Environmental simulation test box

Abstract

The invention relates to the technical field of environment simulation tests, in particular to an environment simulation test box. The environment simulation test box comprises a box body, a box cover, an opening and closing driving mechanism and a safety mechanism, the box cover is hinged to the box body, a fixing ring is arranged on the box cover, and the opening and closing driving mechanism is configured to drive the box cover to rotate relative to the box body, so that the box cover is switched between a first state of opening the box body and a second state of closing the box body; the safety mechanism comprises a support and a safety pin, the support is arranged on the box body, the safety pin is inserted into the support, and in the first state, the fixing ring is arranged on the safety pin in a sleeving mode, so that it is guaranteed that when the box cover is in the open state, the box cover cannot be closed due to the fact that an operator mistakenly starts the opening and closing driving assembly, and then the operator or a to-be-tested product is prevented from being injured; and the safety of the test process is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental simulation test, and particularly to an environmental simulation test chamber. Background Art

[0002] An environmental test chamber is a device used to simulate various environmental conditions, and can test environmental factors such as temperature, humidity, vibration, shock, salt spray, and light on products to evaluate the reliability and stability of products during actual use, storage, and transportation.

[0003] An environmental simulation test chamber generally includes a chamber body, a chamber cover, and an opening and closing drive mechanism. The opening and closing drive mechanism can drive the chamber cover to rotate relative to the chamber body to open or close the chamber body. To ensure that after the chamber cover is opened, if the opening and closing drive mechanism fails due to power failure, causing the chamber cover to close due to its own gravity and injuring the operator or the product, it is generally designed that a counterweight is provided on the chamber cover. When the chamber cover is opened in place relative to the chamber body, the counterweight can prevent the chamber cover from automatically closing.

[0004] However, when the operator makes a misoperation, such as starting the opening and closing drive mechanism by mistake after the chamber cover is opened, the counterweight cannot prevent the chamber cover from closing, and it is easy to injure the operator or the product.

[0005] Therefore, there is an urgent need for an environmental simulation test chamber to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide an environmental simulation test chamber, which can prevent the operator from accidentally starting the opening and closing drive assembly, causing the chamber cover to close, thereby avoiding injuring the operator or the product to be tested and improving the safety of the test process.

[0007] To achieve the above purpose, the following technical solutions are provided:

[0008] An environmental simulation test chamber, comprising:

[0009] A chamber body;

[0010] A chamber cover, hinged to the chamber body, and a fixed ring is provided on the chamber cover;

[0011] An opening and closing drive mechanism, configured to drive the chamber cover to rotate relative to the chamber body, so that the chamber cover switches between a first state of opening the chamber body and a second state of closing the chamber body;

[0012] A safety mechanism, including a bracket and a safety pin. The bracket is provided on the chamber body, and the safety pin is inserted into the bracket. In the first state, the fixed ring is sleeved on the safety pin.

[0013] As an alternative, the bracket includes two spaced-apart support portions, and insertion holes are formed in the support portions. In the first state, the fixing ring is located between the two support portions, and the safety pin passes through the insertion holes and the fixing ring.

[0014] As an alternative, the safety pin includes:

[0015] A main body portion:

[0016] A first limiting portion, which is arranged at an end of the main body portion and is arranged at an angle with the axis of the main body portion. The main body portion passes through the insertion hole, and the first limiting portion can abut against the side wall of one of the support portions.

[0017] As an alternative, the support portion is further provided with an avoidance hole communicating with the insertion hole, and the avoidance hole is used for the first limiting portion to pass through.

[0018] As an alternative, the safety mechanism further includes:

[0019] A detection member configured to detect whether the safety pin is installed on the bracket, and the detection member is in signal connection with the opening and closing drive mechanism.

[0020] As an alternative, the number of the safety mechanisms is at least two, and at least two safety mechanisms are arranged at intervals along the axial direction of the safety pin.

[0021] As an alternative, the environmental simulation test chamber further includes:

[0022] A limiting mechanism, the limiting mechanism is inclined toward the side of the box cover to form a second limiting portion, and in the first state, the box cover abuts against the second limiting portion.

