Sealing test environment simulation device

Abstract

The invention discloses a sealing test environment simulation device, and relates to the technical field of test environment simulation. The invention provides a sealing test environment simulation device, and the device comprises a circulating air duct which is provided with an air inlet and an air outlet; the protective base is used for bearing a test object; the protective upper cover is used for being matched with the protective base to form a test space, and the test space can be communicated with the air inlet and the air outlet; wherein a lifting device is arranged on the periphery of the protective upper cover, and the lifting device is used for driving the protective upper cover to move in the direction close to or away from the protective base, so that a test space for accommodating a test object or an operation space for replacing the test object can be selectively formed.

Description

Technical Field

[0001] The present application relates to the technical field of test environment simulation, and in particular to a sealing test environment simulation device. Background Art

[0002] Environmental simulation is a method in which people are not satisfied with passively predicting the natural environment, but take various means to actively simulate the natural environment, and provide a controllable experimental research platform for various physical problems. It is an experimental research method that uses multi-parameter comprehensive simulation methods to simulate the natural environment.

[0003] In the prior art, an environmental simulation device is usually fixed at a certain position, and a test object is installed inside the environmental simulation device. After the test object is tested, the test object needs to be disassembled and replaced. The replacement is usually performed through a movable door on the environmental simulation device. However, the size of the movable door is limited, which makes it inconvenient to replace the test object. Summary of the Invention

[0004] The main purpose of the present application is to provide a sealing test environment simulation device, aiming to solve the technical problem of inconvenient replacement of test objects in the environment simulation device in the prior art.

[0005] To achieve the above objectives, the present application provides a sealing test environment simulation device, comprising: A circulating air duct having an air inlet and an air outlet; A protective base for supporting the test object; A protective upper cover, which is used to cooperate with the protective base to form a test space, and the test space can be communicated with the air inlet and the air outlet; A lifting device is provided on the periphery of the protective upper cover, and the lifting device is used to drive the protective upper cover to move in a direction close to or away from the protective base, so as to selectively form a test space for accommodating the test object or an operating space for replacing the test object.

[0006] Optionally, the lifting device includes a gantry arranged on the periphery of the protective upper cover, a power member is provided at the upper end of the gantry, and a telescopic end of the power member is interconnected with the protective upper cover.

[0007] Optionally, it also includes a main platform, the protective base is arranged on the main platform, the main platform is provided with a slide rail extending along the first direction, the gantry includes support legs located on both sides of the protective upper cover, and the support legs are provided with sliders for cooperating with the slide rails.

[0008] Optionally, the side wall of the protective upper cover is provided with a guide block, the guide block is provided with a guide groove extending along the second direction, the support leg is provided with a positioning block extending along the second direction, part of the positioning block is located in the guide groove, and the positioning block and the inner wall of the guide groove form a limiting structure in the first direction.

[0009] Optionally, a first opening structure is provided at the lower end of the protective upper cover, and the lower end of the protective upper cover has a first sealing surface for bonding with the protective base, the first sealing surface includes two symmetrically arranged first bonding surfaces, and the two first bonding surfaces are connected by a second bonding surface; The first bonding surface includes a first section, a second section, and a third section connected in sequence, the first section is located at one end close to the circulating air duct, the third section is located on a side of the first section away from the circulating air duct, the first section and the third section are arranged horizontally, the height of the first section in the second direction is higher than that of the third section, the second section is arranged obliquely and connects the first section and the third section, and the second bonding surface is parallel to the first section.

[0010] Optionally, a second sealing surface for cooperating with the first sealing surface is provided at the upper end of the protective base, and a first sealing strip is provided between the first sealing surface and the second sealing surface.

[0011] Optionally, a first half groove is provided at the lower end of the protective upper cover, and a second half groove is provided at the upper end of the protective base. The first half groove and the second half groove are snapped together to form a test hole connected to the test space. The test hole is used for the piston shaft of the test object to pass through, and a sealing ring is provided on the inner wall of the test hole.

