Tool knife
By designing a structure with a swing sleeve and switching switch in the tool knife, the problem of troubles and insecurity of existing tool knife is solved, and convenient and safe operation of breaking the blade with one hand is achieved.
Patent Information
- Application Number
- CN202420100065.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-16
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-16
AI Technical Summary
When the existing tool knife breaks the blunt section, it needs to be operated with other tools or bare hands, which is troublesome and not safe enough.
A tool knife with a swing sleeve and a switching switch is designed. By pushing the switching switch, the swing sleeve rotates around the connecting axis, realizing the function of breaking the blade with one hand, ensuring more convenient and safe operation.
The single-handed blade break is achieved, which improves the convenience and safety of operation and avoids the need to use other tools.
Smart Images
Figure CN222200629U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of tool knives, and in particular relates to a tool knife. Background Art
[0002] There is a kind of utility knife whose blade can be pushed out and pulled in the slide groove of the sleeve handle, so that the length of the blade can be freely adjusted according to the needs of the working environment. In addition, although the blade itself is a whole, there are several breaking lines on it, which can be broken section by section. That is, after the front section of the blade is blunt, it can be broken and discarded, and the second section behind can be used to ensure that the blade is always sharp until all the blades are used up and replaced with new ones. Although this kind of telescopic knife has the characteristics of reusable handles, replaceable blades, convenient and safe use and storage, it has a single purpose.
[0003] However, when breaking off a blunt section of the existing utility knife, other tools or bare hands are required, which is troublesome and unsafe. Utility Model Content
[0004] The purpose of the utility model is to provide a utility knife to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tool knife, comprising a shell, a slide seat is fixedly arranged inside the shell, a retractable and slidable blade is arranged in the slide seat, a limit slider is arranged at one end of the inner side of the blade, and a connecting protrusion is arranged on the limit slider, the connecting protrusion passes through the end of the blade for clamping connection, and the limit slider is also provided with a push switch for switching the movement state of the limit slider, a blade outlet is arranged at one end of the shell, and a swing sleeve is arranged at the outer side of the blade outlet, a through channel aligned with the blade outlet is arranged on the swing sleeve, the other end of the blade passes through the blade outlet and the through channel in turn, and extends to the outer side of the swing sleeve, one side of the swing sleeve is rotatably connected to the shell by a connecting shaft, and a switching component for limiting the rotation of the swing sleeve is arranged between the top edge of the swing sleeve and the shell.
[0006] Preferably, the switching assembly includes a switching switch, a limiting slide, a limiting plate, a switching groove, a limiting protrusion and a limiting block, the limiting plate is fixedly mounted on the top of the shell, the limiting plate is provided with a switching groove, the edge of the swing sleeve is provided with a switching switch, the bottom of the switching switch is provided with a limiting block that can slide along the switching groove, a limiting protrusion is fixedly provided on one side of the switching switch, the swing sleeve is provided with a limiting slide for the limiting protrusion to slide, and the limiting protrusion extends to the limiting slide for a limiting sliding connection.
[0007] Preferably, the switching groove is in an L-shaped structure, and the size of the switching groove matches the size of the limiting block.
[0008] Preferably, a plurality of breaking grooves are arranged at equal distances on the blade, and an anti-slip groove is arranged on the outer surface of the shell.
[0009] Preferably, the switching switch, the limiting protrusion and the limiting block are an integrally formed one-piece structure, and the sliding direction of the limiting protrusion along the limiting sliding groove is consistent with the sliding direction of the limiting block along the switching groove.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: a tool knife with a blade breaking function is designed in the utility model, and a swinging sleeve is designed at the blade protruding end of the shell. During normal use, the blade passes through the swinging sleeve and the swinging sleeve is engaged and limited; when the blade at the front end is damaged or the blade becomes blunt, the switching switch can be pushed to push the limiting block to the front corner of the switching slot, and the switching switch can be pushed to one side to drive the swinging sleeve to rotate around the connecting shaft, and the swinging sleeve breaks the blade located in the swinging sleeve, so that it can be operated with one hand, and the operation is more convenient and safe. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0012] Figure 2 It is a schematic diagram of the explosion structure of the utility model.
[0013] Figure 3 It is a schematic diagram of the exploded rear view structure of the utility model.
