CN220807472U

CN220807472U - Pen knife

Info

Publication number: CN220807472U
Application number: CN202322724077.0U
Authority: CN
Inventors: 卢伟中
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-10-10
Filing date: 2023-10-10
Publication date: 2024-04-19
Anticipated expiration: 2033-10-10

Abstract

The utility model discloses a pen knife, which comprises a pen holder and a blade, wherein one end of the pen holder is provided with a pen point, and one side of the pen point is provided with a clamping groove; the device also comprises a pressing block, wherein one side of the pressing block is provided with a clamping part which is in plug-in fit with the clamping groove; the blades comprise a first blade and a second blade, and the width of the first blade is larger than that of the second blade; a first accommodating cavity for installing a first blade is formed between one end surface of the clamping part and the end surface of the bottom of the clamping groove; the middle part of the bottom end surface of the clamping groove is provided with a second accommodating cavity for installing a second blade, and the width of the second accommodating cavity is smaller than that of the first accommodating cavity; the pressing block is provided with a blade pressing piece. The pen knife provided by the utility model has the advantages that the pen points of the same pen holder can be provided with the blades with different widths, the installation is convenient, the storage is facilitated, and the use cost is low.

Description

Pen knife

Technical Field

The utility model relates to the field of pens, in particular to a pen with blades with different widths capable of being replaced.

Background

In order to quickly remove the water gap protruding from the surface of the model part during the manual model making, a pen knife is generally used for cutting off the water gap of the part, and in addition, the appearance of the part is sometimes modified by the pen knife according to the requirements of a model producer. The blade with large width has good rigidity and long cutting edge, and is convenient for rapidly cutting off the water gap with larger size; the blade with small width is easier to control the force when cutting off the water gap with small size, and has strong trafficability, so that the part is more easily cut and trimmed or the internal structure is more easily cut and trimmed. However, the pen point of the traditional pen knife can only be provided with the blades with fixed widths, when the blades with different widths are needed, the pen holders of the corresponding pen knife can be matched, so that the more the types of the blades are, the more the number of the pen holders is, the storage is not facilitated, and the purchase cost of the pen knife with various specifications is high.

Disclosure of utility model

The utility model aims to provide a pen knife, the pen point of the same pen holder can be provided with blades with different widths, the installation is convenient, the storage is facilitated, and the use cost is low.

In order to achieve the above purpose, the utility model provides a pen knife, which comprises a pen holder and a knife blade, wherein one end of the pen holder is provided with a pen point, and one side of the pen point is provided with a clamping groove; the device also comprises a pressing block, wherein one side of the pressing block is provided with a clamping part which is in plug-in fit with the clamping groove; the blades comprise a first blade and a second blade, and the width of the first blade is larger than that of the second blade; a first accommodating cavity for installing a first blade is formed between one end surface of the clamping part and the end surface of the bottom of the clamping groove; the middle part of the bottom end surface of the clamping groove is provided with a second accommodating cavity for installing a second blade, and the width of the second accommodating cavity is smaller than that of the first accommodating cavity; the pressing block is provided with a blade pressing piece.

As a further improvement of the utility model, the blade pressing piece is a screw which is in threaded connection with the pressing block; one end of the screw is a pressing end for pressing on the side surface of the blade.

As a further improvement of the utility model, the clamping part and the clamping groove are of T-shaped structures.

As a further improvement of the utility model, the number of the second accommodating chambers is at least two and the second accommodating chambers are sequentially arranged along the direction away from the pressing block, and the width of each second accommodating chamber is sequentially reduced along the direction away from the pressing block.

As a further improvement of the utility model, the adjacent parts of the outer side surfaces of the pressing block and the pen point are in smooth transition.

As a further development of the utility model, the width of both the first blade and the first receiving cavity is adapted; the width of the second blade is matched with that of the second accommodating cavity.

Advantageous effects

Compared with the prior art, the pen knife has the advantages that:

1. Through set up briquetting and blade pressure piece on the nib of pen-holder, utilize the blade pressure piece can compress tightly the blade that is arranged in first accommodation chamber or second accommodation chamber, because first accommodation chamber and second accommodation chamber can adapt first blade and the second blade that the width is different respectively, need not to change whole pen-knife when using the blade of different width, pen-holder itself is general, reduces the pen-holder quantity that personnel need purchase, both reduced instrument purchase cost, also conveniently accomodate.

2. The pen point and the pressing block adopt split structures, so that the processing and forming of the first accommodating cavity or the second accommodating cavity are more convenient.

3. The blade pressing piece is a screw, and is convenient to screw by a tool and enable the blade pressing piece to press or loosen the blade.

4. The clamping part and the clamping groove are of T-shaped structures, and when the pressing end of the screw presses the side face of the blade, the screw drives the other side of the clamping part to be in close contact with the clamping groove due to the reaction force, so that the gland is prevented from shaking or even falling off.

5. When the quantity of second holds the chamber is at least two, its along keeping away from the direction of briquetting and arrange in proper order, can install the second blade of multiple different width as required, and the suitability further improves.

