Portable surface roughness measuring instrument

Abstract

The utility model relates to the technical field of roughness measuring instruments, in particular to a portable surface roughness measuring instrument which comprises a roughness measuring instrument body and a display screen, the display screen is installed on the upper portion of the front side of the outer wall of the roughness measuring instrument body, an elastic piece is connected to the upper portion of the rear end of a back plate, and a hanging rope is fixedly connected to the center of the upper end of a sleeve. The inner wall of the lower portion of the back plate is in threaded connection with a bolt. Through cooperation of a roughness detector, a sliding groove, a sliding block, a back plate, an elastic piece and a hanging rope, after the roughness detector moves upwards to a limit position, a user reversely rotates a bolt to insert the tail end of the bolt into an insertion hole again to limit the vertical positions of the roughness detector and the back plate; the problems that in the prior art, a roughness measuring instrument can only be carried in a bagging or handheld mode, so that the roughness measuring instrument is inconvenient to carry about, and the roughness measuring instrument is prone to being damaged due to collision when being carried about due to the fact that the protection capability on the detection part is insufficient in the carrying process are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of surface roughness measuring instrument technology, specifically a portable surface roughness measuring instrument. Background Technology

[0002] Roughness measuring instruments are characterized by high measurement accuracy, wide measurement range, simple operation, portability, and stable operation. They can be widely used for the inspection of various metal and non-metal processed surfaces. Their design is robust and durable, with significant anti-electromagnetic interference capabilities, conforming to current design trends. For example, a contact surface roughness measuring instrument with application number "202421254179.9" includes a main body of the device and flip plates set on both sides of the lower half of the main body. The flip plates are rotatably connected to the main body of the device.

[0003] However, although it can use a flip plate to support the main body of the device off the ground, the roughness measuring instrument can only be carried by bagging or hand, which makes it inconvenient to carry around. In addition, the protection of the measuring part is insufficient during the carrying process, and it is easy to be damaged by collisions when carried around. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the roughness measuring instrument can only be carried by bagging or hand, which makes it inconvenient to carry around, and the protection of the detection part is insufficient during carrying, making it easy to be damaged by collision. Therefore, a portable surface roughness measuring instrument is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a portable surface roughness measuring instrument, including a roughness measuring instrument and a display screen. The display screen is installed on the upper front side of the outer wall of the roughness measuring instrument. A detection part is machined on the upper rear side of the roughness measuring instrument. A sleeve is sleeved on the upper part of the detection part. A back plate is fixed to the lower rear side of the sleeve. An elastic sheet is connected to the upper rear end of the back plate. A hanging rope is fixedly connected to the upper center of the sleeve. A bolt is threaded to the lower inner wall of the back plate.

[0007] Preferably, sliders are fixedly connected to both sides below the rear end of the back plate, and grooves are machined on the inner walls of both sides above the rear end of the roughness measuring instrument, with a notch machined on the rear side above the groove.

[0008] Preferably, the roughness measuring instrument has a socket machined at the center of its rear end, and the socket is inserted into the end of a bolt.

[0009] Preferably, the threaded head of the bolt is pressed against the back plate by a washer, and multiple buttons are machined on the lower front side of the outer wall of the roughness measuring instrument.

[0010] Preferably, the roughness measuring instrument has a charging hole machined at the lower center.

[0011] The portable surface roughness measuring instrument proposed in this utility model has the following advantages:

[0012] By coordinating the roughness measuring instrument, slide, slider, back plate, elastic plate, and hanging rope, the notch of the slide on the back of the roughness measuring instrument is aligned with the position of the slider. The slider is then inserted into the notch of the slide, and the roughness measuring instrument is moved upward. This allows the slide and slider to restrict the forward, backward, left, and right movements of the roughness measuring instrument and the back plate. When the roughness measuring instrument moves upward to its limit position, the detection part is inserted into the sleeve for protection. The user then reverses the bolt and inserts the end of the bolt back into the insertion hole to restrict the vertical movement of the roughness measuring instrument and the back plate, thus fixing the roughness measuring instrument to the back plate. The connection and installation via the elastic plate or hanging rope make the roughness measuring instrument portable. This effectively avoids the problems of existing roughness measuring instruments, which can only be carried in a bag or by hand, making them inconvenient to carry and providing insufficient protection for the detection part during transport, making them susceptible to damage from collisions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the front appearance structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the rear appearance structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the present invention in its split-section state;

