Tension detection device for mechanical measurement

Abstract

The utility model provides a tension detection device for mechanical measurement, and belongs to the technical field of tension detection. Comprising a base, symmetrically-distributed supporting frames are fixedly connected to the top of the base, the supporting frames are sleeved with a protection mechanism, the protection mechanism comprises protection plates arranged on the front sides and the rear sides of the supporting frames correspondingly, closed cavities are formed between the protection plates and the supporting frames, and the two protection plates are fixedly connected through a fixing frame; and a starting button is mounted on the base. By arranging the protection mechanism, the protection mechanism composed of the protection plate and the fixing frame can be matched with the supporting frame to form the closed cavity, a sample is located in the cavity to be detected, chippings generated after the sample is broken can be prevented from splashing, the chippings can be conveniently cleaned in the later period, meanwhile, the chippings can be prevented from splashing to hurt operators, and the detection efficiency is improved. And the equipment safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of tensile testing technology, and in particular to a tensile testing device for mechanical measurement. Background Technology

[0002] Mechanical metrology is an important branch of metrology, playing a vital role in fields such as industrial manufacturing, construction and infrastructure, scientific research, and environmental monitoring. In the industrial manufacturing sector, mechanical metrology technical standard devices are used to ensure product quality, monitor manufacturing processes, and evaluate material properties. Among these, tensile testing machines are commonly used to test tensile performance.

[0003] The existing electronic tensile testing machines have exposed clamps, which pose a safety risk when testing hard materials such as plastics. If the sample breaks, the flying debris can easily injure the testing personnel, resulting in low safety.

[0004] For example, Chinese Patent No. CN 118603719 A discloses an electronic tensile testing machine. This technical solution reduces the amount of material flying out of the machine by setting a protective door, which facilitates material recovery and protects the safety of the operator. However, in actual operation, if the operator forgets or operates improperly, the tensile test can still be performed without closing the protective door, so the protective effect of the protective door needs to be further improved. Therefore, this application provides a tensile testing device for mechanical measurement to meet the needs. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a tensile testing device for mechanical measurement to address the issue that the safety of existing tensile testing machines needs to be improved.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A tensile testing device for mechanical measurement includes a base, a symmetrically distributed support frame fixedly connected to the top of the base, a protective mechanism sleeved on the outside of the support frame, the protective mechanism including protective plates respectively disposed on the front and rear sides of the support frame, the protective plates forming a closed cavity with the support frame, the two sets of protective plates being fixedly connected by a fixing frame, a start button installed on the base, a pressure switch embedded in the top of the base, the pressure switch being connected in series with the start button, and one set of protective plates being located above the pressure switch.

[0008] Optionally, the support frame has an overall U-shaped structure, and limiting grooves are respectively provided on the opposite end faces of the outer side wall of the support frame. The fixing frame is slidably connected to the support frame through the limiting grooves.

[0009] Optionally, the base has a positioning groove on its top, and the pressure switch is fixedly connected inside the positioning groove, which is adapted to the protective plate.

[0010] Optionally, the protective panel is preferably made of tempered glass.

[0011] Optionally, the fixing frame includes two pairs of limiting fixing plates that are respectively connected to two sets of protective plates. A first connecting plate and a second connecting plate are respectively provided between a pair of limiting fixing plates. The first connecting plate and the second connecting plate are both C-shaped and adapted to the support frame. The second connecting plate is located below the first connecting plate, and a hovering component is installed on the inner side of the second connecting plate.

[0012] Optionally, the hovering assembly includes an outwardly protruding grip, which is fixedly connected to the middle of the second connecting plate. The inner side of the grip is provided with an arc-shaped elastic sheet, the two ends of which are fixedly connected to the inner wall of the grip, and the middle part of the elastic sheet protrudes away from the grip.

[0013] Optionally, the hovering assembly further includes a pressing block connected to the limiting and fixing plate, wherein the side wall of the limiting and fixing plate has a movable groove, and the pressing block is embedded in the movable groove and slidably engaged with the limiting and fixing plate.

[0014] Optionally, a traction wire is fixedly connected between the extrusion block and the elastic sheet, and an embedded groove is provided on the inner side wall of the second connecting plate, with the middle part of the traction wire embedded in the embedded groove and closely attached to the second connecting plate.

