Single-temperature zone and double-temperature zone mutual switching test box

Abstract

The utility model belongs to the test box technical field, concretely is a single temperature zone double temperature zone each other switching test box, including the box, both sides in the box are rotatably connected with the placing plate, the fixedly connected gear of pivot place between two placing plates and the box, two gears all are located the outside of the box, one side of the box is fixedly connected with the fixed frame, the utility model discloses compared with prior art, through the angle adjustment of placing plate and the on-off control of baffle to air outlet, can be switched between single temperature zone and double temperature zone mode fast, under double temperature zone mode, the placing plate divides and makes sample separation of different height, cooperates the zoning airflow control of independent temperature control unit circulating motor, evaporimeter, heater and baffle, forms the differentiating temperature environment, under single temperature zone mode, the placing plate resets to the same plane, and the baffle opens completely and makes airflow mix, realizes the overall temperature unity, need not to change the component to satisfy the demand of different sample to single temperature or double temperature test, improves the equipment versatility.

Description

Technical Field

[0001] This utility model relates to the field of test chamber technology, specifically a single-temperature zone and dual-temperature zone switching test chamber. Background Technology

[0002] With the advancement of technology and the needs of production, many products require simultaneous high-temperature and low-temperature tests on different parts of the product during testing, such as large valve components.

[0003] Chinese Patent Publication No. CN219864774U discloses a door sealing structure and a temperature test chamber, including a test chamber and a door installed on the test chamber. The surface of the test chamber is provided with a tight-fitting groove. A threaded motor shaft is installed on the surface of the test chamber. A baffle is fixedly installed on the side of the door, and a sliding plate is movably installed on the side of the baffle. A rubber ring is sealed between the sliding plate and the baffle. A slider is installed on the sliding plate. A threaded hole is provided on the slider.

[0004] In practical applications, after completing high and low temperature tests, it is necessary to continue with either high or low temperature tests. Traditional test chambers cannot meet this process requirement, requiring users to purchase two devices simultaneously, one for raising the temperature and the other for lowering it, which increases procurement costs and floor space. Based on this, this utility model designs a single-temperature zone and dual-temperature zone switching test chamber to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a single-temperature zone and dual-temperature zone switching test chamber.

[0006] To achieve the above objectives, a single-temperature zone and dual-temperature zone switching test chamber is designed, comprising a chamber body, with placement plates rotatably connected to both sides of the chamber body, and gears fixedly connected to the shafts connecting the two placement plates and the chamber body, with both gears located outside the chamber body. A fixing frame is fixedly connected to one side of the chamber body, and a connecting plate is slidably connected inside the fixing frame. Racks are fixedly connected to both ends of the connecting plate, and the two racks mesh with one side of each of the two gears.

[0007] Furthermore, a hydraulic cylinder is fixedly connected to the top of the fixing frame, and the output end of the hydraulic cylinder is fixedly connected to the middle part of the connecting plate.

[0008] Furthermore, a No. 1 mounting block is fixedly connected to both sides of the interior of the box, and the two No. 1 mounting blocks are respectively located below the two placement plates.

[0009] Furthermore, a mounting frame is fixedly connected to one side of the housing.

[0010] Furthermore, an air outlet and an air return outlet are provided at both the top and bottom of one side of the inner wall of the box, and both of the air outlets and air return outlets are connected to the mounting frame.

[0011] Furthermore, baffles are rotatably connected to the upper and lower parts of one side of the mounting frame. The two baffles are located on one side of the two air outlets, respectively. There is damping at the connection between the two baffles and the mounting frame. A knob is fixedly connected at the connection between the two baffles and the mounting frame. Both knobs are located outside the mounting frame.

[0012] Furthermore, two mounting blocks are fixedly connected to both sides inside the mounting frame, and the two mounting blocks are respectively located below the two baffles.

[0013] Furthermore, a circulation motor is installed at both the top and bottom of the mounting frame, and the two sets of circulation motors are located on one side of the baffle. An evaporator and a heater are installed at both the top and bottom inside the mounting frame, and a door is installed on one side of the housing.

