A utility knife with adjustable cutting depth

Abstract

This utility model discloses an adjustable cutting depth utility knife, relating to the field of utility knife technology. It includes a utility knife assembly comprising a handle, a screw fixedly mounted on one side of the handle, a locking knob threaded onto the screw, a limiting component on the outer side of the screw, the limiting component including a limiting plate, a sliding groove in the middle of the limiting plate through which the screw passes, a fixing plate fixedly mounted on one end of the screw, a damping sleeve fixedly mounted on one end of the fixing plate, an marking component inside the damping sleeve, the marking component including a sliding rod, a second limiting block fixedly mounted on one end of the sliding rod, an indicator fixedly mounted on one end of the second limiting block, and a scale groove on the side of one end of the limiting plate. This utility model can precisely adjust the cutting depth of the blade, has a simple structure, is easy to maintain, and has high practical value.

Description

Technical Field

[0001] This utility model relates to the field of utility knife technology, specifically a utility knife with adjustable cutting depth. Background Technology

[0002] A utility knife, also commonly known as a carving knife or wallpaper knife, may have different names depending on the region and usage scenario. It is a multi-functional cutting tool, typically used for precision cutting tasks in handicrafts, office work, and industrial applications. A key feature of utility knives is their extremely sharp blades, which can be replaced as needed. The blades are generally long, extending beyond the handle to accommodate different cutting depths. Based on this, the inventor has discovered the following problems: Current utility knives primarily control cutting depth by adjusting the blade extension length. However, the blade extension length is related to the relative position of the spring-loaded push button and the locking teeth on the inner side of the guide rail. The smallest unit of length control is the distance between two locking teeth, resulting in limited adjustment precision. Furthermore, when the blade tip becomes dull and breaks off, the remaining blade tip is usually not intact. In this case, the cutting depth of the remaining tip is less than that of the intact tip. Adjusting the target cutting depth accurately by sliding the spring-loaded push button is inconvenient and difficult to use.

[0003] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings to provide a utility knife with adjustable cutting depth, in order to achieve a more practical purpose. Utility Model Content

[0004] The purpose of this invention is to provide a utility knife with adjustable cutting depth to solve the problems mentioned in the background art.

[0005] An adjustable cutting depth utility knife includes a utility knife assembly. The utility knife assembly includes a handle, a screw fixedly mounted on one side of the handle, a locking knob threadedly connected to the screw, a limiting component on the outer side of the screw, the limiting component including a limiting plate, a sliding groove formed in the middle of the limiting plate, the screw passing through the sliding groove, a fixing plate fixedly mounted on one end of the screw, a damping sleeve fixedly mounted on one end of the fixing plate, an marking component inside the damping sleeve, the marking component including a sliding rod slidably connected to the damping sleeve, a second limiting block fixedly mounted on one end of the sliding rod, an indicator fixedly mounted on one end of the second limiting block, a scale groove formed on the side of one end of the limiting plate, and the indicator disposed on one side of the scale groove.

[0006] By adopting the above technical solution, the handle provides easy grip and support, facilitating user operation of the device for cutting. A locking knob connected to the screw thread allows for easy fixation and adjustment of the limiting component to a suitable position. The sliding groove facilitates the fixed installation of the limiting plate on the outside of the screw, with the bottom end of the limiting plate abutting against the material being cut, thus limiting and controlling the cutting depth of the blade. The damping sleeve facilitates the fixation of the marking component, allowing it to slide along the damping sleeve while providing damping to secure it in one position. The scale groove contains graduated lines and numbers, serving as an indicator. Preferably, the device has a circular structure. The relative positions of the marking component and the limiting component are marked by an indicator fitted onto the marked numbers. When using the device, the blade is extended to a suitable length, and the blade tip is placed against a hard surface. The limiting plate is slid to make its bottom fit against the hard surface. The locking knob is turned to lock the sliding limiting plate. The sliding rod is slid to move the indicator to the zero position of the scale groove. The locking knob is then loosened to adjust the position of the limiting plate. At this point, the scale groove indicated by the indicator is the cutting depth that the blade can cut. After adjusting the limiting plate to the appropriate position, the locking knob is turned to lock it, achieving precise adjustment of the blade cutting depth. The structure is simple and easy to maintain.

[0007] Furthermore, a guide rail is provided inside the handle, and a blade is provided inside the guide rail.