[0016] Figure 4 This is a structural diagram of the present invention in its front and rear split state;

[0017] Figure 5 This utility model Figure 4 A schematic diagram of the structure viewed from below.

[0018] In the diagram: 1. Roughness measuring instrument, 2. Display screen, 3. Button, 4. Sleeve, 5. Hanging rope, 6. Elastic sheet, 7. Back plate, 8. Bolt, 9. Detection section, 10. Slide groove, 11. Insertion hole, 12. Slider. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] See attached document Figure 1-5 In this embodiment, a portable surface roughness measuring instrument includes a roughness measuring instrument 1 and a display screen 2. The display screen 2 is installed on the upper front side of the outer wall of the roughness measuring instrument 1. The display screen 2 is used to display the final roughness test result. The roughness measuring instrument 1 in this case is model DR160. The specific test details are based on the working process of this model. A detection part 9 is machined on the upper rear side of the roughness measuring instrument 1. A sleeve 4 is sleeved on the upper part of the detection part 9. A back plate 7 is fixedly connected to the lower rear side of the sleeve 4. An elastic sheet 6 is connected to the upper rear end of the back plate 7. The elastic sheet 6 is made of thermoplastic elastomer, namely SEBS, which has excellent aging resistance and high elasticity. A hanging rope 5 is fixedly connected to the upper center of the sleeve 4. The material of the hanging rope 5 can be selected according to specific usage requirements. A bolt 8 is threadedly connected to the lower inner wall of the back plate 7.

[0021] See attached document Figure 1-5 In this embodiment, sliders 12 are fixedly connected to both sides of the lower rear end of the back plate 7. Slide grooves 10 are machined on the inner walls of both sides of the upper rear end of the roughness measuring instrument 1. A notch is machined on the upper rear side of the slide grooves 10. An insertion hole 11 is machined at the center of the rear end of the roughness measuring instrument 1. The insertion hole 11 is inserted into the end of the bolt 8. The threaded head of the bolt 8 is pressed against the back plate 7 by a washer. The washer can increase the friction and avoid wear on the back plate 7. A charging hole is machined at the center of the lower end of the roughness measuring instrument 1. Multiple buttons 3 are machined on the lower front side of the outer wall of the roughness measuring instrument 1. The buttons 3 can realize the specific operation process of the roughness measuring instrument 1.

[0022] Working principle:

[0023] When this portable surface roughness measuring instrument is needed, firstly, the elastic plate 6 on the back of the back plate 7 can be pulled outwards. Then, the elastic plate 6 and the back plate 7 can be inserted into the user's belt or the chest pocket of their clothing. Next, the elastic plate 6 can be released so that, under its own elastic force (the elastic plate 6 is made of thermoplastic elastomer, i.e., SEBS, which has excellent aging resistance and high elasticity), the elastic plate 6 and the back plate 7 are tightly clamped into the user's belt or the chest pocket of their clothing. Alternatively, the user can also carry the back plate 7 by wrapping it around their arm with the lanyard 5. This achieves the portability requirement of the back plate 7 and the roughness measuring instrument 1. When the roughness measuring instrument 1 needs to be used again, the user can loosen the bolt 8, allowing the portion of the bolt 8 inserted into the insertion hole 11 on the back of the roughness measuring instrument 1 to be pulled out. Then, the roughness measuring instrument 1 can be pulled down from top to bottom on the outer wall of the back plate 7, causing the slider 12 to move from... The bottom of the slide 10 is slid to the uppermost notch position, so that the roughness measuring instrument 1 can be taken out from the slider 12. In actual use, the roughness measuring instrument 1 can be held by hand and the device can be operated by pressing the button 3. When testing is required, the roughness measuring instrument 1 is placed in the corresponding position, and the detection unit 9 is located directly above the surface to be tested. The detection unit 9 acts as the transmitting and receiving end of the oscilloscope. The transmitted wave is reflected after contacting the surface to be tested. The change of the wave converts the small morphological features of the surface to be tested into a small electrical signal. The internal processor of the roughness measuring instrument 1 converts the electrical signal into a digital signal through techniques such as adjusting the amplification gain and filtering. Finally, the roughness of the surface to be tested is calculated (the roughness measuring instrument 1 in this case is model DR160, and the specific test details are based on the working process of this model), and finally displayed on the display screen 2.

