Vehicle door test tool

Abstract

The invention provides a vehicle door test tool, and relates to the technical field of automobile manufacturing. The vehicle door test tool comprises a rack assembly, the rack assembly comprises a frame body and a supporting part, and at least part of the supporting part is connected with the frame body; the vehicle door assembly at least comprises a vehicle door body, one side of the vehicle door body is connected with one side of the frame body in a relatively rotating mode, and the vehicle door body is provided with a covering position for simulating that the vehicle door is in a closed state and an opening position for simulating that the vehicle door is in an open state; and the test mechanism assembly at least comprises a power mechanism, the power mechanism is connected with the vehicle door body, and the power mechanism is used for driving the vehicle door body to be switched between the covering position and the opening position so as to carry out fatigue strength test on the vehicle door body. According to the scheme, the problems of long vehicle door fatigue strength verification period, high cost and poor effect in the prior art are solved.

Description

Technical Field

[0001] This invention relates to the field of automobile manufacturing technology, and more specifically, to a door testing fixture. Background Technology

[0002] With the rapid development of tourism and passenger transport, highway buses are constantly improving in terms of comfort, and the requirements for the comfort of opening and closing doors and the quality of door surfaces are also increasing. However, due to the instability of the manufacturing precision and mechanical properties of the door gas struts, the doors are prone to excessive or insufficient opening and closing force. In winter, the doors may not be able to spring back to the maximum opening position using the gas struts. Furthermore, the constant opening and closing of the doors can lead to fatigue damage such as small cracks on the outer surface, affecting the appearance quality of the doors. Currently, major bus manufacturers typically design bus doors based on experience and then verify them on actual vehicles. This verification process is lengthy, prone to batch problems, and costly. Additionally, because durability issues cannot be verified, problems can only be discovered in batch orders, resulting in a higher claim rate.

[0003] There is currently no effective solution to the aforementioned technical problems. Summary of the Invention

[0004] The main objective of this invention is to provide a vehicle door testing fixture to solve the problems of long testing cycles, high costs, and poor results in the existing technology for verifying the fatigue strength of vehicle doors.

[0005] To achieve the above objectives, according to one aspect of the present invention, a vehicle door testing fixture is provided, comprising: a bench assembly including a frame body and a support portion, at least a portion of the support portion being connected to the frame body; a vehicle door assembly including at least a vehicle door body, one side of the vehicle door body being rotatably connected to one side of the frame body, the vehicle door body having a closed position simulating a closed state, and an open position simulating an open state; and a testing mechanism assembly including at least a power mechanism connected to the vehicle door body, the power mechanism being used to drive the vehicle door body to switch between the closed position and the open position to perform a fatigue strength test on the vehicle door body.

[0006] Furthermore, the door assembly also includes a gas strut, one end of which is movably connected to the door body and the other end of which is movably connected to the frame body. The gas strut has a first position located on one side of the door body and a second position partially located on the other side of the door body. When the door body is in the closed position, the gas strut is in the first position, and when the door body is in the open position, a portion of the gas strut is in the second position.

[0007] Furthermore, the door testing fixture also includes a connecting mechanism, which includes: a first connector connected to the door body, the first connector having a first groove, one end of the gas strut being slidably disposed in the first groove; and a second connector connected to the frame body, the second connector having a second groove, the other end of the gas strut being slidably disposed in the second groove; wherein, the first groove is parallel to the width direction of the door body, the second groove is parallel to the width direction of the frame body, and when the door body is in the open position, there is an angle between the door body and the frame body.

[0008] Furthermore, the second connector is fixedly connected to the frame body, while the first connector is detachably connected to the door body.

[0009] Furthermore, the gas strut includes: a movable section, of which there are two movable sections, one movable section being movably disposed in a first slide groove and the other movable section being movably disposed in a second slide groove; and a support section, the two ends of which are respectively connected to a movable section, the support section being used to provide at least part of the support force between the door body and the frame body.

