Detection tray based on rubber low-temperature brittleness test

Abstract

The utility model discloses a detection tray based on a rubber low-temperature brittleness test, and belongs to the technical field of rubber product detection. The detection device comprises a detection disc body, a butt joint valve block is embedded in the bottom of one end of the detection disc body, a limiting frame set is clamped on the inner wall of the top of the detection disc body, an adaptive clamping frame is arranged in the center of the interior of the limiting frame set, and a plurality of lifting mechanisms clamped with the top of the detection disc body are arranged below the adaptive clamping frame; according to the utility model, the adaptive clamping frame and the adaptive lifting mechanism are replaced according to the rubber product, and pneumatic adsorption is combined, so that the position deviation of the rubber product due to external interference during detection is avoided, and the stability and accuracy of detection are ensured; the detection disc body is provided with a cold air channel for rapid cooling, multi-point circular diffusion cooling is realized by means of structures such as ventilation clamping grooves, uneven local cooling and temperature difference are avoided, and the detection efficiency and precision are improved; the operation steps of the detection disc body entering the device are defined, the butt joint valve block is in butt joint with the cold air valve, it is ensured that a low-temperature cold area enters smoothly, and the detection process is standardized and optimized.

Description

Technical Field

[0001] This utility model relates to the field of rubber product testing technology, and in particular to a testing tray based on the low-temperature brittleness test of rubber. Background Technology

[0002] Rubber is a material widely used in many fields such as industry and daily life. Its performance directly affects the quality and service life of related products. Among the many performance indicators of rubber, low temperature brittleness is a key performance, which reflects the ability of rubber materials to resist cracking in low temperature environments. For rubber products used in cold regions, such as automobile tires, seals, and hoses, the quality of their low temperature brittleness performance is crucial.

[0003] Currently, there are several problems to be solved in the low-temperature brittleness test of rubber. Traditional testing methods lack efficient and stable means for sample placement and fixation, which may cause the sample to shift or shake in the low-temperature environment, affecting the accuracy of the test results. Moreover, the entire test operation is relatively cumbersome, especially when testing multiple samples, resulting in low testing efficiency and a large amount of manpower and time costs. In addition, the existing test equipment is difficult to meet the testing needs of rubber samples of different specifications and has poor versatility. Therefore, the existing cold water immersion test is replaced by low-temperature gas.

[0004] In light of the above, it should be noted that Chinese patent application number CN2023202981834 discloses a rubber low-temperature brittleness tester, which uses electric clamping and automatic lifting to perform unstable mobile testing in exposed cold water. This is prone to interference from multiple factors such as cold water pressure, contact temperature difference, and clamping and transfer stability, resulting in errors in the low-temperature brittleness test of rubber products.

[0005] To address the aforementioned technical deficiencies, a solution is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a testing tray based on the low-temperature brittleness test of rubber to solve the problems mentioned.

[0007] The purpose of this utility model can be achieved through the following technical solution: a test tray based on the low temperature brittleness test of rubber, including a test tray body, a docking valve block is embedded in the bottom of one end of the test tray body, a limit frame group is snapped on the inner wall of the top of the test tray body, an adapter card is provided in the center of the limit frame group, multiple sets of lifting mechanisms are provided below the adapter card and snapped with the top of the test tray body, and a ventilation slot is provided in the recess of the top surface of the test tray body to connect with the multiple sets of lifting mechanisms;

[0008] The lifting mechanism includes an air-dispersing cylinder body, a top cone is provided at the top of the air-dispersing cylinder body, a uniform support frame is snapped on the top cone, and a ventilation ring frame and a central cylinder column are provided at the bottom of the air-dispersing cylinder body, which are sleeved with the ventilation slot. The uniform support frame includes an extension air guide frame and a middle ring frame.

[0009] Preferably, the detection disc body has an outer groove recessed in the middle of one end, and the bottom of the detection disc body has symmetrically recessed limiting guide rails that are connected to the docking valve block. The top of the detection disc body has symmetrically arranged corner pads that are connected to the limiting frame assembly.

[0010] Preferably, the bottom of the limiting frame assembly is provided with a base frame for corner pads to engage, and the top of the base frame is provided with multiple sets of combined pad frames. The surface of the combined pad frames is provided with fasteners and slots for connecting with the adapter card frame. The top of the adapter card frame is provided with an upper pressure cover frame. The adapter card frame is not limited to the one shown in the attached drawing, and can be replaced according to the shape of the rubber product to be tested.