[0023] As an alternative, the limiting mechanism further includes:

[0024] A flexible member, which is arranged outside the second limiting portion, and the box cover can abut against the flexible member.

[0025] As an alternative, the limiting mechanism is provided with a placement hole for placing the safety pin.

[0026] As an alternative, the safety mechanism further includes:

[0027] A safety pin chain, one end of the safety pin chain is connected to the safety pin, and the other end is connected to the limiting mechanism.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] The environmental simulation test chamber provided by the present invention is provided with a safety mechanism. The safety mechanism includes a bracket and a safety pin. The bracket is arranged on the box body, and the safety pin is inserted into the bracket. When the box cover is opened, the fixing ring is sleeved on the safety pin to ensure that when the box cover is in the open state, it will not be closed due to the accidental start of the opening and closing drive component by the operator, thereby avoiding injury to the operator or the product to be tested and improving the safety of the test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present invention and these drawings.

[0031] Figure 1 It is a schematic structural diagram of the first state in which the box cover of the environmental simulation test chamber provided by the embodiment of the present invention is in an open state of the box body;

[0032] Figure 2 It is a schematic structural diagram of the second state in which the box cover of the environmental simulation test chamber provided by the embodiment of the present invention is in a closed state of the box body;

[0033] Figure 3 For Figure 2 The partial enlarged view at A in;

[0034] Figure 4 It is a schematic structural diagram of the safety part and the limiting part provided by the embodiment of the present invention.

[0035] Reference numerals:

[0036] 100, environmental simulation test chamber;

[0037] 10, box body; 11, cable hole; 12, test hole;

[0038] 20, box cover; 21, fixing ring; 22, lifting ring;

[0039] 30, safety mechanism; 31, bracket; 311, support part; 3111, jack; 3112, avoidance hole; 32, safety pin; 321, main body part; 322, first limiting part; 33, detection part;

[0040] 40, limiting mechanism; 41, second limiting part; 42, flexible part; 43, placement hole;

[0041] 50, opening and closing drive mechanism;

[0042] 61, unit room; 62, control room; 63, air-conditioning room. Detailed Implementation Modes

[0043] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific implementation modes of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0044] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0045] In addition, if terms such as "first" and "second" appear, these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0046] In the present application, unless otherwise clearly specified and limited, if terms such as "install", "connect", "couple", "fix", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0047] In this application, unless otherwise clearly specified and defined, when a first feature is described as being "on" or "under" a second feature or the like, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0048] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If present, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for illustrative purposes and do not represent the only implementation.

[0049] As Figure 1 and Figure 2 As shown, this embodiment provides an environmental simulation test chamber 100, which mainly includes a test chamber, an air-conditioning chamber 63 and a control chamber 62. Among them, the test chamber includes a chamber cover 20 and a chamber body 10. The chamber cover 20 and the chamber body 10 are detachably connected. After the chamber cover 20 and the chamber body 10 are connected, a containing chamber is formed, and the containing chamber is used to place the product to be tested. The air-conditioning chamber 63 is arranged on the chamber body 10. The air-conditioning chamber 63 is communicated with the containing chamber. The air-conditioning chamber 63 is configured to adjust the temperature and humidity in the containing chamber. The unit chamber 61 is used to provide cold energy for the evaporator in the air-conditioning chamber 63. Specifically, the unit chamber 61 further includes a refrigeration system composed of a compressor, a condenser, valve parts and several pipelines, etc., which is beneficial to provide cold energy for the evaporator of the air-conditioning chamber 63. The control chamber 62 is electrically connected to both the air-conditioning chamber 63 and the unit chamber 61.

[0050] Optionally, for some test conditions with certain humidity requirements, the unit chamber 61 in this embodiment further includes a humidifying mechanism for generating humidity, which provides moisture to the air-conditioning chamber 63 through a humidifying pipeline, such as a steam humidifier can be set up.

[0051] An evaporator, a heater, a humidifying pipe, a fan, etc. are placed in the air-conditioning chamber 63 of this embodiment. The air that meets certain temperature and humidity conditions in the air-conditioning chamber 63 is sent to the test chamber by the fan, so as to simulate and form a natural environment condition of temperature and humidity with required specifications in the test chamber. The product to be tested completes relevant tests under the test conditions of this simulated environment.

