Safety device of steel bar relaxation testing machine

Abstract

The utility model belongs to the field of testing machines, and particularly relates to a safety device of a steel bar relaxation testing machine, which is used for being installed on a testing machine clamp and comprises an installation part, a connection part and a protection part, the inner wall of the installation part is matched with the outer wall of the upper portion of the testing machine clamp, and the protection part is of a plate-shaped structure. The mounting part is sleeved at the upper part of the testing machine clamp, the connecting part is mounted at the lower part of the mounting part, and the protection part is connected to the connecting part and is positioned on the side surface of the testing machine clamp. The device can be used for protecting the side surface of a testing machine which is used for carrying out a tensile test on the looseness of a steel bar, and preventing a plurality of sections of steel plates from breaking and flying out to damage nearby workers or facilities during the tensile test.

Description

Technical Field

[0001] This utility model relates to the field of testing machines, specifically to a safety device for a steel bar relaxation testing machine. Background Technology

[0002] In the performance testing of metallic materials, the steel bar relaxation test is an important experiment for evaluating the deformation and strength retention ability of steel bars under long-term stress. This type of test is usually performed on a dedicated steel bar relaxation testing machine, which is equipped with clamps to hold the steel bar sample and apply the required tensile or compressive force.

[0003] However, during testing, the steel bar may unexpectedly break or fly out due to factors such as material properties, testing conditions, or improper operation, posing a potential safety risk to operators. Existing testing machine fixture designs often only focus on the stability of clamping the steel bar and the accuracy of test data, with insufficient consideration for operator safety.

[0004] Therefore, in order to solve the above-mentioned problems, a safety device for a steel bar relaxation testing machine was designed. Utility Model Content

[0005] This utility model addresses the problems mentioned above by designing a safety device for a steel bar relaxation testing machine. This device can protect the side of the testing machine when it is conducting a tensile test on the relaxation of a steel bar, preventing multiple sections of the steel plate from breaking off and flying out during the tensile test, thus preventing damage to nearby workers or facilities.

[0006] To achieve the above objectives, this utility model provides a safety device for a steel bar relaxation testing machine, which is installed on the testing machine fixture. The device includes a mounting part, a connecting part, and a protective part. The inner wall of the mounting part fits into the outer wall of the upper part of the testing machine fixture. The protective part has a plate-shaped structure. The mounting part is sleeved on the upper part of the testing machine fixture. The connecting part is installed on the lower part of the mounting part. The protective part is connected to the connecting part and located on the side of the testing machine fixture.

[0007] In this way, the mounting part fits onto the clamp by fitting with the outer surface of the clamp, and the protective part is connected to the lower part of the mounting part to play a protective role.

[0008] Furthermore, the mounting part includes: a socket cover, a fixing block, and a mating plate. There are two socket covers with a U-shaped structure. The inner wall of the socket cover fits into the outer wall of the upper part of the testing machine fixture. The mating plate has a sickle-shaped structure and is fixedly connected to two adjacent sides of the lower part of the socket cover. A sliding groove is provided on the other side of the bottom of the socket cover. One socket cover is slidably connected to the other socket cover by inserting the mating plate into the sliding groove. The fixing block is provided on the socket cover, and adjacent fixing blocks on the two socket covers are detachably connected.

[0009] In the above manner, the sleeve cover slides and engages with the mating plate through the bottom groove, and is then tightened by installing bolts on the fixing block.

[0010] Furthermore, the connecting part includes a connecting plate and a flexible connector. The connecting plate is fixedly connected to the bottom of the mounting part, and one end of the flexible connector is connected to the connecting plate and the other end is connected to the protective part.

[0011] Furthermore, the protective part includes a first baffle and a second baffle, the top of the first baffle is connected to the connecting part, and the second baffle is slidably connected to the inner side of the first baffle.

[0012] Furthermore, the protective part also includes a limiting plate and a fastening bolt. The limiting plate is a right-angled plate structure and is fixedly connected to the side of the first baffle. The second baffle is slidably connected between the limiting plate and the first baffle. The fastening bolt passes through the limiting plate and abuts against the second baffle.

[0013] In this way, the flexible connector can reduce some of the impact force when the steel bar hits the baffle in the event of an accident. The second baffle can be slidably connected to the inside of the first baffle. Depending on the specific test conditions, the protection range can be expanded by lowering the second baffle.

[0014] Furthermore, it also includes a stabilizing device, which is fixedly connected to the side of the protective part.

