Bolt with scales
By setting scale lines and numerical markings on the bolts, the error problems in the control of tightening degree and installation position of existing bolts are solved, realizing high-precision installation operation, simplifying the process, reducing costs and improving equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-04
- Publication Date
- 2026-04-10
AI Technical Summary
The existing bolts lack intuitive display for controlling the tightness and installation position, resulting in large errors, complicated operation and high cost. They are also difficult to measure accurately in confined spaces, affecting equipment performance and safety.
The bolt shank is marked with scale lines and numbers. The combination of scale lines and numbers visually displays the tightness and installation position, simplifying the operation process and reducing reliance on additional measuring tools.
It improves the accuracy of bolt installation, reduces operational complexity and cost, ensures the normal operation and safety of equipment, shortens the construction cycle, and reduces quality problems and rework.
Smart Images

Figure CN224107535U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model is applied to the technical field of connecting accessories, and particularly relates to a bolt with a scale. BACKGROUND
[0002] Bolts are one of common fasteners, and are widely used in mechanical assembly, building construction and equipment maintenance. However, the tightening degree or installation position of the bolt often needs to be accurately controlled in actual operation. At present, most existing bolts do not have the function of intuitively displaying the tightening degree or installation position, and workers often have to rely on experience or additional measuring tools such as torque wrenches and vernier calipers to determine whether the tightening degree and installation position of the bolt are appropriate.
[0003] In the prior art, bolts generally do not have scales. In the installation process of high-precision instruments, the installation hole is first drilled, the height of the installation hole is measured, the height of the fastener is measured, and a suitable fastener is found for installation. This process is relatively cumbersome, and the installation hole and the fastener need to be measured separately to find a suitable fastener. The use of additional measuring tools not only increases the complexity of the operation and the cost of the work, but also makes it difficult to use measuring tools in some small spaces or inconvenient environments, making it difficult to accurately measure. If only experience is relied on, errors are likely to occur, resulting in over-tightening or under-tightening of the bolt, inaccurate installation position, and other problems. Over-tightening of the bolt may cause deformation or even damage to the connected parts, affecting the overall performance and service life of the equipment or structure; under-tightening may result in insecure connection and safety hazards. Inaccurate installation position may also affect the normal operation of the equipment and the stability of the structure.
[0004] A bolt with a scale for high-precision instruments is disclosed in Chinese Patent No. CN110159631A. By setting a scale on the screw rod, the size of the fastener can be clearly seen. After measuring the height of the installation hole, a suitable fastener can be quickly found for installation. The fastener can be positioned by the positioning groove. However, the scale is set in the groove, and since the scale has a small interval, it is difficult for workers to view the scale through the narrow groove, and the observed value may differ from the actual value.
[0005] Therefore, it is necessary to provide a bolt with a scale, which is convenient to adjust, firmly connected, and can clearly see the size of the fastener, which is beneficial to improve the positioning accuracy and further improve the stability of the installation structure of the instrument. UTILITY MODEL CONTENTS
[0006] The utility model wants to solve the technical problem of overcoming prior art's insufficient, provide a bolt with scale, convenient to adjust, connection is firm, can clearly see the size of fastener, is favorable to improve the accurate degree of positioning, further improve the stability of instrument's mounting structure.
[0007] The utility model employs technical scheme: the utility model discloses screw rod and nut, be equipped with outer thread on the screw rod, the vertical surface of screw rod is equipped with plane structure, the plane structure is provided with scale line, one side of scale line is provided with digital identification, scale line is evenly distributed along the axial direction of screw rod, the internal thread of nut is screwed with outer thread thread cooperation.
[0008] From the above scheme, the present application can intuitively and accurately display the tightening degree or installation position of the bolt through the cooperation of the scale mark and the indicating component, avoiding the errors caused by experience-based operation, thereby improving the accuracy of assembly, construction and maintenance. For example, in mechanical assembly, the bolt installation accuracy can be controlled within a smaller error range, ensuring the normal operation and performance stability of the equipment. Without the need for additional measuring tools, the operator can directly read the relevant information through the scale mark on the bolt, simplifying the operation process, saving measurement time and improving work efficiency. In the context of large-scale use of bolts in construction and other fields, the construction cycle can be significantly shortened. The dependence on additional measuring tools such as torque wrenches and vernier calipers is reduced, and the equipment procurement and maintenance costs are lowered. At the same time, due to the improved accuracy of assembly and construction, the quality problems and rework phenomena caused by improper bolt installation are reduced, further reducing production costs. The bolt with scale can be applied to various occasions where the tightening degree or installation position of the bolt needs to be accurately controlled, and can play an important role in mechanical assembly, construction, equipment maintenance and other fields, with wide application prospects.