[0052] In the control room 62 of this embodiment, strong and weak electricity controls can be provided for the environmental simulation test chamber 100 to control the power on and off, signal reception, transmission, and processing of the environmental simulation test chamber 100, and maintain the normal operation of the environmental simulation test chamber 100. Specifically, the control room 62 in this embodiment includes a controller and control components, such as a circuit breaker, contactor, relay, PLC, etc. The controller controls the circuit break of the compressor, heater, various valves, humidifying mechanism, fan, alarm, etc.

[0053] Optionally, a cable hole 11 is provided on the box body 10. The cable hole 11 is used to pass the test line of the product to be tested, so that relevant signals can be connected to the product to be tested and external detection devices through the test line during testing. The number of cable holes 11 can be set to 1, 2, 3, or other numbers.

[0054] Optionally, a test hole 12 is provided on the box body 10. The test hole 12 can facilitate various test supporting components to enter the interior of the test chamber to accurately measure the product to be tested in the test chamber.

[0055] Optionally, the box cover 20 is hinged to the box body 10 through a hinge. The environmental simulation test chamber 100 further includes an opening and closing drive mechanism 50. One end of the opening and closing drive mechanism 50 is rotatably connected to the box body 10, and the other end of the opening and closing drive mechanism 50 is rotatably connected to the box cover 20. The opening and closing drive mechanism 50 can drive the box cover 20 to open and close, that is, the opening and closing drive mechanism 50 can drive the box cover 20 to rotate relative to the box body 10, so that the box cover 20 can be switched between a first state of opening the box body 10 and a second state of closing the box body 10. When the box cover 20 is in the first state, it is beneficial to the installation and arrangement of the product to be tested; when the box cover 20 is in the second state, the test chamber is in a relatively enclosed space. After the environmental simulation test chamber 100 is started, a relatively stable climate environment condition is formed in this space to complete the test of the product to be tested. Among them, the opening and closing drive mechanism 50 can be an existing linear drive device such as a hydraulic cylinder, air cylinder, or electric push rod.

[0056] In order to make the opening angle of the box cover 20 as large as possible to provide as much space as possible for the installation of the product to be tested, the hinge is set near the joint of the box cover 20 and the box body 10.

[0057] Optionally, the environmental simulation test chamber 100 further includes a limiting mechanism 40. The limiting mechanism 40 is arranged on the top of the box body 10. One side of the limiting mechanism 40 facing the box cover 20 is inclined to form a second limiting part 41. In the first state, the box cover 20 abuts against the second limiting part 41. The limiting mechanism 40 is used to support the box cover 20 when the box cover 20 is opened to the maximum position (the box cover 20 is in the first state). Specifically, the inclination angle of the second limiting part 41 is the same as the angle of the box cover 20 in the first state.

[0058] Optionally, the limiting mechanism 40 further includes a flexible member 42. The flexible member 42 is disposed outside the second limiting portion 41. The lid 20 can abut against the flexible member 42. The flexible member 42 is used to protect the surface of the lid 20 at the contact position with the second limiting portion 41, preventing the surface of the lid 20 from being worn due to repeated use and affecting the appearance and service life of the environmental simulation test chamber 100.

[0059] In this embodiment, the flexible member 42 is urethane rubber, which is a new synthetic material between plastic and rubber, combining the rigidity of plastic and the elasticity of rubber, and having excellent properties such as high strength, small compression deformation, wear resistance, oil resistance and aging resistance.

[0060] To ensure that after the lid 20 is opened, if the power of the opening and closing drive mechanism 50 fails, causing the lid 20 to close due to its own gravity and hurting the operator or the product, it is generally designed that a counterweight is provided on the lid 20. When the lid 20 is opened relative to the box body 10 in place, the counterweight can prevent the lid 20 from automatically closing. However, when the operator makes a misoperation, such as starting the opening and closing drive mechanism 50 by mistake after the lid 20 is opened, the counterweight cannot prevent the lid 20 from closing, and it is easy to hurt the operator or the product.