[0008] By adopting the above technical solution, the guide rail facilitates the housing of the blade and the spring push button, allowing the blade to extend and cut the material.

[0009] Furthermore, the guide rail has teeth on both sides inside, a spring push button is fixedly installed at one end of the blade, and an end cap is engaged with one end of the handle.

[0010] By adopting the above technical solution, the end cap facilitates the disassembly and replacement of the blade by opening one end of the guide rail, and the spring push button is used to adjust the position of the blade in conjunction with the locking teeth.

[0011] Furthermore, guide grooves are provided on both sides of the screw facing the handle, and the guide grooves are slidably connected to the sliding groove.

[0012] By adopting the above technical solution and setting the guide groove, it is easy to prevent the limit plate and the screw from rotating, so that the limit plate can only slide up and down along the guide groove.

[0013] Furthermore, a push groove is provided on the side of the limiting piece away from the scale groove, and the push groove is located on the side away from the handle.

[0014] By adopting the above technical solution and by setting the push groove, it is easy to push the limit piece to adjust the position after loosening the locking knob.

[0015] Furthermore, a first limiting block is fixedly installed at the end of the sliding rod away from the second limiting block, and a push block is fixedly installed on one side of the first limiting block.

[0016] By adopting the above technical solution, the position of the sliding rod can be easily adjusted by setting the push block, thereby adjusting the position of the indicator. The first limit block and the second limit block play the role of preventing the sliding rod from sliding out of the damping sleeve.

[0017] Furthermore, the outer side of the handle is provided with an anti-slip groove, and the spring push button is provided with an anti-slip protrusion on the side away from the handle.

[0018] By adopting the above technical solution, the anti-slip grooves and anti-slip protrusions facilitate the increase of friction, making it easy to adjust the blade extension length and to hold the handle stably for use of the device.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: The handle provides easy grip and support, facilitating user operation for cutting; the screw threaded connection with a locking knob facilitates fixing and adjusting the limiting component to a suitable position; the sliding groove allows for the fixed installation of a limiting plate on the outside of the screw, with the bottom end of the limiting plate abutting against the material being cut, thus limiting and controlling the cutting depth of the blade; the damping sleeve facilitates the fixing of the marking component, allowing it to slide along the damping sleeve with sufficient damping to secure it in one position; and the scale groove contains scale lines and marking numbers. The indicator is preferably circular. It indicates the relative position of the marking component and the limiting component by fitting the indicator onto the marked number. When using the device, extend the blade to a suitable length, place the blade tip against a hard surface, slide the limiting plate until its bottom is in contact with the hard surface, turn the locking knob to lock the sliding limiting plate, slide the sliding rod to move the indicator to the zero position of the scale groove, and then loosen the locking knob to adjust the position of the limiting plate. At this point, the scale groove indicated by the indicator is the cutting depth that the blade can cut. After adjusting the limiting plate to the appropriate position, turn the locking knob to lock it, achieving precise adjustment of the blade's cutting depth. The device has a simple structure and is easy to maintain. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a utility knife with adjustable cutting depth according to the present invention.

[0021] Figure 2 This is an exploded view of the utility knife component of this utility model;

[0022] Figure 3 This is a partial enlarged view of the handle of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the limiting component of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the identification component of this utility model.

[0025] In the diagram: 1. Utility knife assembly; 11. Handle; 12. End cap; 13. Locking knob; 14. Guide rail; 15. Clamping teeth; 16. Blade; 17. Spring push button; 18. Screw; 19. Guide groove; 110. Fixing piece; 111. Damping sleeve; 2. Limiting assembly; 21. Limiting piece; 22. Sliding groove; 23. Scale groove; 24. Push groove; 3. Marking assembly; 31. Sliding rod; 32. First limiting block; 33. Second limiting block; 34. Indicator; 35. Push block. Detailed Implementation

[0026] 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 protection scope of the present utility model.