[0012] Optionally, the circulating air duct has a mounting surface, the air inlet and the air outlet are located in the area where the mounting surface is located, and a second opening structure is provided on the side of the protective base close to the circulating air duct. The edge of the second opening structure abuts against the mounting surface and is enclosed around the periphery of the air inlet and the air outlet, and a second sealing strip is provided between the second opening structure and the mounting surface.

[0013] Optionally, a sliding buckle sub-component is provided on the protective upper cover and / or the circulating air duct, and a sliding buckle mother component for connecting with the sliding buckle sub-component is provided on the circulating air duct and / or the protective upper cover.

[0014] Optionally, the circulating air duct is also connected to a motor cabinet, which is provided with a vent. A refrigeration compressor, a drying filter and a heater connected to the vent are provided in the motor cabinet, and the air outlet ends of the refrigeration compressor, the drying filter and the heater are connected to the air outlet of the circulating air duct.

[0015] Beneficial effects that this application can achieve: A sealing test environment simulation device proposed in an embodiment of the present application is characterized in that a protective base is fixedly set, a protective cover is provided at the upper end of the protective base, and a lifting device is provided above the protective cover. The lifting device is used to drive the protective cover to move up and down. When the lifting device moves downward until the protective cover abuts against the protective base, a test space for simulating the environment is formed between the protective cover, the protective base and the circulating air duct. The test object can be tested by maintaining this state. When the test object is tested, it is necessary to replace the test object. At this time, the protective cover is driven upward by the lifting device, and the lifting device is moved in a direction away from the protective base, so that an operating space is formed between the protective cover and the protective base, which is convenient for the user to replace the test object. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a sealing test environment simulation device according to an embodiment of the present application; Figure 2 for Figure 1 Schematic diagram of the partial structure of the middle protective base and protective upper cover; Figure 3 for Figure 1 Schematic diagram of the structure of the medium circulation air duct and the motor cabinet.

[0017] The numbers in the figure are: 10-circulating air duct, 11-air inlet, 12-air outlet, 13-installation surface, 20-protective base, 30-protective cover, 31-first fitting surface, 311-first section, 312-second section, 313-third section, 32-second fitting surface, 40-gantry, 41-power part, 42-support leg, 43-slider, 44-guide block, 45-positioning block, 50-main platform, 51-slide rail, 60-test hole, 70-motor cabinet, 71-ventilation port, 80-slide buckle sub-component, 81-slide buckle mother component.

[0018] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] Example 1 Reference Figure 1-Figure 3 , a first embodiment of the present application provides a sealing test environment simulation device, comprising: a circulating air duct 10 having an air inlet 11 and an air outlet 12; A protective base 20 for supporting a test object; A protective upper cover 30 is used to cooperate with the protective base 20 to form a test space, and the test space can be connected to the air inlet 11 and the air outlet 12; Among them, a lifting device is provided on the periphery of the protective upper cover 30, which is used to drive the protective upper cover 30 to move in a direction close to or away from the protective base 20, so as to selectively form a test space for accommodating the test object or form an operating space for replacing the test object.

[0024] In this embodiment, the circulating air duct 10 is a box structure, and an air inlet 11 and an air outlet 12 are provided in the circulating air duct 10. The above-mentioned air inlet 11 and air outlet 12 are relative to the circulating air duct 10. The gas in the circulating air duct 10 enters the test space through the air outlet 12, and the gas in the test space enters the circulating air duct 10 through the air inlet 11. It should be noted that a first channel and a second channel separated from each other are provided inside the circulating air duct 10, the air outlet 12 is connected to the first channel, the air inlet 11 is connected to the second channel, and an exhaust hole is also provided on the second channel. A control valve can be provided at the air inlet 11 to enable the air inlet 11 to be turned on and off according to actual usage requirements, so that the environment in the test space can be maintained in a high-pressure environment; the movement path of the gas is: the gas in the first channel enters the test space through the air outlet 12, the gas in the test space can enter the second channel through the air inlet, and then be discharged to the external environment through the exhaust hole on the second channel. The gas forms a circulating airflow in the above path to simulate the environment in the test space as an environment requiring the conditions required for the test.