[0010] Furthermore, the door body has a fully open limit position. When the door body is in the limit position, the movable section in the first slide groove abuts against the bottom end of the first slide groove, and the other movable section in the second slide groove abuts against the top end of the second slide groove. Alternatively, when the door body is in the closed position, the movable section in the first slide groove abuts against the top end of the first slide groove, and the other movable section in the second slide groove abuts against the bottom end of the second slide groove. The bottom end of the second slide groove is the end closest to the ground, and when the door body is in the closed position, the bottom end of the first slide groove is the end closest to the ground.

[0011] Furthermore, when the door body is in the extreme open position, there is an angle α between the frame body and the door body, where 105°≤α≤135°.

[0012] Furthermore, the door testing fixture also includes a sealing mechanism, which includes a sealing strip. The sealing strip extends circumferentially along the door body and is disposed on the door body, or the sealing strip extends circumferentially along the frame body and is disposed on the frame body. The sealing strip is at least used to fill the gap between the door body and the frame body.

[0013] Furthermore, the sealing mechanism also includes a mating component, which extends circumferentially along the door body or the frame body. The mating component is disposed on one of the door body or the frame body, and the sealing strip is disposed on the other of the door body or the frame body. The mating component is used to mate and connect with the sealing strip.

[0014] Furthermore, the test mechanism assembly also includes a control mechanism, which is electrically connected to the power mechanism. The control mechanism is used to control the movement of the power mechanism, thereby controlling the movement of the door body.

[0015] By applying the technical solution of this invention, the door body can be specifically fitted onto the frame body, with one side of the door body rotatably connected to the frame body. This allows the door body to have a closed position covering the frame body and an open position that can be rotated at a certain angle, simulating the opening and closing of a car door. Furthermore, by setting up a test mechanism assembly connected to the door body via a power mechanism, the power mechanism can drive the door body to rotate, switching between the open and closed positions, thereby enabling fatigue testing of the door body to verify its quality. Statistical data from the test results can also be used to obtain the optimal placement positions of various components on the door body. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of a first embodiment of the door testing fixture according to the present invention is shown;

[0018] Figure 2 A schematic diagram of a door assembly according to an embodiment of the present invention is shown;

[0019] Figure 3 A schematic diagram of a second embodiment of the door testing fixture according to the present invention is shown;

[0020] Figure 4 It shows Figure 3 Enlarged diagram of point A in the middle.

[0021] The above figures include the following reference numerals:

[0022] 10. Bench assembly;

[0023] 11. Framework body;

[0024] 12. Support section;

[0025] 20. Door assembly;

[0026] 21. The car door itself;

[0027] 22. Gas strut;

[0028] 221. Activity Section;

[0029] 222. Support section;

[0030] 30. Test mechanism assembly;

[0031] 31. Power mechanism;

[0032] 40. Connecting mechanism;

[0033] 41. First connector;

[0034] 410. First chute;

[0035] 42. Second connecting component;

[0036] 420. Second chute;

[0037] 50. Sealing mechanism;

[0038] 51. Sealing strip;

[0039] 52. Fitting parts. Detailed Implementation

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0042] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0043] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0044] Combination Figures 1 to 4 As shown in the specific embodiment of this application, a door testing fixture is provided.

[0045] Specifically, such as Figures 1 to 3 As shown, the door testing fixture includes a bench assembly 10, a door assembly 20, and a testing mechanism assembly 30. The bench assembly 10 includes a frame body 11 and a support portion 12, with at least a portion of the support portion 12 connected to the frame body 11. The door assembly 20 includes at least a door body 21, one side of which is rotatably connected to one side of the frame body 11. The door body 21 has a closed position simulating a closed door and an open position simulating an open door. The testing mechanism assembly 30 includes at least a power mechanism 31 connected to the door body 21. The power mechanism 31 is used to drive the door body 21 to switch between the closed and open positions to perform fatigue strength tests on the door body 21.

[0046] By applying the technical solution of this embodiment, the door body 21 can be specifically fitted onto the frame body 11. One side of the door body 21 is rotatably connected to the frame body 11, allowing the door body 21 to have a closed position covering the frame body 11 and an open position that can be rotated at a certain angle, thus simulating the opening and closing of a car door. Furthermore, by setting up a test mechanism assembly 30, which is connected to the door body 21 via a power mechanism 31, the power mechanism 31 can drive the door body 21 to rotate, switching between the open and closed positions, thereby enabling fatigue testing of the door body 21 to verify its quality. Statistical data from the test results can also be used to obtain the optimal placement positions of each component on the door body 21.

