Portable calibration device

Abstract

A portable calibration device. The device comprises: a body (1), wherein the body (1) is provided with a mounting slot (2), and the mounting slot (2) is internally provided with interfaces (3) for connecting cables (7); an interface module (4) embedded in the mounting slot (2), wherein the interface module (4) is internally provided with accommodating compartments (5) for accommodating the cables (7), the accommodating compartment (5) is internally provided with a socket (6), and after the interface module (4) is inserted into the mounting slot (2), the sockets (6) are aligned with the interfaces (3); and the cables (7) arranged in the accommodating compartments (5) of the interface module (4), wherein one end of the cable (7) is detachably connected to the socket (6), and the other end of the cable (7) is provided with a plug (8) configured to be connected to an external device. When the cables (7) are not in use, the cables (7) can be neatly accommodated to prevent the cables (7) from becoming tangled during transportation, thereby facilitating carrying by calibration personnel. When a cable (7) is needed, the cable (7) only needs to be taken out of the accommodating compartment (5), and the plug (8) is connected to the external device, so that a connection can be established quickly, thereby reducing the time required for connecting to the device and improving work efficiency.

Description

Portable testing device Technical Field

[0001] This invention relates to the field of calibration device technology, and more specifically to a portable calibration device. Background Technology

[0002] Thermal control instruments are widely used in many industrial fields such as power, chemical, and metallurgy. Precise thermal control instruments can monitor and control key parameters in the production process in real time, ensuring that production equipment operates under safe conditions and avoiding safety accidents caused by parameter malfunctions.

[0003] This power plant thermal control instrument calibration device is used to calibrate the accuracy, measurement accuracy, and reliability of thermal control instruments. However, the inventors are aware of several shortcomings in existing power plant thermal control instrument calibration devices: most of these devices connect to relevant calibration equipment via test lead connectors. This leads to inconvenience in storing and carrying the leads, resulting in disorganized placement and requiring time to tidy them up for subsequent use. Furthermore, some devices lack handles, making handling and support difficult; others lack displays, preventing direct observation and recording of test results, thus failing to meet practical application needs.

[0004] The inventors have disclosed an automatic calibration device for thermal instruments in power plants. This device includes an anti-slip block, a display, an input data interface, a control panel, a paper tray, and an ink cartridge rotating head. The front of the device features the input data interface, display, and control panel. Internally, it contains a processor module, a multiplexer, a sampling meter, a printing module, and a remote communication module. The input data interface is connected to the internal multiplexer. The processor module is connected to the sampling meter, printing module, remote communication module, and display. The paper tray is connected to the printing module. While this solution addresses some issues with the calibration device, it still presents the problem of inconvenient wire storage. Furthermore, although a handle is included, it is fixed, occupies a significant amount of space during use, and can easily snag on the operator's clothing during testing, potentially tipping the device over and causing damage. Summary of the Invention

[0005] In view of this, the present invention provides a portable calibration device to solve the problem of unreasonable wire arrangement in the calibration device of the above solution.

[0006] The portable testing device provided by the present invention includes: a body, wherein the body has a mounting groove and the mounting groove has an interface for connecting wires;

[0007] An interface module is embedded in the mounting slot. The interface module has a receiving compartment for placing wires. The receiving compartment has a socket. After the interface module is inserted into the mounting slot, the socket is opposite to the interface.

[0008] A wire is disposed within the housing of the interface module. One end of the wire is detachably connected to the socket, and the other end of the wire is provided with a plug for connecting to external devices.

[0009] In the above solution, the wires are housed within the interface module's storage compartment, allowing the entire device to neatly store the wires when not in use, preventing them from becoming tangled and messy during transport and making it convenient for calibration personnel. When needed, simply remove the wires from the storage compartment, connect the plug to the external device, and a connection can be quickly established, significantly saving the time required for connecting equipment and improving work efficiency.

[0010] The containment compartment provides physical protection for the wires, preventing them from being abraded, squeezed, or pulled during transport or storage. For example, during transportation, the wires will not rub against other items, causing damage to the outer sheath, nor will they be broken due to accidental pulling, thus extending the lifespan of the wires and reducing the frequency of replacement due to wire damage.

[0011] This portable calibration device connects to external devices via a plug at one end of a wire. As long as the plug type is appropriate, it can be connected to a variety of different external devices, demonstrating high versatility. This allows the device to meet the calibration needs of different users and different devices, making it suitable for various calibration scenarios. For example, whether calibrating electronic instruments, electrical equipment, or communication equipment, connection can be achieved simply by changing the wire with a suitable plug.

[0012] The interface module is embedded in the mounting slot, giving the entire device a modular design. If the interface module or wiring malfunctions, it can be easily removed from the mounting slot for repair or replacement without affecting the normal operation of other parts of the device.

[0013] One end of the wire is detachably connected to the socket. If the wire is damaged, it can be replaced individually without replacing the entire interface module, reducing maintenance costs. Furthermore, different specifications or types of wires can be replaced according to actual calibration needs, enhancing the flexibility of the device. For example, when calibrating equipment with different interface types, the corresponding plug type of wire can be easily replaced.

[0014] In one embodiment, the interface module has a plurality of the receiving compartments, and the openings of the receiving compartments are provided with compartment covers.

[0015] In the above solution, the design of multiple storage compartments allows for the categorized storage of wires of different types, specifications, or uses. By placing these wires in different storage compartments, inspectors can quickly locate the required wires, avoiding the hassle of searching through a pile of wires and greatly improving work efficiency.

[0016] Each compartment has a corresponding cover. The cover prevents the wires from slipping out of the compartment during device movement, ensuring that the wires are always neatly stored inside. At the same time, the cover also provides some protection for the wires, reducing the corrosion caused by external factors such as dust and moisture, and extending the lifespan of the wires.

[0017] Because it can store a variety of different leads, this portable calibration device is better suited for calibrating various types of equipment. This significantly improves the device's versatility, allowing one set of devices to meet the calibration needs of multiple scenarios and reducing the cost for users to equip different devices with multiple sets of leads.

