Hardmeter with anti-deviation structure

Abstract

The utility model discloses a durometer with an anti-deviation structure, which comprises a durometer main body, a supporting rod is arranged on the front side of the upper end of the durometer main body, an objective table is arranged at the upper end of the supporting rod, the durometer also comprises four sliding cavities which are arranged in the objective table, the sliding cavities are annularly distributed at equal intervals, and the sliding cavities are communicated with the objective table. A sliding cavity is formed in the upper side of the durometer main body, a sliding block is arranged in the sliding cavity, an L-shaped block is fixedly adhered to the outer side of the sliding block, one end of the L-shaped block extends to the outside of the sliding cavity, a U-shaped transparent protection plate is arranged on the upper side of the outside of the durometer main body, and the U-shaped transparent protection plate is fixedly adhered to one end, located outside the sliding cavity, of the L-shaped block. According to the durometer with the anti-deviation structure, the deviation of a sample during clamping detection can be avoided, the detection precision is ensured, meanwhile, the two sides and the front end of the objective table can be protected through the U-shaped transparent protection plate, the damage caused by jumping of the detected sample can be avoided, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hardness testers, in particular to a hardness tester with an anti-deviating structure. Background Art

[0002] A hardness tester is a hardness testing instrument that applies pressure to the test material with a standard tool, and then measures the size and depth of the mark left by the pressure on the surface of the material, thereby inferring the hardness of the material. Hardness testers are widely used in many industries, including the metal materials industry, plastics industry, automotive industry, pharmaceutical industry, and rubber industry.

[0003] The existing Chinese patent with announcement number CN209802892U discloses a hardness tester with a replaceable stage, including a diamond indenter and a connected base and a bracket, wherein the diamond indenter is arranged on the bracket, the base includes a receiving cavity and a latch hole, the receiving cavity communicates with the top and the bottom of the base, and the latch hole is arranged on the peripheral wall of the base; it also includes a latch and a cube stage, the stage is located in the receiving cavity, grooves are arranged on the six planes of the stage, any two of the grooves have different shapes, and a positioning hole is also arranged on the stage, one end of the latch passes through the latch hole and is inserted into the positioning hole.

[0004] Although the above scheme can easily match the test materials of different shapes to form a good limit by replacing the stage, it is inconvenient to replace the stage when testing different test samples. At the same time, if the operation is improper or the test sample is not firmly fixed during the test, the test sample may fly and injure the operator. Therefore, it does not meet the existing needs. In this regard, we propose a hardness tester with an anti-drift structure. Utility Model Content

[0005] The purpose of the utility model is to provide a hardness tester with an anti-drift structure to solve the problems in the above-mentioned background technology that the hardness tester needs to replace the stage to fix different test samples when in use, which makes the test more complicated and lacks protective measures, which makes it easy for the test samples to fly and injure the operator during the test.

[0006] To achieve the above object, the utility model provides the following technical solution: a hardness tester with an anti-drift structure, comprising a hardness tester body, a support rod is installed on the front side of the upper end of the hardness tester body, and a loading platform is arranged on the upper end of the support rod;

[0007] It also includes a sliding cavity, which is opened inside the stage, and four sliding cavities are opened in a circular shape and equidistantly distributed, a sliding block is arranged inside the sliding cavity, and an L-shaped block is adhered and fixed to the outside of the sliding cavity, and one end of the L-shaped block extends to the outside of the sliding cavity, and a U-shaped transparent protective plate is arranged on the upper side of the outside of the hardness tester body, and the U-shaped transparent protective plate is adhered and fixed to one end of the L-shaped block located outside the sliding cavity;

[0008] It also includes a lifting seat, which is arranged at the upper ends of both sides of the hardness tester body, the interior of the lifting seat is rotatably provided with a threaded rod, the exterior of the threaded rod is threadedly connected with a lifting plate, one end of the lifting plate extends to the outside of the lifting seat, and the lifting plate is slidably matched with the lifting seat.

