Saw blade tool

The dual-blade saw tool addresses the need for versatile wood cutting by allowing two modes of operation with adjustable blades, improving efficiency and reducing costs.

DE202026101400U1Active Publication Date: 2026-05-21WUYUAN QIANGSHENG COMMERCIAL & TRADING CO LTD
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
WUYUAN QIANGSHENG COMMERCIAL & TRADING CO LTD
Filing Date
2026-03-12
Publication Date
2026-05-21

AI Technical Summary

Technical Problem

Existing saw blade tools lack versatility and efficiency in adapting to different cutting scenarios, requiring multiple tools for various wood cutting tasks.

Method used

A saw blade tool with a handle assembly and dual saw blade structures that can extend, retract, or rotate, allowing for two distinct operating modes with one blade exposed and the other concealed, featuring adjustable fastening and locking mechanisms for each blade.

Benefits of technology

Enables efficient cutting of diverse materials with a single tool, enhancing usability, safety, and portability while reducing production costs and time.

✦ Generated by Eureka AI based on patent content.

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Abstract

Saw blade tool, characterized in that it comprises a handle assembly and a saw blade assembly, wherein the saw blade assembly comprises a first saw blade structure and a second saw blade structure, and wherein the first saw blade structure and the second saw blade structure are each connected to an end of the handle assembly, and wherein the first saw blade structure and the second saw blade structure are configured to be able to extend, retract or rotate relative to the handle assembly.
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Description

TECHNICAL AREA

[0001] The present application relates to the technical field of mechanical equipment, in particular a saw blade tool. STATE OF THE ART

[0002] Wood cutting tools are widely used in carpentry, landscaping, and DIY projects. Depending on the specific requirements of the job, various methods exist for cutting wood. Therefore, there is a pressing need for a saw blade tool that allows for the exchange of suitable saw blades depending on the different operating scenarios. CONTENTS OF THE PRESENT USE SAMPLE

[0003] The present application aims to provide a saw blade tool to solve the aforementioned technical problems.

[0004] To solve the problems mentioned above, the present invention provides a saw blade tool comprising a handle assembly and a saw blade assembly, wherein the saw blade assembly comprises a first saw blade structure and a second saw blade structure, and wherein the first saw blade structure and the second saw blade structure are each connected to an end of the handle assembly, and wherein the first saw blade structure and the second saw blade structure are configured to be able to extend, retract or rotate relative to the handle assembly.

[0005] The present application is further configured such that the saw blade tool comprises a first operating mode and a second operating mode, wherein in the first operating mode the first saw blade structure is exposed from the handle assembly, while the second saw blade structure is concealed within the handle assembly, and wherein in the second operating mode the second saw blade structure is exposed from the handle assembly, while the first saw blade structure is concealed within the handle assembly.

[0006] The present application is further configured such that the first saw blade structure comprises a first saw blade element, a first fastening element and a first adjusting body, wherein the first saw blade element is provided with saw teeth, and wherein the first fastening element is adapted to an end of the first saw blade element, and wherein the first adjusting body is guided through a side wall of the handle assembly and connected to the first fastening element to adjust the position of the first saw blade element relative to the handle assembly prior to fastening.

[0007] The present application is further configured such that the second saw blade structure comprises a second saw blade element, a second fastening element and a second adjusting body, wherein the second saw blade element is provided with saw teeth, and wherein the second fastening element is adapted to an end of the second saw blade element, and wherein the second adjusting body is guided through a side wall of the handle assembly and connected to the second fastening element in order to adjust the position of the second saw blade element relative to the handle assembly prior to fastening.

[0008] The present application is further configured such that the handle assembly comprises a first wall surface and a second wall surface, wherein the first wall surface and the second wall surface are arranged in opposite directions, wherein the first wall surface is provided along its longitudinal direction with a first sliding groove in which the first adjusting body is positioned, and wherein the second wall surface is provided along its longitudinal direction with a second sliding groove in which the second adjusting body is positioned.

[0009] The present application is further configured such that the first adjusting body comprises a first locking element and a first adjusting element, wherein the first adjusting element is mounted above the first locking element, and wherein the first adjusting element is positioned outside the handle assembly, and wherein by rotating the first adjusting element in a first direction the position of the first saw blade element relative to the handle assembly is adjusted, while by rotating the first adjusting element in a second direction the first saw blade is attached to the handle assembly.

[0010] The present application is further configured such that the second adjusting body comprises a second locking element and a second adjusting element, wherein the second adjusting element is mounted above the second locking element, and wherein the second adjusting element is positioned outside the handle assembly, and wherein by rotating the second adjusting element in a first direction the position of the second saw blade element relative to the handle assembly is adjusted, while by rotating the second adjusting element in a second direction the second saw blade is attached to the handle assembly.