[0027] Please see Figures 1-5This utility model provides a technical solution: an adjustable cutting depth utility knife, including a utility knife assembly 1. The utility knife assembly 1 includes a handle 11, which provides a grip and support for easy use by the user. A screw 18 is fixedly installed on one side of the handle 11, and a locking knob 13 is threadedly connected to the screw 18. The locking knob 13 facilitates the fixing of a limiting component 2 and the adjustment of the limiting component 2 to a suitable position. A limiting component 2 is provided on the outer side of the screw 18. The limiting component 2 includes a limiting piece 21, and a sliding groove 2 is formed in the middle of the limiting piece 21. 2. The sliding groove 22 facilitates the fixing of the limiting piece 21 to the outside of the screw 18. The bottom end of the limiting piece 21 abuts against the material being cut, thereby limiting and controlling the cutting depth of the blade 16. The screw 18 passes through the sliding groove 22, and a fixing piece 110 is fixedly installed at one end of the screw 18. A damping sleeve 111 is fixedly installed at the other end of the fixing piece 110. The damping sleeve 111 facilitates the fixing of the marking component 3, allowing the marking component 3 to slide along the damping sleeve 111. It also provides a certain degree of damping, which can fix the marking component 3 in one position. The marking component 3 is located inside the damping sleeve 111. The marking component 3 includes a sliding rod 31, which is slidably connected to a damping sleeve 111. A second limiting block 33 is fixedly installed at one end of the sliding rod 31, and an indicator 34 is fixedly installed at one end of the second limiting block 33. A scale groove 23 is opened on the side of one end of the limiting piece 21, and the indicator 34 is disposed on one side of the scale groove 23. The scale groove 23 has scale marking lines and marking numbers inside. The indicator 34 is preferably circular. The relative position of the marking component 3 and the limiting component 2 is marked by the indicator 34 being fitted onto the marking numbers. When using the device, the blade 1 is... Extend the blade 16 to a suitable length and place its tip against a hard surface. Slide the limiting piece 21 until its bottom is flush with the surface. Rotate the locking knob 13 to lock the limiting piece 21. Slide the sliding rod 31 to move the indicator 34 to the zero position of the scale groove 23. Loosen the locking knob 13 to adjust the position of the limiting piece 21. The position of the scale groove 23 indicated by the indicator 34 is the cutting depth that the blade 16 can cut. After adjusting the limiting piece 21 to the appropriate position, rotate the locking knob 13 to lock it. This allows for precise adjustment of the cutting depth of the blade 16. The structure is simple and easy to maintain. The handle 11 has a guide rail 14 inside, and the blade 16 is housed within the guide rail 14. The guide rail 14 facilitates the housing of the blade 16 and the spring push button 17, allowing the blade 16 to extend and cut the material.The guide rail 14 has locking teeth 15 on both sides inside. One end of the blade 16 is fixedly installed with a spring push button 17. One end of the handle 11 is engaged with an end cover 12. The end cover 12 makes it easy to open one end of the guide rail 14 to disassemble and replace the blade 16. The spring push button 17 is used to adjust the position of the blade 16 in conjunction with the locking teeth 15.

[0028] The screw 18 has guide grooves 19 on both sides of the end facing the handle 11. The guide grooves 19 are slidably connected to the sliding groove 22. The guide grooves 19 help to prevent the limiting piece 21 from rotating with the screw 18, so that the limiting piece 21 can only slide up and down along the guide grooves 19.

[0029] Among them, the side of the limiting piece 21 away from the scale groove 23 has a push groove 24. The push groove 24 is located on the side away from the handle 11. The push groove 24 makes it easy to push the limiting piece 21 to adjust its position after the locking knob 13 is loosened.

[0030] The sliding rod 31 is fixedly mounted with a first limiting block 32 at the end away from the second limiting block 33. A push block 35 is fixedly mounted on one side of the first limiting block 32. The push block 35 facilitates the adjustment of the position of the sliding rod 31, thereby adjusting the position of the indicator 34. The first limiting block 32 and the second limiting block 33 prevent the sliding rod 31 from sliding out of the damping sleeve 111.

[0031] The handle 11 has an anti-slip groove on its outer side, and the spring push button 17 has an anti-slip protrusion on the side away from the handle 11. The anti-slip groove and anti-slip protrusion increase the friction, making it easier to adjust the extension length of the blade 16 and to hold the handle 11 stably for use.

