A low temperature test chamber

Abstract

This utility model discloses a low-temperature test chamber, belonging to the field of low-temperature test chambers. The chamber includes a chamber body and a door. The inner cavity of the chamber body is provided with multiple perforated support plates. Two fixing slots are symmetrically opened on both sides of the inner cavity. An adjustment and fixing mechanism is installed on the perforated support plates relative to the fixing slots. The adjustment and fixing mechanism includes four locking blocks and elastic components symmetrically installed with the locking blocks. A linkage plate is installed on the inner side of two adjacent locking blocks. The adjustment and fixing mechanism allows for the adjustment and fixing of the locking blocks' positions. By locking the locking blocks into the corresponding fixing slots, the internal space of the chamber can be arranged. This allows for the increase or decrease of the number of perforated support plates according to the volume and quantity of the samples to be tested, solving the problem of inflexible spatial layout in existing technologies.

Description

Technical Field

[0001] This utility model relates to the field of low temperature test chambers, and more specifically, to a low temperature test chamber. Background Technology

[0002] A low-temperature test chamber is a specialized device that can precisely control and maintain a specific low-temperature environment (typically tens of degrees below zero to hundreds of degrees below zero) in a sealed space. It is used to conduct low-temperature tolerance, stability and other performance tests and related scientific experiments on various products or samples such as electronics, electrical appliances, materials, and biological materials.

[0003] The internal space of existing low-temperature test chambers is mostly an integrated fixed structure, or simply divided by one or two fixed partitions. It is impossible to flexibly adjust the spatial layout according to the height, width, quantity and other specifications of the samples. As a result, when testing multiple samples with large differences in volume, the fixed space easily leads to some areas being idle and insufficient space utilization. Utility Model Content

[0004] 1. Technical problems to be solved In view of the problems existing in the prior art, the purpose of this utility model is to provide a low temperature test chamber that can adjust and divide the space inside the chamber according to the volume and quantity of the sample to be tested.

[0005] 2. Technical Solution To solve the above problems, the present invention adopts the following technical solution.

[0006] A low-temperature test chamber includes a chamber body and a door. The inner cavity of the chamber body is provided with multiple mesh receiving plates. Two fixing grooves are symmetrically opened on both sides of the inner cavity of the chamber body. An adjustment and fixing mechanism is installed on the mesh receiving plate relative to the fixing groove. The adjustment and fixing mechanism includes four locking blocks and elastic components symmetrically installed with the locking blocks. A linkage plate is installed on the inner side of two adjacent locking blocks, and a first drive plate and a second drive plate are respectively installed on the opposite sides of the two linkage plates. A drive component is provided at the connection between the first drive plate and the second drive plate.

[0007] Furthermore, the four snap-fit ​​blocks are slidably connected to the four corners of the lower surface of the mesh receiving plate, and the snap-fit ​​blocks and the fixing grooves are used in conjunction.

[0008] Furthermore, the elastic component includes a cavity rod fixedly installed at the bottom of the mesh receiving plate, and a sliding plate slidably connected to the inner wall of the cavity rod. A connecting rod slidably connected to the cavity rod is fixedly connected to one side of the sliding plate. One end of the connecting rod is fixedly connected to the snap-fit ​​block. A spring is provided in the inner cavity of the cavity rod, and the two ends of the spring are fixedly connected to the side of the sliding plate and the inner wall of the cavity rod, respectively.

[0009] Furthermore, the driving component includes a gear disposed inside the first driving plate and the second driving plate, and a plurality of racks are installed on the inner sides of the first driving plate and the second driving plate relative to the gear, and a rotating rod is fixedly sleeved through the surface of the gear.

[0010] Furthermore, a mounting base is fixedly installed at the bottom of the mesh receiving plate, and the end of the rotating rod passes through and is rotatably sleeved inside the mounting base. A handwheel is fixedly connected to one end of the rotating rod.

[0011] Furthermore, there are two mounting bases, which are symmetrically arranged at both ends of the rotating rod.

[0012] Furthermore, both sides of the first drive plate and the second drive plate are provided with limiting grooves, and a U-shaped limiting plate is slidably engaged inside the limiting groove.

[0013] 3. Beneficial Effects Compared with existing technologies, the advantages of this utility model are: (1) This solution utilizes an adjustment and fixing mechanism to control and fix the position of the snap-fit ​​block. By snapping the snap-fit ​​block into the fixing slot at the corresponding position, the size of the space inside the box can be arranged. In this way, the number of mesh receiving plates can be increased or decreased according to the volume and quantity of the sample to be tested, thus solving the problem of the inability to flexibly adjust the spatial layout in the prior art.

