A display control terminal test tool

Abstract

The application provides a display control terminal test tool, and relates to the technical field of display control terminal testing.The tool comprises a base and a support frame for supporting the display control terminal.The support frame is hinged to the base, so that the support frame has the freedom of multi-angle adjustment.A plurality of limiting grooves are arranged on the upper surface of the base and spaced apart from each other.One end of a support rod is hinged to the support frame.When the support frame is rotated to different positions relative to the base, the other end of the support rod abuts against different limiting grooves, thereby limiting the different included angles between the support frame and the base, so that the support frame can obtain a high-rigidity locked state at each preset support angle point.The test tool provided by the application not only can provide stable support at multiple angles, but also can maintain high-rigidity fixation when the display control terminal is subjected to loading tests such as vibration and impact, so that the display control terminal does not slip or loosen under various environmental test conditions, thereby significantly improving the convenience, stability and accuracy of the test process.

Description

Technical Field

[0001] This application relates to the field of display and control terminal testing technology, and more specifically, to a display and control terminal testing fixture. Background Technology

[0002] With the continuous development of industrial automation and system integration technologies, display and control terminal equipment is being used more and more widely in various automation systems. Modern display and control terminals not only undertake the tasks of data acquisition and display, but also need to interface with various actuators and monitoring systems, significantly increasing the requirements for their reliability, real-time performance, and human-machine interaction. Before being put into production or use, the adaptability and stability of display and control terminal equipment in various complex environments must be comprehensively verified to ensure that the equipment can operate stably for extended periods under various conditions such as vibration, shock, temperature, and humidity. Therefore, the design and use of dedicated environmental testing fixtures has become an essential means for verifying the performance of display and control terminal equipment in the industry.

[0003] In existing technologies, environmental testing of display and control terminal equipment can be roughly divided into two categories: one is loading tests, such as vibration tests, impact tests, and stress tests. These tests require the equipment to be firmly fixed on the test bench to ensure that it will not shift or loosen during the loading process. The other is non-loading tests, such as high and low temperature cycling and constant temperature and humidity tests. These tests have relatively low requirements for the rigidity of the fixed parts, but require real-time and intuitive observation of the display interface of the equipment, and even acquisition of test data or images from different angles to meet the needs of multi-angle and multi-viewpoint analysis.

[0004] However, most existing environmental testing fixtures are designed with a focus on structural strength, using high-rigidity structures to directly fix the display and control terminal equipment to the test platform, neglecting flexibility and interactivity during the testing process. Although some fixtures do include angle adjustment functionality, insufficient rigidity of the supporting structure means they cannot maintain stable support at the required position after angle conversion, severely impacting testing accuracy and ease of operation. Utility Model Content

[0005] The purpose of this application is to provide a testing fixture for display and control terminals to address the shortcomings of the aforementioned technologies.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] This application provides a test fixture for a display and control terminal, including a base and a support frame for supporting the display and control terminal. A plurality of limiting grooves are spaced apart on the upper surface of the base. The support frame is hinged to the base, and one end of a support rod is hinged to the support frame. The other end of the support rod abuts in different limiting grooves, thereby limiting different included angles between the support frame and the base.

[0008] Furthermore, a receiving groove is provided on the side of the support frame near the base, and the support rod is hinged to the inner wall of the receiving groove. The length of the receiving groove is greater than or equal to the length of the support rod. When the support frame is attached to the base, the support rod is stored in the receiving groove.

[0009] Furthermore, the support frame includes a first side plate, a second side plate, a third side plate, and a fourth side plate that are sequentially arranged to form a first annular support cavity. The bottom of the first side plate is hinged to the base, and at least one of the second and fourth side plates has a support rod hinged to its bottom. The display and control terminal is located around the opening of the first annular support cavity on the side opposite to the base.

[0010] Furthermore, a first limiting plate and a second limiting plate are connected at intervals between the first side plate and the third side plate. The first side plate, the first limiting plate, the third side plate, and the second limiting plate are sequentially arranged to form a second annular support cavity. The display and control terminal is covered on the periphery of the opening of the second annular support cavity on the side away from the base. The position of the first limiting plate and the second limiting plate connecting the first side plate and the third side plate is adjustable so that the second annular support cavity can support display and control terminals of different sizes.

[0011] Furthermore, a third limiting plate is connected between the first limiting plate and the second limiting plate. The first side plate, the first limiting plate, the third limiting plate, and the second limiting plate are sequentially arranged to form a third annular support cavity. The display and control terminal is covered on the periphery of the opening of the third annular support cavity on the side away from the base. The position of the third limiting plate connecting the first limiting plate and the second limiting plate is adjustable so that the third annular support cavity can support display and control terminals of different sizes.

