A length-adjustable cutter
By designing adjustable stirring blades, using a motor-driven rotating rod and connecting rod to raise and lower the adjusting rod, and combining guide sleeves and ball bearings to improve sliding efficiency, the adaptability problem caused by the single length adjustment of traditional stirring blades is solved, realizing real-time height adjustment and stable crushing during the stirring process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN LECO TOOL CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional mixing blades have a single method for length adjustment, which can only be adjusted before use. This reduces adaptability, makes it impossible to reach the bottom of large containers, and leads to material stratification or uneven mixing, increasing labor costs and time consumption.
An adjustable-length cutter is designed, comprising a mounting plate, a support plate, and an adjustment mechanism. A first motor drives a rotating rod to periodically raise and lower a connecting rod and an adjusting rod. The height of the cutter head assembly is adjusted by combining a guide sleeve and ball bearings. Stability is improved by a limiting plate and a limiting rod. A second motor drives a drive gear and a driven gear to crush the blade.
It enables real-time height adjustment of the mixing blades during use, improving adaptability, avoiding material stratification and uneven mixing, reducing the need for downtime for adjustments, and lowering labor and time costs.
Smart Images

Figure CN224443208U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting tools, specifically an adjustable-length cutting tool. Background Technology
[0002] As a core component in food processing, industrial mixing, or laboratory equipment, the performance of mixing blades directly affects mixing efficiency, uniformity, and equipment lifespan. In household applications, examples include food processor blades (for processing fruit and vegetable juices and sauces) and manual whisks (for whipping egg liquids).
[0003] However, most traditional mixing blades have only one adjustment method, which can only be adjusted before use, resulting in reduced adaptability. If the storage container is large, the blades that are not properly adjusted may not be able to reach the bottom, causing the material to separate or mix unevenly, requiring the machine to be stopped for replacement and readjustment, which increases labor costs and time loss. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, most traditional mixing blades have a single method for length adjustment, which can only be adjusted before use, resulting in reduced adaptability. If the storage container is large, an improperly adjusted blade may not be able to reach the bottom, causing material stratification or uneven mixing, requiring machine shutdown for replacement and readjustment, increasing labor costs and time losses. This utility model proposes a blade with adjustable length.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a length-adjustable cutting tool, including a mounting plate, a support plate fixedly connected to one side of the mounting plate, the support plate being L-shaped, and an adjustment mechanism being provided on one side of the support plate;
[0006] The adjustment mechanism includes a first motor, one side of which is fixedly mounted on one side of a support plate. A rotating rod is fixedly connected to the output end of the first motor. A connecting rod is rotatably connected to one end of the rotating rod, and an adjustment rod is rotatably connected to the other end of the connecting rod. A cutter head assembly is provided at one end of the adjustment rod.
[0007] Preferably, a guide sleeve is fixedly connected to the inner cavity of the mounting plate, a ball bearing is rotatably connected to the inner cavity of the guide sleeve, and an adjusting rod is disposed in the inner cavity of the guide sleeve, with the surface of the adjusting rod conforming to the surface of the ball bearing.
[0008] Preferably, a limiting plate is fixedly connected to the surface of the adjusting rod, and a limiting rod is fixedly connected to one side of the support plate, with the surface of the limiting rod slidably connected to the inner cavity of the limiting plate.
[0009] Preferably, the cutter head assembly includes a mounting shell, the inner cavity of which is provided with a first cavity, a second cavity and a third cavity, and one end of the adjusting rod is fixedly connected to a fixing plate, the surface of which is snapped into the inner wall of the first cavity.
[0010] Preferably, a second motor is fixedly installed on the inner wall of the second cavity, and a drive gear is fixedly connected to the output end of the second motor. The drive gear is located in the third cavity.
[0011] Preferably, the surface of the mounting shell is provided with heat dissipation holes, and the number of heat dissipation holes is several, with the inner wall of the heat dissipation holes communicating with the inner wall of the second cavity.
[0012] Preferably, the inner cavity of the mounting shell is rotatably connected to a rotating shaft, and there are multiple rotating shafts. One end of each rotating shaft is fixedly connected to a driven gear. The driven gear is disposed in the second cavity, and the teeth of the driven gear mesh with the teeth of the driving gear. The other end of the rotating shaft is fixedly connected to a blade.
[0013] The advantages of this utility model are:
[0014] In this invention, the mounting plate serves as the main connector, the support plate supports the adjustment mechanism, and the first motor can be considered the drive source in the adjustment mechanism. The first motor can drive the rotating rod to rotate, and while the rotating rod rotates continuously, it can drive the connecting rod to swing periodically. While the connecting rod swings, the other end drives the adjustment rod to rise and fall periodically, which can realize the continuous up and down crushing of the cutter head assembly. When the first motor stops driving, the position of the adjustment rod can be fixed, and different heights can also be adjusted. This solves the problems of most traditional mixing blade length adjustment methods being singular, only able to be adjusted before use, resulting in reduced adaptability. If the storage container is large, the blades that are not adjusted properly may not be able to reach the bottom, causing material stratification or uneven mixing, requiring machine shutdown for replacement and readjustment, increasing labor costs and time losses. Attached Figure Description
[0015] 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.
