A liquid nitrogen temperature test chamber

Abstract

The utility model discloses a liquid nitrogen temperature test case, including the box body for cryogenic testing product, the positive face of box body swingly installed sealed protection door, and the positive face one end of box body is installed control panel, and the inside upper and lower end of box body is installed with support frame, and the both ends fixed of support frame have extension board, and the one end of extension board is installed with mounting seat, and mounting seat is fixed on the inner wall of box body, wherein, the both ends of top center of support frame are installed with fixed seat, and the top center of fixed seat is equipped with the notch of opening, and the both ends fixed of the inner surface of notch have telescopic cylinder, the utility model through setting adjustable support mechanism who comprises support frame, telescopic cylinder, telescopic link and snap pin etc, make the height of bracket and horizontal position all can conveniently, flexible adjustment, not only realized the quick accurate positioning and stable support of sample holder, more remarkable promotion test case to different size, shape sample's adaptability and space utilization, thereby effectively optimized the test procedure and improved overall test efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid nitrogen temperature test chambers, specifically a liquid nitrogen temperature test chamber. Background Technology

[0002] A liquid nitrogen temperature test chamber is a high-precision test device that uses liquid nitrogen (-196℃) as a cooling source. By precisely controlling its vaporization and injection process and combining it with electric heating to achieve dynamic temperature balance, it can quickly create and stably maintain extreme low temperature environments ranging from -150℃ to -196℃ or even lower. It is mainly used to assess the performance, reliability and adaptability of products and materials under ultra-low temperature conditions.

[0003] Existing liquid nitrogen temperature test chambers mostly have fixed sample racks with non-adjustable heights, which leads to problems such as inconvenient installation and operation, low utilization of internal space, and difficulty in optimizing temperature uniformity when testing samples of different sizes, shapes, or requiring specific placement angles. Utility Model Content

[0004] The purpose of this invention is to provide a liquid nitrogen temperature test chamber. This invention uses an adjustable support mechanism consisting of a support frame, telescopic cylinder, telescopic rod, and locking pins to allow for convenient and flexible adjustment of the height and horizontal position of the support frame. This not only achieves rapid and accurate positioning and stable support of the sample rack, but also significantly improves the adaptability of the test chamber to samples of different sizes and shapes and the space utilization rate, thereby effectively optimizing the testing process and improving the overall testing efficiency; thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A liquid nitrogen temperature test chamber includes a chamber for low-temperature testing products. A sealed protective door is movably installed on the front of the chamber. A control panel is installed at one end of the front of the chamber. A support frame is installed at the upper and lower ends inside the chamber. Extension plates are fixed at both ends of the support frame. A mounting base is installed at one end of the extension plate. The mounting base is fixed to the inner wall of the chamber.

[0007] The support frame has fixed seats installed at both ends of the top center. The fixed seats have a slot at the top center. Telescopic cylinders are fixed at both ends of the inner surface of the slot. Telescopic cylinders have a telescopic cavity at the top. Telescopic rods are slidably connected inside the telescopic cavity. An insertion hole is opened at the center of the outer side of the telescopic cylinder. Several sets of pin holes are provided below the surface of the telescopic rod. A locking pin is provided on the outer side of the telescopic cylinder. The locking pin passes through the insertion hole and engages with the pin hole provided on the telescopic rod.

[0008] The top of the telescopic pole is fitted with a bracket for placing the product.

[0009] Preferably, one end of the surface of the mounting base is provided with a mounting groove, an extension plate is engaged inside the mounting groove, and column grooves are provided at both ends of the inner surface of the mounting groove, with locking columns engaged inside the column grooves.

[0010] Preferably, the mounting groove is adapted to the extension plate, and the column groove is adapted to the locking column.

[0011] Preferably, the locking pin is fixedly installed on the bottom of the extension plate, and a handle for hand gripping is fixed on the top of the extension plate.

[0012] Preferably, the top center of the support frame is provided with several sets of through holes, and the bottom of the fixing seat is fixedly installed with several sets of fixing columns.

[0013] Preferably, the fixing post is snapped into a corresponding fixing groove on the inner surface of the support frame, and the through hole is located at the inner end of the fixing seat, so that the fixing post and the fixing groove are compatible.