[0012] Furthermore, the base includes several adjacent base plates, which are detachably connected.

[0013] Furthermore, the support frame and the base are connected by hinges.

[0014] Furthermore, shock-absorbing rubber strips are attached to the surface of the support rod.

[0015] Furthermore, handles are provided on one or more sides of the support frame.

[0016] Furthermore, weight-reducing grooves are provided on the support frame and the base.

[0017] The beneficial effects of this application include:

[0018] This application provides a testing fixture for a display and control terminal, including a base and a support frame for supporting the display and control terminal. The support frame is hinged to the base, allowing for multi-degree-of-freedom adjustment. Several limiting grooves are spaced apart on the upper surface of the base. One end of a support rod is hinged to the support frame. When the support frame rotates relative to the base to different positions, the other end of the support rod abuts against different limiting grooves, thereby limiting different angles between the support frame and the base. This ensures that the support frame achieves a high-rigidity locking state at each preset support angle point. The testing fixture provided by this application not only provides stable support at multiple angles but also maintains high-rigidity fixation during vibration, impact, and other loading tests on the display and control terminal, ensuring that the terminal does not slip or loosen under various environmental test conditions. This significantly improves the convenience, stability, and accuracy of the testing process. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of a display and control terminal environment testing fixture provided in this application;

[0021] Figure 2 An exploded view of a display and control terminal environment testing fixture provided in this application;

[0022] Figure 3 One of the structural schematic diagrams of the support frame and base of a display and control terminal environment testing fixture provided in this application when they are attached;

[0023] Figure 4 The second schematic diagram of the structure of the support frame and the base of the display and control terminal environment testing fixture provided in this application;

[0024] Figure 5 The third schematic diagram of the structure of the support frame and the base of the display and control terminal environment testing fixture provided in this application;

[0025] Figure 6 This is a schematic diagram of the structure of a support frame and base of a display and control terminal environment testing fixture provided in this application, when they are at an angle.

[0026] Icons: 1-Base; 1a-Limiting groove; 2-Base plate; 3-Support frame; 4-First side plate; 5-Second side plate; 6-Third side plate; 7-Fourth side plate; 8-First limiting plate; 9-Second limiting plate; 10-Third limiting plate; 11-Support rod; 12-Shock-absorbing rubber strip; 20-Display and control terminal. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. It should be noted that, unless otherwise specified, the various features in the embodiments of this application can be combined with each other, and the combined embodiments are still within the protection scope of this application.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this application, 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, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] The technical solution of this application will be described in detail below with reference to specific embodiments.

[0034] This application provides a testing fixture for a display and control terminal, mainly composed of a base 1 fixed to a test bench and a support frame 3 hinged to the base 1. Figures 1 to 6 As shown, the base 1 is firmly installed on the test bench by bolts or welding, serving as the load-bearing base for the entire fixture; the support frame 3 is used to support the display and control terminal 20, and is connected to the base 1 by hinges or pins, allowing it to rotate freely around the hinge axis. On the side of the support frame 3 near the base 1, at least one support rod 11 is also hinged, one end of which is hinged to the support frame 3 by a pin, and the other end can move freely in space when the support frame 3 rotates.

[0035] like Figure 2 and Figure 3 As shown, to achieve reliable support at multiple angles, the upper surface of the base 1 is provided with several limiting grooves 1a at intervals along the rotation path of the support rod 11 relative to the support frame 3. The width and depth of each limiting groove 1a are precisely matched with the cross-sectional dimensions of the end of the support rod 11 away from the support frame 3, so that the end of the support rod 11 can accurately abut within the groove. In actual use, after adjusting the support frame 3 relative to the base 1 to the required angle, the support rod 11 is rotated relative to the support frame 3 until it aligns with the corresponding limiting groove 1a and inserted into it. The physical constraint of the limiting groove 1a on the support rod 11 ensures that the support frame 3 remains stationary at that angle, thereby providing stable tilt support for the display and control terminal 20 placed on the support frame 3.