[0009] Preferably, a motor is provided at the upper end of the lifting seat, and the output end of the motor is connected to the threaded rod through a coupling.

[0010] Preferably, guide rods are welded to the front and rear sides of the lifting seat, the guide rods pass through the lifting plate, and the guide rods are slidably matched with the lifting plate.

[0011] Preferably, a plurality of infrared generators equidistantly distributed in a ring shape are arranged directly above the stage, and a control switch is arranged on the upper side of the front end of the hardness tester body.

[0012] Preferably, an extrusion plate is provided on the inner side of the end of the L-shaped block located outside the loading platform, a connecting rod is provided between the extrusion plate and the end of the L-shaped block located outside the loading platform, and the connecting rod is adhered and fixed to the extrusion plate and the L-shaped block.

[0013] Preferably, a return spring is provided inside the sliding cavity, one end of the return spring is connected to the sliding cavity, and the other end of the return spring is connected to the sliding block.

[0014] Preferably, the upper and lower sides of the interior of the sliding cavity are provided with limiting grooves, and the limiting grooves are slidably matched with the sliding block.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model opens four sliding cavities in annular shapes and are equidistantly distributed inside the stage. When placing the test sample on the stage, one of the L-shaped blocks can be pulled first, and the L-shaped block will stretch the reset spring connected to it. After the test sample is placed on the stage, the position of the L-shaped block can be restored under the elastic recovery action of the reset spring. Since the reset springs in the four sliding cavities have the same specifications and the same stiffness coefficients, the test sample can be clamped and fixed in the middle of the stage eventually, which can avoid the deviation of the sample during clamping and testing and ensure the accuracy of the test. At the same time, the fixation in four directions can fix most of the test samples without replacing the stage, which is easy to use.

[0017] 2. The utility model is provided with lifting seats at the upper ends of both sides of the hardness tester body. When testing, the motor can be started, the motor will rotate the threaded rod, the threaded rod will drive the lifting plate to move downward, and the lifting plate will drive the U-shaped transparent protective plate to move downward synchronously, so that the U-shaped transparent protective plate can protect both sides and the front end of the stage, avoid the damage caused by the flying of the test sample, increase safety, and the transparent elasticity of the U-shaped transparent protective plate will not affect the normal reading, so it is practical.

[0018] 3. The utility model installs a plurality of infrared generators which are evenly distributed in a ring shape just above the stage. When testing is performed, the infrared generator can be started by a control switch. The infrared generator can emit infrared rays downward, and the infrared rays can form a circle shape, so that the test sample on the stage can be quickly positioned, thereby improving the positioning accuracy and speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view schematic diagram of the internal structure of the utility model;

[0020] Figure 2 It is a side view schematic diagram of the overall structure of the utility model;

[0021] Figure 3 It is a bottom view schematic diagram of the internal structure of the utility model;

[0022] Figure 4 It is a top view schematic diagram of the internal structure of the loading platform of the utility model;

[0023] Figure 5 For the utility model Figure 1 A partial enlarged view of area A.

[0024] In the figure: 1. Hardness tester body; 2. Support rod; 3. Loading platform; 4. Lifting seat; 5. Motor; 6. Threaded rod; 7. Lifting plate; 8. Guide rod; 9. U-shaped transparent protective plate; 10. Infrared generator; 11. Sliding cavity; 12. L-shaped block; 13. Sliding block; 14. Reset spring; 15. Limiting groove; 16. Connecting rod; 17. Extrusion plate; 18. Control switch. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 The utility model provides a technical solution: a hardness tester with an anti-deviating structure, comprising a hardness tester body 1, a support rod 2 is installed on the front side of the upper end of the hardness tester body 1, and a loading platform 3 is arranged on the upper end of the support rod 2;

[0027] It also includes a slide cavity 11, which is opened inside the stage 3, and the slide cavity 11 is opened with four equidistantly distributed in a ring shape, a slide block 13 is arranged inside the slide cavity 11, and an L-shaped block 12 is bonded and fixed to the outside of the slide cavity 11, and one end of the L-shaped block 12 extends to the outside of the slide cavity 11, and a U-shaped transparent protective plate 9 is arranged on the upper side of the outside of the hardness tester body 1, and the U-shaped transparent protective plate 9 is bonded and fixed to one end of the L-shaped block 12 located outside the slide cavity 11;

