CN218214079U

CN218214079U - Electronic pen with detachable refill

Info

Publication number: CN218214079U
Application number: CN202222386197.XU
Authority: CN
Inventors: 黄启录; 卢青
Original assignee: Shenzhen Zhicheng Lichuang Technology Co ltd
Current assignee: Shenzhen Zhicheng Lichuang Technology Co ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2023-01-03
Anticipated expiration: 2032-09-07

Abstract

The embodiment of the utility model discloses refill detachable electronic pen, including pen-holder, refill, nib cap and locate main support and pressure sensor in the pen-holder, be equipped with in the pen-holder and be used for the friction sleeve of cover on the refill, friction sleeve inner wall is equipped with the bump, is equipped with the lever that utilizes lever principle transmission refill to receive pressure around a pivot pivoted on the main support, and pressure sensor locates on the main support and corresponds the department with lever one end, the lever other end when writing with the friction sleeve contact, is equipped with the pressure module with lever pressure transmission to pressure sensor in the pen-holder. The utility model discloses utilize the friction sleeve to transmit the refill pressure when writing, can adapt to the refill of different length, convenience of customers changes, simple structure, convenient assembling, it is with low costs.

Description

Electronic pen with detachable refill

Technical Field

The utility model relates to an official working electron technical field especially relates to a refill detachable electronic pen.

Background

The existing electronic touch pen is more and more intelligent, the existing electronic touch pen can normally write on code spreading paper by using a common ball pen, meanwhile, a camera in the pen can be used for shooting a track of a pen point, an electronic document is synchronously processed, and meanwhile, the pressure contacted by the pen point is transferred to a pressure element in the electronic touch pen. However, the conventional electronic touch pen generally collects the pressure of the pen point contact in the following two ways:

1. the pressure element is correspondingly arranged at the tail of the pen core so as to detect the writing pressure transmitted from the tail of the pen core. However, this method requires the length of the pen core, and if the user replaces pen cores with different lengths, the detection cannot be carried out.

2. The pressure element is correspondingly arranged at the front end of the refill so as to detect the writing pressure transmitted by the convex ring at the front end of the refill. However, the manner results in increased front-end devices of the electronic touch pen, and the electronic touch pen has a complex structure, so that the electronic touch pen is too bulky and not beautiful, and writing of a user is affected.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem that will solve provides a refill detachable electronic pen to simplify the structure, conveniently change the refill of different length.

In order to solve the technical problem, the embodiment of the utility model provides a refill detachable electronic pen, including the pen-holder, the refill, main support and pressure sensor in the pen-holder are located to the nib cap, be equipped with in the pen-holder and be used for the friction sleeve of cover on the refill, friction sleeve inner wall is equipped with the bump, be equipped with on the main support around a pivot pivoted utilize lever principle to transmit the lever that the refill receives pressure, pressure sensor locates on the main support and corresponds the department with lever one end, the lever other end when writing with the friction sleeve contact, be equipped with in the pen-holder and transmit the pressure module to pressure sensor with lever pressure.

Furthermore, the pressure module comprises a pressure bearing seat, and the pressure bearing seat is contacted with one side of one end of the lever during writing; the pressure-bearing seat is provided with a telescopic rod capable of telescopic motion, the front end of the telescopic rod is correspondingly contacted with the pressure sensor, and the telescopic rod is sleeved with a pressure-bearing spring for preventing the telescopic rod from being over-pressurized; a limiting block is convexly arranged on the telescopic rod, and a limiting groove corresponding to the limiting block is arranged on the pressure bearing seat; one end of the pressure-bearing spring acts on the pressure-bearing seat, and the other end acts on the telescopic rod.

Further, the pre-pressure of the pressure-bearing spring is F2, and the following formula is satisfied:

F1> F2*(L2/L1)；

f1 is the maximum static friction force between the refill and the friction sleeve, L1 is the force arm of the friction sleeve acting on the lever, and L2 is the force arm of the pressure bearing seat acting on the lever.

Furthermore, the front limiting part and the rear limiting part are respectively arranged on the main support corresponding to the front end and the rear end of the friction sleeve.

Furthermore, contact points are convexly arranged at the contact part of the lever and the pressure bearing seat and the contact part of the lever and the friction sleeve.