[0036] This application utilizes hinges to provide the support frame 3 with multiple degrees of freedom for angle adjustment, while the limiting groove 1a on the base 1 and the support rod 11 form multi-position mechanical limits, enabling it to achieve a high-rigidity locking state at each preset support angle point. When the support rod 11 is not in contact with the limiting groove 1a, it is suspended and does not hinder the rotation of the support frame 3, ensuring the smoothness of the overall adjustment process; when it is in contact with the limiting groove 1a, the vertical and lateral loads are borne by the contact force between the support rod 11 and the groove wall, ensuring the safe fixation of the frame and the display terminal.

[0037] In practical implementation, the hinges between the support frame 3 and the base 1 can be made of high-strength steel pins with lubricated bearings to reduce wear during long-term operation; the limiting groove 1a can be machined on the aluminum alloy or steel plate base 1 by CNC milling to ensure the positioning accuracy of the groove. Rubber or plastic anti-slip pads can be added to the ends of the support rod 11 to increase friction with the groove wall and reduce direct metal-to-metal wear. During use, the operator only needs to quickly rotate the support frame 3 to the required angle and insert the support rod 11 into the corresponding limiting groove 1a to complete the fixation, greatly improving the efficiency of test preparation.

[0038] Overall, this testing fixture not only provides stable support at multiple angles but also maintains high rigidity during vibration and impact load tests on the display and control terminal 20, ensuring that the terminal does not slip or loosen under various environmental testing conditions. Furthermore, the hinge and limiting groove 1a between the frame and base 1 are modularly designed, allowing for customized adjustments and expansion based on display terminals of different sizes and weights, thus achieving a dual improvement in fixture versatility and economy.

[0039] Furthermore, a receiving groove for accommodating the support rod 11 is provided on the side of the support frame 3 near the base 1. The groove extends longitudinally along the bottom wall of the support frame 3, and its length is greater than or equal to the effective length of the support rod 11 in its maximum folded state. The support rod 11 is hinged to the inner wall of one end of the receiving groove via a pin, ensuring that it can swing freely while always remaining aligned with the axis of the receiving groove when the support frame 3 rotates. The cross-sectional dimensions of the receiving groove are closely matched to the shape of the support rod 11, but a slight gap is left, so that after the support rod 11 is retracted into place, it can be firmly locked without being difficult to unfold due to excessive tightening.

[0040] like Figures 4 to 6 As shown, when the support frame 3 is fully fitted with the base 1 and the rotation angle is zero, the support rod 11 can smoothly rotate along the hinge into the receiving slot until it is fully retracted, without the need for additional manual folding or disassembly steps. At this time, the support rod 11 is flush with the outer surface of the support frame 3, does not protrude beyond the frame, and does not interfere with the horizontal placement of the display and control terminal 20, thus ensuring the simple appearance and compact layout of the fixture in the horizontal testing mode.

[0041] Through the ingenious combination of this receiving slot and the support rod 11, this test fixture can be switched to the horizontal placement mode without disassembling any components. Simply reposition the support frame 3 and the support rod 11 will naturally slide into the slot for storage. Compared to the traditional methods of using folding pins, buckles, or manually removing support components, this design greatly simplifies the operation process and significantly improves the efficiency of test preparation and ease of use.

[0042] Furthermore, such as Figures 1 to 4As shown, the support frame 3 is composed of a first side plate 4, a second side plate 5, a third side plate 6, and a fourth side plate 7 arranged sequentially to form a first annular support cavity. The lower opening of the first annular support cavity is closed by the base 1. The closed structure of the base 1 effectively prevents the display and control terminal 20 from accidentally sliding or sinking in the vertical direction, ensuring absolute stability during testing. The upper opening is closed by the display and control terminal 20. The bottom of the first side plate 4 is hinged to the base 1 via a hinge, serving as a connecting side to ensure that the frame can open and close smoothly around a fixed axis. The third side plate 6 is designed as the opening and closing side, facilitating the quick opening or folding of the support frame 3 before and after testing. Support rods 11 are hinged to the receiving grooves at the bottom of the second side plate 5 and the fourth side plate 7, respectively. The ends of these support rods 11 can be inserted into the limiting grooves 1a on the base 1 to achieve stable positioning of the support frame 3 at different angles. Through the close cooperation of the side plate, hinge, support rod 11 and limiting groove 1a, the components can cooperate with each other to complete multi-angle switching and form rigid support at the predetermined position, providing a reliable mechanical basis for multi-condition testing of the display and control terminal 20.