[0047] It should be noted that the test bench assembly 10 only requires a support part 12 to support the frame body 11 and the door assembly 20. The overall structure is not complex, making the test bench assembly 10 easy to move. It eliminates the need to place the test bench assembly 10 and the door assembly 20 in a specific cryogenic chamber or other environment to simulate and verify the door performance outside the engine compartment. In use, the test bench assembly 10 can simply be placed in an outdoor environment, making it convenient to use, simple in structure, and with low testing costs.

[0048] Specifically, such as Figure 3 , Figure 4 As shown, the door assembly 20 also includes a gas strut 22. One end of the gas strut 22 is movably connected to the door body 21, and the other end of the gas strut 22 is movably connected to the frame body 11. The gas strut 22 has a first position located on one side of the door body 21 and a second position partially located on the other side of the door body 21. When the door body 21 is in the closed position, the gas strut 22 is in the first position, and when the door body 21 is in the open position, a portion of the gas strut 22 is in the second position. The door body 21 and the frame body 11 are supported and opened by a gas strut 22. Both ends of the gas strut 22 are slidably connected to both the frame body 11 and the door body 21. When the door body 21 is in the closed position, the gas strut 22 is in the first position, tightly fitted to one side of the door body 21, ensuring the door's sealing and stability. When the door body 21 moves from the closed position to the open position, the gas strut 22 transitions from the first position to the second position. At this time, part of the gas strut 22 extends to the other side of the door body 21, generating support force to assist the door body 21 in smoothly opening to its maximum angle and maintaining its stability. Through continuous opening and closing fatigue tests on the door body 21, the position of the gas strut 22 can be adjusted to ensure that the opening force of the door body 21 is moderate under different temperature conditions, especially in low-temperature winter environments, preventing opening difficulties caused by temperature changes in the gas strut 22.

[0049] It should be noted that the gas strut 22 can also be made of hydraulic rods, cylinders or other mechanisms to adapt to different vehicle models or different environments and enhance the versatility of the test bench.

[0050] Furthermore, such as Figure 4As shown, the door testing fixture also includes a connecting mechanism 40, which includes a first connecting member 41 and a second connecting member 42. The first connecting member 41 is connected to the door body 21, and a first groove 410 is provided on the first connecting member 41. One end of the gas strut 22 is slidably disposed in the first groove 410. The second connecting member 42 is connected to the frame body 11, and a second groove 420 is provided on the second connecting member 42. The other end of the gas strut 22 is slidably disposed in the second groove 420. The first groove 410 is parallel to the width direction of the door body 21, and the second groove 420 is parallel to the width direction of the frame body 11. When the door body 21 is in the open position, there is an angle between the door body 21 and the frame body 11. The first slide rail 410 is parallel to the width direction of the door body 21, allowing the gas strut 22 to slide within the first slide rail 410 according to the opening angle of the door body 21, thus maintaining optimal support for the door body 21. The second slide rail 420 is also parallel to the width direction of the frame body 11, ensuring that the gas strut 22 can slide smoothly along the second slide rail 420 during door opening without being restricted by the frame body 11, thereby achieving smooth opening of the door body 21. When the door body 21 moves from the closed position to the open position, an angle is formed between the door body 21 and the frame body 11. The gas strut 22 automatically adjusts its support angle by sliding within the first and second slide rails 410 and 420, ensuring smooth door opening and sealing when closed. This improves the flexibility and adaptability of the door test bench and allows the support position of the gas strut 22 to be fine-tuned according to the door's design and performance requirements, achieving optimal opening and closing comfort and reliability. By combining the characteristics of the connecting mechanism 40 (including the first connecting member 41 and the second connecting member 42) with the gas strut 22, the door test bench can more accurately simulate the mechanical characteristics of the door in actual use, thereby effectively evaluating and optimizing the performance of the door during the design stage and reducing potential failures and maintenance costs in subsequent practical applications.

