Test rack for cold and hot impact test box

Abstract

The utility model provides a test rack for a cold and hot impact test box, and aims to solve the problem of fixation caused by deformation of the test box under temperature change in the prior art. The test rack comprises an outer frame which is fixedly connected with uniformly distributed fixing structures and is composed of an adjusting ball, a connecting rod and a limiting plate. One end of the connecting rod is connected with the outer frame, the other end of the connecting rod is connected with the outer shell, and the adjusting ball is arranged in the outer shell and fixed to the limiting plate through the fixing rod. A reset spring and an adjusting plate are arranged in the outer shell so as to adapt to the position change of the adjusting ball. A locking ring, a locking bolt and a movable groove corresponding to the fixing rod are arranged outside the outer shell. The limiting plates are X-shaped fixing rods, the two ends of each limiting plate are connected with rubber pads, and the inner fixing blocks are connected with the adjusting balls and provided with clamping grooves. The design allows the test rack to adapt to the volume change of the test box, reduces the sample damage risk, improves the test efficiency and flexibility, and ensures the test accuracy and reliability.

Description

TECHNICAL FIELD

[0001] The utility model provides a test frame belongs to cold and hot impact test box technical field, especially relates to a test frame for cold and hot impact test box. BACKGROUND

[0002] A cold and hot impact test box is a kind of experimental equipment for simulating the performance and durability of product under extreme temperature change, it can quickly and alternately expose sample to high temperature and low temperature environment to test the adaptability and stability of material, spare part or whole machine when temperature changes sharply.This test box can heat and cool sample periodically according to preset temperature change curve, so as to evaluate its reaction under extreme temperature difference condition that may be encountered in actual use, ensure the reliability and safety of product under extreme climate condition.

[0003] The existing cold and hot impact test box may be deformed to a certain extent due to the rapid change of internal temperature and the effect of high temperature environment during use.The rigid connection structure is adopted in most test frames, and this structure cannot adapt to the deformation demand of test box under temperature change, which limits the performance of test box under extreme temperature condition. UTILITY MODEL CONTENT

[0004] In order to make up for the deficiency of prior art, a test frame for cold and hot impact test box is provided, which solves the problem that rigid connection structure cannot adapt to the deformation demand of test box under temperature change.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a test frame for cold and hot impact test box, including outer frame, the upper portion of outer frame is fixedly connected with several evenly distributed fixed structures, fixed structure includes several adjusting balls, connecting rod, limiting plate;

[0006] Connecting rod and outer frame are connected correspondingly, the other end of connecting rod is connected with outer shell body, adjusting ball is placed in outer shell body, and the side of adjusting ball is fixedly connected with limiting plate through fixed rod;

[0007] The inside of outer shell body is fixedly connected with adjusting plate close to adjusting ball through several evenly distributed return springs.

[0008] Preferably, the outer shell body is provided with a locking ring penetrating through itself, the locking ring is provided with a locking bolt, and the side of the outer shell body close to the fixed rod is provided with a movable groove corresponding to the fixed rod.

[0009] Preferably, the inside of the outer shell body is provided with an adjusting groove corresponding to the return spring, and the width of the adjusting groove corresponds to the adjusting plate.

[0010] Preferably, the limiting plate comprises an X-shaped fixing plate, rubber pads are fixedly connected to two ends of the fixing plate, and a rotating ball is fixedly connected to one end of the rubber pad close to the fixing plate.

[0011] Preferably, the two ends of the fixing plate are fixedly connected with clamping grooves corresponding to the rotating ball.

[0012] The one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0013] The utility model discloses a fixed structure is arranged on the outer frame, realizes the stable positioning to the cold and hot impact test case. The fixed structure passes through connecting rod and connects gradually in proper order with the adjusting ball of a plurality of outer shell body on the outer frame to adapt the change of test case volume. When the test case carries out the experiment and happens thermal expansion, the limiting plate rotates under the action of the adjusting ball to adapt the deformation of test case body. Meanwhile, the reset spring carries out the corresponding adjustment according to the position change of the adjusting ball, and the dynamic stability and reusability of structure are ensured.