[0043] On the top surface of the support frame 3, threaded mounting holes corresponding to the threaded mounting holes of the display and control terminal 20 are provided on the first side plate 4 to the fourth side plate 7. Users can securely mount the display and control terminal 20 to the periphery of the opening of the annular support cavity using bolts or screws. This top-surface support method not only ensures that the display and control terminal 20 remains firmly attached to the frame under vibration, impact, and other loading test conditions, without displacement or loosening, but also fully exposes the display interface and operation panel of the display and control terminal 20, facilitating real-time observation, debugging, and data acquisition by operators in horizontal or tilted states. It balances the reliability of the display and control terminal 20's fixation with the visualization needs during the testing process, enabling operators to conduct a comprehensive inspection of the display and control terminal 20 from different perspectives, thereby improving the efficiency and accuracy of environmental testing.

[0044] Furthermore, such as Figures 2 to 6 As shown, a first limiting plate 8 and a second limiting plate 9 are connected at intervals between the first side plate 4 and the third side plate 6. These two limiting plates are parallel to the second side plate 5 or the fourth side plate 7 and perpendicularly connected to the first side plate 4 and the third side plate 6. The first side plate 4, the first limiting plate 8, the third side plate 6, and the second limiting plate 9 sequentially enclose a second annular support cavity. The lower opening of the second annular support cavity is closed by the base 1. The display and control terminal 20 is firmly attached to the upper opening edge of the second annular support cavity by bolts or screws, thus supporting the display and control terminal 20. The positions of the first limiting plate 8 and the second limiting plate 9 can be flexibly adjusted according to the terminal size, and can be adapted to various specifications of display and control terminals 20 without replacing the overall frame.

[0045] Specifically, multiple sets of mounting slots are provided on the inner surfaces of the first side plate 4 and the third side plate 6, with the spacing between each set of slots pre-set according to the standard dimensions of common display and control terminals 20. The ends of the first limiting plate 8 and the second limiting plate 9 can be quickly inserted into any set of mounting slots via sliding parts or snap-fit ​​mechanisms and secured with matching locking bolts. To change positions, simply loosen the locking bolts at both ends of the limiting plate, move to another set of mounting slots, and then retighten the bolts. This solution eliminates the time-consuming traditional disassembly and assembly process and ensures that the limiting plates do not loosen or shift under high load or strong vibration conditions. To meet the installation requirements of different display and control terminals 20, the first limiting plate 8 and the second limiting plate 9 also have multiple pre-set threaded mounting holes that match the threaded holes at the bottom of the display and control terminal 20. Technicians can select the appropriate mounting hole positions to arrange bolts according to the actual threaded hole positions of the display and control terminal 20, achieving precise bidirectional positioning in both the horizontal and vertical directions.

[0046] Furthermore, the placement of the first limiting plate 8 and the second limiting plate 9 not only expands the adaptability of the support frame 3 but also significantly improves the torsional stiffness of the entire support frame 3. The parallel beam support formed between the two limiting plates and the first side plate 4 and the third side plate 6 effectively resists the lateral or torsional moments that may be generated during the installation, disassembly, and testing of the display and control terminal 20, thereby improving the overall structural stability and durability of the tooling. This adjustable limiting cavity design takes into account versatility, reliability, and simplicity, enabling rapid replacement and efficient testing of display and control terminals 20 of various specifications, significantly improving environmental adaptability and testing efficiency.

[0047] Furthermore, such as Figures 2 to 6 As shown, a third limiting plate 10 is connected between the first limiting plate 8 and the second limiting plate 9. The third limiting plate 10 is perpendicular to the first limiting plate 8 and the second limiting plate 9, and is connected to them by a sliding groove, bolts, or a snap-fit ​​mechanism, so that the first side plate 4, the first limiting plate 8, the third limiting plate 10, and the second limiting plate 9 are sequentially enclosed to form a three-dimensional support space with a lower opening closed by the base 1 and an upper opening exposed. The display and control terminal 20 is fixed to the upper opening edge of the third annular support cavity by bolts or screws. It should be understood that the connection positions of the first limiting plate 8, the second limiting plate 9, and the third limiting plate 10 to the support frame 3 or the base 1 should not affect their connection to the display and control terminal 20.

[0048] By adding a position-adjustable third limiting plate 10 to the existing unidirectional adjustable second annular support cavity, the display and control terminal 20 can be adapted to changes in size in two orthogonal directions simultaneously. The first limiting plate 8 and the second limiting plate 9 could originally only adjust the size adaptation range of the display and control terminal 20 in the left-right direction, while the newly added third limiting plate 10 forms a limiting surface in the front-back direction, thus enabling simultaneous adaptation of display and control terminals 20 of different sizes in both directions, improving the adaptability and expandability of the testing fixture.

