Zinc alloy ruler handle structure for hardware tool measuring tool

By adopting zinc alloy material and innovative structural design, combined with screw adjustment mechanism and high-precision level, the problems of bulkiness and low adjustment accuracy of traditional hardware measuring tools are solved, realizing lightweight and multifunctional high-efficiency and accurate measurement.

CN223976567UActive Publication Date: 2026-03-06HANGZHOU LINMING HARDWARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Traditional hardware tools are bulky, have low adjustment precision, and limited functionality, making it difficult to meet the high-efficiency and precision requirements of modern industry.

Method used

The short ruler base is made of zinc alloy, combined with a screw adjustment mechanism and a high-precision level. It features trapezoidal and arched hollow slots and an integrated magnetic stylus, achieving lightweight, multi-functional adjustment and stable measurement.

Benefits of technology

It significantly improves the portability, measurement accuracy, and ease of operation of hardware measuring tools, is suitable for high-intensity environments, reduces weight, and enhances measurement reliability and operational stability.

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Abstract

The utility model relates to the technical field of hardware measuring tools, in particular to a zinc alloy ruler handle structure for a hardware measuring tool. Which comprises a short ruler base and is characterized in that the short ruler base is made of zinc alloy, an assembling groove is formed in one side of the vertical end of the short ruler base, a long ruler is arranged in the assembling groove, a screw adjusting mechanism associated with the long ruler is arranged on one side of the short ruler base, a trapezoidal hollow groove and an arched hollow groove are formed in the short ruler base, and the long ruler is arranged in the trapezoidal hollow groove. According to the zinc alloy ruler handle structure, through material optimization and function integration, the portability, the measuring precision and the operation convenience of a hardware tool measuring tool are remarkably improved, specifically, the zinc alloy material is adopted, the structural stability is guaranteed, the weight is greatly reduced at the same time, the structure is simple, and the cost is low. The tool is easier to carry and use for a long time; fine adjustment and firm fixation of the long ruler are achieved through a screw adjusting mechanism (a threaded rod and a locking nut), and sliding errors of a traditional buckle type structure are avoided.
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Description

Technical Field

[0001] This utility model relates to the field of hardware measuring tools technology, and in particular to a zinc alloy ruler handle structure for hardware measuring tools. Background Technology

[0002] In fields such as hardware processing and machinery manufacturing, the portability, measurement accuracy, and ease of operation of measuring tools directly affect work efficiency. Traditional ruler handles are mostly made of steel or aluminum alloy, which, while strong, are heavy and prone to fatigue after prolonged use. Furthermore, adjustment mechanisms often rely on simple clips or bolts for fixing, which are prone to loosening or wear, leading to measurement errors. In addition, existing tools have limited functionality; leveling calibration and marking assistance require additional accessories, increasing operational complexity.

[0003] Chinese patent discloses a measuring square (publication number: CN 222505193 U) including an aluminum handle. One end of the aluminum handle is vertically connected to a square. The front of the square has distributed beveled squares that fit together. The other end of the aluminum handle has a sliding groove, and a support block is slidably limited inside the groove. The upper and lower sides of the aluminum handle are fastened with protective plates. However, this measuring square is bulky, has low adjustment accuracy, and has limited functions, making it difficult to meet the needs of efficient and precise modern industry. Therefore, there is a need for a zinc alloy handle structure for hardware measuring tools. Utility Model Content

[0004] The purpose of this invention is to solve the problems of traditional measuring squares being bulky, having low adjustment accuracy, and having limited functions, which make it difficult to meet the needs of efficient and precise modern industry. Therefore, this invention proposes a zinc alloy ruler handle structure for hardware measuring tools.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A zinc alloy ruler handle structure for hardware measuring tools, comprising a short ruler base, characterized in that: the short ruler base is made of zinc alloy; an assembly groove is provided on one side of the vertical end of the short ruler base; a long ruler is placed in the assembly groove; a screw adjustment mechanism associated with the long ruler is provided on one side of the short ruler base; a trapezoidal hollow groove and an arched hollow groove are provided on the short ruler base; the trapezoidal hollow groove is associated with the screw adjustment mechanism. Lightweight and high-strength combination: The zinc alloy material is lighter than traditional steel while ensuring structural strength, making it easy to carry and use; Multifunctional adjustment: The screw adjustment mechanism can precisely control the extension or fixation of the long ruler, improving measurement accuracy; Optimized structural design: The trapezoidal hollow groove reduces material usage while enhancing the stability of the screw adjustment; The arched hollow groove provides installation space for the spirit level, ensuring horizontal calibration during measurement.

[0006] Preferably, the screw adjustment mechanism includes a threaded rod with a locking nut on it. The threaded rod and locking nut work together to quickly adjust and lock the position of the ruler, preventing slippage errors during measurement. The threaded locking method is more secure than traditional snap-fit ​​mechanisms, preventing loosening due to external forces and improving measurement reliability.