[0025] The position of the protective base 20 does not change during use. The test object to be tested is placed on the protective base 20. A fixture can be provided on the protective base 20 to assist in fixing the test object. Alternatively, the test object can be fixed to the protective base 20 by its own gravity. The test object can be a cylinder body, in which a piston rod is provided. A seal whose service life or sealing performance is to be tested is provided between the outer wall of the piston rod and the inner wall of the rod body. The cylinder body is provided with coaxial oil inlet and oil outlet holes, with a seal provided on both sides of the oil inlet and oil outlet holes. By collecting leaked oil, the sealing performance and service life of the seal ring can be analyzed. At this time, by maintaining the experimental space in a cold environment or a hot environment, the impact of the environment on the sealing performance or service life of the seal can be analyzed.

[0026] When the protective cover 30 is matched with the protective base 20, the protective cover 30 is located at the upper end of the protective base 20, and the protective cover 30 and the protective base 20 are formed as a whole and are located on the left side of the circulating air duct 10. The protective cover 30 is a shell structure, and the lower end and the right end of the protective cover 30 are both open structures. The lower end of the protective cover 30 is used to match the protective base 20, and the right end of the protective cover 30 is used to match the circulating air duct 10, together enclosing a test space for testing the test object. Figure 1 and Figure 2 As shown in the figure, a rectangular window is provided in the front and rear directions of the protective upper cover 30, and a double-layer explosion-proof glass is provided at the window, which plays a protective role during the test process and facilitates the user to observe the test target status of the experimental space through the glass window.

[0027] A lifting device is provided on the periphery of the protective upper cover 30, which drives the protective upper cover 30 to move up and down through the lifting device, so as to press the protective upper cover 30 onto the protective base 20. At this time, relative movement between the protective upper cover 30 and the protective base 20 is avoided to maintain the environmental stability in the experimental space; the protective upper cover 30 can also be driven to move upward. There is a certain distance between the protective upper cover 30 and the protective base 20. The distance space is the operating space, which is used for users to replace the test object, avoiding the interference of the protective upper cover 30 on the process of replacing the test object, making it convenient for users to replace the test object and improving the replacement efficiency of the test object.

[0028] Example 2 Based on Example 1, this embodiment provides a specific structure of a lifting device, including: the lifting device includes a gantry 40 arranged on the periphery of the protective upper cover 30, and a power part 41 is provided at the upper end of the gantry 40, and the telescopic end of the power part 41 is interconnected with the protective upper cover 30.

[0029] Specifically, a gantry 40 spans above the protective cover 30. Legs 42 on either side of the gantry 40 support the gantry 40. A power member 41 is located above the gantry 40. The power member 41 can be a servo electric cylinder, a hydraulic telescopic cylinder, a pneumatic telescopic cylinder, or the like. The power member 41 has a telescopic end that is connected to the protective cover 30. The telescopic movement of the power member 41 drives the protective member to move up and down.

[0030] Optionally, it also includes a main platform 50, the protective base 20 is arranged on the main platform 50, the main platform 50 is provided with a slide rail 51 extending along the first direction, and the gantry 40 includes support legs 42 located on both sides of the protective upper cover 30, and the support legs 42 are provided with sliders 43 for cooperating with the slide rail 51.

[0031] Specifically, the main platform 50 is used to support the protective base 20, the protective cover 30 and the gantry 40. The circulating air duct 10 is provided at the right end of the main platform 50. Two parallel slide rails 51 are provided on the main platform 50, and the two slide rails 51 are respectively located on both sides of the protective base 20. Figure 1In the figure, X represents the first direction, and Y represents the second direction. The slide rail 51 extends in the first direction. A slider 43 is provided on each leg 42. The slider 43 is mounted on the slide rail 51 and can move along the direction of its extension. The gantry 40 is located on either side of the protective base 20 and has at least two legs 42, each equipped with a slider 43, which enhances the stability of the support provided by all legs 42 to the gantry 40. The sliders 43 cooperate with the slide rail 51 to enable the gantry 40 to move in the first direction. The gantry 40 can first drive the protective cover 30 upward. When the protective base 20 does not interfere with the movement of the protective cover 30 in the first direction, the gantry 40 drives the protective cover 30 in the first direction, causing the relative position of the protective cover 30 and the protective base 20 to shift. This fully exposes the protective base 20 to the environment, making it easier to replace the test object on the protective base 20 and preventing interference from the protective cover 30 during the replacement of the test object. The protective upper cover 30 is easily and quickly separated from the protective base 20. The gantry 40 only needs to be moved in a first direction, and then the power element 41 drives the protective upper cover 30 in a second direction. During the test, the power element 41 maintains downward pressure on the protective upper cover 30, maintaining close contact between the protective upper cover 30 and the protective lower cover, and maintaining the relative sealing of the test space. It should be noted that the gantry 40 can be moved along the slide rail 51 by manually pushing the gantry 40, or the main platform 50 can be provided with a hydraulic telescopic cylinder, a pneumatic telescopic cylinder, an electric push-pull rod, or the like to drive the gantry 40's movement.

