101, and a second handle 121 is fixedly installed at the extension end of the threaded rod 120.

[0035] The above scheme uses the precise screwing of the threaded rod to control the opening of the end of the regulating cylinder, and the second handle provides a fulcrum for manual rotation, thus achieving precise execution of pressure fine-tuning.

[0036] In this embodiment, preferably, a pressure sensor 122 is provided on one side of the cylinder 110. The pressure sensor 122 is connected to the circuit board 123 through a flexible wire. The circuit board 123 is respectively soldered with a switch 108 and the pins of the wiring slot 109.

[0037] The above scheme uses a pressure sensor to detect changes in cylinder pressure in real time, uses flexible wires to transmit electrical signals to avoid mechanical interference, uses a circuit board to process sensor data and control calibration logic, and uses pin soldering to ensure the stability of the circuit connection between the switch and the wiring slot.

[0038] In this embodiment, preferably, the circuit board 123 is connected to the display screen 103 and the battery pack 124 respectively via flexible wires, and the circuit board 123 and the battery pack 124 are adjacent to each other and fixedly installed inside the chamber 105 on one side of the adjacent cylinder 110.

[0039] The above solution uses a battery pack to power the circuit board, sensors, and display screen to support mobile operation, a compact layout of the integrated circuit board and battery pack to save chamber space, and flexible wires to connect the display screen to achieve data visualization.

[0040] In this embodiment of the metrological calibration adapter, during use, the operator connects the external device to be calibrated to the device through the wiring slot 109. This slot transmits the calibration command current and establishes a data interaction channel with the device being calibrated. After starting the switch 108, pulling the first handle 117 drives the first piston 115 in the air cylinder 113 to compress gas. The one-way valve 114 ensures that gas is input unidirectionally into the cylinder 110 to form calibration pressure. The pressure sensor 122 in the cylinder 110 collects pressure data in real time and transmits it through a flexible wire to the circuit board 123 (which integrates a signal processing module, a data conversion module, and a communication protocol unit to realize multi-signal fusion and calibration logic control) to convert it into an electrical signal, driving... The dynamic display screen 103 displays the current pressure value and simultaneously sends a calibration current signal to the calibrated device via the wiring slot 109 to trigger its feedback parameters. When pressure needs to be reduced, the regulating valve rod 112 is rotated to open the pressure relief valve 111, and the gas in the cylinder 110 is passively discharged through the exhaust connector 107, which is connected to the pressure port of the calibrated device. During this process, the exhaust connector 107 always serves as a fixed channel connected to the calibrated device to achieve pressure synchronization, and the display screen 103 displays the pressure difference between the two devices in real time. If further fine-tuning is required, the second handle 121 is operated independently to rotate the threaded rod 120, driving the second piston 119 in the regulating cylinder 118 to move linearly. The volume change compensates for the pressure difference, and this operation is independent of the pressurization and depressurization processes; the three components are completely decoupled: the first piston 115 only performs unidirectional pressurization, the pressure relief valve 111 independently performs pressure release (the pressure release rate is controlled by adjusting the opening of the valve stem 112), and the second piston 119 independently performs volume compensation fine-tuning. The three components coordinate through passive pressure synchronization of the exhaust connector 107 and electronic signal interaction of the wiring slot 109—when pressurizing, the exhaust connector 107 maintains a physical connection with the calibrated equipment, but the gas is locked by the one-way valve 114; when depressurizing, the gas is naturally discharged through the exhaust connector 107 and synchronizes with the equipment end pressure; during fine-tuning, the volume compensation of the regulating cylinder 118 directly acts on the gas. The cylinder 110 balances the pressure with the calibrated equipment, while the display screen 103 synchronously displays the device output value, equipment feedback value, and calibration difference curve, forming a precise logic of "independent mechanical action control (pressurization / depressurization / fine-tuning) - passive pressure synchronization - closed-loop verification of electronic data". This design avoids operational coupling errors by strictly separating the functions of the pressure relief valve 111 (pressure control) and the exhaust connector 107 (physical channel). At the same time, it reduces mutual interference by utilizing the on-demand operation of independent components. In the pressure instrument calibration, the entire process of "setting-depressurization-fine-tuning" is controllable, which not only ensures the stability of mechanical adjustment, but also minimizes human intervention errors through real-time data cross-verification of the electronic system.Overall structural portability optimization: The protective shell 101 and protective cover 104 are made of lightweight composite materials. The compact layout of the cylinder 110, regulating cylinder 118, circuit board 123, and battery pack 124 integrated within the chamber 105 significantly reduces the size and weight of the device. It requires no external power or air source and can be operated directly by hand, making it suitable for mobile calibration needs in complex scenarios such as fieldwork and workshops. This solves the core pain points of traditional calibration equipment being bulky and dependent on fixed environments. Furthermore, through deep collaboration between mechanical and electronic systems, calibration efficiency and ease of operation are significantly improved.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A metrological calibration adapter, comprising a protective housing (101), characterized in that: The protective shell (101) has a screen groove (102) on one side of its top and a display screen (103) is built in therein. A protective cover (104) is installed on the side of the protective shell (101) away from the display screen (103) by bolts. The protective shell (101) and the protective cover (104) are assembled to form a chamber (105) and a detection component (106) is provided therein. An exhaust connector (107) is installed through the protective shell (101) on the side away from the display screen (103). A switch (108) is fixedly installed on the side of the protective shell (101) adjacent to the exhaust connector (107). A wiring slot (109) is installed through the protective shell (101) on the side adjacent to the switch (108).