[0018] Multiple storage compartments facilitate future functional expansion of the device. With technological advancements and the emergence of new equipment, if new types of wires are required for calibration, the device's functionality can be easily expanded simply by placing the new wires in available storage compartments on the existing interface modules, or by appropriately modifying the storage compartments to accommodate the new wires, without requiring a large-scale redesign and replacement of the entire device.

[0019] The design of multiple compartments and covers makes the entire interface module look neater and more organized, enhancing the overall appearance of the device. Compared to messy wiring, this design makes the device visually more organized, giving it a professional and sophisticated feel. It is especially suitable for applications where the appearance of the equipment is important, such as laboratories and high-end electronic equipment repair centers.

[0020] By rationally designing the layout and size of the storage compartments, more different types of cables can be accommodated within a limited space, improving space utilization. This helps maintain the device's compactness, making it more convenient to carry and use, and preventing it from appearing bulky due to cable storage. For example, when the device needs to be placed in a small tool bag or carrying case, the compact design better meets the requirements of space constraints.

[0021] In one embodiment, the compartment cover and the interface module are engaged by magnetic attraction and / or snap-fit.

[0022] In the above solution, if the lid and interface module use magnetic attraction, when the lid needs to be opened, only an external force slightly greater than the magnetic force needs to be applied to easily separate the lid and interface module, making the operation simple and quick. When closing the lid, simply bring the lid close to the interface module, and the magnetic force will automatically attract the lid into place, without the need for precise alignment or complicated operations.

[0023] The snap-fit ​​mechanism provides a clear tactile feedback when the cover snaps into the interface module, informing the user that the cover is properly installed and ensuring that it will not open accidentally during device movement.

[0024] If a combination of magnetic attraction and snap-fit ​​is used, it combines the convenience and speed of magnetic attraction with the stability and reliability of snap-fit. Magnetic attraction plays a major role when quickly opening and closing the compartment cover; while during daily use and movement of the device, the snap-fit ​​structure ensures that the compartment cover will not be accidentally opened due to external forces such as shaking or collision, ensuring the safe storage of the wires.

[0025] A magnetically attached cover of suitable strength ensures a tight seal between the cover and the interface module under normal use. Even if the device experiences some vibration, the magnetic force keeps the cover closed, preventing wires from slipping out of the housing. For example, during transportation, the device may be subjected to bumps; the magnetically attached cover effectively protects the wires, preventing damage or loss due to wires falling out.

[0026] The snap-fit ​​structure can withstand significant external forces, further enhancing the stability of the connection between the cover and the interface module. When the device is subjected to accidental impact or severe vibration, the snap-fit ​​cover is less likely to detach, ensuring that the wires inside the compartment remain safely protected. For portable calibration devices frequently used in complex environments, the snap-fit ​​connection provides better protection for the wires.

[0027] Whether using magnetic or snap-fit ​​mechanisms, repairs or replacements are relatively easy when the cover or interface module is damaged. If the magnetism of magnetic components weakens, the magnetic material can be directly replaced; damaged snap-fit ​​components can also be repaired through simple disassembly and installation of new parts. This ease of maintenance reduces the device's maintenance costs and extends its service life.

[0028] The magnetic and snap-fit ​​design prevents excessive wear caused by frequent opening and closing. The magnetic connection reduces mechanical friction to some extent, and the snap-fit ​​structure, if designed properly, can maintain good performance even after multiple openings and closings. This makes the connection between the cover and the interface module more durable and able to withstand long-term use.

[0029] In one embodiment, the interface module includes a mother module and a sub-module, the sub-module being detachably connected to the mother module, and the receiving compartment being disposed on the sub-module.

[0030] In the above solution, if a submodule malfunctions, only that submodule needs to be disassembled and replaced, without affecting the normal operation of the parent module and other submodules. Compared to replacing the entire interface module if it is damaged, this method greatly simplifies the maintenance process and saves maintenance time and costs.

[0031] The detachable submodule design eliminates the need for users to purchase entirely new interface modules or devices to meet occasional special verification requirements. Users only need to purchase the appropriate submodules as required, reducing equipment procurement costs. Furthermore, because the cost of a single submodule is relatively low, the replacement cost in case of submodule failure is also relatively small, further reducing operating costs.

[0032] Each submodule's storage compartment can be specifically designed to accommodate the characteristics of the wires it stores. For example, for longer wires, a larger compartment or one with a special winding structure can be designed; for thinner or more fragile wires, a compartment with cushioning material can be designed. This targeted design helps to better store and protect the wires, improving storage efficiency.

[0033] In one embodiment, the submodule is connected to the parent module via a threaded structure, and the parent module has a plurality of the submodules.

[0034] In the above scheme, the submodule is connected to the mother module via a threaded structure, providing high connection strength. The helical structure of the thread generates significant friction when tightened, ensuring a tight bond between the submodule and the mother module. During the use of the portable calibration device, even under certain vibration, impact, or external pulling forces, the submodule is unlikely to detach from the mother module, ensuring the stability of the housing and internal wiring, and guaranteeing the normal operation of the calibration work.

[0035] When a submodule malfunctions or needs to be replaced with one that functions differently, it can be easily removed from the parent module via a threaded structure. Similarly, installing a new submodule is also convenient. This makes device maintenance and upgrades easier and reduces maintenance costs.

[0036] The main module has multiple sub-modules connected by threads, providing a wide range of modular combination possibilities for the device. Different sub-modules can be categorized according to the purpose, type, or equipment compatibility of the wires. For example, wires used to connect communication equipment can be placed in one sub-module, while wires used for power equipment testing can be placed in another. This allows users to quickly locate the required sub-module and then the corresponding wires, facilitating categorization and management and improving work efficiency.

[0037] With the development of verification work and the emergence of new demands, new sub-modules can be designed and manufactured, and easily added to the main module via a threaded structure to expand the device's functionality. For example, when a new type of testing equipment appears, a sub-module specifically adapted for its wire storage can be developed and installed on the existing main module, enabling the portable verification device to adapt to new verification tasks, extending the device's service life and application range.

