A hot extension test device

Abstract

The utility model discloses a kind of hot extension test devices, belong to hot extension test field, comprising: box assembly;With the detachable connection of box assembly clamping frame;Multiple test components, test component includes hook, ruler, nut and weight clamp, one end of hook and clamping frame are connected, the other end of hook and weight clamp are connected, ruler is sleeved in hook outside, nut is threadedly connected in hook outside, nut and the side of ruler abut, the other side of ruler and hook abut.Hook includes: threaded portion, ruler is sleeved in threaded portion outside, nut is threadedly connected in threaded portion outside;With the connection of one end of threaded portion, connection and clamping frame are connected, the other side of ruler and connection abut;With the connection of the other end of threaded portion, suspension part, suspension part and weight clamp are connected.The technical effect of the utility model is that its opening time is shorter.

Description

Technical Field

[0001] This utility model relates to thermal stretching testing, and more particularly to a thermal stretching testing device. Background Technology

[0002] The thermal stretch test is a standardized test method used to evaluate the resistance to deformation of polymer materials such as wires and cables, thermoplastic elastomers, and vulcanized rubber under specific high temperature and constant load conditions.

[0003] However, when using the relevant thermal stretching test device to test multiple samples simultaneously, the time required to hang multiple samples on the clamps can easily cause the relevant thermal stretching test device to remain open for an extended period, resulting in a significant temperature drop. This leads to a prolonged heating time for the relevant thermal stretching test device after the test begins, which not only causes inaccurate test timing but may also cause the temperature to rise beyond the set test temperature, ultimately affecting the accuracy of the test. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to provide a heat stretching test device with a short opening time.

[0005] Technical solution: A thermal stretching test apparatus, comprising: Box assembly; A clamping frame detachably connected to the box assembly; Multiple test components, the test components including a hook, a ruler, a nut and a load-bearing clamp, one end of the hook is connected to the clamping frame, the other end of the hook is connected to the load-bearing clamp, the ruler is sleeved on the outside of the hook, the nut is threaded on the outside of the hook, the nut and one side of the ruler abut against each other, and the other side of the ruler abuts against the hook.

[0006] Optionally, the hook includes: The ruler is fitted onto the outside of the threaded portion, and the nut is threaded onto the outside of the threaded portion. A connecting part is connected to one end of the threaded portion, the connecting part is connected to the clamping frame, and the other side of the ruler abuts against the connecting part; A suspension part is connected to the other end of the threaded portion, and the suspension part is connected to the load-bearing clamp.

[0007] Optionally, the threaded portion, connecting portion, and suspension portion are integrally formed and connected.

[0008] Optionally, the connection between the connecting part and the clamping frame is a detachable connection.

[0009] Optionally, the box assembly includes: The housing and the clamping frame are detachably connected; The door is movably and lockingly connected to the housing; A heater connected to the housing.

[0010] Optionally, the box assembly further includes two support plates respectively connected to both sides of the box body, and the clamping frame and the support plates are slidably connected.

[0011] Optionally, the support plate is provided with a groove, and the clamping frame is located in the groove.

[0012] Optionally, the load-bearing clamp includes: A first clamp, one end of which is used to hold one end of the sample; The second clamp has one end for clamping the other end of the sample; A hook connected to the other end of the first clamp, wherein the other end of the hook and the latch are connected; A load-bearing block connected to the other end of the second clamp.

[0013] Beneficial effects: (1) Open the box assembly, put the clamping frame, multiple test components and multiple samples into the box assembly, and then close the box assembly. This makes it easier to open the box assembly in a shorter time, prevent the temperature drop from being too severe, and thus prevent the thermal extension test device of this scheme from having a long heating time after the test starts. This not only ensures the accuracy of the test time, but also prevents the temperature rise from exceeding the set test temperature and ultimately affecting the accuracy of the test. (2) The ruler is used to measure the thermal elongation of the sample, and the nut is used to lock the ruler and the hook to prevent the ruler from shaking and to increase the measurement accuracy. Attached Figure Description

[0014] Figure 1 This is one of the structural diagrams of a heat stretching test device according to Embodiment 1 of this utility model; Figure 2 This is a second structural diagram of a heat stretching test device according to Embodiment 1 of this utility model; Figure 3 This is a partial view of the test components of Embodiment 1 of this utility model; Figure 4 This is a structural diagram of the load-bearing clamp of Embodiment 1 of this utility model; Figure 5 This is a structural diagram of the support plate of Embodiment 1 of this utility model; In the diagram: 1. Box assembly; 11. Box body; 12. Door; 13. Heater; 14. Bearing plate; 141. Groove; 2. Clamping frame; 3. Test assembly; 31. Hook; 311. Connecting part; 312. Threaded part; 313. Suspension part; 32. Ruler; 33. Nut; 34. Load-bearing clamp; 341. First clamp; 342. Second clamp; 343. Hook; 344. Load-bearing block; 4. Sample. Detailed Implementation