[0016] Figure 1 This is a first three-dimensional schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a second three-dimensional schematic diagram of the overall structure of this utility model;
[0018] Figure 3 This is a three-dimensional schematic diagram of the adjustment mechanism of this utility model;
[0019] Figure 4 This is a three-dimensional schematic diagram of the guide sleeve and ball bearings of this utility model;
[0020] Figure 5 This is a three-dimensional schematic diagram of the cutter head assembly of this utility model.
[0021] In the diagram: 1. Mounting plate; 2. Support plate; 3. Adjustment mechanism; 301. First motor; 302. Rotating rod; 303. Connecting rod; 304. Adjusting rod; 4. Cutter head assembly; 401. Mounting shell; 402. First cavity; 403. Second cavity; 404. Third cavity; 405. Fixing plate; 406. Second motor; 407. Drive gear; 408. Heat dissipation hole; 409. Rotating shaft; 410. Driven gear; 411. Blade; 5. Guide sleeve; 6. Ball bearing; 7. Limiting plate; 8. Limiting rod. Detailed Implementation
[0022] 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.
[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0024] This application discloses an adjustable-length cutting tool. (Refer to...) Figures 1 to 3 An adjustable-length cutting tool includes a mounting plate 1, a support plate 2 fixedly connected to one side of the mounting plate 1, the support plate 2 being L-shaped, and an adjustment mechanism 3 provided on one side of the support plate 2.
[0025] The adjustment mechanism 3 includes a first motor 301, one side of which is fixedly mounted on one side of the support plate 2. A rotating rod 302 is fixedly connected to the output end of the first motor 301. A connecting rod 303 is rotatably connected to one end of the rotating rod 302, and an adjusting rod 304 is rotatably connected to the other end of the connecting rod 303. A blade assembly 4 is provided at one end of the adjusting rod 304. The mounting plate 1 plays a primary connecting role in this adjustable-length blade assembly, and the mounting plate 1 can be connected to a food storage container, placing the blade assembly 4 inside the container to process the food. The crushing process is carried out. The support plate 2 can support the adjustment mechanism 3. The first motor 301 can be regarded as the driving source in the adjustment mechanism 3. The first motor 301 can drive the rotating rod 302 to rotate. While the rotating rod 302 is rotating continuously, it can drive the connecting rod 303 to swing periodically. While the connecting rod 303 is swinging, the other end drives the adjustment rod 304 to rise and fall periodically. This can realize the continuous up and down crushing of the cutter head assembly 4. When the first motor 301 stops driving, the position of the adjustment rod 304 can be fixed, and different heights can also be adjusted.
[0026] Reference Figure 4 A guide sleeve 5 is fixedly connected to the inner cavity of the mounting plate 1. A ball bearing 6 is rolledly connected to the inner cavity of the guide sleeve 5. An adjusting rod 304 is disposed in the inner cavity of the guide sleeve 5. The surface of the adjusting rod 304 is in contact with the surface of the ball bearing 6. Through the guide sleeve 5, the adjusting rod 304 can be raised and lowered along the inner cavity of the guide sleeve 5 to achieve height adjustment. Furthermore, the sliding efficiency of the adjusting rod 304 can be improved by the ball bearing 6 in contact with the surface of the adjusting rod 304.
[0027] Reference Figure 3 A limiting plate 7 is fixedly connected to the surface of the adjusting rod 304, and a limiting rod 8 is fixedly connected to one side of the support plate 2. The surface of the limiting rod 8 is slidably connected to the inner cavity of the limiting plate 7. Through the setting of the limiting plate 7 and the limiting rod 8, the limiting plate 7 and the adjusting rod 304 are fixedly connected. When the adjusting rod 304 slides, it can drive the limiting plate 7 to slide along the surface of the limiting rod 8, thereby further improving the stability of the adjusting rod 304.
[0028] Reference Figure 5The cutter head assembly 4 includes a mounting shell 401. The inner cavity of the mounting shell 401 has a first cavity 402, a second cavity 403, and a third cavity 404. One end of an adjusting rod 304 is fixedly connected to a fixing plate 405. The surface of the fixing plate 405 is snapped against the inner wall of the first cavity 402. A second motor 406 is fixedly mounted on the inner wall of the second cavity 403. The output end of the second motor 406 is fixedly connected to a drive gear 407, which is located in the third cavity 404. Multiple rotating shafts 409 are rotatably connected to the inner cavity of the mounting shell 401. One end of each rotating shaft 409 is fixedly connected to a driven gear 410, which is located in the second cavity 403. The teeth of the driven gear 410 mesh with the teeth of the drive gear 407. The other end of 09 is fixedly connected to the blade 411. Through the set blade assembly 4, the mounting shell 401 in the blade assembly 4 plays the main connecting role. The fixing plate 405 and the first cavity 402 are snapped together to improve the stability of the blade assembly 4. The second motor 406 can be regarded as the driving source of the blade assembly 4. The second motor 406 can be an R130 type micro motor. The second motor 406 is fixedly installed in the second cavity 403 and can drive the drive gear 407 to rotate. Since the teeth of the drive gear 407 and the teeth of the driven gear 410 mesh with each other, the drive gear 407 can drive the driven gear 410 to rotate while rotating. The driven gear 410 can drive the corresponding rotating shaft 409 to rotate while rotating. The rotation of the rotating shaft 409 can drive the blade 411 to crush.