[0014] (2) This solution utilizes the elastic force of the elastic component and the meshing between the gear, the first drive plate and the second drive plate to achieve double fixation of the snap-fit ​​block, preventing it from detaching from the inside of the fixing groove and increasing the stability of the mesh receiving plate after installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the mesh receiving plate and the adjustment and fixing mechanism in this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the elastic component in this utility model; Figure 4In this utility model Figure 2 Schematic diagram of the structure at point A in the middle; Figure 5 In this utility model Figure 1 Schematic diagram of the structure at point B.

[0016] Explanation of the labels in the diagram: 1. Box body; 2. Box door; 3. Mesh support plate; 4. Fixing groove; 5. Adjustment and fixing mechanism; 51. Snap-fit ​​block; 52. Elastic component; 53. Linkage plate; 54. First drive plate; 55. Second drive plate; 56. Drive component; 521. Hollow rod; 522. Sliding plate; 523. Connecting rod; 524. Spring; 561. Gear; 562. Rack; 563. Rotating rod; 564. Mounting base; 565. Handwheel; 566. Limiting groove; 567. U-shaped limiting plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Example 1: Please see Figure 1-5A low-temperature test chamber includes a chamber body 1 and a door 2. The inner cavity of the chamber body 1 is provided with multiple perforated support plates 3. Two fixing slots 4 are symmetrically opened on both sides of the inner cavity of the chamber body 1. Adjustment and fixing mechanisms 5 are installed on the perforated support plates 3 relative to the fixing slots 4. The position of the perforated support plates 3 can be adjusted by setting the fixing slots 4 and the adjustment and fixing mechanisms 5. The adjustment and fixing mechanism 5 includes four locking blocks 51 and elastic components 52 symmetrically installed with the locking blocks 51. A linkage plate 53 is installed on the inner side of two adjacent locking blocks 51. A first drive plate 54 and a second drive plate 55 are respectively installed on the opposite sides of the two linkage plates 53. A driving component 56 is provided at the connection between the first driving plate 54 and the second driving plate 55. By providing the driving component 56, the first driving plate 54 and the second driving plate 55 can be adjusted simultaneously to make them move in opposite directions. When they move in opposite directions, under the connection of the linkage plate 53, the four snap-fit ​​blocks 51 can be disengaged from the fixing slots 4 to complete the disassembly of the mesh receiving plate 3. At the same time, the elastic component 52 is compressed. When they move in opposite directions, the four snap-fit ​​blocks 51 can be inserted into the four fixing slots 4 respectively. Under the elastic force of the elastic component 52, the snap-fit ​​blocks 51 can be fixed, thereby completing the installation and fixing of the mesh receiving plate 3.

[0021] The four snap-fit ​​blocks 51 are slidably connected to the four corners of the lower surface of the mesh receiving plate 3. The snap-fit ​​blocks 51 and the fixing grooves 4 work together to limit the four corners of the mesh receiving plate 3, thereby increasing the stability of the mesh receiving plate 3 after installation.

[0022] Furthermore, the elastic component 52 includes a cavity rod 521 fixedly installed at the bottom of the mesh receiving plate 3, and a sliding plate 522 slidably connected to the inner wall of the cavity rod 521. A connecting rod 523 slidably connected to the cavity rod 521 is fixedly connected to one side of the sliding plate 522. One end of the connecting rod 523 is fixedly connected to the snap-fit ​​block 51. A spring 524 is provided in the inner cavity of the cavity rod 521. The two ends of the spring 524 are fixedly connected to the side of the sliding plate 522 and the inner wall of the cavity rod 521, respectively. The driving component 56 includes a gear 561 disposed inside the first driving plate 54 and the second driving plate 55. Multiple racks 562 are installed on the inner sides of the first driving plate 54 and the second driving plate 55 at positions relative to the gear 561. A rotating rod 563 is fixedly sleeved through the surface of the gear 561.