[0015] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the utility model. Furthermore, it should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. The terms "first," "second," etc., used in this utility model are provided for the convenience of describing the technical solution of this utility model and have no specific limiting effect; they are all general terms and do not constitute a limitation on the technical solution of this utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the 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 on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of 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. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict, all of which are within the scope of protection claimed by this utility model.

[0017] Example 1 like Figures 1-3This embodiment provides a heat extension test device, including: a box assembly 1; a clamping frame 2 detachably connected to the box assembly 1; and multiple test components 3. Each test component 3 includes a hook 31, a ruler 32, a nut 33, and a load-bearing clamp 34. One end of the hook 31 is connected to the clamping frame 2, and the other end of the hook 31 is connected to the load-bearing clamp 34. The ruler 32 is sleeved on the outside of the hook 31, and the nut 33 is threaded on the outside of the hook 31. The nut 33 and one side of the ruler 32 abut against each other, and the other side of the ruler 32 abuts against the hook 31.

[0018] Specifically, during the test, firstly, the chamber assembly 1 is preheated to the set test temperature; then, the sample 4 is clamped on the load-bearing fixture 34, and the other end of the load-bearing fixture 34 is connected to the hook 31; then, the chamber assembly 1 is opened, and the clamping frame 2, multiple test components 3, and multiple samples 4 are placed inside the chamber assembly 1, and then the chamber assembly 1 is closed. This ensures that the opening time of the chamber assembly 1 is short, preventing a significant temperature drop, thereby preventing a long heating time in the thermal extension test device after the start of the test. This not only ensures the accuracy of the test time but also prevents the temperature rise from exceeding the set test temperature, which would ultimately affect the accuracy of the test; finally, the thermal extension test is conducted.

[0019] The box assembly 1 is used to accommodate the clamping frame 2, multiple test components 3, and multiple samples 4, which facilitates the provision of a set test temperature for multiple samples 4; the clamping frame 2 is used to support multiple test components 3 and multiple samples 4. Due to its detachable connection, it is easy to put the clamping frame 2, multiple test components 3, and multiple samples 4 into or out of the box assembly 1 simultaneously; the hook 31 is used to indirectly connect the load-bearing clamp 34 and the clamping frame 2; the ruler 32 is used to measure the thermal elongation length of the sample 4, and the nut 33 is used to lock the ruler 32 and the hook 31 to prevent the ruler 32 from shaking and to increase the measurement accuracy.

[0020] Furthermore, such as Figure 3 The hook 31 includes: a threaded portion 312, a ruler 32 sleeved on the outside of the threaded portion 312, and a nut 33 threadedly connected to the outside of the threaded portion 312; a connecting portion 311 connected to one end of the threaded portion 312, the connecting portion 311 being connected to the clamping frame 2, and the other side of the ruler 32 abutting against the connecting portion 311; and a suspension portion 313 connected to the other end of the threaded portion 312, the suspension portion 313 being connected to the load-bearing clamp 34.

[0021] Specifically, the threaded part 312 is used to connect the connecting part 311 and the suspension part 313, and the threaded part 312, together with the nut 33 and the connecting part 311, is used to lock the ruler 32; the connecting part 311 is used to connect the clamping frame 2; the suspension part 313 is used to suspend the load-bearing clamp 34.

[0022] Furthermore, such as Figure 3The threaded part 312, the connecting part 311, and the suspension part 313 are integrally formed and connected.

[0023] Specifically, the one-piece molding connection facilitates the good integrity of the threaded part 312, the connecting part 311, and the suspension part 313. During processing, the thread is first machined on the outside of the blank rod to form the threaded part 312, and then the blank rod is bent to form the connecting part 311 and the suspension part 313.

[0024] Furthermore, such as Figure 3 The connection between the connecting part 311 and the clamping frame 2 is a detachable connection.

[0025] Specifically, the detachable connection facilitates good detachability between the connecting part 311 and the clamping frame 2, which makes it easy to replace the hook 31 or the clamping frame 2 in a timely manner, and also makes it easy for the ruler 32 to be sleeved on the threaded part 312 through the connecting part 311.