[0051] Furthermore, the second connector 42 is fixedly connected to the frame body 11, while the first connector 41 is detachably connected to the door body 21. The fixed connection between the second connector 42 and the frame body 11 ensures the stable position of the second slide groove 420 relative to the frame body 11, providing a stable support point for the gas strut 22. The detachable connection between the first connector 41 and the door body 21 allows for quick replacement of the first connector 41 according to different door models or specific testing requirements, and even adjustment of the position of the first slide groove 410 to match various door sizes and shapes. Through the detachable connection of the first connector 41 and the fixed connection of the second connector 42, coupled with the sliding capability of the gas strut 22 within the two slide grooves, the door testing fixture of this invention can efficiently and accurately simulate and test the opening and closing performance of the door under various conditions, facilitating the determination of the optimal position of the second connector 42 by the operator, thus enabling the determination of the optimal placement of the gas strut 22.

[0052] Preferably, the second connector 42 is welded to the frame body 11, and the first connector 41 is screwed to the door body 21.

[0053] Furthermore, such as Figure 4 As shown, the gas strut 22 includes a movable section 221 and a support section 222. There are two movable sections 221: one movably disposed within a first groove 410, and the other movably disposed within a second groove 420. The two ends of the support section 222 are connected to one of the movable sections 221 respectively. The support section 222 provides at least partial support between the door body 21 and the frame body 11. The movable section 221 can slide within the groove, allowing the gas strut 22 to automatically adapt to the changing angle between the door and the frame during the opening and closing of the door body 21. This ensures that the gas strut 22 maintains optimal mechanical strength in any position. The support section 222 provides auxiliary support to the door when it is opened to a certain angle. The sliding capability of the movable section 221 ensures that the gas strut 22 can smoothly adjust its position during the opening of the door, avoiding mechanical mismatch problems caused by fixed connection. The support section 222 is responsible for transmitting force, and its design flexibility also provides a wider range of parameter adjustment space for the test, enabling the test fixture to adapt to the testing needs of different vehicle models, different door designs and different gas strut 22 specifications.

[0054] Furthermore, the door body 21 has a fully open limit position. When the door body 21 is in the limit position, the movable segment 221 in the first slide groove 410 abuts against the bottom end of the first slide groove 410, and the other movable segment 221 in the second slide groove 420 abuts against the top end of the second slide groove 420. Alternatively, when the door body 21 is in the closed position, the movable segment 221 in the first slide groove 410 abuts against the top end of the first slide groove 410, and the other movable segment 221 in the second slide groove 420 abuts against the bottom end of the second slide groove 420. The bottom end of the second slide groove 420 is the end closest to the ground, and when the door body 21 is in the closed position, the bottom end of the first slide groove 410 is the end closest to the ground. When the door body 21 is in its fully open, limit-open position, the abutting state of the end of the movable section 221 corresponding to the slide groove ensures that the gas strut 22 can provide maximum support force, keeping the door body 21 stably in the limit-open position and preventing accidental closure due to external factors (such as wind or gravity). This also simulates the mechanical performance of the door under extreme usage conditions. When the door body 21 is in the closed position, the movable section 221 slides within the slide groove to the abutting state at the other end, ensuring that the gas strut 22 can provide the necessary support force when the door is closed.

[0055] In one embodiment of this application, when the door body 21 is in its extreme open position, there is an angle α between the frame body 11 and the door body 21, wherein 105°≤α≤135°. The angle α formed by the support section 222 of the gas strut 22 with the door body 21 and the frame body 11 falls between 105° and 135°, ensuring that the gas strut 22 is in its optimal working state, which can effectively prevent the door from suddenly closing under the influence of external factors such as strong winds.

