Art knife

Abstract

The utility model discloses an art knife which comprises a shell, a blade seat is fixed in the shell, a limiting seat matched with the blade seat in a front-back sliding mode is installed on the blade seat, a limiting reed is installed on the limiting seat, a row of tooth grooves are formed in the blade seat, the limiting reed is matched with the tooth grooves, and a blade is connected to the front end of the limiting seat. The push button comprises a push block exposed out of the shell and an insertion plate extending into the shell, one side of the shell is provided with a sliding groove which is through inside and outside and extends front and back, the insertion plate penetrates through the sliding groove and is matched with the sliding groove in a front-back sliding mode, and the insertion plate is fixedly connected with the limiting base. The push button can be easily pushed regardless of the left-hand holding or the right-hand holding of a user, and the design not only meets different requirements of using habits of the left hand and the right hand, but also ensures that the push button is not blocked when the user pushes the push button, so that the smoothness and the stability when the blade is pushed out or pushed back are realized.

Description

Technical Field

[0001] The utility model relates to a utility knife. Background Art

[0002] Utility knives are essential tools for crafts, design, drawing, and everyday cutting tasks. Their performance and ease of use are directly related to user efficiency and satisfaction. Traditional utility knives often focus on basic cutting functions, but they lack structural complexity and adaptability to user habits.

[0003] The structure of a conventional utility knife generally includes a shell, a blade seat, a blade, a limit block, a limit spring and a push button. The blade seat is fixed in the shell, the limit block is slidably mounted on the blade seat, the limit spring is mounted on the limit seat, the blade seat is provided with a row of tooth grooves, the tooth grooves cooperate with the limit spring, a circular hole is provided on the blade and is connected to the convex point on the limit block, the front end of the shell is opened for the blade to extend, the push button is provided on the front side of the utility knife and connected to the limit block, and the lower surface of the push button is provided with an abutment portion for contacting the matching portion of the limit spring. When the push button and the movable knife seat slide relative to each other, the abutment portion is suitable for abutting with the matching portion of the limit spring and squeezing the matching portion of the limit spring out of the limiting groove to release the limiting effect of the limit spring on the movable knife seat. The movable knife seat can slide in the slide groove driven by the push button to adjust the length of the blade extending out of the shell body, such as the box cutting utility knife disclosed in CN219946283 U.

[0004] Most utility knife push buttons are located on the front of the housing. However, in order to better conceal the blade, some utility knives have the push button located at a combination of the front and side. This design does not fully consider the differences in user habits, especially left-handedness. When holding the utility knife in the left hand, the push button is blocked by the palm, making it difficult to push the blade out of the knife, which causes inconvenience to some users. Therefore, it is necessary to design a utility knife that is simple in structure, easy to use, and can accommodate left-handed use. Utility Model Content

[0005] In view of the above-mentioned defects of the prior art, the purpose of the present invention is to provide a utility knife.

[0006] The technical solution of the present utility model is: a utility knife, which includes a shell, a blade seat is fixed in the shell, a limit seat is installed on the blade seat and is matched with the blade seat for sliding back and forth, a limit spring is installed on the limit seat, a row of teeth are provided on the blade seat, the limit spring cooperates with the teeth, a blade is connected to the front end of the limit seat, the blade is accommodated in the blade seat, and the front end of the shell is opened for the blade to extend out. It also includes a push button, the push button includes a push block exposed outside the shell and an insert plate extending into the shell, one side of the shell is provided with a slide groove that runs through the inside and outside and extends back and forth, the insert plate passes through the slide groove and is matched with the slide groove for sliding back and forth, and the insert plate is fixedly connected to the limit seat.

[0007] Furthermore, a clamping hole is provided on the limit seat and runs through from top to bottom, and a buckle is protruding from the bottom of the plug board and is engaged with the clamping hole.

[0008] Furthermore, the rear end of the chute is open.

[0009] Furthermore, a hand guard is fixed on the other side of the shell.