[0038] In one embodiment, the interface module is magnetically and / or snap-fitted to the body.

[0039] In the above solution, if the interface module and the body use magnetic attachment, the installation process becomes extremely simple. When the interface module approaches the mounting slot on the body, the magnetism automatically attracts it into place, eliminating the need for precise alignment and cumbersome operations required by traditional connection methods. The snap-fit ​​connection provides a clear and reliable connection method. During installation, align the corresponding part of the interface module with the snap-fit ​​slot on the body's mounting slot, press or push firmly, and the snap-fit ​​structure will emit a clear "click," informing the user that the connection is complete. This clear feedback allows the user to confirm the reliability of the connection. Disassembly is quick and easy; the snap-fit ​​connection can be easily released. The snap-fit ​​connection is also very user-friendly for first-time users, as the operation is simple and easy to understand, reducing the probability of misoperation.

[0040] When magnetic attraction and snap-fit ​​are used together, the advantages of both are combined. Magnetic attraction enables quick initial positioning and pre-connection of the interface module, making the installation process smoother; snap-fit ​​further enhances the stability of the connection, ensuring that the interface module will not loosen due to external forces such as vibration or shaking during device use. For example, when the device is moved or subjected to a certain degree of impact, the snap-fit ​​structure can effectively prevent the interface module from falling off, ensuring the normal operation of the device.

[0041] A magnetic attraction of appropriate strength ensures that the interface module fits snugly against the machine body under normal use. Even if the device is subjected to slight vibration or shaking, the magnetic force is sufficient to maintain the position of the interface module, preventing it from moving within the mounting slot and ensuring that the wires inside the interface module maintain a good connection with the machine body interface at all times, avoiding interference with calibration work due to poor contact. For example, during vehicle transportation, the device may vibrate due to road bumps; the magnetic connection can effectively cope with this situation and ensure the stability of the device.

[0042] The snap-fit ​​structure has high resistance to external forces and can withstand significant tensile and impact forces. When the device encounters accidental collisions or severe vibrations, the snap-fit ​​structure can secure the interface module, preventing it from easily detaching from the body. For portable calibration devices frequently used in complex environments, the snap-fit ​​provides a reliable guarantee for the connection between the interface module and the body, ensuring the device can operate normally under various harsh conditions.

[0043] Both magnetic and snap-fit ​​structures are relatively easy to repair or replace when damaged. For magnetic components, if the magnetism weakens or is lost, the magnetic material or the entire magnetic assembly can be easily replaced. If snap-fit ​​components are damaged, they can be repaired simply by disassembling and installing a new part. This ease of maintenance reduces the device's maintenance costs, extends its service life, and enables the device to provide stable and long-term service for calibration work.

[0044] The magnetic and snap-fit ​​design reduces excessive wear caused by frequent installation and disassembly. The magnetic connection mitigates wear from mechanical friction to some extent, while a well-designed snap-fit ​​structure can maintain good performance even after multiple openings and closings. This makes the connection between the interface module and the main body more durable, able to withstand long-term use and various complex environments.

[0045] In one embodiment, the mounting groove has a locking member that extends elastically along the insertion direction perpendicular to the interface module, and the outer wall of the interface module has a locking groove that cooperates with the locking member.

[0046] Alternatively, the outer wall of the interface module has a locking member that extends elastically in the radial direction, and the inner wall of the mounting groove has a locking groove that cooperates with the locking member.

[0047] In the above scheme, when the mounting slot has a locking element that extends elastically along the insertion direction perpendicular to the interface module and cooperates with the locking slot on the outer wall of the interface module, this design can be used to remind the interface module when it has moved into place along the insertion direction in the mounting slot.

[0048] Similarly, if a locking element extends elastically radially from the outer wall of the interface module and engages with the locking groove on the inner wall of the mounting slot, it can also serve as a reminder. Additionally, it enhances connection stability and strengthens the connection between the interface module and the chassis.

[0049] When installing the interface module, simply insert it along the mounting slot. When the locking slot aligns with the locking element, the locking element automatically engages with the locking slot due to its elasticity, completing the installation. The operation is simple and quick. For disassembly, apply a certain amount of force to pull out the interface module. This method requires no complicated tools or additional steps, allowing for convenient installation and removal of the interface module even in environments with limited space or inconvenient operation.

[0050] In one embodiment, the wire has a spiral structure, adjacent turns of the wire are connected by magnetic attraction, and one end of the wire is engaged with the socket by a snap-fit.

[0051] In the above solution, the wire has a spiral structure, which allows for the storage of longer wires within a limited compartment space. Compared to straight placement or random winding, the spiral structure is more regular, and the spiral wire can store more wires of different lengths, meeting the wire length requirements in different verification scenarios.

[0052] Adjacent coils are magnetically connected, making the spiral structure more stable and preventing the wires from tangling during storage and use. When the wires need to be taken out or put back, the magnetic attraction keeps them relatively orderly, preventing tangled knots. For example, when storing wires after multiple uses, traditionally haphazardly wrapped wires may take a lot of time to untangle, while magnetically connected spiral wires can be easily reorganized and stored.

[0053] One end of the wire engages with the connector via a snap-fit ​​mechanism, providing a secure and reliable connection. The snap-fit ​​structure can withstand a certain amount of tensile force, ensuring that the wire will not accidentally detach from the connector during use, thus guaranteeing the stability of signal or power transmission between the calibration device and external equipment. For example, during calibration, the wire might be accidentally pulled; with a standard plug-in connection, the wire could easily detach, while the snap-fit ​​mechanism effectively prevents this.

[0054] The snap-fit ​​connection is relatively simple to operate. During installation, simply align one end of the wire with the socket and insert it firmly to complete the connection. To disassemble, simply press or flick the snap-fit ​​unlocking mechanism to easily pull the wire out of the socket. This quick connection and disconnection feature facilitates rapid wire replacement in different calibration tasks, improving work efficiency. For example, when quickly switching between different types of wires for various equipment calibrations, the snap-fit ​​method can save time on wire replacement.