[0061] To solve the above problems, the environmental simulation test chamber 100 provided in this embodiment further includes a safety mechanism 30. The safety mechanism 30 includes a bracket 31 and a safety pin 32. The bracket 31 is disposed on the box body 10, and the safety pin 32 is inserted into the bracket 31. In the first state, the fixing ring 21 is sleeved on the safety pin 32 to ensure that when the lid 20 is in the open state, the lid 20 will not close due to the operator's misoperation of starting the opening and closing drive assembly, thereby avoiding hurting the operator or the product to be tested and improving the safety of the test process.

[0062] In this embodiment, the safety mechanism 30 is disposed on the limiting mechanism 40, with high integration and convenient installation.

[0063] As Figures 1-4 shown, the bracket 31 includes two spaced-apart support portions 311. The support portions 311 are disposed on the limiting mechanism 40. A jack 3111 is formed on the support portion 311. In the first state, the fixing ring 21 is located between the two support portions 311, and the safety pin 32 passes through the jack 3111 and the fixing ring 21. By disposing the fixing ring 21 between the two support portions 311 and passing the safety pin 32 through the jack 3111 and the fixing ring 21, the fixing ring 21 and the safety pin 32 can be prevented from disengaging.

[0064] Optionally, a lifting ring 22 is further provided on the lid 20. The structural shape of the lifting ring 22 is the same as that of the fixing ring 21. When the environmental simulation test chamber 100 needs to be assembled or the lid 20 needs to be disassembled and repaired subsequently, a lifting device can lift and install or disassemble the lid 20 through the lifting ring 22 and the fixing ring 21.

[0065] Specifically, the safety pin 32 includes a main body portion 321 and a first limiting portion 322. The first limiting portion 322 is provided at the end of the main body portion 321 and is arranged at an angle with the axis of the main body portion 321. The main body portion 321 is inserted through the insertion hole 3111, and the first limiting portion 322 can abut against the side wall of one of the supporting portions 311. In use, the main body portion 321 is located at the bottom of the insertion hole 3111 under the action of gravity, and the first limiting portion 322 can abut against the side wall of one of the supporting portions 311 to prevent the main body portion 321 from disengaging from the insertion hole 3111. In this embodiment, the first limiting portion 322 is perpendicular to the axis of the main body portion 321 to achieve a better limiting effect. In other embodiments, the first limiting portion 322 and the axis of the main body portion 321 may be arranged at other angles.

[0066] In this embodiment, in order to further prevent the main body portion 321 from disengaging from the insertion hole 3111, the diameter of the insertion hole 3111 is larger than the diameter of the main body portion 321 and smaller than the sum of the dimensions of the main body portion 321 and the first limiting portion 322 in the radial direction of the main body portion 321. In order to prevent the supporting portion 311 from interfering with the installation of the safety pin 32, the supporting portion 311 is further provided with an avoidance hole 3112 communicating with the insertion hole 3111. The avoidance hole 3112 is used for the first limiting portion 322 to pass through. In this embodiment, the main body portion 321 is a cylindrical structure and the insertion hole 3111 is a circular hole structure.

[0067] Optionally, the avoidance hole 3112 is located above the insertion hole 3111. During specific use, keeping the first limiting portion 322 upward, the main body portion 321 sequentially passes through the insertion hole 3111 of one of the supporting portions 311, the fixing ring 21, and the insertion hole 3111 of the other supporting portion 311, and then the safety pin 32 rotates to the position where the first limiting portion 322 hangs down due to the gravity of the first limiting portion 322, so as to ensure that the safety pin 32 will not become loose due to the vibration during the operation of the environmental simulation test chamber 100.

[0068] Optionally, the safety mechanism 30 further includes a safety pin chain (not shown in the figure). One end of the safety pin chain is connected to the main body portion 321, and the other end of the safety pin chain is connected to the limiting mechanism 40. By providing the safety pin chain, the loss of the safety pin 32 can be prevented.

[0069] Optionally, the limiting mechanism 40 is provided with a placement hole 43 for placing the safety pin 32. When the safety pin 32 is not in use, placing the safety pin 32 in the placement hole 43 of the safety pin 32 can facilitate the operator to access.