[0029] Reference Figure 5 The surface of the mounting housing 401 is provided with heat dissipation holes 408. There are several heat dissipation holes 408. The inner wall of the heat dissipation hole 408 is connected to the inner wall of the second cavity 403. Through the heat dissipation holes 408, the heat generated by the second motor 406 can be discharged through the heat dissipation holes 408, so as to avoid the second motor 406 overheating and affecting its service life.
[0030] Working principle: The mounting shell 401 in the cutter head assembly 4 serves as the main connection. The fixing plate 405 and the first cavity 402 are engaged to improve the stability of the cutter head assembly 4. The second motor 406 can be regarded as the driving source of the cutter head assembly 4. The second motor 406 is fixedly installed in the second cavity 403 and can drive the drive gear 407 to rotate. Since the teeth of the drive gear 407 and the driven gear 410 mesh with each other, the rotation of the drive gear 407 can drive the driven gear 410 to rotate. The rotation of the driven gear 410 can drive the corresponding rotating shaft 409 to rotate. The rotation of the rotating shaft 409 can drive the blade 411 to crush. The first motor 301 can be regarded as the driving source in the adjustment mechanism 3. The first motor 301 can transmit the rotation of the blade 411 to the control mechanism 3. The rod 302 rotates, and while the rod 302 continues to rotate, it can drive the connecting rod 303 to swing periodically. While the connecting rod 303 swings, the other end drives the adjusting rod 304 to swing periodically, which can realize the continuous up and down crushing of the cutter head assembly 4. When the first motor 301 stops driving, the position of the adjusting rod 304 can be fixed, and different heights can also be adjusted. The adjusting rod 304 can be raised and lowered along the inner cavity of the guide sleeve 5 to achieve height adjustment. The ball bearings 6 that are in contact with the surface of the adjusting rod 304 can improve the sliding efficiency of the adjusting rod 304. The limiting plate 7 and the adjusting rod 304 are fixedly connected. While the adjusting rod 304 slides, it can drive the limiting plate 7 to slide along the surface of the limiting rod 8, thereby further improving the stability of the adjusting rod 304.
[0031] 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 length-adjustable tool comprising a mounting plate (1), characterised in that: A support plate (2) is fixedly connected to one side of the mounting plate (1). The support plate (2) is L-shaped. An adjustment mechanism (3) is provided on one side of the support plate (2). The adjustment mechanism (3) includes a first motor (301), one side of which is fixedly installed on one side of the support plate (2). The output end of the first motor (301) is fixedly connected to a rotating rod (302). One end of the rotating rod (302) is rotatably connected to a connecting rod (303), and the other end of the connecting rod (303) is rotatably connected to an adjusting rod (304). One end of the adjusting rod (304) is provided with a cutter head assembly (4).
2. A length adjustable knife according to claim 1, characterized in that: The inner cavity of the mounting plate (1) is fixedly connected to a guide sleeve (5), and the inner cavity of the guide sleeve (5) is rotatably connected to a ball (6). The adjusting rod (304) is disposed in the inner cavity of the guide sleeve (5), and the surface of the adjusting rod (304) is in contact with the surface of the ball (6).
3. A length adjustable knife according to claim 1, characterized in that: The surface of the adjusting rod (304) is fixedly connected to the limiting plate (7), and one side of the support plate (2) is fixedly connected to the limiting rod (8). The surface of the limiting rod (8) is slidably connected to the inner cavity of the limiting plate (7).
4. The length adjustable knife of claim 1, wherein: The cutter head assembly (4) includes a mounting shell (401), the inner cavity of which is provided with a first cavity (402), a second cavity (403) and a third cavity (404), and one end of the adjusting rod (304) is fixedly connected to a fixing plate (405), the surface of which is snapped into the inner wall of the first cavity (402).
5. The adjustable-length cutting tool according to claim 4, characterized in that: A second motor (406) is fixedly installed on the inner wall of the second cavity (403), and a drive gear (407) is fixedly connected to the output end of the second motor (406). The drive gear (407) is located in the third cavity (404).
6. A length adjustable knife according to claim 5, characterized in that: The surface of the mounting shell (401) is provided with heat dissipation holes (408), and there are several heat dissipation holes (408). The inner wall of the heat dissipation holes (408) is connected to the inner wall of the second cavity (403).
7. A length adjustable knife according to claim 5, characterized in that: The inner cavity of the mounting housing (401) is rotatably connected to a rotating shaft (409). There are multiple rotating shafts (409). One end of each rotating shaft (409) is fixedly connected to a driven gear (410). The driven gear (410) is disposed in the second cavity (403). The teeth of the driven gear (410) mesh with the teeth of the driving gear (407). The other end of the rotating shaft (409) is fixedly connected to a blade (411).