[0032] Optionally, the side wall of the protective upper cover 30 is provided with a guide block 44, the guide block 44 is provided with a guide groove extending along the second direction, the support leg 42 is provided with a positioning block 45 extending along the second direction, part of the positioning block 45 is located in the guide groove, and the positioning block 45 and the inner wall of the guide groove form a limiting structure in the first direction.

[0033] Specifically, guide blocks 44 are provided on the sidewalls of the protective cover 30. A guide groove is located on the side of the guide block 44 facing away from the protective cover 30. The guide groove extends through the guide block 44 in the second direction. Positioning blocks 45 are provided on the legs 42, extending in the second direction. The positioning blocks 45 and the inner wall of the guide groove form a retaining structure along the first direction, meaning that the guide blocks 44 and the positioning blocks 45 cannot move relative to each other in the first direction. In other words, while the protective cover 30 can be raised and lowered relative to the legs 42, it cannot move laterally relative to the legs 42. This ensures the stability of the lifting and lowering of the protective cover 30 and prevents deviation in the lifting and lowering path of the protective cover 30. Furthermore, the cooperation between the slide rails 51 and the sliders 43 ensures that the gantry 40 does not misalign with the protective base 20 when it moves in the first direction, thereby ensuring that the protective cover 30 remains aligned with the protective base 20 during repeated movements. It should be noted that the power member 41 provides support force to the protective upper cover 30 to ensure that when the gantry 40 moves along the first direction, the protective upper cover 30 and the gantry 40 move synchronously.

[0034] Example 3 Based on Example 1, this embodiment provides a specific structure of a protective upper cover 30, including: a first opening structure is provided at the lower end of the protective upper cover 30, and the lower end of the protective upper cover 30 has a first sealing surface for bonding with the protective base 20, the first sealing surface includes two symmetrically arranged first bonding surfaces 31, and the two first bonding surfaces 31 are connected by a second bonding surface 32; the first bonding surface 31 includes a first section 311, a second section 312 and a third section 313 connected in sequence, the first section 311 is located at one end close to the circulating air duct 10, and the third section 313 is located on the side of the first section 311 away from the circulating air duct 10, the first section 311 and the third section 313 are horizontally arranged, the height of the first section 311 in the second direction is higher than that of the third section 313, the second section 312 is inclined and connects the first section 311 and the third section 313, and the second bonding surface 32 is parallel to the first section 311.

[0035] Specifically, a plurality of lifting ears can be provided on the upper end of the protective cover 30 to facilitate the lifting of the protective cover 30. The protective cover 30 is a shell structure, comprising a top wall, a front side wall and a rear side wall opposite to each other, and the front side wall and the rear side wall are first connected to each other through the left side wall. The first sealing surface is the lower end surface of the front side wall, the rear side wall and the left side wall. Figure 2 In the figure, the first bonding surface 31 on the rear side wall is not marked because it is difficult to show. It should be noted that Figure 2Due to the viewing angle limitations of the accompanying drawings, although the first and second mating surfaces 31 and 32 are labeled as line segments, they actually refer to the plane located at the lower end of the protective cover 30. By positioning the first end of the first mating surface 31 higher than the third segment 313, the position of the first mating surface 31 serves as a preventative measure during the downward movement of the protective cover 30. When the protective cover 30 moves downward, the protective base 20 has a matching working surface. The protective cover 30 and the protective base 20 form a retaining structure at the second segment 312, preventing lateral misalignment between the protective cover 30 and the protective base 20 after contact.