[0023] Specifically, when adjusting the position of the mesh receiving plate 3, firstly, by rotating the rotating rod 563 in the forward direction, under the meshing connection of the rack 562, the first drive plate 54 and the second drive plate 55 can move downward. Under the connection of the linkage plate 53, the locking block 51 can extend out of the fixing groove 4. At the same time, during the extension of the locking block 51, it will squeeze the connecting rod 523. Under the connection of the sliding plate 522, the spring 524 is compressed. When the locking block 51 disengages from the fixing groove 4, the removal of the mesh receiving plate 3 is completed. When installing the mesh receiving plate 3, place the mesh receiving plate 3 in the corresponding fixing groove 4, and then insert the snap-fit ​​block 51 into the corresponding fixing groove 4 by rotating the rotating rod 563 in the opposite direction and under the action of the spring 524's restoring force. Through the elastic force of the elastic component 52 and the meshing between the gear 561, the first drive plate 54 and the second drive plate 55, the snap-fit ​​block 51 can be double-fixed, preventing it from detaching from the fixing groove 4 and increasing the stability of the mesh receiving plate 3 after installation.

[0024] The bottom of the mesh receiving plate 3 is fixedly installed with a mounting base 564. The end of the rotating rod 563 passes through and is rotatably sleeved inside the mounting base 564. One end of the rotating rod 563 is fixedly connected to a handwheel 565. By setting the mounting base 564, the rotating rod 563 can be supported. By setting the handwheel 565, the rotating rod 563 can be easily rotated. There are two mounting bases 564, which are symmetrically arranged at both ends of the rotating rod 563 to increase the stability of the rotating rod 563 when rotating.

[0025] It should also be noted that both sides of the first drive plate 54 and the second drive plate 55 are provided with limiting grooves 566. U-shaped limiting plates 567 are slidably engaged inside the limiting grooves 566, which can limit the first drive plate 54 and the second drive plate 55, so that the meshing between the first drive plate 54, the second drive plate 55, the gear 561 and the rack 562 is tighter, and loosening is prevented.

[0026] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A low-temperature test chamber, comprising a chamber body (1) and a door (2), characterized in that: The inner cavity of the box (1) is provided with multiple mesh support plates (3), and two fixing grooves (4) are symmetrically opened on both sides of the inner cavity of the box (1). An adjustment and fixing mechanism (5) is installed on the mesh support plate (3) relative to the fixing groove (4). The adjustment and fixing mechanism (5) includes four snap-fit ​​blocks (51) and elastic components (52) symmetrically installed with the snap-fit ​​blocks (51). A linkage plate (53) is installed on the inner side of two adjacent snap-fit ​​blocks (51). A first drive plate (54) and a second drive plate (55) are respectively installed on the opposite sides of the two linkage plates (53). A drive component (56) is provided at the connection between the first drive plate (54) and the second drive plate (55).

2. A low-temperature test chamber according to claim 1, characterized in that: The four snap-fit ​​blocks (51) are slidably connected to the four corners of the lower surface of the mesh receiving plate (3), and the snap-fit ​​blocks (51) and the fixing grooves (4) are used in conjunction.

3. A low-temperature test chamber according to claim 1, characterized in that: The elastic component (52) includes a cavity rod (521) fixedly installed at the bottom of the mesh receiving plate (3) and a sliding plate (522) slidably connected to the inner wall of the cavity rod (521). A connecting rod (523) slidably connected to the cavity rod (521) is fixedly connected to one side of the sliding plate (522). One end of the connecting rod (523) is fixedly connected to the snap-fit ​​block (51). A spring (524) is provided in the inner cavity of the cavity rod (521). The two ends of the spring (524) are fixedly connected to the side of the sliding plate (522) and the inner wall of the cavity rod (521), respectively.

4. A low-temperature test chamber according to claim 1, characterized in that: The drive component (56) includes a gear (561) disposed inside the first drive plate (54) and the second drive plate (55). Multiple racks (562) are installed on the inner sides of the first drive plate (54) and the second drive plate (55) relative to the gear (561). A rotating rod (563) is fixedly sleeved through the surface of the gear (561).

5. A low-temperature test chamber according to claim 4, characterized in that: The bottom of the mesh receiving plate (3) is fixedly installed with a mounting base (564), the end of the rotating rod (563) passes through and is rotatably sleeved inside the mounting base (564), and a handwheel (565) is fixedly connected to one end of the rotating rod (563).

6. A low-temperature test chamber according to claim 5, characterized in that: There are two mounting bases (564), and the two mounting bases (564) are symmetrically arranged at both ends of the rotating rod (563).

7. A low-temperature test chamber according to claim 1, characterized in that: Both sides of the first drive plate (54) and the second drive plate (55) are provided with limiting grooves (566), and a U-shaped limiting plate (567) is slidably engaged inside the limiting grooves (566).

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