[0015] Furthermore, the stabilizing device includes: a fixing buckle, a right-angle plate, and a limiting protrusion. The fixing buckle is fixedly connected to the side of the protective part, the right-angle plate overlaps the fixing buckle, and the limiting protrusion is disposed at the end of the right-angle plate and is in contact with the side of the fixing buckle.

[0016] In this way, the stabilizing device can hold the baffles on different sides, making the whole device more stable and preventing the baffles from being knocked away after the steel rod impacts them.

[0017] In summary, this utility model has the following advantages and beneficial technical effects:

[0018] 1. The present invention provides a safety device for a steel bar relaxation testing machine that can protect the side of the testing machine when it is conducting a tensile test on the relaxation of a steel bar, preventing multiple sections of the steel plate from breaking off and flying out during the tensile test, which could damage nearby workers or facilities.

[0019] 2. The safety device of the steel bar relaxation test machine of this utility model has two baffles that can be extended and retracted, and can protect a larger area according to the test scenario;

[0020] 3. The stabilizing device of the safety device of the steel bar relaxation test machine of this utility model can fix the protective device and prevent the protective plate from flying off when it is impacted. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a structural schematic diagram of a safety device for a steel bar relaxation testing machine according to this utility model;

[0023] Figure 2 This is a front view of a safety device for a steel bar relaxation testing machine according to this utility model;

[0024] Figure 3 This is a bottom view of a safety device for a steel bar relaxation testing machine according to this utility model;

[0025] Figure 4 This is a utility model Figure 1 Enlarged view of A in the middle;

[0026] Figure 5 This is a utility model Figure 3 Enlarged view of B in the middle;

[0027] Figure 6 This is a schematic diagram of the bottom structure of the installation part of the safety device for a steel bar relaxation test machine according to this utility model.

[0028] The reference numerals in the attached figures are:

[0029] 1-Testing machine fixture; 2-Mounting part; 21-Socket cover; 22-Fixing block; 23-Matching plate;

[0030] 3-Connecting part; 31-Connecting plate; 32-Flexible connector;

[0031] 4-Protective part; 41-First baffle; 42-Second baffle; 43-Limiting plate; 44-Fastening bolt;

[0032] 5-Stabilizing device; 51-Fixing buckle; 52-Right angle plate; 53-Limiting protrusion. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-6 The present invention will be further described in detail below. Examples of embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are merely used for descriptive distinction and have no special meaning. All parts and equipment use conventional models found in the prior art, and the circuit connections employ conventional connection methods found in the prior art, which will not be detailed here. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, it includes: mounting part 2, connecting part 3 and protective part 4. The inner wall of mounting part 2 fits the outer wall of the upper part of the testing machine fixture 1. The protective part 4 is a plate-shaped structure. Mounting part 2 is sleeved on the upper part of testing machine fixture 1. Connecting part 3 is installed on the lower part of mounting part 2 and is integrally formed with mounting part 2. Protective part 4 is connected to connecting part 3 and located on the side of testing machine fixture 1.

[0037] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, the mounting part 2 includes: a socket cover 21, a fixing block 22, and a mating plate 23. There are two socket covers 21, which are U-shaped. The inner wall of the socket cover 21 fits with the outer wall of the upper part of the testing machine fixture 1. The mating plate 23 is sickle-shaped and is fixedly connected to two adjacent sides of the lower part of the socket cover 21. A sliding groove is provided on the other side of the bottom of the socket cover 21. One socket cover 21 is slidably connected to the other socket cover 21 by inserting the mating plate 23 into the sliding groove. A fixing block 22 is provided on the socket cover 21. The adjacent fixing blocks 22 on the two socket covers 21 are detachably connected by bolts. The mating plate 23 has two sides. One side is fixedly connected to the middle side of the lower part of the socket cover 21, and the other side is connected to the adjacent side, with the end extending out of the secondary side. The mating plates 23 on the two socket covers 21 are centrally symmetrically arranged, so that the side of the socket cover 21 without the mating plate 23 can be inserted into the mating plate 23 on the other socket cover 21 through the slot, which plays a guiding role in installing the socket cover 21 onto the fixture.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, the connecting part 3 includes a connecting plate 31 and a flexible connector 32. The connecting plate 31 is fixedly connected to the bottom of the mounting part 2 by bolts or welding. One end of the flexible connector 32 is connected to the connecting plate 31 by a pin, and the other end is connected to the protective part 4 by a pin. The flexible connector 32 has a steel chain structure.

