Environmental simulation test box
By introducing a safety mechanism into the environmental simulation test chamber, using supports and safety pins to prevent accidental closure of the chamber lid, the safety risks caused by operator error are resolved, and the safety of the test is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TUOMILUO ENVIRONMENTAL TEST EQUIP CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-21
AI Technical Summary
In existing environmental simulation test chambers, if the operator accidentally activates the opening and closing drive mechanism, causing the chamber lid to close, there is a risk of injury to the operator or the product, and there is a lack of safety assurance.
A safety mechanism, including a bracket and a safety pin, is installed on the box. The retaining ring is fitted onto the safety pin when the box lid is open to prevent the box lid from closing due to accidental operation. The design of the safety pin and bracket ensures that the box lid will not close due to accidental operation when it is open.
This effectively prevents the lid from closing due to misoperation, improves the safety of the testing process, and protects the safety of operators and the products under test.
Smart Images
Figure CN224142273U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of environmental simulation testing technology, and in particular to an environmental simulation test chamber. Background Technology
[0002] An environmental test chamber is a device used to simulate various environmental conditions. It can test products for environmental factors such as temperature, humidity, vibration, shock, salt spray, and light to evaluate the reliability and stability of products during actual use, storage, and transportation.
[0003] Environmental simulation test chambers typically include a chamber body, a lid, and an opening / closing drive mechanism. This mechanism rotates the lid relative to the chamber body to open or close the chamber. To prevent injury to operators or products from accidental closure due to gravity if the opening / closing drive mechanism fails after the lid is opened, a counterweight is usually installed on the lid. This counterweight prevents the lid from automatically closing once it is fully open relative to the chamber body.
[0004] However, when operators make mistakes, such as accidentally activating the opening and closing drive mechanism after the lid is opened, the counterweight cannot prevent the lid from closing, which can easily injure the operator or the product.
[0005] Therefore, there is an urgent need for an environmental simulation test chamber to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide an environmental simulation test chamber that can prevent operators from accidentally activating the opening and closing drive components, thus closing the chamber lid and preventing injury to operators or the product under test, thereby improving the safety of the test process.
[0007] To achieve the above objectives, the following technical solution is provided:
[0008] An environmental simulation test chamber includes:
[0009] Box;
[0010] The lid is hinged to the box body, and a retaining ring is provided on the lid;
[0011] An opening and closing drive mechanism is configured to drive the lid to rotate relative to the box body, so that the lid switches between a first state of opening the box body and a second state of closing the box body;
[0012] The safety mechanism includes a bracket and a safety pin. The bracket is mounted on the housing, and the safety pin is inserted into the bracket. In the first state, the fixing ring is sleeved on the safety pin.
[0013] As an optional solution, the bracket includes two spaced-apart support portions, each with an insertion hole. In the first state, the fixing ring is located between the two support portions, and the safety pin passes through the insertion hole and the fixing ring.
[0014] As an optional solution, the safety pin includes:
[0015] Main body:
[0016] A first limiting part is disposed at the end of the main body and is arranged at an angle to the axis of the main body. The main body passes through the insertion hole, and the first limiting part can abut against the side wall of one of the support parts.
[0017] As an optional solution, the support portion is also provided with a clearance hole that communicates with the insertion hole, the clearance hole being used for the first limiting portion to pass through.
[0018] As an optional solution, the security mechanism also includes:
[0019] A detection element is configured to detect whether the safety pin is installed on the bracket, and the detection element is signal-connected to the opening and closing drive mechanism.
[0020] Alternatively, the number of safety mechanisms is at least two, and the at least two safety mechanisms are arranged at axial intervals along the safety pin.
[0021] As an optional feature, the environmental simulation test chamber also includes:
[0022] A limiting mechanism is provided, wherein the limiting mechanism is inclined toward one side of the box cover to form a second limiting part, and in the first state, the box cover abuts against the second limiting part.
[0023] As an optional solution, the limiting mechanism further includes:
[0024] A flexible component is disposed on the outside of the second limiting portion, and the box cover can abut against the flexible component.
[0025] As an optional solution, the limiting mechanism has a placement hole for placing the safety pin.
[0026] As an optional solution, the security mechanism also includes:
[0027] A safety pin chain, one end of which is connected to the safety pin, and the other end of which is connected to the limiting mechanism.