[0024] After the inspection is completed and the roughness measuring instrument 1 is no longer needed, the user can align the notch of the groove 10 on the back of the roughness measuring instrument 1 with the position of the slider 12, insert the slider 12 into the notch of the groove 10, and then move the roughness measuring instrument 1 upwards. This allows the groove 10 and the slider 12 to restrict the front-back and left-right movement of the roughness measuring instrument 1 and the back plate 7. When the roughness measuring instrument 1 moves upwards to its limit position (i.e., the bottom of the inner wall of the groove 10 is pressed against the slider 12), the detection part 9 is inserted into the sleeve 4 for protection. At the same time, the height of the bolt 8 and the insertion hole 11 are aligned. With the position aligned, the user then reverses the rotation of bolt 8 to insert the end of bolt 8 back into the socket 11, restricting the vertical position of the roughness measuring instrument 1 and the back plate 7, thus achieving a fixed connection between the roughness measuring instrument 1 and the back plate 7. Furthermore, the roughness measuring instrument 1 can be easily carried by connecting and installing it through the elastic sheet 6 or the hanging rope 5. This effectively avoids the problem in the prior art where the roughness measuring instrument can only be carried by putting it in a bag or holding it by hand, which makes it inconvenient to carry around. In addition, the protection of the detection part is insufficient during the carrying process, and it is easily damaged by collisions when carried around.

[0025] Note: The surface roughness measuring instrument 1 can be charged periodically through the charging port below it.

[0026] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A portable surface roughness measuring instrument, comprising a roughness measuring instrument (1) and a display screen (2), wherein the display screen (2) is mounted on the upper front part of the outer wall of the roughness measuring instrument (1), characterized in that: The roughness measuring instrument (1) has a detection part (9) machined on the upper rear side. A sleeve (4) is sleeved on the upper part of the detection part (9). A back plate (7) is fixed to the lower rear side of the sleeve (4). An elastic sheet (6) is connected to the upper rear end of the back plate (7). A hanging rope (5) is fixedly connected to the upper center of the sleeve (4). A bolt (8) is threaded on the lower inner wall of the back plate (7).

2. The portable surface roughness measuring instrument according to claim 1, characterized in that: The back plate (7) has sliders (12) fixedly connected to both sides below the rear end. The roughness measuring instrument (1) has grooves (10) machined on the inner walls of both sides above the rear end. The grooves (10) have notches machined on the rear side above the rear end.

3. The portable surface roughness measuring instrument according to claim 1, characterized in that: The roughness measuring instrument (1) has a socket (11) machined at the center of its rear end, and the socket (11) is inserted into the end of the bolt (8).

4. The portable surface roughness measuring instrument according to claim 1, characterized in that: The threaded head of the bolt (8) is pressed against the back plate (7) by a washer, and multiple buttons (3) are machined on the lower front side of the outer wall of the roughness measuring instrument (1).

5. The portable surface roughness measuring instrument according to claim 1, characterized in that: The roughness measuring instrument (1) has a charging hole machined at the lower center.

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