[0015] Optionally, the extrusion block has multiple sets of rubber protrusions on the side away from the traction wire, the rubber protrusions are fixedly connected to the extrusion block, the side of the extrusion block connected to the traction wire is an arc-shaped surface, and the side wall of the extrusion block is provided with a deformation groove, the deformation groove is close to the arc-shaped surface of the extrusion block to form a thin wall.

[0016] Optionally, the outer wall of the elastic sheet is provided with multiple sets of guide grooves, and the multiple sets of guide grooves are arranged in parallel.

[0017] Compared with the prior art, this utility model has at least the following beneficial effects:

[0018] In the above solution, by setting up a protective mechanism, the protective mechanism consisting of a protective plate and a fixed frame can cooperate with the support frame to form a closed cavity. The sample is located in the cavity for testing, which can avoid the flying of debris after the sample breaks, making it convenient to clean up the debris later. At the same time, it can also prevent the flying debris from injuring the operators, thus improving the safety of the equipment.

[0019] By setting a pressure switch, which works in conjunction with the protective mechanism and the start button to form a self-locking mechanism, the start button cannot be used when the protective mechanism is in the open state. This avoids the failure of the protective mechanism due to improper operation and further improves the safety of the equipment. Attached Figure Description

[0020] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0021] Figure 1 A three-dimensional structural diagram of a tensile force testing device for mechanical measurement.

[0022] Figure 2 A three-dimensional structural diagram of the base and support frame in conjunction;

[0023] Figure 3 for Figure 2 A magnified three-dimensional structural diagram at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the protective mechanism;

[0025] Figure 5 This is a partial enlarged structural diagram of the hovering component;

[0026] Figure 6 This is a magnified three-dimensional structural diagram of the extrusion block.

[0027] Figure label:

[0028] 1. Base; 2. Support frame; 3. Start button; 4. Limiting groove; 5. Pressure switch; 6. Positioning groove; 7. Protective plate; 8. Fixing frame; 9. Limiting fixing plate; 10. First connecting plate; 11. Second connecting plate; 12. Suspension assembly; 13. Handle; 14. Elastic sheet; 15. Embedded groove; 16. Traction wire; 17. Extrusion block; 18. Movable groove; 19. Guide groove; 20. Deformation groove; 21. Rubber protrusion.

[0029] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0030] The tensile force testing device for mechanical measurement provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0031] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when describing a specific feature, structure, or characteristic in conjunction with embodiments, implementing such a feature, structure, or characteristic in conjunction with other embodiments should be within the knowledge of those skilled in the art.

[0032] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0033] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0034] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0035] like Figures 1 to 6As shown, an embodiment of this utility model provides a tensile testing device for mechanical measurement, including a base 1. A symmetrically distributed support frame 2 is fixedly connected to the top of the base 1. The support frame 2 has an overall U-shaped structure. Limiting grooves 4 are respectively opened on the opposite end faces of the outer side wall of the support frame 2. A protective mechanism is sleeved on the outside of the support frame 2. The protective mechanism includes protective plates 7 respectively provided on the front and rear sides of the support frame 2. A closed cavity is formed between the protective plates 7 and the support frame 2. The two sets of protective plates 7 are fixedly connected by a fixing frame 8. The fixing frame 8 is slidably connected to the support frame 2 through the limiting grooves 4. A start button 3 is installed on the base 1. A pressure switch 5 is embedded in the top of the base 1. The pressure switch 5 is connected in series with the start button 3. One set of protective plates 7 is located above the pressure switch 5. A positioning groove 6 is opened on the top of the base 1. The pressure switch 5 is fixedly connected inside the positioning groove 6. The positioning groove 6 is adapted to the protective plate 7. When the protective plate 7 moves down to the lowest point, the protective plate 7 enters the positioning groove 6 and presses the pressure switch 5, thereby triggering the pressure switch 5 to close, so that a closed circuit is formed between the start button 3 and the pressure switch 5.