[0014] Compared with the prior art, this utility model has the following advantages: 1. This utility model allows for rapid switching between single-temperature zone and dual-temperature zone modes by adjusting the angle of the placement plate and controlling the on / off state of the air outlet via the baffle. In dual-temperature zone mode, the placement plate is divided into different heights to separate samples. Combined with the independent temperature control unit, circulating motor, evaporator, heater, and baffle for zoned airflow control, differentiated temperature environments are formed. In single-temperature zone mode, the placement plate returns to the same plane, and the baffle is fully opened to mix the airflow, achieving overall temperature uniformity. This allows for meeting the single-temperature or dual-temperature testing needs of different samples without replacing any parts, improving the equipment's versatility.

[0015] 2. The drive of the placement plate of this utility model adopts a gear-rack engagement hydraulic cylinder drive, which has high transmission accuracy and stable power. Combined with the support of the No. 1 mounting block, it can avoid sample shaking or shaft deformation, and ensure stable bearing state.

[0016] 3. The drive components such as gears and fixing frames of this utility model are located outside the box, and the mounting frame integrates the temperature control unit and is fixed to the side of the box. None of them occupy the internal load-bearing space, making the layout of the placement plate area more compact. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the box in this utility model; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of the interior of the mounting frame in this utility model; Figure 5 This is a schematic diagram showing the positional relationship between the No. 2 mounting block and the mounting frame in this utility model; In the diagram: 1. Box body; 10. Mounting frame; 11. Box door; 12. Placement plate; 13. Mounting block No. 1; 14. Gear; 15. Fixing frame; 16. Connecting plate; 17. Rack; 18. Hydraulic cylinder; 19. Air outlet; 2. Baffle; 21. Knob; 22. Circulation motor; 23. Evaporator; 24. Heater; 25. Mounting block No. 2. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: In some embodiments, please refer to the appendix to the instruction manual. Figures 1 to 5 A single-temperature zone / dual-temperature zone switching test chamber includes a chamber body 1. Placement plates 12 are rotatably connected to both sides of the chamber body 1. Gears 14 are fixedly connected to the shafts connecting the two placement plates 12 and the chamber body 1. Both gears 14 are located outside the chamber body 1. A fixing frame 15 is fixedly connected to one side of the chamber body 1. A connecting plate 16 is slidably connected inside the fixing frame 15. Racks 17 are fixedly connected to both ends of the connecting plate 16. The two racks 17 mesh with one side of each of the two gears 14. A hydraulic cylinder 18 is fixedly connected above the fixing frame 15. The output end of the hydraulic cylinder 18 is fixedly connected to the middle of the connecting plate 16. Mounting blocks 13 are fixedly connected to both sides of the chamber body 1. The two mounting blocks 13 are located below the two placement plates 12.

[0019] In this embodiment, the hydraulic cylinder 18 drives the connecting plate 16 to slide the rack 17. By utilizing the meshing transmission between the rack 17 and the gear 14, the rotation of the two side placement plates 12 around the rotating shaft can be controlled synchronously, realizing the switching between the horizontal and inclined states of the placement plates 12. When dual temperature zones are required, the angle of the placement plates 12 can be adjusted to place the samples in different spatial areas within the chamber 1, avoiding mutual interference between samples in different temperature zones. When switching to a single temperature zone, the placement plates 12 can be reset to the same horizontal height to form a unified bearing plane, meeting the centralized testing needs of large-volume samples or batch samples without the need for additional replacement of bearing components, thus improving the scene adaptability of the equipment.

[0020] The gear 14 and rack 17 mesh with the hydraulic cylinder 18 for transmission, which has high transmission accuracy and stable driving force. It can control the flipping angle of the placement plate 12 and avoid sample shaking or falling due to transmission jamming. At the same time, the first mounting block 13 inside the box 1 provides stable support for the placement plate 12. When the placement plate 12 is in a horizontal load-bearing state, it can distribute the weight of the sample and prevent the rotating shaft from deforming due to long-term excessive force, thus extending the service life of the equipment and ensuring the stability and safety of the sample during the testing process.

[0021] The synchronous drive design improves operational efficiency and reduces manual intervention costs. The connecting plate 16 integrates the racks 17 on both sides for linkage. The two placement plates 12 can be synchronously flipped by a single hydraulic cylinder 18 without the need to adjust the structures on both sides separately, which simplifies the operation process. Compared with the traditional manual adjustment or split drive structure, this design reduces the number of operation steps and avoids positional deviation caused by asynchronous adjustment of the two placement plates 12. It ensures that the sample is subjected to balanced force during the switching process, reduces the error rate and labor intensity of manual operation. The gear 14 is set outside the box 1 to avoid occupying the internal load-bearing space, making the layout of the placement plates 12 in the box 1 more compact.