[0036] Optionally, a second sealing surface for cooperating with the first sealing surface is provided at the upper end of the protective base 20, and a first sealing strip is provided between the first sealing surface and the second sealing surface.

[0037] Specifically, by providing a first sealing strip between the protective base 20 and the protective upper cover 30 , the contact sealing between the protective base 20 and the protective upper cover 30 is increased to maintain the environmental sealing in the test space.

[0038] Optionally, a first half groove is provided at the lower end of the protective upper cover 30, and a second half groove is provided at the upper end of the protective base 20. The first half groove and the second half groove are snapped together to form a test hole 60 connected to the test space. The test hole 60 is used for the piston shaft of the test object to pass through, and a sealing ring is provided on the inner wall of the test hole 60.

[0039] Specifically, when the test object has a piston rod that requires reciprocating motion, the piston rod extends through the test hole 60 to connect to a power mechanism, which enables the reciprocating motion of the piston rod. A sealing ring is provided between the outer wall of the piston rod and the inner wall of the test hole 60. The sealing ring may include two sealing half-rings disposed in a first half-groove and a second half-groove, respectively. When the first half-groove and the second half-groove are engaged to form the test hole 60, the two sealing half-rings cooperate to form a sealing ring. When the test hole 60 is not required, the protective base 20 and protective cover 30 without the first half-groove and the second half-groove can be used. Similarly, a blocking cover can be provided at the test hole 60 to maintain relative sealing within the test space.

[0040] Example 4 Based on Example 1, this embodiment provides a specific structure of a circulating air duct 10, including: the circulating air duct 10 has a mounting surface 13, the air inlet 11 and the air outlet 12 are located in the area where the mounting surface 13 is located, and a second opening structure is provided on the side of the protective base 20 close to the circulating air duct 10. The edge of the second opening structure abuts against the mounting surface 13 and is enclosed around the periphery of the air inlet 11 and the air outlet 12. A second sealing strip (not shown in the figure) is provided between the second opening structure and the mounting surface 13.

[0041] Specifically, the circulating air duct 10 can also be a box structure, with a partition provided inside the box structure to divide the inside of the circulating air duct 10 into two channels. The gas discharged from the air outlet 12 enters the test space, and the gas in the test space can enter the circulating air duct 10 through the air inlet 11, and then be discharged to the external environment through the circulating air duct 10. When the protective upper cover 30 moves downward onto the protective base 20, the right end of the protective upper cover 30 can abut against the mounting surface 13 at the left end of the circulating air duct 10. The right end of the protective upper cover 30 is an open structure, and the right end of the protective upper cover 30 can be covered on the periphery of the air outlet 12 and the air inlet 11, so that the air inlet 11 and the air outlet 12 are located in the test space. By providing a second sealing strip between the right end of the protective upper cover 30 and the mounting surface 13, the sealing between the right end of the protective upper cover 30 and the mounting surface 13 is increased, thereby facilitating the improvement of the relative sealing inside the test space.

[0042] Optionally, a sliding buckle component 80 is provided on the protective upper cover 30 and / or the circulating air duct 10 , and a sliding buckle mother component 81 for connecting with the sliding buckle component 80 is provided on the circulating air duct 10 and / or the protective upper cover 30 .