[0039] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the protective part 4 includes a first baffle 41 and a second baffle 42. The top of the first baffle 41 is connected to the flexible connector 32 of the connecting part 3 by a pin. The second baffle 42 is slidably connected to the inner side of the first baffle 41. The protective part 4 also includes a limiting plate 43 and a fastening bolt 44. The limiting plate 43 is a right-angled plate structure fixedly connected to the side of the first baffle 41. The limiting plate 43 and the first baffle 41 are integrally formed. The second baffle 42 is slidably connected between the limiting plate 43 and the first baffle 41. The fastening bolt 44 passes through the limiting plate 43 and abuts against the second baffle 42. The fastening bolt 44 is threadedly connected to the limiting plate 43. After tightening, the end of the fastening bolt 44 abuts against the surface of the second baffle 42, pressing the second baffle 42 against the first baffle 41.

[0040] like Figure 1 and Figure 4 As shown, it also includes a stabilizing device 5, which is fixedly connected to the side of the protective part 4.

[0041] The stabilizing device 5 includes: a fixing buckle 51, a right angle plate 52, and a limiting protrusion 53. The fixing buckle 51 is fixedly connected to the side of the protective part 4 by bolts or welding. The right angle plate 52 overlaps the fixing buckle 51. The limiting protrusion 53 is a one-piece structure located at the end of the right angle plate 52 and is connected to the side of the fixing buckle 51.

[0042] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A safety device for a steel bar relaxation testing machine, for installation on the machine fixture (1), characterized in that, include: The machine comprises a mounting part (2), a connecting part (3), and a protective part (4). The inner wall of the mounting part (2) fits the outer wall of the upper part of the testing machine fixture (1). The protective part (4) is a plate-shaped structure. The mounting part (2) is sleeved on the upper part of the testing machine fixture (1). The connecting part (3) is installed on the lower part of the mounting part (2). The protective part (4) is connected to the connecting part (3) and located on the side of the testing machine fixture (1).

2. The safety device for a steel bar relaxation testing machine according to claim 1, characterized in that, The mounting part (2) includes: a socket cover (21), a fixing block (22) and a mating plate (23). There are two socket covers (21) and they are U-shaped. The inner wall of the socket cover (21) fits with the outer wall of the upper part of the testing machine fixture (1). The mating plate (23) is sickle-shaped. The mating plate (23) is fixedly connected to two adjacent sides of the lower part of the socket cover (21). A sliding groove is provided on the other side of the bottom of the socket cover (21). One socket cover (21) is slidably connected to the other socket cover (21) by inserting the mating plate (23) into the sliding groove. The fixing block (22) is provided on the socket cover (21). The adjacent fixing blocks (22) on the two socket covers (21) are detachably connected.

3. The safety device for a steel bar relaxation testing machine according to claim 1, characterized in that, The connecting part (3) includes a connecting plate (31) and a flexible connector (32). The connecting plate (31) is fixedly connected to the bottom of the mounting part (2). One end of the flexible connector (32) is connected to the connecting plate (31), and the other end is connected to the protective part (4).

4. The safety device for a steel bar relaxation testing machine according to claim 1, characterized in that, The protective part (4) includes a first baffle (41) and a second baffle (42). The top of the first baffle (41) is connected to the connecting part (3), and the second baffle (42) is slidably connected to the inner side of the first baffle (41).

5. The safety device for a steel bar relaxation testing machine according to claim 4, characterized in that, The protective part (4) also includes a limiting plate (43) and a fastening bolt (44). The limiting plate (43) is a right-angled plate structure and is fixedly connected to the side of the first baffle (41). The second baffle (42) is slidably connected between the limiting plate (43) and the first baffle (41). The fastening bolt (44) passes through the limiting plate (43) and abuts against the second baffle (42).

6. The safety device for a steel bar relaxation testing machine according to claim 1, characterized in that, It also includes a stabilizing device (5), which is fixedly connected to the side of the protective part (4).

7. The safety device for a steel bar relaxation testing machine according to claim 6, characterized in that, The stabilizing device (5) includes: a fixing buckle (51), a right angle plate (52) and a limiting protrusion (53). The fixing buckle (51) is fixedly connected to the side of the protective part (4). The right angle plate (52) overlaps the fixing buckle (51). The limiting protrusion (53) is disposed at the end of the right angle plate (52) and is in contact with the side of the fixing buckle (51).

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