[0011] The present application is further configured such that the handle assembly comprises a housing and a handle element, wherein the housing is provided with a receiving cavity configured to accommodate at least part of the structure of the saw blade assembly, and wherein the handle element is mounted above the housing, and wherein the handle element faces away from a side of the saw blade assembly from which the housing is exposed.

[0012] The present application is still configured such that the handle element comprises a soft material.

[0013] The present application is further configured such that the handle assembly comprises a suspension cover and a spring wire, wherein the suspension cover is arranged at an end of the housing facing the handle element, and wherein the spring wire is connected to the suspension cover.

[0014] During practical use of the saw blade tool provided herein, both the first and second saw blade structures can be adjusted relative to the handle assembly. This ensures that when cutting a specific object, only one of the first and second saw blade structures is active, while the other remains concealed within the handle assembly. This allows for diverse application scenarios and functional requirements, increasing the usability of the saw blade tool. Furthermore, the ability to cut various materials is integrated into a single tool, offering ease of use and portability. This significantly reduces production costs and time, while simultaneously improving operational efficiency. BRIEF DESCRIPTION OF THE DRAWING Fig. Figure 1 shows a schematic diagram of the structure of a saw blade tool provided by an embodiment of the present application; Fig. Figure 2 shows a schematic exploded view of a saw blade tool provided by an embodiment of the present application; Fig. Figure 3 shows a schematic diagram of the partial structure of a saw blade tool provided by an embodiment of the present application. Reference symbol list 1 Handle assembly 101 cases 102 Handle element 103 Suspension cover 104 spring wire 2 Saw blade assembly 201 First saw blade element 202 First fastening element 203 First locking element 204 copper nuts 205 Locking button 206 Second saw blade element 207 Second fastening element 208 Second locking element DETAILED DESCRIPTION

[0015] In conjunction with the accompanying drawings and specific embodiments, a saw blade tool provided by the present application is explained in more detail below. The advantages and features of the present application will become clearer from the following description. It should be noted that the drawings are provided only in schematic form to facilitate and clarify the description of the embodiments of the present application. Identical or similar reference numerals in the drawings denote identical or similar components. Example 1

[0016] As in Fig. 1, Fig. 2 to Fig. As shown in Figure 3, the present invention provides a saw blade tool comprising a handle assembly 1 and a saw blade assembly 2, wherein the saw blade assembly 2 comprises a first saw blade structure and a second saw blade structure, and wherein the first saw blade structure and the second saw blade structure are each connected to an end of the handle assembly 1, and wherein the first saw blade structure and the second saw blade structure are configured to be able to extend, retract or rotate relative to the handle assembly 1.

[0017] For example, the saw blade tool can be used for gardening and household tasks. Its operating modes include manual and automatic (where the saw blade tool is mounted on a drive unit that then powers the saw blade tool). The handle assembly 1, the component subjected to external forces during the cutting process, acts as the central interface for human-machine interaction. It directly influences operational safety, efficiency, and comfort, with its function extending far beyond simply being a "tool handle" and incorporating integrated design principles of engineering mechanics, ergonomics, and scenario adaptation. The saw blade assembly 2, the cutting edge of the saw tool, serves as the direct interface between force and material. It is not only responsible for the cutting process but is also the crucial factor for the precision and efficiency of operation.The core function of the saw blade assembly 2 is the precise physical intervention, such as: efficient cutting of plant tissue; guiding the cutting paths and distributing the stresses (through the thickness of the saw blade (plate thickness) and the design of the stress balance to prevent cutting deviations and jamming; laser cutting heat dissipation channels dissipate frictional heat to avoid burning of the plant cambium by high temperatures) etc.

[0018] The first saw blade structure extends, retracts, or rotates relative to handle assembly 1, thereby exposing or concealing (stowing) the first saw blade structure within handle assembly 1. The second saw blade structure extends, retracts, or rotates relative to handle assembly 1, thereby exposing or concealing the second saw blade structure within handle assembly 1. During operation, only one of the first and second saw blade structures is exposed from handle assembly 1, while the other remains concealed within handle assembly 1. When not in use, both the first and second saw blade structures can be concealed or exposed within handle assembly 1.

[0019] When both the first and second saw blade structures are exposed on the outside of handle assembly 1, they are arranged in parallel. One of the first and second saw blade structures can be configured as a garden saw blade, primarily for cutting branches, while the other can be configured as a fine-tooth saw blade, primarily for cutting hardwood boards and bamboo-like materials. Thus, a single saw blade tool serves two functions, offering safe operation and convenient portability.