[0011] Preferably, the top cone has a central suction cup that is fitted onto the middle of the equalizing support frame, the outer peripheral wall of the diffuser cylinder has several micro-holes, the bottom of the diffuser cylinder has four symmetrically arranged locking feet, the central cylinder is located at the bottom center of the diffuser cylinder and communicates with the central suction cup, and the ventilation ring is fitted onto the outer periphery of the central cylinder and connected to the micro-holes and the equalizing support frame.

[0012] Preferably, the top of the extended air guide frame is recessed with a circular groove, and multiple sets of the extended air guide frames are arranged in a ring around the outer periphery of the middle ring frame. The inner wall of the bottom of the middle ring frame is recessed with an inner venting ring, and the outer wall of the middle ring frame is recessed with a gas dispersing groove connected to the inner venting ring. The gas dispersing groove and the extended air guide frame are arranged in a staggered manner.

[0013] The beneficial effects of this utility model are:

[0014] (1) This utility model is based on the replacement of the adapter card holder in advance according to the rubber product, so as to adapt the number and position of insertion and removal of the lifting mechanism on the test plate. Combined with the pneumatic adsorption and the adapter card holder, it can effectively avoid the positional displacement of the rubber product due to external interference during the test, and ensure the stability and accuracy of the test.

[0015] (2) This utility model achieves rapid cooling by setting up a cold air channel inside the detection plate to guide the circulation of low-temperature cold air; and by using structures such as ventilation slots and ventilation ring frames to achieve multi-point circular diffusion cooling of the environment around the lifting mechanism and the bottom area of ​​the rubber product, avoiding uneven cooling and temperature difference in local areas caused by the gradual cooling of the whole in traditional detection devices, thereby improving detection efficiency and accuracy.

[0016] (3) This utility model clarifies the operation process of the detection plate entering the low temperature brittleness detection device, including steps such as aligning the slide rail, adjusting the level, and pushing it in. At the same time, the docking valve block is connected to the cold air valve to ensure that the low temperature cold zone can smoothly enter the detection plate, making the whole detection process more standardized and efficient. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings;

[0018] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the detection disc structure of this utility model;

[0020] Figure 3 This is a bottom view of the detection disc of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the limiting frame assembly of this utility model;

[0022] Figure 5 This is a schematic diagram of the lifting mechanism of this utility model;

[0023] Figure 6 This is a structural schematic diagram of the lifting mechanism and the equal support frame of this utility model;

[0024] Figure 7 This is a schematic diagram of the lifting mechanism of this utility model.

[0025] Legend: 1. Detection disc; 101. Outer handle groove; 102. Corner pad; 103. Vent groove; 104. Limiting guide rail; 2. Connecting valve block; 3. Limiting frame assembly; 301. Upper pressure cover frame; 302. Combined pad frame; 304. Adaptor frame; 4. Lifting mechanism; 401. Air diffuser body; 402. Top cone; 403. Clamping foot; 404. Center suction cup; 405. Vent ring frame; 406. Center cylinder column; 5. Evenly supporting frame; 501. Extended air guide frame; 502. Inner vent ring; 503. Air diffuser groove; 504. Middle ring frame. Detailed Implementation

[0026] 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.

[0027] Example 1: Please refer to Figure 1 - Figure 7 As shown, this embodiment is a test tray based on the low-temperature brittleness test of rubber, including a test tray body 1. A docking valve block 2 is embedded in the bottom of one end of the test tray body 1. A limit frame group 3 is snapped onto the inner wall of the top of the test tray body 1. An adapter bracket 304 is set in the center of the limit frame group 3. Multiple sets of lifting mechanisms 4 are set below the adapter bracket 304 and snapped onto the top of the test tray body 1. A ventilation slot 103 connected to the multiple sets of lifting mechanisms 4 is recessed on the top surface of the test tray body 1. The adapter bracket 304 is replaced in advance according to the rubber product. According to the shape of the rubber product and the extrusion area of ​​the low-temperature brittleness test device, the number and position of the adapter lifting mechanisms 4 on the test tray body 1 are replaced. After the equipment is completed, the rubber product is placed in the test tray body 1 and snapped into the multiple sets of adapter brackets 304, waiting for the test tray body 1 to be sent into the low-temperature brittleness test device.

[0028] The lifting mechanism 4 includes an air diffuser body 401, a top cone 402 is provided on the top of the air diffuser body 401, a uniform support frame 5 is snapped on the top cone 402, and a ventilation ring frame 405 and a central cylinder column 406 are provided at the bottom of the air diffuser body 401, which are sleeved with the ventilation slot 103. The uniform support frame 5 includes an extension air guide frame 501 and a middle ring frame 504.