[0028] It also includes a lifting seat 4, which is arranged at the upper ends of both sides of the hardness tester body 1. The inside of the lifting seat 4 is rotatably provided with a threaded rod 6, the outside of the threaded rod 6 is threadedly connected with a lifting plate 7, one end of the lifting plate 7 extends to the outside of the lifting seat 4, and the lifting plate 7 is slidably matched with the lifting seat 4.

[0029] When in use, the motor 5 can be started to drive the threaded rod 6 to rotate during detection. Under the axial limit of the guide rod 8, the rotation of the lifting plate 7 will be converted into vertical movement up and down. When the lifting plate 7 moves down, it will drive the U-shaped transparent protective plate 9 to move down synchronously, thereby protecting the front end and both sides of the stage 3, avoiding damage caused by the flying of the test sample, and the U-shaped transparent protective plate 9 will not affect the normal reading, so it is very practical.

[0030] See also Figure 1 The upper end of the lifting seat 4 is provided with a motor 5, and the output end of the motor 5 is connected to the threaded rod 6 through a coupling. The setting of the motor 5 can provide power for the movement of the U-shaped transparent protective plate 9;

[0031] See also Figure 3 The front and rear sides of the lifting seat 4 are welded with guide rods 8, which penetrate the lifting plate 7 and slide with the lifting plate 7. The setting of the guide rods 8 can limit the axial position of the lifting plate 7, so that the rotation of the guide rods 8 is converted into vertical movement up and down;

[0032] See also Figure 1 and Figure 3 A plurality of infrared generators 10 are arranged in a circular shape and are equidistantly distributed above the stage 3. A control switch 18 is arranged on the upper side of the front end of the hardness tester body 1. The infrared generator 10 can be controlled by the control switch 18. The infrared generator 10 can be used to quickly locate the test sample on the stage 3, thereby improving the positioning accuracy and speed.

[0033] See also Figure 1 and Figure 2 , an extrusion plate 17 is provided on the inner side of the end of the L-shaped block 12 located outside the stage 3, and a connecting rod 16 is provided between the extrusion plate 17 and the end of the L-shaped block 12 located outside the stage 3, and the connecting rod 16 is adhered and fixed to the extrusion plate 17 and the L-shaped block 12, and the extrusion plate 17 is a hard rubber plate, which can avoid wear on the test sample when clamping and fixing;

[0034] See also Figure 4 and Figure 5 A return spring 14 is disposed inside the sliding cavity 11, one end of the return spring 14 is connected to the sliding cavity 11, and the other end of the return spring 14 is connected to the slider 13. The elastic action of the return spring 14 enables the extrusion plate 17 to clamp and fix the test sample;

[0035] See also Figure 5 The upper and lower sides of the sliding cavity 11 are provided with limiting grooves 15, and the limiting grooves 15 are slidably matched with the slider 13. The limiting grooves 15 can limit the slider 13 to prevent the slider 13 from sliding out and falling off.