[0014] Preferably, a connecting column is fixedly installed on the top of the telescopic rod, and the connecting column is snapped into a corresponding connecting groove at the bottom of the bracket, with the connecting groove and the connecting column being compatible.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model features an adjustable support mechanism consisting of a support frame, telescopic cylinder, telescopic rod, and locking pins. This allows for convenient and flexible adjustment of the height and horizontal position of the bracket, enabling rapid and accurate positioning and stable support of the sample rack. It also significantly improves the adaptability of the test chamber to samples of different sizes and shapes, as well as the space utilization rate, thereby effectively optimizing the testing process and improving overall testing efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure without the supporting frame is shown.

[0020] Figure 4 This is a schematic diagram of the separate structure of the support frame, fixing seat and bracket of this utility model;

[0021] Figure 5 for Figure 4 A schematic diagram of the structure viewed from below;

[0022] Figure 6 This is a schematic diagram of the separation structure of the telescopic cylinder, telescopic rod, and locking pin of this utility model.

[0023] The following are the labels in the diagram: 1. Box body; 101. Sealed protective door; 2. Control panel; 3. Mounting base; 4. Support frame; 401. Through hole; 5. Extension plate; 501. Locking post; 502. Post groove; 6. Fixing base; 601. Fixing post; 602. Fixing groove; 7. Telescopic cylinder; 701. Telescopic rod; 702. Locking pin; 8. Connecting post; 801. Connecting groove; 9. Bracket. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6 This utility model provides a technical solution:

[0026] A liquid nitrogen temperature test chamber includes a chamber 1 for low-temperature testing products. A sealed protective door 101 is movably installed on the front of the chamber 1. A control panel 2 is installed at one end of the front of the chamber 1. A support frame 4 is installed at the upper and lower ends inside the chamber 1. Extension plates 5 are fixed at both ends of the support frame 4. A mounting base 3 is installed at one end of the extension plate 5. The mounting base 3 is fixed to the inner wall of the chamber 1.

[0027] The principle of the liquid nitrogen temperature test chamber: Liquid nitrogen (boiling point -196℃) is used as the refrigerant. Its vaporization and injection rate are precisely adjusted through the control panel 2, and dynamic balance compensation is performed by the electric heating system built into the chamber 1. This quickly creates a uniform and stable ultra-low temperature environment (usually -150℃ to -196℃) in the chamber 1 to simulate extreme low temperature conditions to test various performance indicators of products or materials.

[0028] Among them, the top center of the support frame 4 is equipped with fixed seats 6 at both ends. The top center of the fixed seat 6 is provided with a slot. The inner surface of the slot is fixed with telescopic cylinders 7 at both ends. The top of the telescopic cylinder 7 is provided with a telescopic cavity. The telescopic rod 701 is slidably connected inside the telescopic cavity. The outer center of the telescopic cylinder 7 is provided with an insertion hole. Several sets of pin holes are provided below the surface of the telescopic rod 701. The outer side of the telescopic cylinder 7 is provided with a locking pin 702. The locking pin 702 passes through the insertion hole and is locked into the pin hole provided on the telescopic rod 701.

[0029] The top of the telescopic rod 701 is equipped with a bracket 9 for placing products.

[0030] This utility model, by setting up an adjustable support mechanism consisting of a support frame 4, a telescopic cylinder 7, a telescopic rod 701, and a locking pin 702, allows for convenient and flexible adjustment of the height and horizontal position of the bracket 9. This not only achieves rapid and accurate positioning and stable support of the sample rack, but also significantly improves the adaptability of the test chamber to samples of different sizes and shapes and the space utilization rate, thereby effectively optimizing the testing process and improving the overall testing efficiency.

[0031] Furthermore, by manually pulling the telescopic rod 701, it slides within the telescopic cavity of the telescopic cylinder 7. Several sets of pin holes on the surface of the telescopic rod 701 are matched and engaged with the locking pins 702 that penetrate the insertion holes of the telescopic cylinder 7, thereby achieving rapid positioning and mechanical locking of the bracket 9 at different heights; conversely, pressing down can lower the height of the bracket 9.

[0032] The mounting base 3 has a mounting groove at one end of its surface, and an extension plate 5 is engaged inside the mounting groove. The inner surface of the mounting groove has post grooves 502 at both ends, and post 501 is engaged inside the post grooves 502. The mounting groove and the extension plate 5 are compatible, and the post grooves 502 and the post 501 are compatible. The post 501 is fixedly mounted on the bottom of the extension plate 5, and a handle for hand gripping is fixed to the top of the extension plate 5.