Further, a gap is reserved between the pen point cap and the pen core.

The beneficial effects of the utility model are that: the utility model discloses utilize the friction sleeve to transmit the refill pressure when writing, can adapt to the refill of different length, convenience of customers changes, simple structure, convenient assembling, it is with low costs.

Drawings

Fig. 1 is a front view of an electronic pen with a detachable cartridge according to an embodiment of the present invention.

Fig. 2 is a sectional view at B-B in fig. 1.

Fig. 3 is an internal structure view of the electronic pen with a detachable cartridge according to the embodiment of the present invention.

Fig. 4 isbase:Sub>A cross-sectional view atbase:Sub>A-base:Sub>A in fig. 3.

Fig. 5 is a sectional view at C-C in fig. 4.

Fig. 6 is a perspective view of the pressure module according to the embodiment of the present invention.

Fig. 7 is a cross-sectional view of a pressure module in accordance with an embodiment of the present invention.

Figure 8 is an exploded view of a main support of an embodiment of the present invention.

Fig. 9 is a perspective view of a friction sleeve according to an embodiment of the present invention.

Fig. 10 is a bottom view of a friction sleeve according to an embodiment of the present invention.

Description of the reference numerals

The pen comprises a salient point 1, a pen holder 10, a friction sleeve 11, a lever 12, a rotating shaft 13, a pressure bearing seat 14, an expansion link 15, a pressure bearing spring 16, a limiting block 17, a limiting groove 18, a counter sink 19, a pen core 20, a convex ring 21, a pen tip cap 30, a main support 40, a front limiting part 41, a rear limiting part 42 and a pressure sensor 50.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict, and the present invention is further described in detail with reference to the accompanying drawings and specific embodiments.

In the embodiment of the present invention, if there is a directional indication (such as up, down, left, right, front, back \8230;) only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawing), if the specific posture is changed, the directional indication is changed accordingly.

In addition, the descriptions of the first, second, etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature.

Referring to fig. 1 to 10, an electronic pen with a detachable cartridge according to an embodiment of the present invention includes a pen holder, a cartridge, a pen tip cap, a main support and a pressure sensor disposed in the pen holder.

The pen holder is internally provided with a friction sleeve sleeved on the pen core, and the inner wall of the friction sleeve is provided with salient points. The inner diameter of the friction sleeve is larger than the outer diameter of the refill, and the inner diameter of the convex point is smaller than the outer diameter of the refill. The utility model discloses can compatible various length's refill.

A lever is arranged on the main support and rotates around a rotating shaft, and the pressure borne by the pen core is transmitted by utilizing the lever principle. The pressure sensor is arranged at the position, corresponding to one end of the lever, of the main support, the other end of the lever is in contact with the friction sleeve when writing, and a pressure module for transmitting the pressure of the lever to the pressure sensor is arranged in the pen holder. The utility model discloses utilize the lever, can enlarge writing pressure.

After the friction sleeve is assembled, the lever is close to the pressure module but does not have an interaction force, the lever is close to the friction sleeve but does not have an interaction force, and the friction sleeve and the main support keep a gap.

As an embodiment, the pressure module includes a pressure bearing seat. When the electronic pen with the detachable refill writes, the pressure bearing seat is contacted with one side of one end of the lever; the pressure-bearing seat is provided with a telescopic rod capable of stretching back and forth, the front end of the telescopic rod is correspondingly contacted with the pressure sensor, and the telescopic rod is sleeved with a pressure-bearing spring for preventing the telescopic rod from being over-pressurized; the telescopic rod is convexly provided with a limiting block, and the pressure-bearing seat is provided with a limiting groove corresponding to the limiting block; one end of the pressure-bearing spring acts on the pressure-bearing seat, and the other end acts on the telescopic rod. The pressure module prevents the appearance of excessive pressure, protects pressure sensor.

As an embodiment, the pre-pressure F2 of the pressure-bearing spring satisfies the following formula:

F1> F2*(L2/L1)；

As an implementation mode, the front limiting part and the rear limiting part are respectively arranged on the main support corresponding to the front end and the rear end of the friction sleeve.

As an implementation mode, contact points are convexly arranged at the contact part of the lever and the pressure bearing seat and at the contact part of the lever and the friction sleeve. The contact points make L1 and L2 more accurate.