[0028] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0029] The environmental simulation test chamber provided by this utility model has a safety mechanism, which includes a bracket and a safety pin. The bracket is set on the chamber body, and the safety pin is inserted into the bracket. When the chamber lid is opened, the fixing ring is sleeved on the safety pin to ensure that the chamber lid will not close due to the operator accidentally activating the opening and closing drive component, thereby avoiding injury to the operator or the product under test and improving the safety of the test process. Attached Figure Description
[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.
[0031] Figure 1 A schematic diagram of the environmental simulation test chamber with the lid in the first open state, as provided in an embodiment of this utility model.
[0032] Figure 2 A schematic diagram of the second state of the environmental simulation test chamber with the lid closed, provided in an embodiment of this utility model.
[0033] Figure 3 for Figure 1 A magnified view of a section at point A in the middle;
[0034] Figure 4 A schematic diagram of the safety part and the limiting part provided in the embodiment of this utility model.
[0035] Figure label:
[0036] 100. Environmental simulation test chamber;
[0037] 10. Enclosure; 11. Cable hole; 12. Test hole;
[0038] 20. Box lid; 21. Fixing ring; 22. Lifting ring;
[0039] 30. Safety mechanism; 31. Bracket; 311. Support part; 3111. Insertion hole; 3112. Clearance hole; 32. Safety pin; 321. Main body; 322. First limit part; 33. Inspection piece;
[0040] 40. Limiting mechanism; 41. Second limiting part; 42. Flexible component; 43. Placement hole;
[0041] 50. Opening and closing drive mechanism;
[0042] 61. Unit room; 62. Control room; 63. Air conditioning room. Detailed Implementation
[0043] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0044] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0045] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0047] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0048] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening 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 intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0049] like 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. The test chamber includes a cover 20 and a body 10, which are detachably connected. The cover 20 and body 10, when connected, form a accommodating chamber for placing the product to be tested. The air conditioning chamber 63 is located on the body 10 and communicates with the accommodating chamber. The air conditioning chamber 63 is configured to regulate the temperature and humidity within the accommodating chamber. A unit chamber 61 provides cooling energy to the evaporator within the air conditioning chamber 63. Specifically, the unit chamber 61 also includes a refrigeration system composed of a compressor, condenser, valves, and several pipes, which facilitates the provision of cooling energy to the evaporator in 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 that require a certain level of humidity, the unit room 61 in this embodiment also includes a humidification mechanism to generate humidity, which supplies moisture to the air-conditioned room 63 through a humidification pipe, such as a steam humidifier.
[0051] In this embodiment, the air-conditioned room 63 contains an evaporator, a heater, a humidification pipe, a fan, etc. The fan delivers air from the air-conditioned room 63, which meets certain temperature and humidity conditions, to the test room, thereby simulating the required temperature and humidity natural environment conditions in the test room. The product under test completes relevant tests under the test conditions of this simulated environment.
[0052] In this embodiment, the control room 62 provides both high-voltage and low-voltage control for the environmental simulation test chamber 100, controlling its power supply, signal reception, transmission, and processing to maintain its normal operation. Specifically, the control room 62 includes a controller and control components such as circuit breakers, contactors, relays, and PLCs. The controller controls the circuit switching of the compressor, heater, various valves, humidification mechanism, fan, alarm, etc.
[0053] Optionally, the housing 10 is provided with cable holes 11 for the test leads of the product under test to pass through, so that relevant signals can be connected to the product under test and the external testing device through the test leads during testing. The number of cable holes 11 can be set to 1, 2, 3 or other numbers.
[0054] Optionally, the housing 10 is provided with a test hole 12, which allows various test accessories to enter the test chamber for accurate measurement of the product under test.
[0055] Optionally, the lid 20 and the chamber body 10 are hinged together. The environmental simulation test chamber 100 also includes an opening and closing drive mechanism 50. One end of the opening and closing drive mechanism 50 is rotatably connected to the chamber body 10, and the other end is rotatably connected to the lid 20. The opening and closing drive mechanism 50 can drive the lid 20 to open and close. That is, the opening and closing drive mechanism 50 can drive the lid 20 to rotate relative to the chamber body 10, so that the lid 20 switches between a first state with the chamber body 10 open and a second state with the chamber body 10 closed. When the lid 20 is in the first state, it is convenient for the installation and arrangement of the product under test. When the lid 20 is in the second state, the test chamber is in a relatively closed space. After the environmental simulation test chamber 100 is started, a relatively stable climatic environment is formed in this space to complete the test of the product under test. The opening and closing drive mechanism 50 can be an existing linear drive device such as a hydraulic cylinder, pneumatic cylinder, or electric actuator.