[0022] In some embodiments, please refer to the appendix to the instruction manual. Figures 1-5 This is a single-temperature zone / dual-temperature zone switching test chamber. A mounting frame 10 is fixedly connected to one side of the chamber body 1. Air outlets 19 and return air inlets are located at the top and bottom of one side of the inner wall of the chamber body 1, both communicating with the mounting frame 10. Two baffles 2 are rotatably connected to the top and bottom of one side of the inner side of the mounting frame 10. The two baffles 2 are located on one side of the two air outlets 19, respectively. Damping is present at the connection between the two baffles 2 and the mounting frame 10. A knob 21 is fixedly connected to each connection point. Both knobs 21 are located outside the mounting frame 10. Two mounting blocks 25 are fixedly connected to both sides inside the mounting frame 10. The two mounting blocks 25 are located below the two baffles 2 respectively. Circulation motors 22 are installed at the top and bottom of the mounting frame 10. The two sets of circulation motors 22 are located on one side of the baffle 2 respectively. Evaporators 23 and heaters 24 are installed at the top and bottom inside the mounting frame 10. A door 11 is installed on one side of the box body 1.

[0023] In this embodiment, the baffle 2 is used to switch the air outlet 19. The opening and closing of the upper and lower baffles 2 can be independently controlled by the knob 21. When a dual-temperature zone is required, one baffle 2 can be closed to block the airflow of the corresponding air outlet 19, and the airflow processed by the evaporator 23 or heater 24 can be delivered to a specific area inside the chamber 1 through the other air outlet 19. Combined with the independent upper and lower circulation motors 22 in the mounting frame 10, two areas with different temperatures are formed inside the chamber 1. When switching to a single-temperature zone, both baffles 2 are opened so that the upper and lower air outlets 19 output airflow at the same time. By uniformly controlling the evaporator 23 and heater 24, the overall temperature inside the chamber 1 can be kept consistent, and diverse test scenarios can be met without replacing any parts.

[0024] The connection between the baffle 2 and the mounting frame 10 is equipped with damping, which, together with the knob 21, can stably fix the opening and closing state of the baffle 2, preventing the baffle 2 from moving on its own due to airflow impact and changing the opening and closing of the air outlet 19; the second mounting block 25 provides support when the baffle 2 is in the closed or specific open / closed position, further enhancing the stability of the baffle 2, ensuring the accuracy of airflow control in the temperature zone, and reducing temperature fluctuations. The second mounting block 25 plays a positioning role. When the baffle 2 contacts the second mounting block 25, the operator can stop rotating the knob 21.

[0025] The mounting frame 10 integrates components such as baffle 2, circulating motor 22, evaporator 23, and heater 24, and is fixed to one side of the chamber 1, without occupying the internal sample placement space; the knob 21 is located outside the mounting frame 10, and the operator can directly control the opening and closing of the baffle 2 through the knob 21, and complete the temperature zone switching without opening the chamber door 11, reducing the temperature loss inside the chamber 1, reducing energy consumption, and simplifying the operation process.

[0026] The circulating motor 22, evaporator 23, heater 24 and corresponding baffle 2 and air outlet 19 at the top and bottom of the mounting frame 10 form independent units, corresponding to different areas inside the housing 1.

[0027] Working principle: The driving power is provided by the hydraulic cylinder 18 on the fixed frame 15. When the hydraulic cylinder 18 extends or retracts, it drives the connecting plate 16 to slide up and down within the fixed frame 15.

[0028] The racks 17 at both ends of the connecting plate 16 move synchronously, and through meshing with the gears 14 outside the housing 1, drive the two side placement plates 12 to rotate around the rotating shaft, thereby realizing the adjustment of the angle or height of the placement plates 12.

[0029] When switching to dual-temperature zone, the placement plate 12 can be adjusted to different heights, such as the upper and lower layers being separated, so that the samples are placed in different spaces within the chamber 1; when switching to single-temperature zone, the placement plate 12 is reset to the same horizontal height and supported by the first mounting block 13 to form a unified bearing plane, ensuring that the samples are in the same area.