[0055] The snap-fit ​​connection between the wire and the connector allows for quick removal and installation of the old wire and new wire when the wire is damaged or needs to be replaced with a different specification. This replaceability enhances the flexibility of the device to adapt to different verification requirements.

[0056] In one embodiment, the bottom four corners of the body are provided with retractable support feet.

[0057] In the above design, retractable support feet are installed at the four corners of the bottom of the device, enabling the portable calibration device to adapt to various surfaces with varying degrees of flatness. In practical applications, the table or platform on which the device is placed may be uneven. For example, during fieldwork, the ground on which the device is placed may be uneven. The retractable support feet can be adjusted in length to keep the device level, ensuring that it will not shake or tip over during operation due to instability, thereby guaranteeing the accuracy of the calibration work.

[0058] Four retractable support legs are evenly distributed at the four corners of the bottom of the device, distributing the weight of the device evenly. This not only helps to improve the stability of the device, but also reduces localized pressure on the placement surface, preventing damage to fragile surfaces caused by concentrated pressure.

[0059] Different usage scenarios may have different requirements for the device's height. In some cases, the device needs to be placed at a higher position for operation, while in other scenarios, a lower height may be more suitable. With its telescopic support legs, users can easily adjust the overall height of the device to adapt to different work environments. For example, when used in conjunction with other equipment, the device's height can be adjusted for easier connection and operation.

[0060] When the device is not in use, the support legs can be retracted to their shortest position, allowing them to fit snugly against the bottom of the device, reducing the overall space occupied by the device. This is highly advantageous when the device needs to be stored in a small space (such as a toolbox or backpack), improving its portability.

[0061] Retractable support legs prevent damage from collisions during transport. When moving the device, protruding support legs are prone to collisions with other objects, leading to deformation or damage. Retracting the support legs protects them from damage caused by the bottom of the device, extending their lifespan.

[0062] In one embodiment, a heat dissipation structure is provided at the bottom of the body.

[0063] In the above scheme, the portable calibration device generates heat from its internal electronic components during operation. A heat dissipation structure at the bottom of the device effectively dissipates this heat, maintaining the device's internal temperature within a suitable range. Furthermore, the support feet at the bottom of the device elevate it to a certain height, further improving heat dissipation efficiency.

[0064] In one embodiment, the support foot is provided with a suction cup.

[0065] In the above scheme, the support feet are equipped with suction cups, which can enhance the stability of the device on the work platform and prevent the device from moving accidentally during the calibration process.

[0066] In one embodiment, the side wall of the body has a first groove, in which a display is rotatably disposed, and an adjustment mechanism for changing the rotation angle of the display is provided in the first groove.

[0067] In the above design, the monitor rotates and is housed within the first recess, allowing it to be stored away when not in use, protected from physical damage such as collisions and scratches. For example, during device transport, the monitor screen will not be damaged by collisions with other objects, extending its lifespan. This design makes the overall device structure more compact, reducing the space occupied by the protruding monitor. When storing or transporting the device, the compact structure makes it easy to place in containers such as toolboxes and backpacks, improving its portability.

[0068] The adjustment mechanism allows the monitor to rotate at different angles, enabling operators to easily adjust it to the optimal viewing angle based on their position, posture, and lighting conditions. A suitable monitor angle effectively reduces eye strain caused by prolonged screen viewing. During extended calibration work, a comfortable viewing angle helps operators maintain a good working state, improves work quality, and reduces errors caused by eye fatigue. Furthermore, different calibration work scenarios require different monitor angles. When operating in confined spaces, the monitor may need to be rotated to a certain angle for better observation; while during normal desktop operation, it can be adjusted to a comfortable eye level. This flexibility allows the device to adapt to various complex work scenarios and meet diverse operational needs.

[0069] In one embodiment, the adjusting mechanism includes:

[0070] A telescopic rod is disposed in the first groove and located on the back of the display. The telescopic rod has a telescopic end facing the display, and the display is pushed out of the first groove by the telescopic rod.

[0071] A first elastic element is connected to the display, and the first elastic element has an elastic force that drives the display to rotate into the first groove.

[0072] In the above solution, the telescopic rod allows the monitor to be easily pushed out of the first groove, providing operators with a convenient access experience. The elastic force provided by the first elastic element allows the monitor to automatically or easily return to the groove for storage after use, reducing the tedious process of manual storage and improving operational efficiency.

[0073] During the process of the monitor emerging from the groove, the first elastic element continuously provides an elastic force to rotate into the groove. When adjusting the angle, the monitor experiences a moderate resistance. This resistance helps to accurately control the monitor to stay at the required angle position, making it easier to find the best viewing angle under different lighting conditions and operating postures, thus improving the flexibility and comfort of use.

[0074] After the monitor is adjusted to the appropriate angle, the elastic force applied by the first elastic element helps maintain the stability of the monitor angle. Even if the device is subjected to slight vibration or external interference during use, the elastic force can keep the monitor at the set angle, ensuring that the operator can continuously and clearly observe the displayed content without being affected by angle changes, thus ensuring the smooth progress of the verification work.

[0075] The combined design of the telescopic rod and the first elastic element is relatively compact, enabling the display to pop up, retract, and adjust its angle within the limited space of the first recess. This compact structure does not excessively increase the size of the device, helping to maintain the overall small and portable nature of the portable calibration device, making it convenient for operators to carry and use in different scenarios. The telescopic rod is located on the back of the display and set within the first recess. This layout makes full use of the space behind the display and within the recess, avoiding additional space occupation in other parts of the device.

[0076] Meanwhile, the connection between the first elastic element and the display has been rationally designed, so that the entire adjustment mechanism can be effectively integrated into the overall structure of the device without affecting the normal function of the display, thus optimizing the internal spatial layout of the device.

[0077] In one embodiment, the display is connected to the body via a hinge, which is horizontally positioned in the upper region of the first groove.