[0056] In order to maximize the opening angle of the cover 20 so that there is as much space as possible for the installation of the product under test, the hinge is located near the joint between the cover 20 and the body 10.
[0057] Optionally, the environmental simulation test chamber 100 also includes a limiting mechanism 40, which is disposed on the top of the chamber body 10. The limiting mechanism 40 is inclined towards the side of the chamber cover 20 to form a second limiting part 41. In the first state, the chamber cover 20 abuts against the second limiting part 41. The limiting mechanism 40 is used to support the chamber cover 20 when it is opened to its maximum position (the chamber 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 chamber cover 20 when it is in the first state.
[0058] Optionally, the limiting mechanism 40 also includes a flexible member 42, which is disposed on the outside of the second limiting part 41. The cover 20 can abut against the flexible member 42. The flexible member 42 is used to protect the surface of the cover 20 at the contact position with the second limiting part 41, so as to avoid wear on the surface of the cover 20 due to repeated use, which would affect the appearance and service life of the environmental simulation test chamber 100.
[0059] In this embodiment, the flexible component 42 is urethane, a new type of synthetic material that is between plastic and rubber. It combines the rigidity of plastic and the elasticity of rubber, and has excellent properties such as high strength, small compression deformation, wear resistance, oil resistance and aging resistance.
[0060] To prevent injury to operators or products from closing due to gravity if the opening / closing drive mechanism 50 fails after the lid 20 is opened, a counterweight is typically installed on the lid 20. This counterweight prevents the lid 20 from closing automatically once it is fully open relative to the box body 10. However, if an operator misoperates, such as accidentally activating the opening / closing drive mechanism 50 after the lid 20 is open, the counterweight will not be able to prevent the lid 20 from closing, potentially injuring the operator or the product.
[0061] To address the aforementioned issues, 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 mounted on the chamber 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 the chamber cover 20 will not close due to accidental activation of the opening and closing drive component by the operator when the chamber cover 20 is open, thereby avoiding injury to the operator or the product under test and improving the safety of the test process.
[0062] In this embodiment, the safety mechanism 30 is mounted on the limiting mechanism 40, which is highly integrated and easy to install.
[0063] like Figures 1-4 As shown, the bracket 31 includes two spaced-apart support portions 311, which are mounted on the limiting mechanism 40. Each support portion 311 has an insertion hole 3111. 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 hole 3111 and the fixing ring 21. By positioning the fixing ring 21 between the two support portions 311 and the safety pin 32 passing through the insertion hole 3111 and the fixing ring 21, the fixing ring 21 and the safety pin 32 can be prevented from separating.
[0064] Optionally, the cover 20 is also provided with a lifting ring 22. The structure and shape of the lifting ring 22 are the same as those of the fixing ring 21. When the environmental simulation test chamber 100 needs to be assembled or when the cover 20 needs to be disassembled and repaired, the lifting equipment can use the lifting ring 22 and the fixing ring 21 to lift, install or disassemble the cover 20.
[0065] Specifically, the safety pin 32 includes a main body 321 and a first limiting part 322. The first limiting part 322 is disposed at the end of the main body 321 and is set at an angle to the axis of the main body 321. The main body 321 passes through the insertion hole 3111, and the first limiting part 322 can abut against the side wall of one of the support parts 311. In use, the main body 321 is located at the bottom of the insertion hole 3111 under the action of gravity, and the first limiting part 322 can abut against the side wall of one of the support parts 311 to prevent the main body 321 from falling out of the insertion hole 3111. In this embodiment, the first limiting part 322 is perpendicular to the axis of the main body 321 to achieve a better limiting effect. In other embodiments, the first limiting part 322 and the axis of the main body 321 may also be set at other angles.
[0066] In this embodiment, to further prevent the main body 321 from dislodging from the insertion hole 3111, the diameter of the insertion hole 3111 is larger than the diameter of the main body 321, and smaller than the sum of the radial dimensions of the main body 321 and the first limiting part 322. To prevent the support part 311 from interfering with the installation of the safety pin 32, the support part 311 is also provided with a clearance hole 3112 communicating with the insertion hole 3111. The clearance hole 3112 is used for the first limiting part 322 to pass through. In this embodiment, the main body 321 is a cylindrical structure, and the insertion hole 3111 is a circular hole structure.