[0007] Preferably, a high-precision bubble level is provided on the arched hollow groove, and the axis of the high-precision bubble level is perpendicular to the reference tangent of the long ruler side. The vertical installation of the bubble level ensures that the ruler body remains horizontal during measurement, avoiding measurement errors caused by tilting; the bubble level is directly embedded in the arched groove, reducing additional installation space and making the tool more compact.

[0008] Preferably, the base of the short ruler has a groove on one side of its bottom, and a magnetic built-in stylus is installed in the groove. The magnetic built-in stylus is made of stainless steel and has a titanium-plated surface. The magnetic stylus can be used for marking or temporarily fixing the ruler, improving ease of operation; the titanium plating enhances the durability of the stylus and prevents wear or corrosion caused by long-term use.

[0009] Preferably, the short ruler base is provided with a wavy weight-reducing groove, and the number of the wavy weight-reducing grooves is three, stacked sequentially from top to bottom. The wavy groove design further reduces the overall weight and improves portability while maintaining structural strength; the wavy groove can increase the friction of the finger contact surface, prevent slippage, and improve operational stability.

[0010] Preferably, the base of the short ruler is made of zinc alloy. After being die-cast, the base has a tensile strength ≥380MPa, a yield strength ≥280MPa, and a hardness of 120-135HV. The zinc alloy die-casting process ensures that the ruler handle is not easily deformed or broken, making it suitable for high-intensity working environments. Compared with pure steel or aluminum alloy, zinc alloy has lower processing costs while ensuring strength, making it suitable for mass production.

[0011] The advantages of this utility model are:

[0012] The zinc alloy ruler handle structure of this application significantly improves the portability, measurement accuracy, and ease of operation of hardware measuring tools through material optimization, structural innovation, and functional integration. Specifically: the use of zinc alloy material ensures structural stability while greatly reducing weight, making the tool easier to carry and use for extended periods; the screw adjustment mechanism (threaded rod + locking nut) enables fine-tuning and secure fixing of the ruler, avoiding the slippage error of traditional snap-fit ​​structures; the arched hollow groove with embedded high-precision bubble level ensures the ruler remains level during measurement, reducing human error; the magnetic titanium-plated stylus in the bottom groove allows for quick marking or temporary fixation, improving work efficiency; the superimposed design of trapezoidal and wavy grooves maintains strength while reducing overall weight and enhancing grip and anti-slip properties; the zinc alloy die-casting process and high-hardness titanium-plated treatment of key components (such as the stylus) extend the tool's lifespan, making it suitable for high-frequency, high-intensity industrial environments. This integrated multi-functional design allows users to complete accurate measurements, level calibration, and auxiliary marking operations without additional tools, greatly improving work efficiency and user experience. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This utility model Figure 1 Enlarged view of I in the middle.

[0016] Figure 3 This is a schematic diagram of the main structure of this utility model.

[0017] In the diagram: 1. Long ruler; 2. Short ruler base; 3. Threaded rod; 4. Locking nut; 5. Trapezoidal hollow groove; 6. Arched hollow groove; 7. High-precision level bubble; 8. Wave-shaped weight-reducing groove; 9. Magnetic built-in drawing needle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0019] Example

[0020] Please see Figure 1-3 As shown, a zinc alloy ruler handle structure for hardware measuring tools includes a short ruler base 2. The short ruler base 2 is made of zinc alloy. A mounting groove is provided on one side of the vertical end of the short ruler base 2, and a long ruler 1 is placed within the mounting groove. A screw adjustment mechanism associated with the long ruler 1 is provided on one side of the short ruler base 2. A trapezoidal hollow groove 5 and an arched hollow groove 6 are provided on the short ruler base 2, and the trapezoidal hollow groove 5 is associated with the screw adjustment mechanism. Lightweight and high-strength combination: The zinc alloy material is lighter than traditional steel while ensuring structural strength, making it easy to carry and use; Multifunctional adjustment: The screw adjustment mechanism can precisely control the extension or fixation of the long ruler 1, improving measurement accuracy; Optimized structural design: The trapezoidal hollow groove 5 reduces material usage while enhancing the stability of the screw adjustment; The arched hollow groove 6 provides installation space for the spirit level, ensuring horizontal calibration during measurement.

[0021] In this embodiment, the screw adjustment mechanism includes a threaded rod 3, on which a locking nut 4 is provided. The threaded rod 3 and the locking nut 4 cooperate to quickly adjust and lock the position of the ruler 1, avoiding slippage errors during the measurement process; the threaded locking method is more secure than the traditional snap-fit ​​method, preventing loosening caused by external force and improving measurement reliability.

[0022] In this embodiment, a high-precision bubble level 7 is provided on the arched hollow groove 6, and the axis of the high-precision bubble level 7 is perpendicular to the reference tangent of the side of the long ruler 1. The vertical installation of the bubble level ensures that the ruler body remains horizontal during measurement, avoiding measurement errors caused by tilting; the bubble level is directly embedded in the arched groove, reducing additional installation space and making the tool more compact.

