Flatness detection device

By combining threaded engagement and bearing structure design, the problems of loose locking and non-adjustable cantilever length in the flatness detection device are solved, achieving stable lifting and flexible extension, thus improving the convenience and accuracy of detection.

CN223795970UActive Publication Date: 2026-01-13WUXI JUSHENG METAL PROD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520483400.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-01-13
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

Existing flatness testing devices are prone to slipping after adjustment due to loose locking buttons, and the cantilever length is fixed and cannot be adjusted, making the device inconvenient to use.

Method used

It adopts a threaded engagement and bearing structure, and achieves self-locking and telescopic adjustment through the combination design of lifting adjustment cylinder and telescopic adjustment cylinder with fixed bearing rod, lifting bearing plate and telescopic cantilever rod.

Benefits of technology

The device achieves stable lifting and lowering and flexible cantilever length adjustment, improving the convenience and accuracy of testing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223795970U_ABST
    Figure CN223795970U_ABST
Patent Text Reader

Abstract

The utility model provides a flatness detection device, which relates to the technical field of flatness detection and comprises a device body. The device body is provided with a fixed bearing rod in the up-down direction, threads are formed in the outer circumference of the fixed bearing rod, a strip-shaped hole penetrating through the up-down direction in the left-right direction is formed in the fixed bearing rod, a regular hexagonal prism is arranged on the bottom end face of the fixed bearing rod, and a threaded column is arranged on the bottom end face of the regular hexagonal prism of the fixed bearing rod. A lifting adjusting cylinder in the vertical direction is installed on the outer circumference of the fixed bearing rod through threads, and threads are formed in the inner circumference of the lifting adjusting cylinder, so that the lifting adjusting cylinder is conveniently installed on the fixed bearing rod through the threads to bear the lifting bearing plate, and the lifting adjusting cylinder conveniently drives the lifting bearing plate to synchronously ascend and descend through thread engagement; the problems that after being adjusted in a lifting mode, the device is locked and fixed through a locking button, so that the device easily slides down due to looseness of the locking button, lifting measures are not conveniently added on the device, and self-locking of the device is achieved through threads are solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of flatness detection technology, and in particular relates to a flatness detection device. Background Technology

[0002] Steel production is the process of shaping steel ingots, billets, or steel into materials with specific shapes, sizes, and properties through pressure processing. After steel production is completed, various tests are required to ensure that its quality meets design requirements. Among these tests, steel flatness testing mainly assesses the flatness of the steel surface. Through accurate flatness testing, it can be ensured that the application of steel in fields such as construction and machinery manufacturing meets standards.

[0003] Based on the above, the inventors have discovered the following shortcomings in existing flatness detection devices:

[0004] 1. After the device is adjusted in height, it is locked and fixed by a locking button. This makes the device prone to sliding down due to the locking button loosening. It is inconvenient to add lifting measures to the device so that the device can achieve self-locking through threads.

[0005] 2. The cantilever length of the device is fixed, and it is not possible to adjust the cantilever length according to the actual situation. It is also inconvenient to add adjustment measures to the device to adjust the cantilever length. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a flatness detection device. This addresses the issues of existing devices that, after adjustment, are locked in place using a locking button, causing the device to easily slip due to loosening of the locking button, making it inconvenient to add lifting mechanisms to the device to achieve self-locking via threads; and the fixed cantilever length of the device, making it impossible to adjust the cantilever length according to actual conditions, and inconvenient to add adjustment mechanisms to the device to allow for cantilever length adjustment.

[0007] The purpose and effectiveness of this flatness testing device are achieved through the following specific technical means:

[0008] A flatness testing device includes a device body; the device body is provided with a fixed support rod in the vertical direction, the outer circumference of the fixed support rod is threaded, the inner circumference of the fixed support rod is provided with a strip hole in the vertical direction and extending horizontally, the bottom end face of the fixed support rod is provided with a regular hexagonal prism, the bottom end face of the regular hexagonal prism of the fixed support rod is provided with a threaded post, the outer circumference of the fixed support rod is threaded and a vertical lifting adjustment cylinder is installed in the vertical direction, the inner circumference of the lifting adjustment cylinder is threaded, the outer circumference of the lifting adjustment cylinder is provided with an anti-slip groove in an annular array, the top outer circumference of the lifting adjustment cylinder is provided with a bearing ring groove, the bearing ring groove of the lifting adjustment cylinder is installed with a bearing in the horizontal direction, the left side of the lifting support plate is provided with a bearing hole extending vertically, the right end of the top end face of the lifting support plate is provided with a vertical plate in the front-back direction, the right end face of the vertical plate of the lifting support plate is provided with a bearing circular groove, the inner circumference of the bearing circular groove of the lifting support plate is provided with a through hole extending horizontally, and the top wall of the through hole of the lifting support plate is provided with a threaded hole extending vertically.