[0070] Optionally, the safety mechanism 30 further includes a detection member 33 disposed on the limit mechanism 40. The detection member 33 is used to detect whether the safety pin 32 is installed on the bracket 31. The detection member 33 and the opening / closing drive mechanism 50 are respectively signal-connected to the control room 62. When the lid 20 is opened and the safety pin 32 fixes the lid 20, the end of the safety pin 32 presses against the detection member 33, and the detection member 33 transmits a signal indicating that the lid 20 is in the open state to the control room 62. The control room 62 controls the opening / closing drive mechanism 50 not to perform the action of closing the lid 20. Only after the safety pin 32 is removed can the opening / closing drive mechanism 50 perform the action of closing the lid 20, thereby further avoiding the lid 20 being closed due to misoperation and improving the use safety of the environmental simulation test chamber 100. Among them, the detection member 33 is a proximity switch.

[0071] Optionally, the number of the safety mechanisms 30 is at least two. The safety mechanisms 30 and the limit mechanisms 40 are arranged in one-to-one correspondence. The at least two safety mechanisms 30 are arranged at intervals along the axial direction of the safety pin 32, so that the lid 20 can be balanced in force, and thus the lid 20 can be more stably prevented from closing in case of misoperation.

[0072] Note that in the description of this specification, the descriptions referring to the terms "some embodiments", "other embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0073] The above is only the preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An environmental simulation test chamber, characterized in that, Comprising: A box body (10); A box cover (20), hinged to the box body (10), and a fixing ring (21) is provided on the box cover (20); An opening and closing drive mechanism (50), configured to drive the box cover (20) to rotate relative to the box body (10), so that the box cover (20) switches between a first state of opening the box body (10) and a second state of closing the box body (10); A safety mechanism (30), including a bracket (31) and a safety pin (32), the bracket (31) is provided on the box body (10), the safety pin (32) is inserted into the bracket (31), and in the first state, the fixing ring (21) is sleeved on the safety pin (32).

2. The environmental simulation test chamber according to claim 1, wherein, The bracket (31) includes two spaced-apart support portions (311), and insertion holes (3111) are formed on the support portions (311). In the first state, the fixing ring (21) is located between the two support portions (311), and the safety pin (32) passes through the insertion holes (3111) and the fixing ring (21).

3. The environmental simulation test chamber according to claim 2, wherein The safety pin (32) includes: A main body portion (321): A first limiting portion (322), the first limiting portion (322) is provided at an end of the main body portion (321) and is arranged at an angle with the axis of the main body portion (321). The main body portion (321) passes through the insertion hole (3111), and the first limiting portion (322) can abut against the side wall of one of the support portions (311).

4. The environmental simulation test chamber according to claim 3, wherein The support portion (311) is further provided with an avoidance hole (3112) communicating with the insertion hole (3111), and the avoidance hole (3112) is used for the first limiting portion (322) to pass through.

5. The environmental simulation test chamber according to claim 1, characterized in that, The safety mechanism (30) further includes: A detection member (33), configured to detect whether the safety pin (32) is installed on the bracket (31), and the detection member (33) is in signal connection with the opening and closing drive mechanism (50).

6. The environmental simulation test chamber according to claim 1, wherein, The number of the safety mechanisms (30) is at least two, and at least two safety mechanisms (30) are arranged at intervals along the axial direction of the safety pin (32).

7. The environmental simulation test chamber according to any one of claims 1-6, characterized in that, The environmental simulation test chamber further includes: A limiting mechanism (40), the side of the limiting mechanism (40) facing the box cover (20) is inclined to form a second limiting portion (41), and in the first state, the box cover (20) abuts against the second limiting portion (41).

8. The environmental simulation test chamber according to claim 7, characterized in that, The limiting mechanism (40) further includes: A flexible member (42), arranged outside the second limiting portion (41), and the box cover (20) can abut against the flexible member (42).

9. The environmental simulation test chamber according to claim 7, characterized in that, The limiting mechanism (40) is provided with a placement hole (43), and the placement hole (43) is used for placing the safety pin (32).

10. The environmental simulation test chamber according to claim 7, characterized in that, The safety mechanism (30) further includes: A safety pin chain, one end of the safety pin chain is connected to the safety pin (32), and the other end is connected to the limiting mechanism (40).

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