[0014] 1. Shell; 2. Slide seat; 3. Limit slider; 4. Push switch; 5. Connecting protrusion; 6. Blade; 7. Swing sleeve; 8. Connecting shaft; 9. Switching switch; 10. Limiting slide groove; 11. Limiting piece; 12. Switching groove; 13. Limiting protrusion; 14. Limiting block. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] See also Figure 1-3The utility model provides a technical solution: a tool knife comprises a shell 1, a slide seat 2 is fixedly arranged inside the shell 1, a retractable and slidable blade 6 is arranged in the slide seat 2, a limit slider 3 is arranged at one end of the inner side of the blade 6, and a connecting protrusion 5 is arranged on the limit slider 3, the connecting protrusion 5 passes through the end of the blade 6 and is engaged and connected, and a push switch 4 for switching the movement state of the limit slider 3 is also arranged on the limit slider 3 to adjust the extension amount of the blade 6, a blade outlet is arranged at one end of the shell 1, and a swing sleeve 7 is arranged at the outer side of the blade outlet, and a through channel aligned with the blade outlet is arranged on the swing sleeve 7, the other end of the blade 6 passes through the blade outlet and the through channel in turn, and extends to the outer side of the swing sleeve 7, one side of the swing sleeve 7 is rotatably connected to the shell 1 through a connecting shaft 8 to ensure that the swing sleeve 7 can rotate, and a switching component for limiting the rotation of the swing sleeve 7 is arranged between the top edge of the swing sleeve 7 and the shell 1. In this embodiment, preferably, the switching assembly includes a switching switch 9, a limiting slide 10, a limiting piece 11, a switching groove 12, a limiting protrusion 13 and a limiting block 14. The limiting piece 11 is fixedly mounted on the top of the housing 1, and a switching groove 12 is provided on the limiting piece 11. The switching switch 9 is provided on the edge of the swing sleeve 7, and a limiting block 14 that can slide along the switching groove 12 is provided on the bottom of the switching switch 9. A limiting protrusion 13 is fixedly provided on one side of the switching switch 9. A limiting slide 10 for sliding the limiting protrusion 13 is provided on the swing sleeve 7, and the limiting protrusion 13 extends to the limiting slide 10 for limited sliding connection. In normal use, the blade 6 passes through the swing sleeve 7, and the swing sleeve 7 is in a locked limited state; when the blade 6 at the front end is damaged or the blade becomes blunt, the switching switch 9 can be pushed so that the limiting block 14 is pushed to the front corner of the switching groove 12, and the switching switch 9 can be pushed to one side, driving the swing sleeve 7 to rotate around the connecting shaft 8, and the rotation of the swing sleeve 7 can break the blade 6 located in the swing sleeve 7. In the present embodiment, preferably, the shape of the switching groove 12 is an L-shaped structure, and the size of the switching groove 12 matches the size of the limiting block 14, in order to play a limiting role, to ensure that the stability of the swing sleeve 7 limit can be ensured when the swing sleeve 7 does not need to rotate. In the present embodiment, preferably, a plurality of breaking grooves are arranged at equal distances on the blade 6, in order to further facilitate breaking and ensure that the breaking parts are neat, and the outer surface of the shell 1 is provided with an anti-skid groove to play an anti-skid role. In the present embodiment, preferably, the switching switch 9 is an integrally formed one-piece structure with the limiting protrusion 13 and the limiting block 14, in order to ensure the integrity of the structure, the direction in which the limiting protrusion 13 slides along the limiting slide 10 is consistent with the sliding direction of the limiting block 14 along the switching groove 12.
[0017] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A utility knife, comprising a housing (1), a slide seat (2) fixedly arranged inside the housing (1), a retractable and slidable blade (6) arranged inside the slide seat (2), a limit slider (3) arranged at one end of the inner side of the blade (6), and a connecting protrusion (5) arranged on the limit slider (3), the connecting protrusion (5) passing through the end of the blade (6) for clamping connection, and a push switch (4) for switching the movement state of the limit slider (3) is also arranged on the limit slider (3), characterized in that: A blade outlet is provided at one end of the housing (1), and a swing sleeve (7) is provided outside the blade outlet; a through-channel aligned with the blade outlet is provided on the swing sleeve (7); the other end of the blade (6) passes through the blade outlet and the through-channel in sequence and extends to the outside of the swing sleeve (7); one side of the swing sleeve (7) is rotatably connected to the housing (1) via a connecting shaft (8); and a switching component for limiting the rotation of the swing sleeve (7) is provided between the top edge of the swing sleeve (7) and the housing (1).
2. A utility knife according to claim 1, characterized in that: The switching assembly comprises a switching switch (9), a limiting slide groove (10), a limiting piece (11), a switching groove (12), a limiting protrusion (13) and a limiting block (14); the limiting piece (11) is fixedly mounted on the top of the housing (1); the limiting piece (11) is provided with a switching groove (12); the switching switch (9) is arranged at the edge of the swing sleeve (7); the limiting block (14) which can slide along the switching groove (12) is arranged at the bottom of the switching switch (9); a limiting protrusion (13) is fixedly arranged on one side of the switching switch (9); the limiting slide groove (10) for the limiting protrusion (13) to slide is provided on the swing sleeve (7); the limiting protrusion (13) extends into the limiting slide groove (10) for limiting sliding connection.
3. A utility knife according to claim 2, characterized in that: The switching groove (12) is in an L-shaped structure, and the size of the switching groove (12) matches the size of the limiting block (14).
4. The utility knife according to claim 1, characterized in that: A plurality of breaking grooves are arranged at equal distances on the blade (6), and an anti-slip groove is arranged on the outer surface of the shell (1).
5. The utility knife according to claim 2, characterized in that: The switching switch (9), the limiting protrusion (13) and the limiting block (14) are an integrally formed one-piece structure, and the direction in which the limiting protrusion (13) slides along the limiting slide groove (10) is consistent with the direction in which the limiting block (14) slides along the switching groove (12).