[0078] In the above design, the monitor is connected to the main body via a hinge horizontally positioned above the first recess. This design allows the monitor to rotate and adjust its tilt angle. Centered on the horizontal hinge, the monitor can rotate up or down within a certain range, providing diverse viewing angles. In environments with complex lighting, operators can flexibly adjust the monitor angle according to the angle of light incidence to avoid glare and ensure clear reading of the displayed content.

[0079] The hinge is located in the upper area of ​​the first recess, making full use of the upper space of the recess. This allows the display to fit more snugly into the recess when stored, reducing additional space occupation. This layout helps maintain the compactness of the overall structure, which is especially beneficial for portable calibration devices, making them easier to carry and operate. For example, the compact design saves space and facilitates storage when placing the device in a small toolbox or backpack.

[0080] The horizontal hinge position allows the monitor to be naturally stored in the recess when not in use, and its front screen is well protected from external impacts and scratches. At the same time, because the hinge is positioned high, the monitor will not interfere with the bottom of the recess or other components during rotation, ensuring smooth angle adjustment.

[0081] The monitor is connected to the main unit via a hinge, providing stable support for the monitor. The horizontally positioned hinge evenly distributes the monitor's weight, ensuring stability during rotation and when the monitor is fixed at a fixed angle. Even if the device is subjected to some vibration during use, the horizontal hinge structure ensures that the monitor will not easily wobble or change angle, guaranteeing the stability of the displayed content and facilitating accurate data reading by the operator.

[0082] In one embodiment, the top of the body has a second groove, and a handle is rotatably disposed in the second groove. The handle has a rotated-out state where it is exposed after rotation, and a hidden state where it is embedded in the second groove after rotation.

[0083] In the above design, when the handle is in the extended position, it provides the operator with a stable and comfortable grip, facilitating the carrying of the portable calibration device. Whether moving the device indoors from one work area to another, or carrying it outdoors to different testing locations, the handle makes the carrying process much easier.

[0084] The handle can be rotated to a hidden position, embedding itself in the second recess, so that the top surface of the device is relatively flat when not being carried. This design is flexible in different scenarios. For example, when the device is placed on a table, the flat top will not obstruct other operations, nor will the protruding handle take up too much space. When it is necessary to carry it, the handle can be quickly rotated out for use.

[0085] With the handle concealed within the recess, the overall appearance of the device is cleaner and more streamlined, enhancing the product's aesthetics. Furthermore, the concealed handle design effectively protects the handle itself; during storage and transportation, the handle is embedded in the recess, reducing the risk of damage from impacts or pressure. For example, when placing the device in a toolbox or transporting it with other equipment, the handle is less likely to break or deform under external forces, extending its lifespan.

[0086] In one embodiment, the handle is connected to a second elastic element, the second elastic element having an elastic force that drives the handle to rotate to the hidden state.

[0087] In the above solution, the second elastic element connected to the handle can drive the handle to automatically rotate to the hidden state, greatly improving the convenience of operation. When the operator finishes using the device and puts it down, there is no need to manually push the handle back into the groove; the handle will quickly and automatically return to the hidden state under the action of elastic force.

[0088] The automatically retractable handle effectively prevents accidental snagging on surrounding objects during device movement or placement. In laboratories or workplaces, various instruments, equipment, cables, and other items may be present, and a protruding handle can easily get caught, causing the device to tip over or damaging the handle. The secondary elastic element ensures the handle retracts promptly, reducing such risks and protecting the device and surrounding objects.

[0089] When the operator rotates the handle out for use, they need to overcome the elastic force of the second elastic element. This resistance provides the operator with clear operational feedback. It allows the operator to clearly perceive that the handle has been securely locked in the rotated-out position, allowing for safe use. Similarly, when the handle is lowered, it quickly returns to its original position under the action of the elastic force, also giving the operator feedback that the operation is complete, enhancing the user's interactive experience with the device.

[0090] Overall, the integration of the second elastic element with the handle optimizes the user experience. The automatic hiding function, operational feedback, and protection for the handle and the device all contribute to a more user-friendly and intelligent design for operators. This experience helps improve user satisfaction and positive perception of the device, especially for long-term users, where these thoughtful design details significantly enhance their work experience.

[0091] The technical solution of this invention has the following advantages:

[0092] 1. Modular design: The interface module is divided into a mother module and sub-modules. The storage compartment is located on the sub-module, and the sub-module is detachably connected to the mother module via a threaded structure. Multiple sub-modules can be installed on the mother module. This design provides greater flexibility, allowing the number of sub-modules to be increased or decreased according to actual needs, thus adjusting the wire storage capacity.

[0093] 2. The wires have a spiral structure, with adjacent coils connected magnetically. This design not only saves storage space but also keeps the wires neat and orderly during storage, preventing tangling. One end of the wire engages with the connector via a snap-fit, facilitating easy disassembly and replacement. Damaged wires can be quickly replaced, improving the maintainability of the device.

[0094] 4. The machine body is equipped with retractable support feet at all four corners of the bottom, which can adjust the height of the device according to the usage scenario. The bottom of the machine body is also equipped with a heat dissipation structure. Together with the support feet, it helps to dissipate the heat generated by the device during operation, ensure the normal operating temperature of the internal electronic components, extend the service life of the device, and improve the stability and reliability of the verification work.

[0095] 5. A display is rotatably mounted within the first groove on the side wall of the machine body, and is equipped with an adjustment mechanism. A telescopic rod can push the display out of the first groove, and a first elastic element provides elastic force to rotate the display back into the groove. Combined with a rotating shaft horizontally positioned in the upper region of the first groove, the rotation angle of the display can be easily changed to meet different viewing angle requirements. For example, when operating the device in different positions and postures, the calibration personnel can adjust the display angle to obtain the best viewing effect.

[0096] 6. A handle is rotatably mounted in the second groove on the top of the device. The handle is connected to a second elastic element, which has an elastic force to drive the handle to a hidden state. When the handle is turned out, it is convenient to carry the device, while when hidden, it is embedded in the second groove, which does not affect the overall appearance of the device and prevents the handle from being bumped or knocked when not in use. Attached Figure Description

[0097] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0098] Figure 1 is a front view of a portable testing device according to one or more embodiments;

[0099] Figure 2 is a side sectional view of the interface module area shown in Figure 1;

[0100] Figure 3 is a side sectional view of the display area shown in Figure 1;

[0101] Figure 4 is a top view of Figure 1.