In one embodiment, a gap is left between the pen tip cap and the pen core.

The utility model discloses a theory of operation does:

the ball-point pen refill is pressed in, the friction sleeve is provided with salient points which are in interference fit with the periphery of the refill, when the refill is inserted into the friction sleeve, the maximum static friction force between the refill and the friction sleeve is set to be F1, the pre-pressure of the pressure-bearing spring is F2, the insertion force of the refill is F, the supporting force of the pressure module to the lever is N, and F1> F2 (L2/L1) is set. When the refill inserting force F is large enough, F > F2 (L2/L1), the pressure module is compressed, the lever is deflected, the pressure module is partially compressed, and the friction sleeve has a clearance with both ends of the main bracket. In the middle of the process, the refill is not inserted into and penetrates through the friction sleeve;

continuously applying force to press the refill in, so that F (refill inserting force) > F2 (maximum static friction force of the friction sleeve) until the friction sleeve is jacked by the main support, the refill is pressed into the friction sleeve, and a convex ring at the front end of the refill is blocked by a sinking platform at the front end of the penholder;

releasing the pen core, and bouncing the friction sleeve by the pressure module; at the moment, the pen core and the friction sleeve do not move relatively; gaps are kept between the two ends of the friction sleeve and the main support, and gaps are kept between a convex ring at the front end of the refill and a sinking platform at the front end of the pen holder;

the pen point cap is screwed on, and a gap is reserved between the pen point cap and the pen core, so that the phenomenon that the pen point cap is deadly jacked due to errors is avoided.

When the pen writes on paper, the pen core is normally written when the stress of the pen core is small F2 (the pre-pressure of the pressure module), and the pen core does not retract. And increasing the writing pressure until the pen refill step is tightly attached to the pen point sinking platform, and at the moment, the friction sleeve is also tightly attached to the main support. In the process, the relative position of the friction sleeve and the pen core is not changed. After the pen is lifted, pressure is not applied to the pen point, and the pressure module enables the pen core to reset. The utility model discloses a pressure module realizes that the refill stroke resets.

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 alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a refill detachable electronic pen, including the pen-holder, the refill, nib cap and locate main support and pressure sensor in the pen-holder, a serial communication port, be equipped with in the pen-holder and be used for the friction sleeve of cover on the refill, friction sleeve inner wall is equipped with the bump, be equipped with on the main support around a pivot pivoted utilize lever principle to transmit the lever that the refill receives pressure, pressure sensor locates on the main support and corresponds the department with lever one end, the lever other end contacts with the friction sleeve when writing, be equipped with in the pen-holder and transmit the pressure module on pressure sensor with lever pressure.

2. The electronic pen with the detachable refill according to claim 1, wherein the pressure module includes a pressure bearing seat which is in contact with one side of one end of the lever when writing; the pressure bearing seat is provided with a telescopic rod which can do telescopic motion, the front end of the telescopic rod is correspondingly contacted with the pressure sensor, and the telescopic rod is sleeved with a pressure bearing spring which can prevent the telescopic rod from being over-pressed; a limiting block is convexly arranged on the telescopic rod, and a limiting groove corresponding to the limiting block is arranged on the pressure bearing seat; one end of the pressure-bearing spring acts on the pressure-bearing seat, and the other end of the pressure-bearing spring acts on the telescopic rod.

3. The electronic pen with the detachable refill according to claim 2, wherein the pre-pressure of the pressure-bearing spring is F2, and the following formula is satisfied:

F1> F2*(L2/L1)；

f1 is the maximum static friction force between the refill and the friction sleeve, L1 is the force arm acted on the lever by the friction sleeve, and L2 is the force arm acted on the lever by the pressure bearing seat.

4. The electronic pen with the detachable refill according to claim 1, wherein the front and rear ends of the main holder corresponding to the friction sleeve are respectively provided with a front stopper and a rear stopper.

5. The electronic pen with the detachable refill according to claim 1, wherein the contact point is convexly provided at a contact position of the lever with the pressure bearing seat and at a contact position of the lever with the friction sleeve.

6. An electronic pen with a detachable cartridge as claimed in claim 1, wherein a gap is left between the nib cap and the cartridge.