[0029] When the test disc 1 is brought close to the inlet area of ​​the low-temperature brittleness testing device, the end of the test disc 1 away from the outer handle groove 101 is aligned with the slide rail in the inlet area, and the test disc 1 and the slide rail are adjusted to maintain a horizontal state. The test disc 1 is pushed outward to cause the test disc 1 to carry the limited rubber product into the interior of the low-temperature brittleness testing device. When the test disc 1 is completely inserted into the interior of the low-temperature brittleness testing device, the docking valve block 2 slides with the test disc 1 and docks with the cold air valve at one end of the low-temperature brittleness testing device to guide the low-temperature cold zone into the test disc 1.

[0030] It should be noted that the detection disc 1 is equipped with several cold air channels to guide the low-temperature cold air to circulate within the detection disc 1, causing the detection disc 1 to cool down rapidly to the required detection temperature. At the same time, the cold air channels are equipped with branch pipes connected to the ventilation slot 103 to guide the low-temperature cold air into the lifting mechanism 4 and the interior. The ventilation slot 103 is equipped with separate pipes connected to the ventilation ring frame 405 and the central cylinder 406. The central cylinder 406 is separately connected to the docking valve block 2 and the external air supply equipment through the pipes, providing separate suction for the central disc area to pneumatically adsorb the rubber products that have just entered the low-temperature brittleness testing device. It works in conjunction with the adapter frame 304 to limit the rubber products inside the detection disc 1, thereby preventing the rubber products from shifting position during the low-temperature brittleness testing process or due to external interference. The low-temperature brittleness testing device is not limited to this and may be adjusted according to the actual product requirements.

[0031] The bottom of the limiting frame group 3 is provided with a base frame that is engaged with the corner pad 102. The top of the base frame is provided with multiple sets of combined pad frames 302. The surface of the combined pad frame 302 is provided with fasteners and slots that connect with the adapter card frame 304. The top of the adapter card frame 304 is provided with an upper pressure cover frame 301. The adapter card frame 304 is not limited to the one shown in the attached figure, and can be replaced according to the shape of the rubber product to be tested.

[0032] Example 2: The test tray based on the low-temperature brittleness test of rubber in this example includes an outer handle groove 101 recessed in the middle of one end of the test tray body 1, a limiting guide rail 104 symmetrically recessed on both sides of the bottom of the test tray body 1 to connect with the docking valve block 2, and corner pads 102 symmetrically arranged at the four corners of the top of the test tray body 1 to connect with the limiting frame group 3.

[0033] A central suction cup 404 is provided at the top center of the top cone 402 and is sleeved in the middle of the support frame 5. Several micro-holes are provided on the outer peripheral wall of the air diffuser 401. Low-temperature cold air is guided into the air diffuser 401 through the docking valve block 2, the ventilation slot 103 and the ventilation ring frame 405. When passing through the micro-hole area, some of the low-temperature cold air is guided into several micro-holes to achieve multi-point circular diffusion cooling of the environment around the support mechanism 4. This effectively avoids the uneven local cooling and temperature difference caused by the gradual cooling of the whole body in the traditional low-temperature brittleness detection device. Another part of the low-temperature cold air is continuously pumped into the ventilation ring frame 405.

[0034] The bottom of the gas diffuser body 401 is symmetrically provided with four corner clamps 403. The central cylinder 406 is located at the bottom center of the gas diffuser body 401 and is connected to the central suction cup 404. The ventilation ring frame 405 is sleeved on the outer periphery of the central cylinder 406 and is connected to the micro-hole and 5.

[0035] The top of the extended air guide frame 501 is recessed with a circular groove. Multiple sets of extended air guide frames 501 are arranged in a ring around the outer periphery of the middle ring frame 504. The inner wall of the bottom of the middle ring frame 504 is recessed with an inner vent ring 502. The outer wall of the middle ring frame 504 is recessed with a diffuser groove 503 connected to the inner vent ring 502. The diffuser groove 503 is staggered with the extended air guide frame 501.