[0102] Explanation of reference numerals in the attached drawings: 1. Body; 2. Mounting slot; 3. Interface; 4. Interface module; 5. Receiving compartment; 6. Socket; 7. Wire; 8. Plug; 9. Compartment cover; 10. Female module; 11. Sub-module; 12. Locking element; 13. Support foot; 14. Suction cup; 15. First groove; 16. Display; 17. Telescopic rod; 18. Rotating shaft; 19. Second groove; 20. Handle. Detailed Implementation

[0103] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0104] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, 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 the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0105] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0106] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0107] As shown in Figures 1 and 2, this embodiment of the portable calibration device includes: a body 1, an interface module 4, and a wire 7. The body 1 has a mounting slot 2, and the mounting slot 2 contains an interface 3 for connecting the wire 7. The interface module 4 is embedded in the mounting slot 2, and its interior has a receiving compartment 5 for placing the wire 7, with a socket 6 inside. When the interface module 4 is inserted into the mounting slot 2, the socket 6 is aligned with the interface 3 inside the mounting slot 2. The wire 7 is placed in the receiving compartment 5 of the interface module 4, with one end detachably connected to the socket 6, and the other end having a plug 8 for connecting to external devices.

[0108] The portable calibration device provided in this embodiment can neatly store the wire 7 when not in use, avoiding tangling and mess during transport, making it convenient for calibration personnel to carry. When needed, simply remove the wire 7 from the storage compartment 5 and connect the plug 8 to the external device to quickly establish a connection, greatly saving the time required for connecting the device and improving work efficiency.

[0109] As shown in Figure 2, in the portable testing device provided in this embodiment, the interface module 4 has multiple receiving compartments 5, and each receiving compartment 5 has a cover 9 at its opening. The cover 9 prevents the wire 7 from slipping out of the receiving compartment 5 during device movement, ensuring that the wire 7 is always neatly stored within the receiving compartment 5. Of course, the above description is not limiting; in some alternative embodiments, the cover 9 can be omitted.

[0110] As shown in Figure 2, in the portable testing device provided in this embodiment, the compartment cover 9 and the interface module 4 are connected by magnetic attraction and / or snap-fit. Specifically, several small, strong magnets can be embedded in the edge of the compartment cover 9. These magnets are evenly distributed to ensure uniform force when the compartment cover 9 is connected to the interface module 4. For example, neodymium iron boron magnets can be used. Based on the size of the compartment cover 9 and the actual load-bearing requirements, neodymium iron boron magnets with a diameter of 5mm and a thickness of 2mm are selected, and one is embedded every 10cm. At the position of the interface module 4 corresponding to the compartment cover 9, a metal sheet that attracts the magnet is provided. The material can be soft iron to enhance the magnetic attraction effect. The size and shape of the metal sheet are adapted to the corresponding magnet to ensure full contact and generate sufficient attraction. For example, the area of ​​the metal sheet is slightly larger than the cross-sectional area of ​​the magnet, and the thickness is 1mm. When the compartment cover 9 approaches the interface module 4, under the action of magnetic force, the compartment cover 9 automatically attracts and adheres to the interface module 4, completing the connection.

[0111] In addition, in some alternative embodiments, the cover 9 can also be connected to the interface module 4 in other ways, such as screw-on threaded connection, snap-fit ​​connection, etc.

[0112] As shown in Figure 2, in this embodiment, the interface module 4 includes a mother module 10 and a sub-module 11. The sub-module 11 is detachably connected to the mother module 10, and the receiving compartment 5 is disposed on the sub-module 11. This arrangement facilitates the replacement of the sub-module 11. Specifically, both the sub-module 11 and the mother module 10 can be made of high-strength engineering plastic. The sub-module 11 is connected to the mother module 10 via a threaded structure, and the mother module 10 has multiple sub-modules 11. This arrangement allows different wires 7 to be placed in different sub-modules 11. Of course, the above description is not limiting. In some alternative embodiments, the sub-module 11 and the mother module 10 can also be connected by a plug-in and snap-fit ​​joint, and the materials of the sub-module 11 and the mother module 10 can also be other materials, such as metal.

[0113] As shown in Figure 2, in this embodiment, the interface module 4 and the body 1 are connected via magnetic attraction and / or snap-fit. Specifically, a magnetic metal ring can be provided on the inner wall of the mounting slot 2 of the body 1. The magnetic material is neodymium iron boron permanent magnet, which has strong magnetism and good stability. At the same time, a magnetic absorbing piece matching the metal ring is provided at the corresponding position of the interface module 4. The magnetic absorbing piece is made of iron-cobalt-nickel alloy and has good magnetic conductivity. When the interface module 4 is inserted into the mounting slot 2, under the action of magnetic force, the interface module 4 will automatically attract to the metal ring of the mounting slot 2, realizing the connection between the interface module 4 and the mounting slot 2.

[0114] As shown in Figure 2, the mounting groove 2 has a locking member 12 that extends elastically along the insertion direction perpendicular to the interface module 4. The outer wall of the interface module 4 has a locking groove that mates with the locking member 12. This design allows the interface module 4 to be engaged with the locking member 12 after it is inserted into the mounting groove 2. Specifically, the locking member 12 can be a spring-latch structure, consisting of a small spring and a latch. One end of the spring is fixed to the inner wall of the mounting groove 2, and the other end is connected to the latch. The latch is cylindrical with a hemispherical head, facilitating compression and retraction during insertion and removal of the interface module 4. The mounting groove 2 can be made of high-strength ABS engineering plastic to ensure its structural strength. The interface module 4 can be designed as a cuboid, with a locking groove machined on its outer wall corresponding to the position of the locking member 12. The locking groove is hemispherical in shape and of moderate depth, matching the head of the latch. This ensures sufficient locking force after the latch is engaged, without being too deep and affecting the removal of interface module 4. The housing of interface module 4 can be made of high-strength ABS engineering plastic.