[0049] It should be noted that the third limiting plate 10 is not only flexibly adjustable in position, but its panel size can also be adaptively adjusted according to testing requirements. First, the effective width of the third limiting plate 10 in the left-right direction is determined by the distance between the first limiting plate 8 and the second limiting plate 9: when the two limiting plates slide inward or outward to a new mounting slot, the width of the third limiting plate 10 must increase or decrease accordingly to ensure a tight fit with both. Second, the size or position adjustment of the third limiting plate 10 in the front-back direction is entirely based on the front-back dimensions of the display and control terminal 20 being tested. Simultaneously, the third limiting plate 10 itself is also equipped with multiple sets of threaded holes that match the threaded mounting holes of the display and control terminal 20, thus achieving precise support and positioning in both the left-right and front-back directions.

[0050] Furthermore, such as Figure 2 As shown, the base 1 includes several base plates 2. Each pair of adjacent base plates 2 can be quickly assembled and disassembled by bolts and positioning pins. This modular design not only meets the flexible combination requirements of different widths and load-bearing capacities, but also allows for the separate transportation and on-site assembly of the base 1 within a limited space. The first side plate 4, the second side plate 5, the third side plate 6, and the fourth side plate 7 also adopt a detachable connection structure. Each side plate is positioned by the flange and groove structure on the edge, and is equipped with bolt connections or quick-release buckles for quick assembly and disassembly. This modular side plate design allows users to increase or decrease the number of side plates or change the type of side plates (e.g., side plates with larger mounting holes) according to the shape and outline of the display and control terminal 20 under test or the testing requirements, thereby flexibly adapting to display and control terminals 20 of various sizes and shapes.

[0051] Furthermore, such as Figure 2As shown, a shock-absorbing rubber strip 12 is attached to the surface of the support rod 11. When the support frame 3 is reset and attached to the base 1, the support rod 11 naturally slides into the corresponding receiving groove and is firmly locked in the groove due to the pressing friction between the shock-absorbing rubber strip 12 and the groove wall. Specifically, the rigid contact between the support rod 11 and the receiving groove is changed to an elastic contact. With the help of the elastic deformation and adhesion characteristics of the shock-absorbing rubber strip 12, a buffer layer with a damping effect is formed between the groove wall and the support rod 11. When the display and control terminal 20 generates slight vertical vibrations during vibration or impact testing, these vibration energy will first act on the shock-absorbing rubber strip 12 and dissipate in the form of deformation energy inside the rubber, greatly reducing the vertical vibration or rebound that may be caused by insufficient stiffness of the support rod 11 itself. This structure not only ensures the reliable positioning of the support rod 11 when it is unfolded for use, but also prevents the support rod 11 from generating any unnecessary shaking in the receiving groove due to external forces when it is stored. The material of the shock-absorbing rubber strip 12 can be a synthetic rubber with high resilience and damping characteristics. Its cross-sectional size is slightly larger than the width of the receiving groove. By slightly pre-tightening, the shock-absorbing rubber strip 12 continuously presses against the groove wall, which not only avoids the support rod 11 from becoming loose in the stored state, but also enables the shock-absorbing rubber strip 12 to efficiently absorb the micro-vibration energy generated between the support rod 11 and the receiving groove.

[0052] Furthermore, torsion springs are provided at the connection points between the second side plate 5 and the fourth side plate 7 and the support rod 11, and the torsion springs bear torsional loads in the initial state. Thus, regardless of the angle of the support frame 3, the torsion springs always maintain a certain torsional load, allowing the support rod 11 to quickly and smoothly return to the predetermined storage position or initial angle after the limiting groove 1a is released, thereby greatly simplifying the operation steps and improving reliability.

[0053] Furthermore, handles are provided on the second side plate 5 and the fourth side plate 7 of the support frame 3, which allows the operator to obtain better grip torque when adjusting the angle of the support frame 3, reducing hand slippage and fatigue. When space or working conditions require, a single handle can also be provided on the third side plate 6 to accommodate rotational pulling needs in different directions. The handles are positioned at a certain distance from the hinge axis of the support frame 3, so that when hand force is applied, the leverage effect between the handle and the frame can easily overcome the hinge friction and the initial preload of the support rod 11, ensuring smooth and reliable adjustment.