[0032] Specifically, the working principle of this adjustable cutting depth utility knife is as follows: During use, the handle 11 provides a comfortable grip, facilitating cutting. The guide rail 14 houses the blade 16 and the spring-loaded push button 17, allowing the blade 16 to extend and cut materials. The end cap 12 allows for easy access to the guide rail 14 for disassembly and replacement of the blade 16. The spring-loaded push button 17 engages with the locking teeth 15 to adjust the position of the blade 16. Anti-slip grooves and protrusions increase friction, facilitating adjustment of the blade 16's extension length and providing a stable grip on the handle 11 for use. A locking knob 13 is threaded onto the screw 18 to facilitate fixing the limiting component 2 and adjusting it to a suitable position. The sliding groove 22 allows the limiting piece 21 to be fixedly installed on the outside of the screw 18, with its bottom end abutting against the material being cut, thus limiting and controlling the cutting depth of the blade 16. The guide groove 19 prevents the limiting piece 21 from rotating with the screw 18, ensuring it can only slide up and down along the guide groove 19. The damping sleeve 111 facilitates fixing the marking component 3, allowing it to slide smoothly along the damping sleeve 111 while providing a certain degree of damping. The marking component 3 can be fixed in one position. The push block 35 facilitates the adjustment of the position of the sliding rod 31, thereby adjusting the position of the indicator 34. The first limiting block 32 and the second limiting block 33 prevent the sliding rod 31 from sliding out of the damping sleeve 111. The scale groove 23 has scale markings and numbers inside. The indicator 34 is preferably circular. The push groove 24 facilitates easy adjustment of the position by pushing the limiting piece 21 after loosening the locking knob 13. The indicator 34, fitted onto the number, marks the relative position of the marking component 3 and the limiting component 2. When using the device, extend the blade 16 to a suitable length, place the tip of the blade 16 against a hard surface, slide the limiting plate 21 so that the bottom of the limiting plate 21 is in contact with the hard surface, turn the locking knob 13 to lock the sliding limiting plate 21, slide the sliding rod 31 to move the indicator 34 to the zero position of the scale groove 23, and then loosen the locking knob 13 to adjust the position of the limiting plate 21. At this time, the position of the scale groove 23 indicated by the indicator 34 is the cutting depth that the blade 16 can cut. After adjusting the limiting plate 21 to a suitable position, turn the locking knob 13 to lock it, so as to achieve precise adjustment of the cutting depth of the blade 16. The structure is simple and easy to maintain.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable depth cutting utility knife, characterized by, The utility knife assembly (1) includes a handle (11), a screw (18) fixedly mounted on one side of the handle (11), a locking knob (13) threadedly connected to the screw (18), a limiting component (2) provided on the outside of the screw (18), the limiting component (2) including a limiting piece (21), a sliding groove (22) provided in the middle of the limiting piece (21), the screw (18) passing through the sliding groove (22), and a fixing piece (110) fixedly mounted on one end of the screw (18). 110) A damping sleeve (111) is fixedly installed at one end. The damping sleeve (111) is provided with an marking component (3). The marking component (3) includes a sliding rod (31). The sliding rod (31) is slidably connected to the damping sleeve (111). A second limiting block (33) is fixedly installed at one end of the sliding rod (31). An indicator (34) is fixedly installed at one end of the second limiting block (33). A scale groove (23) is opened on the side of one end of the limiting piece (21). The indicator (34) is set on one side of the scale groove (23).

2. The adjustable depth cutting utility knife of claim 1, wherein, The handle (11) has a guide rail (14) inside, and the guide rail (14) has a blade (16) inside.

3. The adjustable depth cutting utility knife of claim 2, wherein, The guide rail (14) has teeth (15) on both sides inside, a spring push button (17) is fixedly installed on one end of the blade (16), and an end cap (12) is engaged with one end of the handle (11).

4. The adjustable depth cutting utility knife of claim 3, wherein, The screw (18) has guide grooves (19) on both sides of the end facing the handle (11), and the guide grooves (19) are slidably connected to the sliding groove (22).

5. The adjustable depth cutting utility knife of claim 4, wherein, The limiting piece (21) has a push groove (24) on the side away from the scale groove (23), and the push groove (24) is located on the side away from the handle (11).

6. The adjustable depth cutting utility knife of claim 1, wherein, The sliding rod (31) is fixedly installed with a first limiting block (32) at the end away from the second limiting block (33), and a push block (35) is fixedly installed on one side of the first limiting block (32).

7. The adjustable depth cutting utility knife of claim 3, wherein, The handle (11) has an anti-slip groove on its outer side, and the spring push button (17) has an anti-slip protrusion on the side away from the handle (11).

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