2. The metrological calibration adapter according to claim 1, characterized in that: The detection component (106) includes a cylinder (110), which is fixedly installed in the middle of the chamber (105), and one side of the cylinder (110) is fixedly installed on the exhaust connector (107) through a pipe.

3. The metrological calibration adapter according to claim 2, characterized in that: A pressure relief valve (111) is fixedly installed on the other side of the cylinder (110). An adjusting valve rod (112) is screwed into the pressure relief valve (111) through an internal thread. The adjusting valve rod (112) passes through the outside of the protective shell (101) on the side adjacent to the display screen (103).

4. The metrological calibration adapter according to claim 3, characterized in that: An air cylinder (113) is fixedly installed on the side of the cylinder (110) near the pressure relief valve (111). A one-way valve (114) is provided at the connection between the air cylinder (113) and the cylinder (110). A first piston (115) is provided inside the air cylinder (113). A pull rod (116) is fixedly installed on one side of the first piston (115). A first handle (117) is fixedly installed through the outside of the protective shell (101) of the pull rod (116).

5. A metrological calibration adapter according to claim 4, characterized in that: An adjusting cylinder (118) is fixedly installed on the side of the cylinder (110) adjacent to the air cylinder (113). A second piston (119) is provided inside the adjusting cylinder (118). A threaded rod (120) is installed on one side of the second piston (119) through a bearing.

6. The metrological calibration adapter according to claim 5, characterized in that: The threaded rod (120) is screwed into the extension end of the adjusting cylinder (118) radially outward and passes through the outside of the protective shell (101). A second handle (121) is fixedly installed at the extension end of the threaded rod (120).

7. A metrological calibration adapter according to claim 6, characterized in that: A pressure sensor (122) is provided on one side inside the cylinder (110). The pressure sensor (122) is connected to the circuit board (123) via a flexible wire. The circuit board (123) is soldered with a switch (108) and the pins of the wiring slot (109).

8. A metrological calibration adapter according to claim 7, characterized in that: The circuit board (123) is connected to the display screen (103) and the battery pack (124) respectively via flexible wires. The circuit board (123) and the battery pack (124) are adjacent to each other and fixedly installed inside the chamber (105) on one side of the adjacent cylinder (110).

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