[0036] Compared to traditional tensile testing machines, this technical solution connects the start button 3 and the power supply in series with a pressure switch 5. When the pressure switch 5 is off, the start button 3 is disconnected from the power supply and cannot work. When the protective plate 7 is placed on the pressure switch 5 and its own weight exerts pressure on the pressure switch 5, the circuit between the pressure switch 5 and the start button 3 is completed, and the start button 3 can normally control the start or stop of the equipment. This achieves linkage between the protective mechanism and the start button 3, preventing the equipment from starting when the protective mechanism is open. This avoids the failure of the protective mechanism due to tensile testing without closing the protective door, thus improving safety and efficiency.

[0037] like Figures 4 to 6 As shown, the protective plate 7 is preferably made of tempered glass, which has good explosion-proof properties and can resist the impact of material debris. At the same time, the glass is a transparent material, which makes it easy to observe the inside of the protective plate 7. The fixing frame 8 includes two pairs of limiting fixing plates 9 that are respectively connected to the two sets of protective plates 7. A first connecting plate 10 and a second connecting plate 11 are respectively provided between the pair of limiting fixing plates 9. The first connecting plate 10 and the second connecting plate 11 are both C-shaped and adapted to the support frame 2. The second connecting plate 11 is located below the first connecting plate 10. A hovering component 12 is installed on the inner side of the second connecting plate 11. The hovering component 12 includes an outwardly protruding handle 13. The handle 13 is fixedly connected to the middle of the second connecting plate 11. An arc-shaped elastic sheet 14 is provided on the inner side of the handle 13. The two ends of the elastic sheet 14 are fixedly connected to the inner wall of the handle 13, and the middle of the elastic sheet 14 protrudes away from the handle 13.

[0038] like Figure 5 and Figure 6As shown, the hovering assembly 12 also includes a pressing block 17 connected to the limiting fixing plate 9. The limiting fixing plate 9 has a movable groove 18 on its side wall. The pressing block 17 is embedded in the movable groove 18 and slidably engaged with the limiting fixing plate 9. A traction wire 16 is fixedly connected between the pressing block 17 and the elastic sheet 14. The inner side wall of the second connecting plate 11 has an embedded groove 15. The middle part of the traction wire 16 is embedded in the embedded groove 15 and closely attached to the second connecting plate 11. By pressing the elastic sheet 14, the traction wire 16 connected to it can be tightened and moved towards the elastic sheet 14. The movement of the elastic sheet 14 will cause the pressing block 17 to move inside the movable groove 18, thereby changing the friction between the pressing block 17 and the inner wall of the limiting groove 4.

[0039] The compression block 17 has multiple sets of rubber protrusions 21 on the side away from the traction wire 16. The rubber protrusions 21 are fixedly connected to the compression block 17. The side of the compression block 17 connected to the traction wire 16 is an arc-shaped surface. A deformation groove 20 is formed on the side wall of the compression block 17. The deformation groove 20 is close to the arc-shaped surface of the compression block 17 to form a thin wall. When the limiting fixing plate 9 is embedded in the limiting slide groove 4, the apex of the arc-shaped surface of the compression block 17 contacts the inner side wall of the limiting slide groove 4, and the rubber protrusions 21 are squeezed at this time. When the traction wire 16 pulls the compression block 17 to move, the arc-shaped surface of the compression block 17 is deformed by pressure, and the deformation groove 20 is the deformation groove of the compression block 17. The space provided allows the pressure on the rubber protrusion 21 to decrease after the extrusion block 17 deforms and moves, and the friction between the rubber protrusion 21 and the inner wall of the limiting slide groove 4 also decreases, making it easier for the extrusion block 17 to slide relative to the limiting slide groove 4. When the traction force of the traction wire 16 on the extrusion block 17 disappears, the arc surface of the extrusion block 17 returns to its original shape, and the rubber protrusion 21 is pressed tightly against the inner wall of the limiting slide groove 4, so that the limiting fixing plate 9 can be suspended inside the limiting slide groove 4. Multiple sets of guide grooves 19 are provided on the outer wall of the elastic sheet 14. The multiple sets of guide grooves 19 are arranged in parallel. The guide grooves 19 can guide the deformation direction of the elastic sheet 14 and reduce the difficulty of deformation.