[0054] The handles can be ergonomically designed with a ring or "T" shaped cross-section. Their rod diameter and curve design are based on grip comfort tests, balancing strength, weight, and grip comfort. In the single-handle configuration on the third side plate 6, the handle should be positioned at the center height of the side plate to keep the wrist in a natural position when pulling or pushing. In the double-handle configuration, the handles on the second side plate 5 and the fourth side plate 7 should be symmetrically positioned and at the same height to ensure that simultaneous force from both hands will not cause torsional distortion of the support frame 3.

[0055] Furthermore, such as Figures 1 to 6 As shown, weight-reducing grooves are provided on the support frame 3 and the base 1. These grooves are typically distributed in a regular, perforated structure in the non-load-bearing areas of the side plates and base plate 2, ensuring overall rigidity and strength while significantly reducing material usage and component weight. When the entire fixture needs to be handled, disassembled, or transferred between workshops, the lightweight advantage provided by the weight-reducing grooves can significantly reduce the operator's workload and lower logistics costs and load requirements on the test bench. Furthermore, the weight-reducing groove design of the base 1 should ensure that the remaining sheet metal structure maintains sufficient stability and flatness when subjected to vertical loads and horizontal pushing and pulling forces, preventing deformation or resonance problems caused by excessive holes.

[0056] It should be noted that the weight-reducing grooves of the second side panel 5 and the fourth side panel 7 can also be designed to be wider than the average hand width of an adult with their thumb and little finger spread apart. This "two-in-one" design not only achieves lightweighting of the materials but also eliminates the component cost and processing steps of installing a separate handle. When the operator needs to adjust the angle of the support frame 3 or disassemble the side panels, they only need to insert their hand into the groove to obtain a grip and torque transmission effect comparable to a traditional handle. The inner edges and bottom surface of the handle groove are rounded and chamfered with an anti-slip textured coating to ensure sufficient friction and comfort even when hands are wet or when operating with gloves.

[0057] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A testing fixture for a display and control terminal, characterized in that, The device includes a base and a support frame for supporting a display and control terminal. Several limiting grooves are spaced apart on the upper surface of the base. The support frame is hinged to the base, and one end of a support rod is hinged to the support frame. The other end of the support rod abuts in different limiting grooves, thereby limiting different included angles between the support frame and the base.

2. The display and control terminal testing fixture according to claim 1, characterized in that, A receiving groove is provided on the side of the support frame near the base. The support rod is hinged to the inner wall of the receiving groove. The length of the receiving groove is greater than or equal to the length of the support rod. When the support frame is attached to the base, the support rod is housed in the receiving groove.

3. The display and control terminal testing fixture according to claim 1 or 2, characterized in that, The support frame includes a first side plate, a second side plate, a third side plate, and a fourth side plate that are sequentially arranged to form a first annular support cavity. The bottom of the first side plate is hinged to the base. At least one of the second side plate and the fourth side plate has the support rod hinged to its bottom. The display and control terminal is located around the opening of the first annular support cavity on the side opposite to the base.

4. The display and control terminal testing fixture according to claim 3, characterized in that, A first limiting plate and a second limiting plate are connected at an interval between the first side plate and the third side plate. The first side plate, the first limiting plate, the third side plate, and the second limiting plate are sequentially arranged to form a second annular support cavity. The display and control terminal is covered on the periphery of the opening of the second annular support cavity on the side opposite to the base. The positions of the first limiting plate and the second limiting plate connecting the first side plate and the third side plate are adjustable so that the second annular support cavity can support display and control terminals of different sizes.

5. The display and control terminal testing fixture according to claim 4, characterized in that, A third limiting plate is connected between the first limiting plate and the second limiting plate. The first side plate, the first limiting plate, the third limiting plate and the second limiting plate are sequentially arranged to form a third annular support cavity. The display and control terminal is covered on the periphery of the opening of the third annular support cavity on the side away from the base. The position of the third limiting plate connecting the first limiting plate and the second limiting plate is adjustable, so that the third annular support cavity can support display and control terminals of different sizes.

6. The display and control terminal testing fixture according to claim 1 or 2, characterized in that, The base includes several adjacent base plates, which are detachably connected.

7. The display and control terminal testing fixture according to claim 1 or 2, characterized in that, The support frame is connected to the base via hinges.

8. The display and control terminal testing fixture according to claim 1 or 2, characterized in that, Shock-absorbing rubber strips are attached to the surface of the support rod.

9. The display and control terminal testing fixture according to claim 1 or 2, characterized in that, Handles are provided on one or more sides of the support frame.

10. The display and control terminal testing fixture according to claim 1 or 2, characterized in that, Weight reduction grooves are provided on the support frame and the base.

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