[0026] Furthermore, such as Figures 1-2 The box assembly 1 includes: a box body 11, which is detachably connected to the clamping frame 2; a door 12 that is movably locked to the box body 11; and a heater 13 connected inside the box body 11.

[0027] Specifically, the housing 11 is used to support the clamping frame 2, the door 12, and the heater 13, etc.; the door 12 facilitates the opening and closing of the housing 11, thereby facilitating the simultaneous placement or removal of the clamping frame 2, multiple test components 3, and multiple samples 4 into or out of the housing 11; the heater 13 is used to heat the temperature inside the housing 11 to the set test temperature, and the heater 13 can be of the form of resistance type, electromagnetic induction type, etc.

[0028] Furthermore, such as Figure 1 and Figure 5 The box assembly 1 also includes two support plates 14 connected to the two sides of the box body 11 respectively, and the clamping frame 2 and the support plates 14 are slidably connected.

[0029] Specifically, the support plate 14 is used to support the clamping frame 2. Two support plates 14 are used to increase the placement stability of the clamping frame 2.

[0030] Furthermore, such as Figure 1 and Figure 5 The bearing plate 14 is provided with a groove 141, and the clamping frame 2 is located in the groove 141.

[0031] Specifically, the groove 141 is used to accommodate the clamp 2 and prevent the clamp 2, multiple test components 3 and multiple samples 4 from moving back and forth during the test. After the test is completed, the clamp 2 is lifted upwards and then slid backwards along the support plate 14 to complete the separation of the clamp 2 and the support plate 14.

[0032] Furthermore, such as Figure 4 The load-bearing clamp 34 includes: a first clamp 341, one end of which is used to clamp one end of the sample 4; a second clamp 342, one end of which is used to clamp the other end of the sample 4; a hook 343 connected to the other end of the first clamp 341, the other end of which is connected to the hook 31; and a load-bearing block 344 connected to the other end of the second clamp 342.

[0033] Specifically, the first clamp 341 and the second clamp 342 are used to hold the sample 4 together, and together with the hook 343 and the weight block 344, they facilitate the thermal stretching test of the sample 4 inside the box assembly 1.

[0034] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A thermal stretching test apparatus, characterized in that, include: Box assembly (1); A clamping frame (2) detachably connected to the box assembly (1); Multiple test components (3) are provided, including a hook (31), a ruler (32), a nut (33), and a load clamp (34). One end of the hook (31) is connected to the clamp (2), and the other end of the hook (31) is connected to the load clamp (34). The ruler (32) is sleeved on the hook (31), and the nut (33) is threaded on the hook (31). The nut (33) and one side of the ruler (32) abut against each other, and the other side of the ruler (32) abuts against the hook (31).

2. The thermal stretching test apparatus according to claim 1, characterized in that, The hook (31) includes: The ruler (32) is fitted onto the threaded part (312), and the nut (33) is threaded onto the outside of the threaded part (312). A connecting part (311) is connected to one end of the threaded part (312), the connecting part (311) is connected to the clamp (2), and the other side of the ruler (32) abuts against the connecting part (311); A suspension part (313) is connected to the other end of the threaded part (312), and the suspension part (313) is connected to the load clamp (34).

3. The thermal stretching test apparatus according to claim 2, characterized in that, The threaded portion (312), the connecting portion (311), and the suspension portion (313) are integrally formed and connected.

4. The thermal stretching test apparatus according to claim 2, characterized in that, The connection between the connecting part (311) and the clamping frame (2) is a detachable connection.

5. A thermal stretching test apparatus according to any one of claims 1-4, characterized in that, The box assembly (1) includes: The housing (11) and the clamping frame (2) are detachably connected; The door (12) is movably and lockingly connected to the housing (11); A heater (13) is connected inside the housing (11).

6. The thermal stretching test apparatus according to claim 5, characterized in that, The box assembly (1) also includes two support plates (14) respectively connected to both sides inside the box body (11), and the clamping frame (2) and the support plates (14) are slidably connected.

7. The thermal stretching test apparatus according to claim 6, characterized in that, The bearing plate (14) is provided with a groove (141), and the clamping frame (2) is located in the groove (141).

8. A thermal stretching test apparatus according to any one of claims 1-4, characterized in that, The load-bearing clamp (34) includes: The first clamp (341) has one end for clamping one end of the sample (4); The second clamp (342) has one end for clamping the other end of the sample (4); A hook (343) is connected to the other end of the first clamp (341), and the other end of the hook (343) is connected to the hook (31); A weight block (344) is connected to the other end of the second clamp (342).

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