[0009] Furthermore, a left-right direction fixing locking pin is installed inside the threaded hole of the telescopic cantilever rod. The outer circumference of the fixing locking pin is threaded, and a regular hexagonal groove is opened on the left end face of the fixing locking pin. An up-down direction electronic dial indicator is inserted into the insertion hole of the telescopic cantilever rod, and the outer circumferential surface of the lower insertion rod of the electronic dial indicator is provided with a frosted surface.

[0010] Furthermore, the telescopic cantilever rod has threads on its outer circumference, an insertion hole that extends vertically through the left end of the telescopic cantilever rod, and a threaded hole that extends horizontally through the left side wall of the insertion hole of the telescopic cantilever rod.

[0011] Furthermore, a telescopic cantilever rod in the left-right direction is installed inside the telescopic adjustment cylinder by threads, and a strip groove in the left-right direction is opened on the top of the outer circumference of the telescopic cantilever rod.

[0012] Furthermore, the telescopic adjusting cylinder is provided with anti-slip grooves in annular array on its outer circumference, and a bearing ring groove is provided on the outer circumference of the left end of the telescopic adjusting cylinder.

[0013] Furthermore, the bearing groove of the lifting bearing plate is equipped with a telescopic adjustment cylinder in the left and right direction through the bearing, and the telescopic adjustment cylinder has a thread on its inner circumference.

[0014] Furthermore, a fixed anti-rotation post is installed inside the threaded hole of the lifting bearing plate in the vertical direction. A threaded post is provided at the lower part of the fixed anti-rotation post. A limit ring plate is provided on the outer circumference of the top of the threaded post of the fixed anti-rotation post. A regular hexagonal prism is provided on the top end face of the threaded post of the fixed anti-rotation post.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The convenient lifting adjustment cylinder is installed on the fixed support rod by threads to support the lifting support plate. The convenient lifting adjustment cylinder drives the lifting support plate to rise and fall synchronously through thread engagement. This solves the problem that after the device is adjusted, it is locked and fixed by the locking button, which makes the device prone to sliding down due to the loosening of the locking button. It is also inconvenient to add lifting measures to the device so that the device can achieve self-locking through threads.

[0017] The convenient telescopic adjustment cylinder is mounted on the lifting load plate via bearings to support the telescopic cantilever rod. The telescopic cantilever rod can be moved left and right for telescopic adjustment via threaded engagement. This solves the problem that the cantilever length of the device is fixed and cannot be adjusted according to actual conditions, and it is inconvenient to add adjustment measures to the device to make the cantilever length telescopic. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0019] Figure 2 This is a disassembled structural diagram of the present invention.

[0020] Figure 3 This is an assembly diagram of the lifting adjustment cylinder and lifting support plate of this utility model.

[0021] Figure 4 This is an assembly diagram of the lifting bearing plate and the fixed anti-rotation column of this utility model.

[0022] Figure 5 This is an assembly diagram of the lifting support plate and telescopic adjustment cylinder of this utility model.

[0023] Figure 6 This is an assembly diagram of the telescopic cantilever rod and the fixing locking column of this utility model.

[0024] In the diagram: 1. Device body; 2. Fixed bearing rod; 3. Lifting adjustment cylinder; 4. Lifting bearing plate; 5. Fixed anti-rotation column; 6. Telescopic adjustment cylinder; 7. Telescopic cantilever rod; 8. Fixed locking column; 9. Electronic dial indicator. Detailed Implementation

[0025] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0026] Example 1:

[0027] As attached Figure 1 To be continued Figure 6 As shown:

[0028] This utility model provides a flatness testing device, including a device body 1. The device body 1 is provided with a fixed bearing rod 2 in the vertical direction for easy support of various components. The fixed bearing rod 2 has threads on its outer circumference for easy installation of the lifting adjustment cylinder 3. The fixed bearing rod 2 has a horizontal through-hole in the vertical direction for easy insertion of the telescopic cantilever rod 7 to prevent rotation of the lifting bearing plate 4. The bottom end face of the fixed bearing rod 2 is provided with a regular hexagonal prism for easy rotation and disassembly using tools. The bottom end face of the regular hexagonal prism of the fixed bearing rod 2 is provided with a threaded post for easy installation by thread. The lifting adjustment cylinder 3 in the vertical direction is installed on the outer circumference of the fixed bearing rod 2 by threads, which facilitates lifting and lowering of the lifting adjustment cylinder 3 by thread engagement. The inner circumference of the lifting adjustment cylinder 3 is provided with threads for easy installation of the fixed bearing rod 2 by threads. The outer circumference of the lifting adjustment cylinder 3 is arranged in a ring. The lifting adjustment cylinder 3 has anti-slip grooves to facilitate rotation and prevent slippage. A bearing ring groove is formed on the outer circumference of the top of the lifting adjustment cylinder 3, allowing the lifting support plate 4 to be installed via bearings. The lifting support plate 4, moving horizontally, is installed on the bearing ring groove of the lifting adjustment cylinder 3 via bearings, facilitating synchronous lifting and lowering of the lifting support plate 4 via the bearings. A through-hole bearing hole is formed on the left side of the lifting support plate 4, allowing the lifting adjustment cylinder 3 to be installed via bearings. A front-to-back vertical plate is provided on the right end of the top face of the lifting support plate 4 to facilitate the support of various components. A bearing groove is formed on the right end face of the vertical plate of the lifting support plate 4, allowing the telescopic adjustment cylinder 6 to be installed via bearings. A through-hole is formed inside the bearing groove of the lifting support plate 4, allowing the telescopic cantilever rod 7 to pass through. A threaded hole is formed on the top wall of the through-hole of the lifting support plate 4, allowing the anti-rotation column 5 to be fixed via threads.

[0029] The lifting support plate 4 has a threaded hole with a vertically fixed anti-rotation post 5 installed inside to prevent the telescopic cantilever rod 7 from rotating. The lower part of the fixed anti-rotation post 5 has a threaded post for easy threaded installation. A limit ring plate is provided on the outer circumference of the top of the threaded post 5 for easy installation and limiting. A regular hexagonal prism is provided on the top end face of the threaded post 5 for easy rotation and disassembly using tools. A left-right telescopic adjustment cylinder 6 is installed inside the bearing groove of the lifting support plate 4 via a bearing, facilitating rotation of the telescopic adjustment cylinder 6. The inner circumference of the telescopic adjustment cylinder 6 has threads for easy threaded installation of the telescopic cantilever rod 7. An anti-slip groove is arranged in a ring array on the outer circumference of the telescopic adjustment cylinder 6 for easy rotation and anti-slip. A bearing ring groove is provided on the outer circumference of the left end of the telescopic adjustment cylinder 6 for easy bearing installation. The left-right telescopic cantilever rod 7 is installed inside the telescopic adjustment cylinder 6 via threads, facilitating left-right movement and telescopic adjustment of the telescopic cantilever rod 7 through thread engagement. The top of the outer circumference of the telescopic cantilever rod 7... The telescopic cantilever rod 7 has a left-right directional slot to facilitate the insertion of the anti-rotation pin 5 into the slot to prevent rotation. The telescopic cantilever rod 7 has threads on its outer circumference to facilitate the installation of the telescopic adjustment cylinder 6. The left end of the telescopic cantilever rod 7 has a through-hole for inserting an electronic dial indicator 9. The left side wall of the insertion hole of the telescopic cantilever rod 7 has a through-hole for threaded installation of the locking pin 8. The locking pin 8, positioned in the left-right direction, is installed inside the threaded hole of the telescopic cantilever rod 7 to secure the electronic dial indicator 9. The locking pin 8 has threads on its outer circumference for threaded installation. The left end face of the locking pin 8 has a regular hexagonal groove for easy rotation with a tool. The electronic dial indicator 9, positioned in the up-down direction, is inserted into the insertion hole of the telescopic cantilever rod 7 to facilitate contact with and movement to check the flatness of the steel surface. The outer circumference of the lower insertion rod of the electronic dial indicator 9 has a frosted surface to increase friction with the locking pin 8 and prevent loosening.

[0030] The specific usage and function of this embodiment are as follows:

[0031] In this utility model, when... Figure 1 As shown, when using the device body 1, the threaded post of the fixed bearing rod 2 is screwed into the threaded hole of the testing table, so that the fixed bearing rod 2 is installed on the testing table through the thread, and then the normal testing operation of the steel surface flatness can be performed; when... Figure 1As shown, when the lifting support plate 4 is adjusted, rotating the lifting adjustment cylinder 3 in the forward direction engages with the fixed support rod 2 via a thread, causing the lifting adjustment cylinder 3 to rise through the thread engagement. This, in turn, causes the lifting support plate 4 to rise synchronously via the bearing. Reversing the rotation of the lifting adjustment cylinder 3 engages with the fixed support rod 2 via a thread engagement, causing the lifting adjustment cylinder 3 to descend through the thread engagement. This, in turn, causes the lifting support plate 4 to descend synchronously via the bearing. This achieves the lifting adjustment of the lifting support plate 4. Simultaneously, the fixed support rod 2 and the lifting adjustment cylinder 3 are locked together by the self-locking property of the threads. When... Figure 1 As shown, when the telescopic cantilever rod 7 moves left and right for telescopic adjustment, rotating the telescopic adjustment cylinder 6 in the forward direction engages with the threaded connection of the telescopic cantilever rod 7, causing the telescopic cantilever rod 7 to extend to the left through the threaded engagement, thereby increasing the extension length of the telescopic cantilever rod 7. Rotating the telescopic adjustment cylinder 6 in the reverse direction engages with the threaded connection of the telescopic cantilever rod 7, causing the telescopic cantilever rod 7 to retract to the right through the threaded engagement, thereby shortening the extension length of the telescopic cantilever rod 7.