[0036] The inner ring frame 504 is equipped with an inner pipe connected to the inner vent ring 502 and the circular groove. The inner pipe guides the low-temperature cold air to flow outward. Part of the cold air leaks outward along the inner vent ring 502 into the air dispersing groove 503, filling the area around the inner ring frame 504 with low-temperature cold air. The other part of the cold air enters the circular groove and is sprayed along the groove, guiding the cold air that is trapped in the air dispersing groove 503 to diffuse outward. At the same time, the cold air flows synchronously through multiple points, continuously cooling the surfaces of the extended air guide frame 501 on the top cone 402, the inner ring frame 504, and the central suction cup 404. This results in multi-point circular diffusion cooling of the rubber product area above the top cone 402. Combined with the coordinated operation of multiple sets of lifting mechanisms 4 and the mutual guidance of the flow of cold air by the micropores and the circular groove, the bottom area of ​​the rubber product cools down rapidly. The top of the rubber product is cooled by the built-in components of the low-temperature brittleness detection device, which facilitates the rapid cooling detection of the rubber product by the low-temperature brittleness detection device.

[0037] Combining Embodiment 1 and Embodiment 2, the system is upgraded to be more stable: the adapter holder 304 is replaced with the adapter lifting mechanism 4 based on the rubber product, and combined with pneumatic adsorption, the position of the rubber product is avoided due to external interference during the test, so as to ensure stable and accurate testing.

[0038] Efficient and uniform cooling: The detection plate 1 is equipped with a cold air channel for rapid cooling. The structure of the ventilation slot 103 and other structures realizes multi-point circular diffusion cooling, avoiding uneven local cooling and temperature difference, and improving detection efficiency and accuracy.

[0039] Standardized and efficient process: Clearly define the operation steps for the detection disc 1 to enter the device, connect the valve block 2 to the cold air valve to ensure smooth entry into the low temperature cold zone, and standardize and optimize the detection process.

[0040] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," 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 the invention. In this specification, 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.

[0042] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A test tray based on a low-temperature brittleness test of rubber, comprising a test tray body (1), characterized in that, The bottom of one end of the detection disc (1) is fitted with a docking valve block (2). A limit frame assembly (3) is snapped onto the inner wall of the top of the detection disc (1). An adapter bracket (304) is provided in the center of the limit frame assembly (3). Multiple sets of lifting mechanisms (4) are provided below the adapter bracket (304) and snapped onto the top of the detection disc (1). A ventilation slot (103) is recessed on the top surface of the detection disc (1) and connected to the multiple sets of lifting mechanisms (4). The lifting mechanism (4) includes an air-dispersing cylinder (401), a top cone (402) is provided on the top of the air-dispersing cylinder (401), a uniform support frame (5) is snapped on the top cone (402), and a ventilation ring frame (405) and a central cylinder column (406) are provided at the bottom of the air-dispersing cylinder (401) and are connected to the ventilation slot (103). The uniform support frame (5) includes an extension air guide frame (501) and a middle ring frame (504).

2. The testing tray based on the low-temperature brittleness test of rubber according to claim 1, characterized in that, The detection disc (1) has an outer handle groove (101) recessed in the middle of one end. The bottom of the detection disc (1) has symmetrical recessed limit guide rails (104) connected to the docking valve block (2). The top of the detection disc (1) has symmetrical corner pads (102) connected to the limit frame group (3).

3. The testing tray based on the low-temperature brittleness test of rubber according to claim 2, characterized in that, The bottom of the limiting frame assembly (3) is provided with a base frame that is engaged by corner pads (102). The top of the base frame is provided with multiple sets of combined pad frames (302). The surface of the combined pad frame (302) is provided with fasteners and slots that connect with the adapter card frame (304). The top of the adapter card frame (304) is provided with an upper pressure cover frame (301).

4. The testing tray based on the low-temperature brittleness test of rubber according to claim 1, characterized in that, The top cone (402) has a central suction cup (404) that is sleeved in the middle of the equalizing support frame (5). The outer peripheral wall of the air diffuser (401) has several micro holes. The bottom corners of the air diffuser (401) are symmetrically provided with locking feet (403). The central cylinder (406) is located at the bottom center of the air diffuser (401) and is connected to the central suction cup (404). The ventilation ring frame (405) is sleeved on the outer periphery of the central cylinder (406) and is connected to the micro holes and the equalizing support frame (5).

5. A testing tray based on a low-temperature brittleness test of rubber according to claim 1, characterized in that, The top of the extended air guide frame (501) is recessed with a circular groove. The extended air guide frame (501) is provided with multiple sets arranged in a ring around the outer periphery of the middle ring frame (504). The inner wall of the bottom of the middle ring frame (504) is recessed with an inner venting ring (502). The outer wall of the middle ring frame (504) is recessed with a gas dispersing groove (503) connected to the inner venting ring (502), and the gas dispersing groove (503) is staggered from the extended air guide frame (501).

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