[0033] By gripping the handle, the extension plate 5 on the bracket 9 is raised, so that the extension plate 5 can be moved out of the mounting slot provided on the mounting base 3. At the same time, the locking post 501 provided at the bottom of the extension plate 5 disengages from the post slot 502, thereby facilitating the removal of the support frame 4. Conversely, by operating in the opposite direction, it can be quickly installed.

[0034] The top center of the support frame 4 has several sets of through holes 401, which facilitates the airflow of the cooling system inside the chamber 1 to uniformly cool the product at low temperatures. Several sets of fixing posts 601 are fixedly installed at the bottom of the fixing base 6. The fixing posts 601 are snapped into the corresponding fixing grooves 602 on the inner surface of the support frame 4. The through holes 401 are located at the inner end of the fixing base 6, and the fixing posts 601 and fixing grooves 602 are compatible.

[0035] By providing a fixing post 601 and a fixing groove 602, it is easy to remove the fixing seat 6 from the support frame 4 for replacement.

[0036] A connecting post 8 is fixedly installed on the top of the telescopic rod 701. The connecting post 8 is snapped into a corresponding connecting groove 801 on the bottom of the bracket 9. The connecting groove 801 and the connecting post 8 are compatible. By setting the connecting post 8 and the connecting groove 801, it is easy to remove the bracket 9 from the telescopic rod 701 for replacement and cleaning.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid nitrogen temperature test chamber characterized by: The product includes a housing (1) for low-temperature testing. A sealed protective door (101) is movably installed on the front of the housing (1). A control panel (2) is installed at one end of the front of the housing (1). A support frame (4) is installed at the upper and lower ends inside the housing (1). An extension plate (5) is fixed at both ends of the support frame (4). A mounting base (3) is installed at one end of the extension plate (5). The mounting base (3) is fixed to the inner wall of the housing (1). Among them, the top center of the support frame (4) is equipped with fixed seats (6) at both ends. The top center of the fixed seat (6) is provided with a slot. The inner surface of the slot is fixed with telescopic cylinders (7) at both ends. The top of the telescopic cylinder (7) is provided with a telescopic cavity. The telescopic cylinder (701) is slidably connected inside the telescopic cavity. The outer center of the telescopic cylinder (7) is provided with an insertion hole. Several sets of pin holes are provided below the surface of the telescopic rod (701). The outer side of the telescopic cylinder (7) is provided with a locking pin (702). The locking pin (702) passes through the insertion hole and is locked into the pin hole provided on the telescopic rod (701). The top of the telescopic pole (701) is fitted with a bracket (9) for placing the product.

2. The liquid nitrogen temperature test chamber of claim 1, wherein: The mounting base (3) has a mounting groove at one end of its surface, and an extension plate (5) is engaged inside the mounting groove. The inner surface of the mounting groove has column grooves (502) at both ends, and a locking post (501) is engaged inside the column groove (502).

3. The liquid nitrogen temperature test chamber of claim 2, wherein: The mounting groove is adapted to the extension plate (5), and the column groove (502) is adapted to the locking column (501).

4. The liquid nitrogen temperature test chamber of claim 3, wherein: The locking post (501) is fixedly installed on the bottom of the extension plate (5), and the top of the extension plate (5) is fixed with a handle for hand gripping.

5. A liquid nitrogen temperature test chamber according to claim 1, characterized in that: The top center of the support frame (4) is provided with several sets of through holes (401), and the bottom of the fixing seat (6) is fixedly installed with several sets of fixing columns (601).

6. A liquid nitrogen temperature test chamber according to claim 5, characterized in that: The fixing post (601) is snapped into the corresponding fixing groove (602) on the inner surface of the support frame (4), and the through hole (401) is located at the inner end of the fixing seat (6). The fixing post (601) and the fixing groove (602) are compatible.

7. A liquid nitrogen temperature test chamber according to claim 1, characterized in that: A connecting column (8) is fixedly installed on the top of the telescopic rod (701). The connecting column (8) is snapped into the corresponding connecting groove (801) at the bottom of the bracket (9). The connecting groove (801) and the connecting column (8) are compatible.

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