The utility model will become more apparent from the following description taken in conjunction with the accompanying drawings which illustrate embodiments of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is one of the perspective views of the pen knife of example 1;

FIG. 2 is a second perspective view of the pen knife of example 1;

FIG. 3 is a partial exploded view of the pen knife of example 1;

FIG. 4 is a top view of the pen knife of example 1 with only the second blade;

FIG. 5 is a split view of the tip and the compact of example 1;

FIG. 6 is a cross-sectional view of the pen knife of example 1 with only the second blade;

FIG. 7 is a top view of the nib of example 2.

Detailed Description

Embodiments of the present utility model will now be described with reference to the accompanying drawings.

Example 1

The embodiment of the utility model is shown in fig. 1 to 6, and the pen knife comprises a pen holder 1 and a blade, wherein one end of the pen holder 1 is provided with a pen point 2, and one side of the pen point 2 is provided with a clamping groove 21. Still include briquetting 3, briquetting 3 one side is equipped with joint portion 31, joint portion 31 and draw-in groove 21 grafting cooperation. The blades comprise a first blade 5 and a second blade 6, the first blade 5 being wider than the second blade 6. In this embodiment, the first blade 5 and the second blade 6 are each one piece. A first accommodating cavity 7 for mounting the first blade 5 is formed between one end surface of the clamping portion 31 and the bottom end surface of the clamping groove 21. The middle part of the bottom end surface of the clamping groove 21 is provided with a second accommodating cavity 22 for installing the second blade 6, and the width of the second accommodating cavity 22 is smaller than that of the first accommodating cavity 7. The pressing block 3 is provided with a blade pressing piece.

The first blade 5 is adapted to the width of both the first receiving cavities 7. The second blade 6 is adapted to the width of both the second receiving cavities 22.

The blade pressing piece is a screw 4, and the screw 4 is in threaded connection with the pressing block 3. One end of the screw 4 is a pressing end 41 for pressing against the side of the insert. In this embodiment, the number of screws 4 is two, so that the contact area between the pressing end 41 and the blade is increased, and the probability of sliding the blade out of the accommodating cavity is reduced.

The clamping portion 31 and the clamping groove 21 are of T-shaped structures, machining difficulty is low, and connection stability of the pressing block 3 and the first blade 5 is good.

The adjacent parts of the outer side surfaces of the pressing block 3 and the pen point 2 are in smooth transition, and uncomfortable feeling is not easy to generate when the pen is held.

When the pen is used, as the width of the first blade 5 is larger than that of the second blade 6, the first blade 5 and the second blade 6 can be simultaneously arranged on the pen point 2 of the pen knife, and the first blade 5 can be used for cutting model parts only by ensuring that the edge of the second blade 6 does not protrude out of the edge of the first blade 5. When the second blade 6 needs to be replaced to cut the model part, the screw 4 is unscrewed, the first blade 5 is taken out of the first accommodating cavity 7, the screw 4 is screwed again, and the pressing end 41 presses the second blade 6 into close contact with the bottom end surface of the second accommodating cavity 22, so that the second blade 6 can be fixed.

Example 2

The difference from embodiment 1 is that the number of the second accommodation chambers 22 is at least two and is sequentially arranged in a direction away from the compact 3, and the width of each second accommodation chamber 22 is sequentially reduced in a direction away from the compact 3. In this embodiment, as shown in fig. 7, the number of the second accommodating chambers 22 is two, and the second blades 6 with corresponding widths can be installed according to the needs through the two second accommodating chambers 22 with different widths, so that the applicability is wider.

The utility model has been described in connection with the preferred embodiments, but the utility model is not limited to the embodiments disclosed above, but it is intended to cover various modifications, equivalent combinations according to the essence of the utility model.

Claims

1. The pen knife comprises a pen holder (1) and a knife blade, and is characterized in that a pen point (2) is arranged at one end of the pen holder (1), and a clamping groove (21) is formed in one side of the pen point (2); the device also comprises a pressing block (3), wherein one side of the pressing block (3) is provided with a clamping part (31), and the clamping part (31) is in plug-in fit with the clamping groove (21); the blades comprise a first blade (5) and a second blade (6), the width of the first blade (5) is larger than that of the second blade (6); a first accommodating cavity (7) for installing the first blade (5) is formed between one end surface of the clamping part (31) and the bottom end surface of the clamping groove (21); the middle part of the bottom end surface of the clamping groove (21) is provided with a second accommodating cavity (22) for installing a second blade (6), and the width of the second accommodating cavity (22) is smaller than that of the first accommodating cavity (7); the pressing block (3) is provided with a blade pressing piece.

2. A pen knife according to claim 1, characterized in that the blade pressing member is a screw (4), the screw (4) being in threaded connection with the press block (3); one end of the screw (4) is a pressing end (41) for pressing against the side of the blade.

3. A pen knife according to claim 1, characterized in that the clamping part (31) and the clamping groove (21) are of T-shaped structure.

4. A pen knife according to claim 1 or 3, characterized in that the number of the second accommodation cavities (22) is at least two and arranged in sequence in a direction away from the press block (3), the width of each second accommodation cavity (22) decreasing in sequence in a direction away from the press block (3).

5. A pen knife according to claim 1, characterized in that the abutment of the pressure piece (3) with the outer side of the nib (2) is smoothly transited.

6. A pen knife according to claim 1, characterized in that the width of the first blade (5) is adapted to the width of both the first accommodation cavities (7); the width of the second blade (6) is adapted to the width of the second receiving cavity (22).