[0043] Specifically, by arranging mutually cooperating sliding buckle sub-components 80 and sliding buckle mother components 81 between the protective upper cover 30 and the circulating air duct 10, the protective upper cover 30 and the circulating air duct 10 are exerted with a tendency to move toward each other, so that the protective upper cover 30 and the circulating air duct 10 are in close contact, providing relative sealing of the internal environment of the test space. The sliding buckle component 80 can have a hook groove, and the sliding groove mother component includes a fixing component, a movable wrench is provided on the fixing component, and the movable handle is connected to the fixing component through a positioning pin. The fixing component is also provided with a latch, and a pull hook is provided on the latch. The axis of the positioning pin and the axis of the latch are parallel to each other. When external force is applied to the movable handle, the movable handle flips around the axis of the positioning pin. At this time, the latch synchronously flips around the axis of the positioning pin. At this time, the pull hook moves to a position matching the hook groove, and then external force is applied to the movable handle to make the movable handle move in the direction away from the sliding buckle component 80. At this time, the pull hook moves along the hook groove toward the direction close to the sliding buckle mother component 81. The pull hook and the hook groove form a limiting structure to realize the connection between the sliding buckle component 80 and the sliding buckle mother component 81, and then realize the connection between the protective cover 30 and the circulating air duct 10.

[0044] Optionally, the circulating air duct 10 is also connected to a motor cabinet 70, which is provided with a vent 71. A refrigeration compressor, a drying filter and a heater connected to the vent 71 are provided in the motor cabinet 70, and the air outlet ends of the refrigeration compressor, the drying filter and the heater are connected to the air outlet 12 of the circulating air duct 10.

[0045] Specifically, a refrigeration compressor, a drying filter and a heater are provided in the motor cabinet 70. A vent 71 is also provided on the motor cabinet 70. Air from the external environment of the motor cabinet 70 enters the motor cabinet 70 through the vent 71 and is then processed by the refrigeration compressor, the drying filter and the heater. The gas processed by the refrigeration compressor, the drying filter and the heater enters the test space through the air outlet 12 on the circulating air duct 10 to simulate the environmental conditions of different environmental parameters of the test space. A plurality of sensors such as temperature, humidity and air pressure can also be provided in the test space. The motor cabinet 70 and the circulating air duct 10 can be connected by welding or by bolting.

[0046] The refrigeration compressor is one of the core components in the motor cabinet 70 and is responsible for reducing the temperature of the air. It cools the air by compressing the refrigerant, causing it to release heat in the condenser and absorb heat in the evaporator. The refrigeration compressor can be a scroll type refrigeration compressor.

[0047] A filter drier is used to remove moisture and impurities from the air, ensuring that the air entering the test space is dry and clean. It typically consists of a filter that traps large particles of impurities and a desiccant that absorbs moisture from the air. Filter driers can be molecular sieve filters.

[0048] Heaters are used to raise the air temperature when needed to simulate a high-temperature environment or compensate for the temperature drop caused by the refrigeration compressor. Heaters can be electric heating wires, heat pipes, or other types of heating elements. They are typically equipped with temperature sensors and control systems to ensure accurate temperature control. Heaters can be PTC ceramic heaters, stainless steel electric heating tubes, etc.

[0049] The motor cabinet 70 houses a fixed refrigeration compressor, filter drier, and heater, all electrically connected to a PLC controller. A touchscreen interface allows for data adjustments. The test fixture is mounted on a protective base 20, and the test object's piston rod extends through a test port 60 for connection to other equipment, such as a drive unit. Multiple temperature, humidity, and air pressure sensors are installed within the test space. Real-time monitoring of sensor signals and feedback control ensure uniform temperature and humidity control within the test space.

[0050] By setting test environment parameters on the touchscreen, the components within the motor cabinet 70 are activated to deliver the corresponding airflow to the circulating air duct 10. This creates a circulating airflow through the motor cabinet 70, circulating air duct 10, and environmental chamber, thereby controlling the entire environmental chamber temperature. The protective cover 30 can be lifted and separated from the protective base 20 by a servo electric cylinder and moved left and right via an external lifting device and a sliding connection with the main platform 50, facilitating the replacement of test objects and tooling.

[0051] The protective cover 30 and the protective base 20 structures include rigid polyurethane rigid foam and glass fiber insulation design to ensure effective insulation during the test process.

[0052] By changing the temperature, humidity, air pressure, etc. inside the test space in a circulating airflow manner and by designing the insulation of the test space structure itself, the test space can simulate the target test environment; by using the temperature, humidity, air pressure and other sensor signals in the test space, feedback control of the simulated environment can be achieved; through the test holes 60 reserved in the test space, the function of synchronization of the test environment with other equipment is achieved; double-layer glass windows are provided on the front and rear side walls of the protective cover 30, and the design of the double-layer glass windows enables real-time observation of the interior of the test space.