[0056] Furthermore, such as Figure 1 , Figure 2As shown, the door testing fixture also includes a sealing mechanism 50, which includes a sealing strip 51. The sealing strip 51 extends circumferentially along the door body 21 and is disposed on the door body 21, or it extends circumferentially along the frame body 11 and is disposed on the frame body 11. The sealing strip 51 is used to fill the gap between the door body 21 and the frame body 11. The sealing strip 51 can fill the gap between the door body 21 and the frame body 11, preventing external environmental factors (such as wind, water, dust, etc.) from entering the vehicle, while also reducing noise during the opening and closing of the door, improving the quietness and comfort of the cabin. When the door body 21 is in the closed position, the sealing strip 51 is tightly fitted against the corresponding edge of the frame body 11, forming an effective sealing barrier to prevent the intrusion of external substances. When the door body 21 is in the open position, the flexible nature of the sealing strip 51 allows it to deform with the movement of the door, maintaining the continuity and tightness of its contact surface with the frame body 11, and ensuring that the sealing effect between the door body 21 and the frame body 11 is not affected when the door is open.

[0057] In one exemplary embodiment of this application, the sealing mechanism 50 further includes a mating member 52, which extends circumferentially along the door body 21 or the frame body 11. The mating member 52 is disposed on one of the door body 21 or the frame body 11, and the sealing strip 51 is disposed on the other of the door body 21 or the frame body 11. The mating member 52 is used to mate with the sealing strip 51. The mating member 52 extends circumferentially along the door body 21 or the frame body 11, and its installation position corresponds to the sealing strip 51, but it is disposed on the other surface of the door body 21 or the frame body 11. The shape and material of the mating member 52 must match the sealing strip 51 to form an effective sealing connection. The mating connection between the mating member 52 and the sealing strip 51 can form a sealing layer between the door body 21 and the frame body 11 to avoid mutual influence between the external environment and the internal environment of the door.

[0058] Furthermore, the test assembly 30 also includes a control mechanism electrically connected to the power mechanism 31. The control mechanism controls the movement of the power mechanism 31, thereby controlling the movement of the door body 21. The control mechanism is an intelligent control system, comprising components such as an electronic controller, sensor network, and feedback loop. It receives commands from the operator or automatic control system and converts them into operating signals for the power mechanism 31. By analyzing real-time data collected by sensors, such as the position information of the door body 21, the stress state of the gas strut 22, and the compression degree of the sealing strip 51, the control mechanism controls the power mechanism 31 to perform the opening or closing action of the door with optimal speed and force. The use of this control mechanism improves the automation level and testing accuracy of the test fixture, enabling long-term repeated testing without manual intervention.

[0059] This application also provides a preferred embodiment of a vehicle door testing fixture, which can assist in the selection and support arrangement of the door gas strut 22 during the design phase. The test bench assembly 10 is easy to move and does not require a cryogenic chamber.

[0060] Specifically, the door testing fixture includes a bench assembly 10, a door assembly 20, a hinge, a hinge back plate, a gas strut 22, a connecting mechanism 40, a sealing mechanism 50, and a power mechanism 31. One end of the hinge is hinged to the door assembly 20 via a hinge shaft sleeve, allowing the door assembly 20 to rotate freely around the hinge shaft. The other end is bolted to the hinge back plate and mounted on a hinge mounting plate. One end of the gas strut 22 is connected to the door body 21 via a first connector 41, and the other end is connected to the frame body 11 via a second connector 42. One end of the first connector 41 is screwed to fix the gas strut 22, and the other end is screwed to fix it to the frame of the door body 21. The first connector 41 has a first groove 410 with an elongated hole to facilitate adjustment of the support position of the gas strut 22 to find the optimal placement point. The sealing strip 51 is snapped onto the mating part 52 of the frame body 11 for sealing and buffering the door body 21. The power mechanism 31 can cyclically open and close the door assembly 20 to verify the fatigue strength of the door.

[0061] As can be seen from the above description, the door testing fixture in the above embodiments has the following beneficial effects:

[0062] The door testing fixture assists in the selection and support arrangement of the door gas strut 22 during the design phase. The lightweight test bench assembly 10 is easy to move and does not require a cryogenic chamber, allowing for outdoor verification of low-temperature performance in winter. Simultaneously, durability tests verify the fatigue strength of the door outer panel, aiding in the optimization of the door's layout design to achieve comfortable door opening and closing, no lifting issues in winter, and reliable appearance quality.