[0009] One preferred scheme is that the nut includes a positioning nut, a starting nut, and an adjusting nut, the positioning nut is clamped and matched with the external first clamping piece through the starting nut, one end of the positioning nut is tightly attached to the external first clamping piece, the other end of the external first clamping piece is tightly attached to the starting nut, the tightly attached surface of the starting nut is aligned with the 0 digital identification, and the external first clamping piece is connected and fixed with the external second clamping piece through the adjusting nut.
[0010] One preferred scheme is that the cross section of the screw rod is semicircular.
[0011] One preferred scheme is that the scale lines are evenly distributed along the axial direction of the screw rod, the digital identifications correspond to different screw rod rotation depths or tightening degrees, a scale line is engraved on the screw rod every 1mm, and the corresponding digital identification is marked at the corresponding position.
[0012] One preferred solution is that the nut is a hexagonal nut.
[0013] One preferred solution is that the screw rod adopts a double identification system composed of physical grooves and digital codes, which is more convenient for actual operation on site. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 is the perspective view of the utility model;
[0015] Fig. 2 is the perspective view of the screw rod;
[0016] Fig. 3 is the perspective view of the utility model in the connected state. DETAILED DESCRIPTION
[0017] As shown in the figure, Figs. 1-3 in the embodiment, the utility model includes a screw rod 1 and a nut, the screw rod 1 is provided with external threads, the vertical surface of the screw rod 1 is provided with a flat structure 2, the flat structure 2 is provided with a scale line 3, one side of the scale line 3 is provided with a digital identification 4, the scale line 3 is evenly distributed along the axial direction of the screw rod 1, and the internal threads of the nut are threadedly matched with the external threads.
[0018] the scale line 3 is arranged on the flat structure 2, which facilitates the operator to clearly read the size of the fastener, the screw rod 1 is provided with external threads, the screw rod 1 is used for being matched with the internal threads of the nut to realize connection fastening, the scale line 3 and the digital identification 4 are arranged on the outer surface of the screw rod 1, the scale line 3 is evenly distributed along the axial direction of the screw rod 1, and the digital identification 4 corresponds to different screw rod 1 rotation depth or tightening degree. The setting mode of the scale identification can adopt a laser engraving process, so as to ensure that the scale is clear, wear-resistant, and not easy to be abraded or corroded. For example, a scale line is engraved every 1mm on the screw rod, and the corresponding numerical value is marked at the corresponding position, which is convenient for the operator to read.
[0019] As shown in the figure, Figs. 1-3 in the embodiment, the nut includes a positioning nut 5, a starting nut 6 and an adjusting nut 7, the positioning nut 5 is clamped and matched with the external first clamping piece 8 through the starting nut 6, one end of the positioning nut 5 is tightly attached to the external first clamping piece 8, the other end of the starting nut 6 is tightly attached to the external first clamping piece 8, the tightly attached surface of the starting nut 6 is aligned with the 0 digital identification, and the external first clamping piece 8 is connected and fixed with the external second clamping piece 9 through the adjusting nut 7.
[0020] The screw rod 1 passes through the outer first clamp 8 and the outer second clamp 9, the positioning nut 5 and the starting nut 6 are used for clamping positioning of the outer first clamp 8, and the adjusting nut 7 is screwed with the end of the screw rod 1, and the adjusting nut 7 is used for connecting and fixing the outer first clamp 8 and the outer second clamp 9. When the adjusting nut 7 is screwed, the adjusting nut 7 corresponds to the digital identification 4 of the screw rod 1, that is, the spacing size of the outer first clamp 8 and the outer second clamp 9.
[0021] The scale line 3 is uniformly distributed along the axial direction of the screw rod 1, and the digital identification 4 corresponds to different screw rod 1 rotation depths or tightening degrees. It effectively avoids problems such as over-tightening or insufficient tightening of the bolt, inaccurate installation position, prevents over-tightening of the bolt from deforming or even damaging the connected parts, and affects the overall performance and service life of the equipment or structure; avoid loose connection caused by insufficient tightening, and further eliminate safety hazards.