[0023] In this embodiment, a groove is provided on one side of the bottom of the short ruler base 2, and a magnetic built-in needle 9 is provided in the groove. The magnetic built-in needle 9 is made of stainless steel and has a titanium-plated surface. The magnetic needle can be used for marking or temporarily fixing the ruler, improving the ease of operation; the titanium plating enhances the durability of the needle and prevents wear or corrosion caused by long-term use.

[0024] In this embodiment, the short ruler base 2 is provided with a wavy weight-reducing groove 8, and the number of the wavy weight-reducing grooves is 3, which are stacked sequentially from top to bottom. The wavy groove design further reduces the overall weight and improves portability while maintaining structural strength; the wavy groove can increase the friction of the finger contact surface, prevent slippage, and improve operational stability.

[0025] In this embodiment, the short ruler base 2 is made of zinc alloy. After being die-cast, the short ruler base 2 has a tensile strength ≥380MPa, a yield strength ≥280MPa, and a hardness of 120-135HV. The zinc alloy die-casting process ensures that the ruler handle is not easily deformed or broken, making it suitable for high-intensity working environments. Compared with pure steel or aluminum alloy, zinc alloy has lower processing costs while ensuring strength, making it suitable for mass production.

[0026] The implementation principle of this embodiment is as follows:

[0027] Assemble and adjust the long ruler 1

[0028] During use, the user first inserts the long ruler 1 into the assembly slot of the short ruler base 2 for quick assembly. When the measuring length needs to be adjusted, simply rotate the locking nut 4 of the screw adjustment mechanism. The axial movement of the threaded rod 3 will then cause the long ruler 1 to precisely extend or retract to the desired position. After adjustment, tightening the locking nut 4 will securely fix the long ruler 1, effectively preventing accidental slippage during measurement.

[0029] Horizontal calibration function

[0030] When performing measurements requiring a horizontal reference, users can determine if the ruler is level simply by observing the position of the bubble in the level bubble. If the ruler is found to be tilted, the bubble will be noticeably off to one side. In this case, the user can adjust the angle until the bubble is centered, indicating that a precise level has been achieved. The installation position of the level bubble is carefully designed so that its axis remains strictly perpendicular to the reference edge of the ruler 1.

[0031] Auxiliary line drawing and positioning

[0032] When it's necessary to draw lines on a workpiece or temporarily fix a ruler, the user can easily pull out the drawing needle. Its magnetic design allows it to firmly adhere to the surface of a metal workpiece, enabling one-handed operation and freeing up the other hand for other tasks. The surface of the drawing needle undergoes a special titanium plating treatment, effectively preventing rust and wear.

[0033] Ergonomic optimization design

[0034] To address the need for comfort during extended use, the short ruler base 2 features three wave-shaped weight-reducing grooves 8. This innovative structure significantly reduces the tool's weight while maintaining overall strength, effectively alleviating hand fatigue. Simultaneously, the unique texture of the wave-shaped grooves increases surface friction at the grip area, ensuring a stable hold even in wet or oily environments, preventing slippage, and enhancing operational safety and comfort.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A zinc alloy blade structure for a hardware tool comprising a short blade base (2), characterized in that The short base (2) is made of zinc alloy, one side of the vertical end of the short base (2) is provided with an assembly groove, the assembly groove is provided with a long ruler (1), one side of the short base (2) is provided with a screw adjusting mechanism associated with the long ruler (1), the short base (2) is provided with a trapezoidal hollow groove (5) and an arcuate hollow groove (6), the trapezoidal hollow groove (5) is associated with the screw adjusting mechanism.

2. A zinc alloy shank structure for a hardware tool according to claim 1, characterized in that: The screw adjusting mechanism comprises a threaded rod (3), and the threaded rod (3) is provided with a locking nut (4).

3. A zinc alloy shank structure for a hardware tool according to claim 1, characterized in that: The arcuate hollow groove (6) is provided with a high-precision level bubble (7), and the tube axis of the high-precision level bubble (7) is perpendicular to the reference tangent of the side of the long ruler (1).

4. A zinc alloy shank structure for a hardware tool according to claim 1, characterized in that: One side of the bottom of the short base (2) is provided with a sliding groove, the sliding groove is provided with a magnetic built-in drawing needle (9), the magnetic built-in drawing needle (9) is made of stainless steel and is titanium-plated on the surface.

5. A zinc alloy shank structure for a hardware tool according to claim 1, characterized in that: The short base (2) is provided with a wave-shaped lightening groove (8), and the wave-shaped lightening groove (8) is provided with three lightening grooves stacked from top to bottom.

6. A zinc alloy shank structure for a hardware tool according to claim 1, characterized in that: The short base (2) is made of zinc alloy, the tensile strength of the short base (2) after pressure casting is greater than or equal to 380 MPa, the yield strength is greater than or equal to 280 MPa, and the hardness is 120-135 HV.

Citation Information

Patent Citations

  • Measuring angle square

    CN222505193U