[0020] It should be noted that both the first and second saw blade designs can be made of high-quality metallic materials (such as high-carbon steel or chromium-vanadium alloy steel) or, alternatively, can feature diamond-coated or ceramic composite cutting edges. These materials are dimensionally stable, retain their sharpness, and ensure a long service life. The geometric shape of the teeth (e.g., triangular teeth, wolf teeth, hook-shaped teeth) is optimized for different materials. For example, the first saw blade design utilizes garden saw blades that allow for a smooth cut of living branches when pruning living plants, reducing phloem tearing and facilitating wound healing. When pruning fruit trees, the fine, dense teeth leave a clean cut, thereby reducing the risk of pathogen invasion.The second saw blade structure uses fine teeth with deep grooves for fast cutting, suitable for dry, hard wood with efficient chip ejection.

[0021] The present application is further configured such that the saw blade tool comprises a first operating mode and a second operating mode, wherein in the first operating mode the first saw blade structure is exposed from the handle assembly 1, while the second saw blade structure is concealed within the handle assembly 1, and wherein in the second operating mode the second saw blade structure is exposed from the handle assembly 1, while the first saw blade structure is concealed within the handle assembly 1.

[0022] For example, the first operating mode is for cutting branches, while the second covers tasks such as sawing wood or home renovations. When cutting branches in the garden, the first blade is extended and secured with the knob before work begins. For sawing wood or home renovations, the second blade is used. To do this, the first blade is retracted and secured before the second blade is extended and locked into place. The telescopic double-blade design facilitates blade changes when working with different materials during operation. It also allows for easy folding, blade replacement, safe operation, and convenient carrying.

[0023] As in Fig. 2 to Fig. As shown in Figure 3, the first saw blade structure comprises a first saw blade element 201, a first fastening element 202 and a first adjusting body, wherein the first saw blade element 201 is provided with saw teeth, and wherein the first fastening element 202 is adapted to an end of the first saw blade element 201, and wherein the first adjusting body is guided through a side wall of the handle assembly 1 and connected to the first fastening element 202 to adjust the position of the first saw blade element 201 relative to the handle assembly 1 prior to fastening.

[0024] For example, the first saw blade element 201 comprises a garden saw blade, and the first fastening element 202 comprises a fastening block, which may be an injection-molded part. To improve the stability of the first saw blade element 201, the first fastening element 202 is provided with a limiting cavity designed to accommodate part of the structure of the first saw blade element 201. Both the first fastening element 202 and the first saw blade element 201 are provided with mating holes into which the first adjusting body fits, thereby fastening the first saw blade element 201 to the handle assembly 1.

[0025] It is understood that the adjustment procedure of the first adjusting body may include a knob-like mechanism, whereby the tightness of the first saw blade element 201 relative to the handle assembly 1 is adjusted by rotating the first adjusting body. The adjustment procedure for the first saw blade structure may employ a telescopic mechanism in which the entire first saw blade structure moves relative to the handle assembly 1 during adjustment. This adjustment procedure is simple, allows for efficient use of the space within the handle assembly 1, and offers a high safety coefficient and comfortable carrying.

[0026] As in Fig. 2 to Fig. As shown in Figure 3, the second saw blade structure comprises a second saw blade element 206, a second fastening element 207 and a second adjusting body, wherein the second saw blade element 206 is provided with saw teeth, and wherein the second fastening element 207 is adapted to one end of the second saw blade element 206, and wherein the second adjusting body is guided through a side wall of the handle assembly 1 and connected to the second fastening element 207 to adjust the position of the second saw blade element 206 relative to the handle assembly 1 prior to fastening.

[0027] For example, the second saw blade element 206 comprises a garden saw blade, and the second mounting element 207 comprises a mounting block, which may be an injection-molded part. To improve the stability of the second saw blade element 206, the second mounting element 207 is provided with a limiting cavity designed to accommodate part of the structure of the second saw blade element 206. Both the second mounting element 207 and the second saw blade element 206 are provided with mating holes into which the second adjusting body fits, thereby attaching the second saw blade element 206 to the handle assembly 1.

[0028] It is understood that the adjustment procedure of the second adjusting body may include a knob-like mechanism, whereby the tightness of the second saw blade element 206 relative to the handle assembly 1 is adjusted by rotating the second adjusting body. The adjustment procedure for the second saw blade structure may employ a telescopic mechanism in which the entire second saw blade structure moves relative to the handle assembly 1 during adjustment. This adjustment procedure is simple, allows for efficient use of the space within the handle assembly 1, and offers a high safety coefficient and comfortable carrying.