[0022] As shown in the figure, Figs. 1-3 In this embodiment, the cross section of the screw rod 1 is semicircular.
[0023] As shown in the figure, Figs. 1-3 In this embodiment, the scale line 3 is uniformly distributed along the axial direction of the screw rod 1, and the digital identification 4 corresponds to different screw rod 1 rotation depths or tightening degrees. Every 1mm on the screw rod 1 is engraved with a scale line 3, and the corresponding digital identification 4 is marked at the corresponding position.
[0024] As shown in the figure, Figs. 1-3 In this embodiment, the nut is a hexagonal nut.
[0025] In this embodiment, the screw rod 1 adopts a double identification system composed of physical grooves and digital codes, which is more convenient for actual operation on site.
[0026] In this embodiment, in order to further improve the accuracy and convenience of measurement, a transparent protective cover is arranged at the head of the screw rod 1, the inside of the protective cover is filled with transparent sealing glue, so as to protect the scale identification, prevent dust, oil stains and other pollution from affecting the reading. At the same time, a reference line corresponding to the indicating part is arranged on the protective cover, which further improves the accuracy of reading.
[0027] In the embodiment, the scale mark can also be diversified according to different use requirements. For example, for the occasion requiring accurate control of torque, the digital mark can be marked corresponding to the torque value, and the operator can roughly understand the torque size borne by the current bolt by reading the digital mark. For some special application scenarios, color marks can also be set on the scale mark, and when the bolt reaches the preset tightening degree or installation position, the corresponding scale area displays a specific color, playing a warning role.
[0028] In the embodiment, the external first clamp 8 and the external second clamp 9 are provided with driving assemblies, the external first clamp 8 and the external second clamp 9 constitute a walking module, the walking module drags the coating module, the walking module drives the coating module to climb along the steel wire rope, the coating module coats a certain thickness of surface grease on the surface of the steel wire rope, the steel wire rope is lubricated and maintained, the screw rod 1 is threadedly matched with the nut, the digital mark 4 corresponds to different screw rod 1 rotation depths or tightening degrees, and the walking module is guaranteed to stably clamp the steel wire rope, so that the coating module is provided with continuous and stable power.
[0029] Although the embodiments of the utility model are described in actual schemes, but do not constitute the limitation to the meaning of the utility model, for the person skilled in the art, according to the modification of the embodiment of the present specification and the combination with other schemes, it is obvious.
Claims
1. A bolt with a scale, characterized by: It includes screw rod (1) and nut, the screw rod (1) is equipped with external thread, the vertical surface of the screw rod (1) is equipped with plane structure (2), the plane structure (2) is provided with scale line (3), one side of the scale line (3) is provided with digital identification (4), the digital identification (4) is physical recess and can avoid damaged blur, the scale line (3) is uniformly distributed along the axial direction of the screw rod (1), the internal thread of the nut is screwed with the external thread;The nut includes positioning nut (5), starting nut (6), adjusting nut (7), the positioning nut (5) is clamped with the first external clamp (8) through the starting nut (6), one end of the positioning nut (5) is close to the first external clamp (8), the other end of the starting nut (6) is close to the first external clamp (8), the close surface of the starting nut (6) is aligned with 0 digital identification, the first external clamp (8) is connected and fixed with the second external clamp (9) through the adjusting nut (7).
2. The graduated bolt of claim 1, wherein: The cross section of the screw rod (1) is semicircular.
3. The graduated bolt of claim 1, wherein: The scale line (3) is uniformly distributed along the axial direction of the screw rod (1), the digital identification (4) corresponds to different screw rod (1) rotation depth or tightening degree, every 1mm interval on the screw rod (1) is engraved a scale line (3), and the corresponding digital identification (4) is marked at the corresponding position.
4. The graduated bolt of claim 1, wherein: The nut is hexagonal nut.
5. The graduated bolt of claim 1, wherein: The screw rod (1) adopts physical recess and digital coding to form double identification system, which is more convenient for on-site actual operation.
Citation Information
Patent Citations
Fastener used for high precision instrument and having scales
CN110159631A