[0115] In addition, in some alternative embodiments, a locking member 12 that extends elastically in the radial direction may be provided on the outer wall of the interface module 4, and a locking groove that cooperates with the locking member 12 may be provided on the inner wall of the mounting groove 2.

[0116] When interface module 4 needs to be installed, align interface module 4 with mounting slot 2 and insert it smoothly in the insertion direction. During insertion, the outer wall of interface module 4 presses against the locking tongue, compressing the spring and causing the locking tongue to retract. When the locking slot moves to the locking tongue position, the spring restores its elastic deformation, pushing the locking tongue out and into the locking slot. At this time, interface module 4 is locked in mounting slot 2, realizing the connection with the internal circuit of the host. To remove interface module 4, pull interface module 4 outward with force, pushing the locking tongue to retract and disengage it from the locking slot. Then, interface module 4 can be pulled out of mounting slot 2.

[0117] As shown in Figure 2, in the portable testing device provided in this embodiment, the wire 7 has a spiral structure, and adjacent loops of the wire 7 are magnetically connected. One end of the wire 7 is engaged with the socket 6 via a snap-fit ​​mechanism. The spiral structure of the wire 7 is similar to that of a telephone cord, allowing for the storage of a relatively long wire 7 within the limited space of the storage compartment 5. The magnetic connection between adjacent loops of the wire 7 prevents the wire 7 from tangling during storage and use. The snap-fit ​​mechanism between one end of the wire 7 and the socket 6 ensures that the wire 7 will not accidentally detach from the socket 6 during use and connection. Of course, the above description is not limiting. In some alternative embodiments, the wire 7 can also be made of a foldable material and can be folded and stored in the storage compartment 5 when not in use.

[0118] As shown in Figure 1, in the portable calibration device provided in this embodiment, each of the four bottom corners of the body 1 is equipped with retractable support feet 13. Specifically, each support foot 13 adopts a cylindrical design, can be made of high-strength plastic, and has a hollow internal structure. A support member is provided at the bottom of the support foot 13, and a rubber suction cup 14 is connected to the bottom of the support member to increase the adhesion to the placement surface, prevent slippage, and also provide some shock absorption. A screw-nut transmission method is used. Inside the hollow of the support foot 13 is a nut, and a screw is threaded into the nut. The bottom end of the screw is connected to the support member. When it is necessary to adjust the extension length of the support foot 13, by rotating the support member at the bottom of the support foot 13, since the nut is fixed to the main body of the support foot 13, the screw will move up and down, thereby realizing the extension and retraction of the support member.

[0119] In some alternative embodiments, the suction cup 14 may be omitted. The bottom end of the screw may simply be connected to a support member.

[0120] As shown in Figure 1, in the portable calibration device provided in this embodiment, the bottom of the body 1 is provided with a heat dissipation structure; specifically, the heat dissipation structure can be a base plate with heat dissipation holes. Placing the heat dissipation structure at the bottom does not affect heat dissipation because the bottom is equipped with support feet 13. Furthermore, it is more aesthetically pleasing than placing it in other locations. Of course, the above description is not limiting. In some alternative embodiments, the heat dissipation structure can be omitted or replaced with other structures, such as a liquid cooling channel inside the body 1.

[0121] As shown in Figures 1 and 3, in the portable testing device provided in this embodiment, the side wall of the main body 1 has a first groove 15, and a display 16 is rotatably disposed in the first groove 15. The first groove 15 is provided with an adjustment mechanism for changing the rotation angle of the display 16. With this setting, the display 16 can be stored in the first groove 15 when not in use, avoiding physical damage such as collisions and scratches.

[0122] Specifically, the first groove 15 is located on the front side of the body 1, and the display 16 is connected to the body 1 via a pivot 18. The pivot 18 is horizontally positioned in the upper region within the first groove 15.

[0123] A first elastic element, which may be a torsion spring, is sleeved on the rotating shaft 18 and connected to the display 16. The first elastic element has an elastic force that drives the display 16 to rotate into the first groove 15. The adjustment mechanism includes a telescopic rod 17, which is disposed in the first groove 15 and located on the back of the display 16. The telescopic rod 17 has a telescopic end facing the display 16, and the display 16 is pushed out of the first groove 15 by the telescopic rod 17. The telescopic rod 17 may be an electric push rod, and the telescopic amount is controlled by an operation panel.

[0124] In the retracted state, the display 16 retracts into the first groove 15 under the action of the first elastic member, and the back of the display 16 abuts against the telescopic rod 17. When adjusting the angle of the display 16, the telescopic rod 17 is driven to cause the display 16 to overcome the action of the first elastic member and rotate upward around its axis 18, thereby adjusting the tilt angle of the display 16.

[0125] In addition, in some alternative embodiments, the hinge 18 of the display 16 may be mounted in a manner that allows it to be mounted vertically on the left or right side of the first groove 15 or horizontally connected to the bottom.

[0126] As shown in Figures 1 and 4, in the portable calibration device provided in this embodiment, the top of the body 1 has a second groove 19, and a handle 20 is rotatably disposed within the second groove 19. The handle 20 has a rotated-out state where it is exposed after rotating into the second groove 19, and a hidden state where it is embedded within the second groove 19 after rotating. The handle 20 is connected to a second elastic element, which has an elastic force that drives the handle 20 to rotate to the hidden state. Through the above design, both the portability of the device and the simplicity of its appearance are taken into account. When the device needs to be moved, the handle 20 rotates out for easy gripping by the user; when it is not needed, the handle 20 can be hidden in the second groove 19, making the top surface of the body 1 flat, reducing space occupation, and reducing the risk of collision damage.