[0032] Example 2:

[0033] The difference from Embodiment 1 is that the regular hexagonal prism of the fixed anti-rotation post 5 can also be set as a regular heptagonal prism, so that the fixed anti-rotation post 5 can only be rotated by a special tool that cooperates with the regular heptagonal prism, thus preventing non-workers from rotating and disassembling the fixed anti-rotation post 5.

[0034] Example 3:

[0035] The difference from Embodiment 1 is that the regular hexagonal groove of the fixing locking pin 8 can also be set as a regular heptagonal groove, so that the fixing locking pin 8 can only be rotated by a special tool that cooperates with the regular heptagonal groove, thus preventing non-workers from rotating and disassembling the fixing locking pin 8.

Claims

1. A flatness detection device, characterized in that: The device includes a main body (1); the main body (1) is provided with a fixed bearing rod (2), the fixed bearing rod (2) has a threaded outer circumference, the fixed bearing rod (2) has a strip hole running through the left and right and up and down directions inside, the fixed bearing rod (2) has a regular hexagonal prism on the bottom end face, the fixed bearing rod (2) has a threaded column on the bottom end face of the regular hexagonal prism, the fixed bearing rod (2) has a lifting adjustment cylinder (3) installed on the outer circumference of the fixed bearing rod (2) by threads, the lifting adjustment cylinder (3) has threads on the inner circumference, and the lifting adjustment cylinder (3) has a ring array on the outer circumference. The lifting adjustment cylinder (3) is provided with anti-slip grooves and bearing ring grooves on the outer circumference of the top. The lifting support plate (4) is installed on the bearing ring groove of the lifting adjustment cylinder (3) through bearings. The left side of the lifting support plate (4) is provided with a bearing hole that runs vertically through the top. The right end of the top end face of the lifting support plate (4) is provided with a vertical plate in the front-back direction. The right end face of the vertical plate of the lifting support plate (4) is provided with a bearing ring groove. The bearing ring groove of the lifting support plate (4) is provided with a through hole that runs horizontally through the bottom. The top wall of the through hole of the lifting support plate (4) is provided with a threaded hole that runs vertically through the top.

2. The flatness detection device as described in claim 1, characterized in that: The threaded hole of the lifting bearing plate (4) is equipped with a fixed anti-rotation column (5), the lower part of the fixed anti-rotation column (5) is provided with a threaded column, the outer circumference of the top of the threaded column of the fixed anti-rotation column (5) is provided with a limit ring plate, and the top end face of the threaded column of the fixed anti-rotation column (5) is provided with a regular hexagonal prism.

3. The flatness detection device as described in claim 2, characterized in that: The lifting bearing plate (4) has a telescopic adjustment cylinder (6) installed inside the bearing groove through a bearing. The telescopic adjustment cylinder (6) has a threaded opening on its inner circumference.

4. The flatness detection device as described in claim 3, characterized in that: The telescopic adjusting cylinder (6) has an anti-slip groove arranged in an annular array on its outer circumference, and a bearing ring groove is arranged on the outer circumference of the left end of the telescopic adjusting cylinder (6).

5. The flatness detection device as described in claim 4, characterized in that: The telescopic adjusting cylinder (6) has a telescopic cantilever rod (7) installed inside by threads, and the top of the outer circumference of the telescopic cantilever rod (7) has a strip groove in the left and right direction.

6. The flatness detection device as described in claim 5, characterized in that: The telescopic cantilever rod (7) has a threaded outer circumference, and the telescopic cantilever rod (7) has an insertion hole that runs vertically through the left end. The telescopic cantilever rod (7) has a threaded hole that runs horizontally through the left side wall of the insertion hole.

7. The flatness detection device as described in claim 6, characterized in that: The telescopic cantilever rod (7) has a locking pin (8) installed inside the threaded hole. The locking pin (8) has a thread on its outer circumference. The left end face of the locking pin (8) has a regular hexagonal groove. An electronic dial indicator (9) is inserted into the insertion hole of the telescopic cantilever rod (7). The outer circumference surface of the lower insertion rod of the electronic dial indicator (9) is provided with a frosted surface.