[0040] The working principle of the technical solution provided by this utility model is as follows: In use, first grasp the handle 13, and simultaneously grip the elastic sheet 14, causing the elastic sheet 14 to deform towards the handle 13, and causing the traction wire 16 to move taut. When the traction wire 16 pulls the compression block 17 to move, the arc-shaped surface of the compression block 17 is deformed by pressure, the pressure on the rubber protrusion 21 decreases, and the friction between the rubber protrusion 21 and the inner wall of the limiting slide groove 4 also decreases. While holding the handle 13, the operator pushes upwards, which can drive the limiting fixing plate 9 to move within the limiting slide groove 4. Slide the protective plate 7 upwards, thereby moving the protective plate 7 upwards. The cavity formed between the protective plate 7 and the support frame 2 opens, exposing the clamp inside the support frame 2. After the sample is clamped and fixed by the clamp, hold the handle 13 again and pull it downwards. The protective plate 7 moves down and embeds into the positioning groove 6, and the cavity closes again. At the same time, the protective plate 7 presses the pressure switch 5, triggering the switch to close. The circuit between the pressure switch 5 and the start button 3 is connected. Pressing the start button 3 can control the equipment to start. After the test is completed, hold the handle 13 again to move the protective plate 7 upwards, and then take out the sample.

[0041] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0042] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A tension detection device for mechanical metrology, characterized by, The base is fixedly connected with symmetrically distributed support frames at the top, the support frames are provided with protection mechanisms outside, the protection mechanisms include protection plates provided on the front and rear sides of the support frames respectively, closed cavities are formed between the protection plates and the support frames, two groups of the protection plates are fixedly connected through fixing frames, a start button is installed on the base, a pressure switch is embedded in the top of the base, the pressure switch is connected in series with the start button, and one group of the protection plates is located above the pressure switch.

2. The tension detection device for mechanical metrology according to claim 1, characterized in that, The support frame has a U-shaped structure as a whole, and opposite end faces of the outer side wall of the support frame are respectively provided with limiting sliding grooves.

3. The tension detection device for mechanical metrology according to claim 2, characterized in that, The top of the base is provided with a positioning groove, the pressure switch is fixedly connected inside the positioning groove, and the positioning groove is matched with the protection plate.

4. The tension detection device for mechanical metrology according to claim 3, characterized in that, The protection plate is preferably made of tempered glass.

5. The tension detection device for mechanical metrology according to claim 4, characterized in that, The fixing frame includes two pairs of limiting fixing plates connected with the two groups of protection plates respectively, a first connecting plate and a second connecting plate are respectively arranged between one pair of the limiting fixing plates, the first connecting plate and the second connecting plate have a C-shaped structure and are matched with the support frame, the second connecting plate is located below the first connecting plate, and a hovering assembly is installed inside the second connecting plate.

6. The tension detection device for mechanical metrology according to claim 5, characterized in that, The hovering assembly includes an outwardly protruding handle, the handle is fixedly connected to the middle part of the second connecting plate, an elastic sheet with an arc structure is arranged inside the handle, the elastic sheet is fixedly connected to the inner wall of the handle at both ends, and the middle part of the elastic sheet protrudes away from the handle.

7. The tension detection device for mechanical metrology according to claim 6, characterized in that, The hovering assembly further includes a pressing block connected with the limiting fixing plate, a movable groove is formed in the side wall of the limiting fixing plate, and the pressing block is embedded in the movable groove and is slidably connected with the limiting fixing plate.

8. The tension detection device for mechanical metrology according to claim 7, characterized in that, A traction wire is fixedly connected between the pressing block and the elastic sheet, an embedded groove is formed in the inner wall of the second connecting plate, and the middle part of the traction wire is embedded in the embedded groove and closely attached to the second connecting plate.

9. The tension detection device for mechanical metrology according to claim 8, characterized in that, A plurality of rubber protrusions are arranged on the side of the pressing block away from the traction wire, the rubber protrusions are fixedly connected with the pressing block, the side of the pressing block connected with the traction wire is an arc surface, a deformation groove is formed in the side wall of the pressing block, and the deformation groove is close to the arc surface of the pressing block to form a thin wall.

10. The tension detection device for mechanical metrology according to claim 9, characterized in that, A plurality of guide grooves are formed in the outer side wall of the elastic sheet, and the plurality of guide grooves are arranged in parallel.

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