[0063] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0064] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0065] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0066] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A door testing fixture, characterized in that, include: A bench assembly (10) includes a frame body (11) and a support (12), at least a portion of which is connected to the frame body (11). A door assembly (20) includes at least a door body (21), one side of the door body (21) being rotatably connected to one side of the frame body (11), the door body (21) having a closed position simulating a closed door, and the door body (21) having an open position simulating an open door; The test mechanism assembly (30) includes at least a power mechanism (31), which is connected to the door body (21). The power mechanism (31) is used to drive the door body (21) to switch between the closed position and the open position in order to conduct a fatigue strength test on the door body (21).

2. The door testing fixture according to claim 1, characterized in that, The door assembly (20) further includes a gas strut (22), one end of which is movably connected to the door body (21) and the other end of which is movably connected to the frame body (11). The gas strut (22) has a first position located on one side of the door body (21) and a second position partially located on the other side of the door body (21). When the door body (21) is in the closed position, the gas strut (22) is in the first position, and when the door body (21) is in the open position, a portion of the gas strut (22) is in the second position.

3. The door testing fixture according to claim 2, characterized in that, The door testing fixture also includes a connecting mechanism (40), which comprises: The first connector (41) is connected to the door body (21). The first connector (41) has a first groove (410) and one end of the gas strut (22) is slidably disposed in the first groove (410). The second connector (42) is connected to the frame body (11). The second connector (42) has a second groove (420) and the other end of the gas strut (22) is slidably disposed in the second groove (420). The first slide groove (410) is arranged parallel to the width direction of the door body (21), the second slide groove (420) is arranged parallel to the width direction of the frame body (11), and when the door body (21) is in the open position, there is an angle between the door body (21) and the frame body (11).

4. The door testing fixture according to claim 3, characterized in that, The second connector (42) is fixedly connected to the frame body (11), and the first connector (41) is detachably connected to the door body (21).

5. The door testing fixture according to claim 3 or 4, characterized in that, The gas strut (22) includes: The movable segment (221) consists of two segments, one of which is movably disposed in the first slide groove (410), and the other of which is movably disposed in the second slide groove (420). A support segment (222) is provided, with its two ends connected to one of the movable segments (221), and the support segment (222) is used to provide at least a portion of the support force between the door body (21) and the frame body (11).

6. The door testing fixture according to claim 5, characterized in that, The door body (21) has a fully open limit position. When the door body (21) is in the limit position, the movable segment (221) in the first slide groove (410) abuts against the bottom end of the first slide groove (410), and the other movable segment (221) in the second slide groove (420) abuts against the top end of the second slide groove (420). Alternatively, when the door body (21) is in the closed position, the movable segment (221) in the first slide groove (410) abuts against the top end of the first slide groove (410), and the other movable segment (221) in the second slide groove (420) abuts against the bottom end of the second slide groove (420). The bottom end of the second slide groove (420) is the end closest to the ground. When the door body (21) is in the closed position, the bottom end of the first slide groove (410) is the end closest to the ground.

7. The door testing fixture according to claim 6, characterized in that, When the door body (21) is in the extreme opening position, there is an angle α between the frame body (11) and the door body (21), wherein 105°≤α≤135°.

8. The door testing fixture according to claim 1, characterized in that, The door testing fixture also includes a sealing mechanism (50), which includes a sealing strip (51). The sealing strip (51) extends circumferentially along the door body (21) and is disposed on the door body (21), or the sealing strip (51) extends circumferentially along the frame body (11) and is disposed on the frame body (11). The sealing strip (51) is at least used to fill the gap between the door body (21) and the frame body (11).

9. The door testing fixture according to claim 8, characterized in that, The sealing mechanism (50) further includes a mating part (52), which extends along the circumference of the door body (21) or the frame body (11). The mating part (52) is disposed on one of the door body (21) or the frame body (11), and the sealing strip (51) is disposed on the other of the door body (21) or the frame body (11). The mating part (52) is used to engage with the sealing strip (51).

10. The door testing fixture according to claim 1, characterized in that, The test mechanism assembly (30) also includes a control mechanism, which is electrically connected to the power mechanism (31). The control mechanism is used to control the movement of the power mechanism (31), thereby controlling the movement of the door body (21).

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