[0067] Optionally, the clearance hole 3112 is located above the insertion hole 3111. In actual use, the first limiting part 322 is kept upward, and the main body part 321 passes through the insertion hole 3111 of one of the support parts 311, the fixing ring 21, and the insertion hole 3111 of the other support part 311 in sequence. Then, the safety pin 32 rotates to the downward position of the first limiting part 322 due to the gravity of the first limiting part 322, thereby ensuring that the safety pin 32 will not be loosened due to the vibration during the operation of the environmental simulation test chamber 100.
[0068] Optionally, the safety mechanism 30 also includes a safety pin chain (not shown in the figure), one end of which is connected to the main body 321 and the other end of which is connected to the limiting mechanism 40. By providing the safety pin chain, the safety pin 32 can be prevented from being lost.
[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, it can be placed into the safety pin 32 placement hole 43 for easy access by the operator.
[0070] Optionally, the safety mechanism 30 also includes a detection element 33, which is mounted on the limiting mechanism 40. The detection element 33 is used to detect whether the safety pin 32 is installed on the bracket 31. The detection element 33 and the opening / closing drive mechanism 50 are respectively connected to the control room 62. When the cover 20 is opened and the safety pin 32 fixes the cover 20, the end of the safety pin 32 presses against the detection element 33. The detection element 33 transmits a signal that the cover 20 is in the open state to the control room 62. The control room 62 controls the opening / closing drive mechanism 50 to prevent it from closing the cover 20. Only after the safety pin 32 is removed can the opening / closing drive mechanism 50 close the cover 20, thereby further preventing accidental closure of the cover 20 and improving the safety of the environmental simulation test chamber 100. The detection element 33 is a proximity switch.
[0071] Optionally, the number of safety mechanisms 30 is at least two, and the safety mechanisms 30 and the limiting mechanisms 40 are arranged in a 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 cover 20 can be subjected to force balance, thereby more stably preventing the cover 20 from closing in the event of misoperation.
[0072] Note that in the description of this specification, the references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0073] The above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made 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, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.
Claims
1. An environmental simulation test chamber, characterized by, include: Box (10); The lid (20) is hinged to the box body (10), and a fixing ring (21) is provided on the lid (20); An opening and closing drive mechanism (50) is configured to drive the lid (20) to rotate relative to the box body (10) so that the lid (20) switches between a first state of opening the box body (10) and a second state of closing the box body (10); The safety mechanism (30) includes a bracket (31) and a safety pin (32). The bracket (31) is mounted on the housing (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).
2. Environmental simulation test chamber according to claim 1, characterized in that The bracket (31) includes two spaced-apart support portions (311), each support portion (311) having an insertion hole (3111). 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 hole (3111) and the fixing ring (21).
3. Environmental simulation test chamber according to claim 2, characterized in that The safety pin (32) includes: Main body (321): The first limiting part (322) is disposed at the end of the main body part (321) and is disposed at an angle to the axis of the main body part (321). The main body part (321) passes through the insertion hole (3111). The first limiting part (322) can abut against the side wall of one of the support parts (311).
4. Environmental simulation test chamber according to claim 3, characterized in that The support part (311) is also provided with a clearance hole (3112) communicating with the insertion hole (3111), and the clearance hole (3112) is used for the first limiting part (322) to pass through.
5. The environmental simulation chamber of claim 1, wherein The security mechanism (30) also includes: The detection element (33) is configured to detect whether the safety pin (32) is installed on the bracket (31), and the detection element (33) is signal-connected to the opening and closing drive mechanism (50).
6. The environmental simulation test chamber according to claim 1, characterized in that, The number of the safety mechanisms (30) is at least two, and the at least two safety mechanisms (30) are arranged at axial intervals along the safety pin (32).
7. Environmental simulation test chamber according to any of claims 1 to 6, characterized in that The environmental simulation test chamber also includes: A limiting mechanism (40) is provided with a second limiting part (41) inclined toward one side of the box cover (20). In the first state, the box cover (20) abuts against the second limiting part (41).
8. Environmental simulation chamber according to claim 7, characterized in that The limiting mechanism (40) further includes: A flexible element (42) is disposed on the outside of the second limiting part (41), and the box cover (20) can abut against the flexible element (42).
9. The environmental simulation chamber of claim 7, wherein, The limiting mechanism (40) has a placement hole (43) for placing the safety pin (32).
10. The environmental simulation chamber of claim 7, wherein, The security mechanism (30) also includes: A safety pin chain, one end of which is connected to the safety pin (32) and the other end of which is connected to the limiting mechanism (40).