[0127] Specifically, the second recess 19 is located at the top center, is rectangular, and has a moderate depth, just enough to accommodate the handle 20 when it is in the concealed state. The inner wall of the recess can be made of smooth plastic material to reduce friction when the handle 20 rotates. The handle 20 can be made of high-strength engineering plastic, with an arc shape that conforms to ergonomic design for easy gripping. Both ends of the handle 20 are rotatably connected to the side walls of the second recess 19 via pivots 18, on which torsion springs are installed. One end of the torsion spring is fixed to the side wall of the recess, and the other end is connected to the handle 20, keeping the handle 20 in the concealed state when no external force is applied. The surface of the handle 20 has an anti-slip texture to increase friction when gripping.

[0128] In some alternative embodiments, the second elastic element can be omitted, and the handle 20 can be hidden within the second groove 19 by gravity alone. Additionally, the handle 20 can also be held in place within the second groove 19 by magnetic attraction.

[0129] In this embodiment of the portable calibration device, when replacing the wire 7, the interface module 4 is removed from the mounting slot 2 of the body 1. If multiple sub-modules 11 are used, the sub-modules 11 can be removed from the mother module 10 by rotating the threaded structure. Then, the wire 7 is placed into the receiving compartment 5 of the sub-module 11, and one end of the guide is inserted into the socket 6 in the receiving compartment 5 to ensure that the wire 7 is tightly connected to the socket 6 and has good contact.

[0130] After inserting wire 7, reinstall submodule 11 onto mother module 10, close the cover 9 of the receiving chamber 5, and ensure that wire 7 is securely placed inside the receiving chamber 5.

[0131] Finally, align the assembled interface module 4 (mother module 10 and daughter module 11) with the mounting slot 2 of the body 1, and embed the interface module 4 into the mounting slot 2 using magnetic attraction and / or snap-fit ​​between the interface module 4 and the body 1. Ensure that the interface module 4 is installed in place and that the wire 7 is electrically connected to the interface 3 in the mounting slot 2 of the body 1.

[0132] In use, the other end of the wire 7 has a plug 8, which is connected to an external device as needed. When connecting an external device, pay attention to the compatibility between the plug 8 and the device interface 3, ensuring that the plug 8 is correctly inserted into the device interface 3 and firmly plugged in, to ensure the stability of signal transmission or power supply.

[0133] After the verification work is completed, first disconnect the wire 7 from the external equipment, then open the receiving compartment 5 of the submodule 11, place the wire 7 in the receiving compartment 5, and close the compartment cover 9.

[0134] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the present invention.

Claims

1. A portable testing device, characterized in that, include: The body (1) has a mounting groove (2) and an interface (3) for connecting wires (7) is provided in the mounting groove (2); An interface module (4) is embedded in the mounting slot (2). The interface module (4) has a receiving compartment (5) for setting wires (7). The receiving compartment (5) has a socket (6). After the interface module (4) is inserted into the mounting slot (2), the socket (6) is opposite to the interface (3). A wire (7) is provided in the receiving compartment (5) of the interface module (4). One end of the wire (7) is detachably connected to the socket (6), and the other end of the wire (7) is provided with a plug (8) for connecting to external devices.

2. The portable testing device according to claim 1, characterized in that, The interface module (4) has multiple storage compartments (5), and each storage compartment (5) has a cover (9) at its opening.

3. The portable testing device according to claim 2, characterized in that, The compartment cover (9) and the interface module (4) are engaged by magnetic attraction and / or snap-fit.

4. The portable testing device according to claim 1, characterized in that, The interface module (4) includes a mother module (10) and a sub-module (11). The sub-module (11) is detachably connected to the mother module (10), and the receiving compartment (5) is disposed on the sub-module (11).

5. The portable testing device according to claim 4, characterized in that, The sub-module (11) is connected to the mother module (10) by a threaded structure, and the mother module (10) has a plurality of the sub-modules (11).

6. The portable testing device according to claim 1, characterized in that, The interface module (4) and the body (1) are connected by magnetic attraction and / or snap-fit.

7. The portable testing device according to claim 6, characterized in that, The mounting groove (2) has a locking member (12) that extends elastically along the insertion direction perpendicular to the interface module (4), and the outer wall of the interface module (4) has a locking groove that cooperates with the locking member (12). Alternatively, the outer wall of the interface module (4) has a locking member (12) that extends elastically in the radial direction, and the inner wall of the mounting groove (2) has a locking groove that cooperates with the locking member (12).

8. The portable testing device according to any one of claims 1-7, characterized in that, The wire (7) has a spiral structure, and adjacent turns of the wire (7) are connected by magnetic attraction. One end of the wire (7) is engaged with the socket (6) by snap-fit.

9. The portable testing device according to any one of claims 1-7, characterized in that, The bottom four corners of the fuselage (1) are provided with retractable support feet (13).

10. The portable testing device according to claim 9, characterized in that, The bottom of the body (1) is provided with a heat dissipation structure.

11. The portable testing device according to claim 9, characterized in that, The support foot (13) is provided with a suction cup (14).

12. The portable testing device according to any one of claims 1-7, characterized in that, The side wall of the body (1) has a first groove (15), in which a display (16) is rotatably disposed, and an adjustment mechanism for changing the rotation angle of the display (16) is provided in the first groove (15).

13. The portable testing device according to claim 12, characterized in that, The adjustment mechanism includes: A telescopic rod (17) is provided in the first groove (15) and located on the back of the display (16). The telescopic rod (17) has a telescopic end facing the display (16). The display (16) is pushed out of the first groove (15) by the telescopic rod (17). A first elastic element is connected to the display (16) and has an elastic force that drives the display (16) to rotate into the first groove (15).

14. The portable testing device according to claim 12, characterized in that, The display (16) is connected to the body (1) via a pivot (18), which is horizontally positioned in the upper region of the first groove (15).

15. The portable testing device according to any one of claims 1-7, characterized in that, The top of the body (1) has a second groove (19), and a handle (20) is rotatably provided in the second groove (19). The handle (20) has a rotated-out state that exposes the second groove (19) after rotation, and also a hidden state that is embedded in the second groove (19) after rotation.

16. The portable testing device according to claim 15, characterized in that, The handle (20) is connected to a second elastic element, which has an elastic force that drives the handle (20) to rotate to the hidden state.

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