[0030] The upper and lower independent units within the mounting frame 10 include a circulating motor 22, an evaporator 23, and a heater 24, which correspond to the upper and lower air outlets 19 on the inner wall of the housing 1, respectively. The opening and closing of the air outlets 19 are controlled by the baffle 2.

[0031] In dual-temperature zone mode, one side baffle 2 can be closed to block the airflow of the corresponding air outlet 19, and only the air outlet 19 on the other side can deliver airflow that has been cooled by the evaporator 23 or heated by the heater 24 to a specific area. The circulation motor 22 drives the airflow to circulate, so that the corresponding area maintains the set temperature, forming two differentiated temperature zones.

[0032] In single-temperature zone mode, the two side baffles 2 are opened and the upper and lower air outlets 19 output airflow simultaneously. The airflow temperature is made consistent by uniformly controlling the evaporator 23 and heater 24. After mixing, the airflow fills the interior of the chamber 1, achieving overall temperature uniformity.

[0033] The damping connection between the baffle 2 and the mounting frame 10, and the support of the second mounting block 25, ensure the stability of the baffle 2 and prevent changes in the on / off state caused by airflow impact.

[0034] When the door 11 on one side of the enclosure 1 is closed, a sealed space is formed, reducing heat exchange with the outside. Combined with the aforementioned load adjustment and airflow control, this ensures temperature stability in single / dual temperature zone modes.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art. The standard parts used can be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the circuit connection adopts conventional connection methods in the existing technology, which will not be described in detail here.

[0036] This utility model is not limited to the above-described embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of this utility model shall be considered equivalent substitutions and shall be included within the protection scope of this utility model.

Claims

1. A single-temperature zone / dual-temperature zone switching test chamber, comprising a chamber body (1), characterized in that: The two sides inside the box (1) are rotatably connected to a placement plate (12). Gears (14) are fixedly connected at the pivot connecting the two placement plates (12) and the box (1). The two gears (14) are located outside the box (1). A fixing frame (15) is fixedly connected to one side of the box (1). A connecting plate (16) is slidably connected inside the fixing frame (15). Racks (17) are fixedly connected to both ends of the connecting plate (16). The two racks (17) mesh with one side of the two gears (14) respectively.

2. The single-temperature zone / dual-temperature zone switching test chamber according to claim 1, characterized in that, A hydraulic cylinder (18) is fixedly connected to the top of the fixed frame (15), and the output end of the hydraulic cylinder (18) is fixedly connected to the middle part of the connecting plate (16).

3. The single-temperature zone / dual-temperature zone switching test chamber according to claim 2, characterized in that, The two sides of the interior of the box (1) are fixedly connected to a No. 1 mounting block (13), and the two No. 1 mounting blocks (13) are respectively located below the two placement plates (12).

4. The single-temperature zone / dual-temperature zone switching test chamber according to claim 1, characterized in that, A mounting frame (10) is fixedly connected to one side of the box (1).

5. The single-temperature zone / dual-temperature zone switching test chamber according to claim 4, characterized in that, The inner wall of the box (1) has an air outlet (19) and a return air outlet at two locations on the upper and lower sides, and both air outlets (19) and return air outlets are connected to the mounting frame (10).

6. The single-temperature zone / dual-temperature zone switching test chamber according to claim 5, characterized in that, The mounting frame (10) has two rotatably connected baffles (2) on the upper and lower sides of one side. The two baffles (2) are located on one side of the two air outlets (19). There is damping at the connection between the two baffles (2) and the mounting frame (10). A knob (21) is fixedly connected at the connection between the two baffles (2) and the mounting frame (10). The two knobs (21) are located outside the mounting frame (10).

7. The single-temperature zone / dual-temperature zone switching test chamber according to claim 6, characterized in that, The mounting frame (10) has two mounting blocks (25) fixedly connected to both sides inside, and the two mounting blocks (25) are located below the two baffles (2).

8. The single-temperature zone / dual-temperature zone switching test chamber according to claim 7, characterized in that, The mounting frame (10) is equipped with two circulating motors (22) at the top and bottom. The two sets of circulating motors (22) are located on one side of the baffle (2). The mounting frame (10) is equipped with an evaporator (23) and a heater (24) at the top and bottom. The box body (1) is equipped with a box door (11) on one side.

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