[0029] As in Fig. 1, Fig. 2 to Fig. As shown in Figure 3, the handle assembly 1 comprises a first wall surface and a second wall surface, wherein the first wall surface and the second wall surface are arranged in opposite directions, wherein the first wall surface is provided along its length with a first sliding groove in which the first adjusting body is positioned, namely the first saw blade structure slides relative to the first sliding groove to enable the extension and retraction of the first saw blade structure; and wherein the second wall surface is provided along its length with a second sliding groove in which the second adjusting body is positioned, namely the second saw blade structure slides relative to the second sliding groove to enable the extension and retraction of the second saw blade structure.

[0030] The present application is further configured such that the first adjusting body comprises a first locking element 203 (e.g., an M6 screw) and a first adjusting element (e.g., a locking knob 205 and a copper nut 204, wherein the locking knob 205 is mounted above the copper nut 204, which is mounted above the first locking element 203 and screwed to the first locking element 203), wherein the first adjusting element is mounted above the first locking element 203, and wherein the first adjusting element is positioned outside the handle assembly 1, and wherein by rotating the first adjusting element in a first direction (e.g., rotating counterclockwise around the first locking element 203), the position of the first saw blade element 201 relative to the handle assembly 1 is adjusted, while by rotating the first adjusting element in a second direction (e.g.,Turning clockwise around the first locking element 203) the first saw blade is attached to the handle assembly 1.

[0031] The present application is further configured such that the second adjusting body comprises a second locking element 208 (e.g., an M6 screw) and a second adjusting element (e.g., a locking knob 205 and a copper nut 204, wherein the locking knob 205 is mounted above the copper nut 204, which is mounted above the first locking element 203 and screwed to the first locking element 203), wherein the second adjusting element is mounted above the second locking element 208, and wherein the second adjusting element is positioned outside the handle assembly 1, and wherein by rotating the second adjusting element in a first direction (e.g., rotating counterclockwise around the second locking element 208), the position of the second saw blade element 206 is adjusted relative to the handle assembly 1, while by rotating the second adjusting element in a second direction (e.g.,Turning clockwise around the second locking element 208) the second saw blade is attached to the handle assembly 1.

[0032] As in Fig. 1, Fig. 2 to Fig. As shown in Figure 3, the handle assembly 1 comprises a housing 101 and a handle element 102, wherein the housing 101 is provided with a receiving cavity configured to accommodate at least a part of the structure of the saw blade assembly 2, and wherein the handle element 102 is mounted above the housing 101, and wherein the handle element 102 faces away from a side of the saw blade assembly 2 from which the housing 101 is exposed.

[0033] For example, the housing 101 serves as the basis for safety and control. It facilitates power transmission and amplification; for instance, the length and curvature of the housing 101 efficiently convert the power of the user's arm and upper body into sawing torque. Particularly when dealing with thick branches, a housing 101 of sufficient length offers leverage advantages, thereby reducing local muscle fatigue. The curved handle (e.g., banana-shaped) adapts the pushing and pulling movements to the natural joint movements, thus preventing excessive twisting of the wrist.

[0034] The grip element 102 is mounted above the housing 101 and serves as a gripping area for the user, providing anti-slip properties and stability control. For example, the grip element 102 may have a rubber material, textured patterns, or finger grooves to ensure a secure grip even when wet or sweaty and to prevent accidental deflection of the saw blade assembly 2, which could damage trees or injure the operator. Alternatively, it may contain a vibration-absorbing layer (e.g., a gel pad) to reduce strain on the arms during prolonged use.

[0035] It should be noted that handle assembly 1 can be equipped with a multi-angle adjustment function to adapt to complex working environments. For example, a rotating handle (multi-position adjustment lever) allows for flexible adjustment of the handle angle according to the cutting height and the orientation of the branches, thus avoiding the need to climb or bend over. This feature is particularly useful for cutting at great heights or clearing shrubs at ground level. Naturally, handle assembly 1 can also be equipped with additional accessories. For example, an extension interface allows the attachment of a telescopic pole (for working in the tree canopy), counterweight blocks (to balance the center of gravity), or even intelligent sensors (such as kickback warning devices), thereby improving the adaptability of the saw blade tool.

[0036] The present application is further configured such that the handle element 102 includes soft materials (rubber, gel, etc.) and can of course be equipped with optional seasonal adjustments such as frost protection in winter (soft foam layer) or heat insulation in summer (thermal insulation structure), reflecting considerations for outdoor workers.