[0014] Other advantages, objects and features of the utility model will be set forth in the subsequent description, and to some extent, it will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the installation schematic drawing of the utility model kind of cold and hot impact test case test rack;

[0016] Figure 2 It is the fixed structure explosion disassembly drawing of the utility model kind of cold and hot impact test case test rack;

[0017] Figure 3 It is the fixed structure plan view of the utility model kind of cold and hot impact test case test rack;

[0018] Figure 4 It is the section view of the utility model kind of cold and hot impact test case test rack's outer shell body.

[0019] As shown in the figure:

[0020] 1, outer frame;

[0021] 11, outer shell body;12, reset spring;13, adjusting plate;14, locking ring;15, adjusting groove;

[0022] 2, fixed structure;

[0023] 21, adjusting ball; 22, connecting rod; 23, limiting plate; 24, fixed rod; 25, movable slot; 26, fixed plate; 27, rubber pad; 28, rotating ball; 29, clamping groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] It should be noted that the terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] As shown in Figure 1 and Figure 2 A test rack for a cold and hot impact test chamber, including an outer frame 1, a plurality of uniformly distributed fixed structures 2 are fixedly connected above the outer frame 1. The fixed structure 2 includes a plurality of adjusting balls 21, connecting rods 22 and limiting plates 23. The connecting rod 22 is connected with the outer frame 1 in correspondence, and the other end is connected with an outer shell body 11. The adjusting ball 21 is placed inside the outer shell body 11 and is fixedly connected with the limiting plate 23 through the fixed rod 24. A plurality of uniformly distributed return springs 12 are fixedly connected inside the outer shell body 11, and the adjusting plate 13 abutting the adjusting ball 21 is fixedly connected. The outer shell body 11 is provided with a locking ring 14 penetrating through itself, and the locking ring 14 is provided with a locking bolt. The side of the outer shell body 11 close to the fixed rod 24 is provided with a movable slot 25 corresponding to the fixed rod 24. The inside of the outer shell body 11 is provided with an adjusting slot 15 corresponding to the return spring 12, and the width of the adjusting slot 15 corresponds to the adjusting plate 13.

[0028] In this embodiment, the design of the test rack for the cold and hot shock test chamber takes into account the structural stability and adaptability of the test chamber under temperature changes. By providing a fixed structure 2 on the outer frame 1, stable support for the test chamber is achieved. The fixed structure 2 connects the outer shell 11 and the adjusting ball 21 to the outer frame 1 in sequence through the connecting rod 22, to adapt to the change in volume of the test chamber. When the test chamber undergoes thermal expansion during the experiment, the limiting plate 23 rotates under the drive of the adjusting ball 21, thereby adapting to the change in the chamber of the test chamber, while the return spring 12 adapts to the position change of the adjusting ball 21, ensuring the dynamic stability and reusability of the structure. The outer shell 11 is provided with a locking ring 14 on the outside and a locking bolt on the inside to enhance the stability of the fixed structure. The outer shell 11 is provided with a movable slot 25 on the side close to the fixed rod 24 to adapt to the position change of the fixed rod 24. The inner part of the outer shell 11 is provided with an adjusting groove 15, the width of which corresponds to the adjusting plate 13, further enhancing the cooperation precision between the adjusting plate 13 and the adjusting ball 21.

[0029] As shown in Figure 3 and Figure 4 , the limiting plate 23 includes an X-shaped fixed plate 26, the two ends of which are fixedly connected with rubber pads 27, and the end of the rubber pad 27 close to the fixed plate 26 is fixedly connected with a rotating ball 28. The two ends of the fixed plate 26 are fixedly connected with a clamping groove 29 corresponding to the rotating ball 28. This design enables the test rack to stably fix and adjust the test sample during the cold and hot shock test, ensuring the accuracy and reliability of the test.