[0036] Working principle: When in use, pull one of the L-shaped blocks 12, the L-shaped block 12 will drive the slider 13 to slide inside the sliding cavity 11, the opening of the limit groove 15 can limit the slider 13 to prevent the slider 13 from sliding out and falling off, and the reset spring 14 will be stretched when the slider 13 is pulled, and the L-shaped block 12 is released when the test sample is placed on the stage 3. The position of the L-shaped block 12 can be restored under the elastic recovery action of the reset spring 14, and the squeezing plate 17 can squeeze and push the test sample through the connection of the connecting rod 16, so that the test sample moves toward the middle position of the stage 3. Since the specifications of the reset spring 14 in the sliding cavity 11 are the same, their stiffness coefficients are also the same, so that the test sample can be clamped and fixed at the middle position of the upper end of the stage 3, which can avoid the deviation of the sample during clamping and testing. At the same time, the user can start the infrared generator 10 by controlling the switch 18. The infrared generator 10 will emit infrared rays downward. Multiple infrared generators 10 form a circle shape, so that the infrared rays can form a circle shape, quickly locate the test sample on the stage 3, and enable the operator to quickly know the area of ​​the test position, which is practical. When performing the test, the motor 5 can be started, and the motor 5 will drive the threaded rod 6 to rotate through the coupling, and the threaded rod 6 will drive the lifting plate 7 to rotate synchronously. Since the lifting plate 7 slides with the guide rods 8 on the front and rear sides, the lifting plate 7 will be axially limited, and the rotation of the lifting plate 7 will be converted into vertical movement up and down, so that the lifting plate 7 moves downward, and the lifting plate 7 will drive the U-shaped transparent protective plate 9 to move synchronously, so that the U-shaped transparent protective plate 9 can move downward, and the front end and both sides of the stage 3 are protected, which can avoid the damage caused by the test sample flying, and the U-shaped transparent protective plate 9 will not affect the normal reading, which is practical.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A hardness tester with an anti-drift structure, comprising a hardness tester body (1), a support rod (2) being installed at the front side of the upper end of the hardness tester body (1), and a stage (3) being arranged at the upper end of the support rod (2), characterized in that: It also includes a slide cavity (11) which is opened inside the stage (3), and the slide cavity (11) is opened with four slide cavities (11) distributed in an annular manner and at equal intervals, a slider (13) is arranged inside the slide cavity (11), an L-shaped block (12) is bonded and fixed to the outside of the slider (13), one end of the L-shaped block (12) extends to the outside of the slide cavity (11), and a U-shaped transparent protective plate (9) is arranged on the upper side of the outside of the hardness tester body (1), and the U-shaped transparent protective plate (9) is bonded and fixed to one end of the L-shaped block (12) located outside the slide cavity (11); It also includes a lifting seat (4) which is arranged at the upper ends of both sides of the hardness tester body (1), the interior of the lifting seat (4) is rotatably provided with a threaded rod (6), the exterior of the threaded rod (6) is threadedly connected with a lifting plate (7), one end of the lifting plate (7) extends to the exterior of the lifting seat (4), and the lifting plate (7) is slidably matched with the lifting seat (4).

2. A hardness tester with an anti-deviating structure according to claim 1, characterized in that: The upper end of the lifting seat (4) is provided with a motor (5), and the output end of the motor (5) is connected to the threaded rod (6) through a coupling.

3. A hardness tester with an anti-deviating structure according to claim 1, characterized in that: Guide rods (8) are welded to the front and rear sides of the lifting seat (4), and the guide rods (8) penetrate the lifting plate (7), and the guide rods (8) are slidably matched with the lifting plate (7).

4. A hardness tester with an anti-deviating structure according to claim 1, characterized in that: A plurality of infrared generators (10) are arranged in a circular shape and are equidistantly distributed directly above the loading platform (3), and a control switch (18) is arranged on the upper side of the front end of the hardness tester body (1).

5. The hardness tester with an anti-deviating structure according to claim 1, characterized in that: An extrusion plate (17) is provided on the inner side of the end of the L-shaped block (12) located outside the loading platform (3), and a connecting rod (16) is provided between the extrusion plate (17) and the end of the L-shaped block (12) located outside the loading platform (3), and the connecting rod (16) is bonded and fixed to the extrusion plate (17) and the L-shaped block (12).

6. A hardness tester with an anti-deviating structure according to claim 1, characterized in that: A return spring (14) is arranged inside the sliding cavity (11), one end of the return spring (14) is connected to the sliding cavity (11), and the other end of the return spring (14) is connected to the sliding block (13).

7. A hardness tester with an anti-deviating structure according to claim 1, characterized in that: Limiting grooves (15) are provided on the upper and lower sides of the interior of the sliding cavity (11), and the limiting grooves (15) are slidably matched with the sliding block (13).

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