[0010] The utility knife provided by the present invention has the following beneficial effects: by providing a slide groove on one side of the shell and designing an innovative push button structure, the user can easily push the knife with the thumb against the surface of the push button regardless of whether the knife is held by the left hand or the right hand. This design not only meets the different needs of left-handed and right-handed usage habits, but also ensures that the user will not be blocked when pushing the push button, thereby achieving smoothness and stability of the blade when it is pushed out or pushed back. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is an exploded schematic diagram of the utility model;

[0013] Figure 3 This is a schematic diagram of the installation of the limit seat and push button of the utility model;

[0014] Figure 4 It is a structural schematic diagram of the shell of the utility model.

[0015] As shown in the figure: 1-housing, 11-slide groove, 2-blade seat, 21-tooth groove, 3-limit seat, 31-clamping hole, 4-limiting spring, 5-blade, 6-push button, 61-push block, 62-insert plate, 621-buckle, 7-hand guard, 8-plug. DETAILED DESCRIPTION

[0016] In order to more intuitively and completely understand the technical solution of the present invention, the following non-limiting features are described in conjunction with the accompanying drawings of the present invention:

[0017] like Figure 1 — Figure 4 As shown, a utility knife comprises a shell 1, in which a blade seat 2 is fixed, a limit seat 3 which slides forward and backward with the blade seat 2 is installed, a limit spring 4 is installed on the limit seat 3, a row of teeth grooves 21 are provided on the blade seat 2, the limit spring 4 cooperates with the teeth grooves 21, a blade 5 is connected to the front end of the limit seat 3, the blade 5 is accommodated in the blade seat 2, and the front end of the shell 1 is opened for the blade 5 to extend; the utility knife also comprises a push button 6, the push button 6 comprises a push block 61 exposed outside the shell 1 and an insert plate 62 extending into the shell 1, one side of the shell 1 is provided with a slide groove 11 which runs through inside and outside and extends forward and backward, the insert plate 62 passes through the slide groove 11 and slides forward and backward with the slide groove 11, and the insert plate 62 is fixedly connected to the limit seat 3.

[0018] like Figure 3 As shown, in order to connect the push button 6 and the limit seat 3, the limit seat 3 is provided with a through-hole 31, and the bottom of the insert plate 62 is provided with a buckle 621 that engages with the buckle 31. When the push button 6 moves forward and backward, it drives the limit seat 3 to move forward and backward, and the limit seat 3 and the blade 5 to move forward and backward.

[0019] like Figure 4 As shown, the rear end of the slide slot 11 is open, which facilitates the insertion plate 62 of the push button 6 to be inserted into the housing 1.

[0020] like Figure 1 、 Figure 2 As shown, a hand guard 7 is fixed to the other side of the housing 1. This hand guard 7 increases the comfort of the user when holding it.

[0021] like Figure 1 、 Figure 2 As shown, a plug 8 is detachably engaged at the rear end of the housing 1 .

[0022] The utility knife provided by the present invention has a slide groove 11 on one side of the shell 1 and an innovative push button 6 structure, so that no matter whether the user holds the knife with the left hand or the right hand, the user can easily use the thumb to push the push button 6 to push it. This design not only meets the different needs of left-handed and right-handed usage habits, but also ensures that the user will not be blocked when pushing the push button 6, thereby achieving smoothness and stability of the blade 5 when being pushed out or pushed back.

[0023] Of course, the above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All simple modifications and equivalent structural changes made using the contents of the description and drawings of the present invention should be included in the patent protection scope of the present invention.

Claims

1. A utility knife comprising a housing, a blade holder fixed within the housing, a limit seat mounted on the blade holder that slides forward and backward therewith, a limit spring mounted on the limit seat, a row of teeth on the blade holder, the limit spring engaging the teeth, a blade connected to the front end of the limit seat, the blade accommodated in the blade holder, the front end of the housing opening for the blade to extend, characterized in that: It also includes a push button, which includes a push block exposed outside the shell and an insert plate extending into the shell. One side of the shell is provided with a slide groove that runs through the inside and outside and extends front and back. The insert plate passes through the slide groove and slides back and forth with the slide groove. The insert plate is fixedly connected to the limit seat.

2. The utility knife according to claim 1, characterized in that: The limiting seat is provided with a clamping hole which passes through from top to bottom, and the bottom of the inserting plate is convexly provided with a clamping buckle which is engaged with the clamping hole.

3. The utility knife according to claim 1, characterized in that: The rear end of the chute is open.

4. The utility knife according to claim 1, characterized in that: A hand guard is fixed on the other side of the shell.

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