[0030] In this embodiment, the X-shaped fixed plate 26 of the limiting plate 23 provides stability in multiple directions, while the use of rubber pads 27 enhances the protection of the test sample, avoiding direct metal contact that may occur during temperature shock, thereby reducing the risk of damage to the sample. The use of rotating ball 28 and clamping groove 29 allows the limiting plate 23 to be finely adjusted in multiple directions to adapt to test samples of different sizes and shapes. This fine adjustment capability, combined with the overall stability of the fixed structure 2, ensures the high performance of the test rack in cold and hot shock tests, whether in high or low temperature conditions, and ensures the precise positioning of the test sample. In addition, this design allows for quick replacement or adjustment of the test sample, improving the efficiency and flexibility of the test.

[0031] In use, first, the test frame is placed in a predetermined position of the cold and hot shock test box, ensuring that the outer frame 1 is stably supported on the base of the test box; then, the outer shell 11 is connected with the outer frame 1 and the adjusting ball 21 in turn through the connecting rod 22, and the fine adjustment is carried out according to the size and shape of the test sample by the cooperation of the adjusting ball 21 and the adjusting plate 13, until the test sample is stably fixed inside the outer shell 11; then, the limiting plate 23 is fixedly connected with the adjusting ball 21 through the fixing rod 24, the X-shaped fixing plate 26 and the rubber pad 27 on the limiting plate 23 are used to protect the test sample and avoid direct metal contact, and at the same time, the fine adjustment is carried out through the rotating ball 28 and the clamping groove 29, so as to ensure the accurate positioning of the test sample in the cold and hot shock process; during the test process, with the change of the temperature in the test box, the test box body may expand or shrink, at this time, the limiting plate 23 will be driven to rotate by the adjusting ball 21, and the reset spring 12 will also adapt to the position change of the adjusting ball 21, so as to maintain the dynamic stability of the structure; finally, the locking ring 14 and the locking bolt outside the outer shell 11, and the movable groove 25 close to the side of the fixing rod 24 are used to further adjust and lock the fixing structure 2, so as to ensure the stability of the test frame and the safety of the test sample under extreme temperature change. Through the series of steps, the device can provide stable, accurate and adjustable support in the cold and hot shock test, and ensure the accuracy and reliability of the test.

[0032] Although the utility model has disclosed as above with preferable embodiments, it is not used to limit the utility model, anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the utility model, therefore the protection scope of the utility model should be limited by the claims.

Claims

1. A test frame for a thermal shock test chamber, comprising an outer frame (1), characterized in that: The outer frame (1) is fixedly connected to a number of evenly distributed fixed structures (2), the fixed structures (2) including a number of adjusting balls (21), connecting rods (22), and limiting plates (23); The connecting rod (22) is connected to the outer frame (1) respectively. The other end of the connecting rod (22) is connected to the outer shell (11). The adjusting ball (21) is placed inside the outer shell (11). One side of the adjusting ball (21) is fixedly connected to the limiting plate (23) through the fixing rod (24). Inside the outer shell (11), there is an adjusting plate (13) that is tightly attached to the adjusting ball (21) and is fixedly connected to several distributed reset springs (12).

2. The test frame for a thermal shock test chamber according to claim 1, characterized in that: The outer shell (11) is provided with a locking ring (14) that passes through it, and a locking bolt is provided inside the locking ring (14). The outer shell (11) is provided with a movable groove (25) corresponding to the fixing rod (24) on the side near the fixing rod (24).

3. The test frame for a thermal shock test chamber according to claim 1, characterized in that: The outer casing (11) has an adjustment groove (15) inside that corresponds to the reset spring (12), and the width of the adjustment groove (15) corresponds to the adjustment plate (13).

4. The test frame for a thermal shock test chamber according to claim 1, characterized in that: The limiting plate (23) includes an X-shaped fixing plate (26), with rubber pads (27) fixedly connected to both ends of the fixing plate (26), and a rotating ball (28) connected to the inner fixing block of the rubber pad (27) near the fixing plate (26).

5. The test frame for a thermal shock test chamber according to claim 4, characterized in that: The two ends of the fixing plate (26) are fixedly connected with slots (29) corresponding to the rotating ball (28).

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