[0053] A plurality of universal wheels with locking structures can also be provided at the lower end of the motor cabinet 70 so that the motor cabinet 70 can be moved according to actual usage requirements, so that the distance between the motor cabinet 70 and the main platform 50 is maintained at an appropriate distance.

[0054] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A sealing test environment simulation device, characterized in that: include: a circulating air duct having an air inlet and an air outlet; A protective base for supporting the test object; A protective upper cover, which is used to cooperate with the protective base to form a test space, and the test space can be communicated with the air inlet and the air outlet; A lifting device is provided on the periphery of the protective upper cover, and the lifting device is used to drive the protective upper cover to move in a direction close to or away from the protective base, so as to selectively form a test space for accommodating the test object or an operating space for replacing the test object.

2. The sealing test environment simulation device according to claim 1, characterized in that: The lifting device includes a gantry frame arranged on the periphery of the protective upper cover, the upper end of the gantry frame is provided with a power member, and the telescopic end of the power member is connected to the protective upper cover.

3. The sealing test environment simulation device according to claim 2, characterized in that: It also includes a main platform, the protective base is arranged on the main platform, the main platform is provided with a slide rail extending along the first direction, the gantry includes support legs located on both sides of the protective upper cover, and the support legs are provided with sliders for cooperating with the slide rail.

4. The sealing test environment simulation device according to claim 3, characterized in that: The side wall of the protective upper cover is provided with a guide block, and the guide block is provided with a guide groove running through along the second direction. The support leg is provided with a positioning block extending along the second direction, and part of the positioning block is located in the guide groove. The positioning block and the inner wall of the guide groove form a limiting structure in the first direction.

5. The sealing test environment simulation device according to claim 1, wherein: The lower end of the protective upper cover is provided with a first opening structure, and the lower end of the protective upper cover has a first sealing surface for bonding with the protective base, the first sealing surface includes two symmetrically arranged first bonding surfaces, and the two first bonding surfaces are connected by a second bonding surface; The first bonding surface includes a first section, a second section, and a third section connected in sequence, the first section is located at one end close to the circulating air duct, the third section is located on a side of the first section away from the circulating air duct, the first section and the third section are arranged horizontally, the height of the first section in the second direction is higher than that of the third section, the second section is arranged obliquely and connects the first section and the third section, and the second bonding surface is parallel to the first section.

6. The sealing test environment simulation device according to claim 5, characterized in that: The upper end of the protective base is provided with a second sealing surface for cooperating with the first sealing surface, and a first sealing strip is provided between the first sealing surface and the second sealing surface.

7. The sealing test environment simulation device according to claim 6, characterized in that: A first half groove is provided at the lower end of the protective upper cover, and a second half groove is provided at the upper end of the protective base. The first half groove and the second half groove are buckled together to form a test hole connected to the test space. The test hole is used for the piston shaft of the test object to pass through, and a sealing ring is provided on the inner wall of the test hole.

8. The sealing test environment simulation device according to claim 1, wherein: The circulating air duct has a mounting surface, the air inlet and the air outlet are located in the area where the mounting surface is located, and a second opening structure is provided on the side of the protective base close to the circulating air duct. The edge of the second opening structure abuts against the mounting surface and is enclosed around the periphery of the air inlet and the air outlet, and a second sealing strip is provided between the second opening structure and the mounting surface.

9. The sealing test environment simulation device according to claim 8, characterized in that: The protective upper cover and / or the circulating air duct are provided with a sliding buckle sub-component, and the circulating air duct and / or the protective upper cover are provided with a sliding buckle mother component for connecting with the sliding buckle sub-component.

10. The sealing test environment simulation device according to claim 1, wherein: The circulating air duct is also connected to a motor cabinet, which is provided with a vent. A refrigeration compressor, a drying filter and a heater connected to the vent are provided in the motor cabinet, and the air outlet ends of the refrigeration compressor, the drying filter and the heater are connected to the air outlet of the circulating air duct.

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