[0037] The present application is further configured such that the handle assembly 1 comprises a suspension cover 103 and a spring wire 104, wherein the suspension cover 103 is arranged at an end of the housing 101 facing the handle element 102, and wherein the spring wire 104 is connected to the suspension cover 103 (via an elastic connection that allows the spring wire 104 to return to its initial position relative to the suspension cover 103 when the acting force is withdrawn). That is, the interaction of the suspension cover 103 and the spring wire 104 allows the saw blade tool to be securely suspended, thereby preventing safety accidents.

[0038] During practical use of the saw blade tool provided herein, both the first and second saw blade structures can be adjusted relative to the handle assembly 1. This ensures that when cutting a specific object, only one of the first and second saw blade structures is active, while the other remains concealed within the handle assembly 1. This enables diverse application scenarios and functional requirements, increasing the usability of the saw blade tool. Furthermore, the ability to cut various materials is integrated into a single tool, offering ease of use and portability. This significantly reduces production costs and time, while simultaneously improving operational efficiency.

[0039] The foregoing description merely illustrates preferred embodiments of the present application and does not constitute a limitation of its scope. Any modifications or changes made by a person skilled in the art in the field of the present application on the basis of the present disclosure shall be within the scope of protection of the claims.

Claims

Saw blade tool characterized in that it comprises a handle assembly and a saw blade assembly, wherein the saw blade assembly comprises a first saw blade structure and a second saw blade structure, and wherein the first saw blade structure and the second saw blade structure are each connected to an end of the handle assembly, and wherein the first saw blade structure and the second saw blade structure are configured to be able to extend, retract or rotate relative to the handle assembly. Saw blade tool according to claim 1, characterized in that the saw blade tool comprises a first operating mode and a second operating mode, wherein in the first operating mode the first saw blade structure is exposed from the handle assembly, while the second saw blade structure is concealed within the handle assembly, and wherein in the second operating mode the second saw blade structure is exposed from the handle assembly, while the first saw blade structure is concealed within the handle assembly. Saw blade tool according to claim 1 or 2, characterized in that the first saw blade structure comprises a first saw blade element, a first fastening element and a first adjusting body, wherein the first saw blade element is provided with saw teeth, and wherein the first fastening element is adapted to an end of the first saw blade element, and wherein the first adjusting body is guided through a side wall of the handle assembly and connected to the first fastening element to adjust the position of the first saw blade element relative to the handle assembly prior to fastening. Saw blade tool according to claim 3, characterized in that the second saw blade structure comprises a second saw blade element, a second fastening element and a second adjusting body, wherein the second saw blade element is provided with saw teeth, and wherein the second fastening element is adapted to an end of the second saw blade element, and wherein the second adjusting body is guided through a side wall of the handle assembly and connected to the second fastening element to adjust the position of the second saw blade element relative to the handle assembly prior to fastening. Saw blade tool according to claim 4, characterized in that the handle assembly comprises a first wall surface and a second wall surface, wherein the first wall surface and the second wall surface are arranged in opposite directions, wherein the first wall surface is provided along its longitudinal direction with a first sliding groove in which the first adjusting body is positioned, and wherein the second wall surface is provided along its longitudinal direction with a second sliding groove in which the second adjusting body is positioned. Saw blade tool according to claim 3, characterized in that the first adjusting body comprises a first locking element and a first adjusting element, wherein the first adjusting element is mounted above the first locking element, and wherein the first adjusting element is positioned outside the handle assembly, and wherein by rotating the first adjusting element in a first direction the position of the first saw blade element relative to the handle assembly is adjusted, while by rotating the first adjusting element in a second direction the first saw blade is attached to the handle assembly. Saw blade tool according to claim 4, characterized in that the second adjusting body comprises a second locking element and a second adjusting element, wherein the second adjusting element is mounted above the second locking element, and wherein the second adjusting element is positioned outside the handle assembly, and wherein by rotating the second adjusting element in a first direction the position of the second saw blade element relative to the handle assembly is adjusted, while by rotating the second adjusting element in a second direction the second saw blade is attached to the handle assembly. Saw blade tool according to claim 1, characterized in that the handle assembly comprises a housing and a handle element, wherein the housing is provided with a receiving cavity configured to accommodate at least a part of the structure of the saw blade assembly, and wherein the handle element is mounted above the housing, and wherein the handle element faces away from a side of the saw blade assembly from which the housing is exposed. Saw blade tool according to claim 8, characterized in that the handle element comprises a soft material. Saw blade tool according to claim 8, characterized in that the handle assembly comprises a suspension cover and a spring wire, wherein the suspension cover is arranged at an end of the housing facing the handle element, and wherein the spring wire is connected to the suspension cover.