CN-224224803-U - Press type pen with self-locking function

CN224224803UCN 224224803 UCN224224803 UCN 224224803UCN-224224803-U

Abstract

The utility model discloses a pressing pen with a self-locking function, which comprises a pen holder, a pen core, a button, a transmission rod, a spring and a telescopic locking mechanism, wherein the button is movably arranged at the rear end of the pen holder, the pen core and the transmission rod are movably arranged in the pen holder, the telescopic locking mechanism is connected between the rear end of the pen core and the front end of the transmission rod, the rear end of the transmission rod is connected with the button, the spring is abutted between the pen core and the pen holder, the transmission rod can be driven to rotate by the button, a baffle plate is arranged at the rear side position of an inner cavity of the pen holder corresponding to the telescopic locking mechanism, a through groove which is movably penetrated with the transmission rod in a matched manner is arranged on the baffle plate, the transmission rod comprises a limiting part arranged at the side part, the limiting part of the transmission rod can pass through the through groove along the front and rear directions when the transmission rod is in other rotating positions, and the limiting part and the baffle plate form limiting fit along the front and rear directions when the transmission rod is in other rotating positions. The pen has a self-locking function, can lock when the pen is in a core-shrinking state, and prevents the pen point from being extruded out due to false pressing.

Inventors

CUI YUMING
HUANG CHAOSHENG

Assignees

温州市爱好笔业有限公司

Dates

Publication Date: 20260512
Application Date: 20250416

Claims (10)

1. The pressing pen with the self-locking function comprises a pen holder, a pen core, a button, a transmission rod, a spring and a telescopic locking mechanism, wherein the button is movably arranged at the rear end of the pen holder, the pen core and the transmission rod are movably arranged in the pen holder, the telescopic locking mechanism is connected between the rear end of the pen core and the front end of the transmission rod, the rear end of the transmission rod is connected with the button, and the spring is propped between the pen core and the pen holder.
2. The pressing pen with self-locking function according to claim 1, wherein the pressing pen comprises a pen holder, an opening communicated with the inner cavity of the pen holder is formed in the side portion of the pen holder, the pen holder comprises a connecting end movably inserted into the inner cavity of the pen holder along the opening, the connecting end comprises a sleeving hole, the transmission rod is movably arranged in the sleeving hole in a penetrating mode, the transmission rod can be driven by the button to move forwards relative to the connecting end, protruding blocks are arranged on the inner walls of two opposite sides of the sleeving hole, guide inclined planes in sliding contact with the two protruding blocks respectively are arranged on two sides of the transmission rod, the transmission rod drives the pen holder to move towards the direction approaching to the pen holder through one group of the protruding blocks and the guide inclined planes when moving forwards at a specified rotating position, the transmission rod drives the pen holder to move towards the direction far away from the pen holder through the other group of the protruding blocks and the guide inclined planes when moving backwards at the specified rotating position, and the partition plate is arranged at the front side position of the connecting end of the corresponding pen holder.
3. The knock pen with self-locking function according to claim 2, wherein the driving rod comprises a rod body, a first protruding wall is provided on one side of the rod body in an outward protruding manner, a second protruding wall is provided on the other side of the rod body in an outward protruding manner, and the two guiding inclined planes are respectively formed by the rear end face of the first protruding wall and the front end face of the second protruding wall.
4. The knock pen with self-locking function according to claim 3, wherein the through groove comprises a base hole and two notches symmetrically connected to two sides of the base hole, the base hole and the rod body are matched and guided to move, the two notches are respectively matched and movably penetrated with the first convex wall and the second convex wall, the rod body is provided with a cylindrical outer peripheral surface, two sides of the rod body are correspondingly provided with notches, the first convex wall and the second convex wall are respectively arranged in the notches on two sides of the rod body, the base hole is round, and the base hole and the outer peripheral surface of the rod body are matched in a moving and rotating mode along the front-back direction.
5. The knock pen with self-locking function according to claim 3, wherein the limiting portion is formed by a first protruding wall, and a front end surface of the first protruding wall and a rear side of the partition are matched and limited to inhibit forward movement of the transmission rod.
6. The knock pen with self-locking function according to claim 1, wherein the telescopic locking mechanism comprises a front tooth part, a rear tooth part and a guide rail arranged on the inner wall of the pen holder, the front tooth part, the rear tooth part and the guide rail form a connection fit allowing the front tooth part, the rear tooth part and the guide rail to move forwards and backwards relative to the pen holder but prohibiting the front tooth part from rotating relative to the pen holder, the rear end of the pen core is in abutting fit with the front tooth part, the front end of the transmission rod comprises a connecting column, the connecting column and the rear tooth part form a limit fit along the front-rear direction and a relatively rotatable connection fit, and the rear tooth part and the partition plate form a limit fit along the front-rear direction.
7. The snap pen with self-locking function according to claim 6, wherein the rear tooth part comprises a central hole, the connecting column comprises an annular groove which is embedded with the inner edge of the central hole in a matched mode, a protrusion is arranged in the annular groove, a movable groove is arranged at the inner edge of the central hole, the protrusions are matched and limited at two ends of the movable groove in the circumferential direction, and the protrusions move circumferentially within the limit range of the movable groove.
8. The snap pen with self-locking function according to claim 7, wherein the transmission rod is located at a predetermined rotational position when the protrusion is engaged with one end of the movable groove in the circumferential direction, and is located at other rotational positions when the protrusion is engaged with the other end of the movable groove in the circumferential direction.
9. The knock pen with self-locking function according to claim 6, wherein the front tooth part comprises a center hole, the front tooth part is sleeved on the connecting post through the center hole and can move back and forth and rotate along the connecting post, and the front end of the connecting post is provided with an anti-drop part matched with the front tooth part.
10. The knock pen with self-locking function according to claim 1, wherein the pen holder and the push button are provided with alignment marks for prompting the locked and unlocked states in a matched manner.

Description

Press type pen with self-locking function Technical Field The utility model relates to a pressing pen with a self-locking function. Background The existing pressing type pen tool generally comprises a pen holder, a pen core, a telescopic locking mechanism, a button, a spring, a pen clamp and other components, wherein the pen core and the telescopic locking mechanism are arranged in the pen holder, the telescopic locking mechanism is linked with the pen core and the button, the spring is arranged between the front end of the pen core and the pen holder, the telescopic locking mechanism generally comprises a front tooth component, a rear tooth component and a guide rail arranged on the inner wall of the pen holder, the guide rail, the front tooth component and the rear tooth component form locking fit, the pen core can be driven to extend out of the front end of the pen holder and be kept in an extending state by alternately pressing the button, or the pen core is driven to retract into the pen holder, the pen clamp is generally arranged on the side part of the pen holder, and the pen clamp is conveniently fixed on clothes or books. When the existing pressing pen is placed in a bag for carrying, the pen point possibly protrudes due to extrusion of other articles in the bag by the button, so that other articles such as paper and clothes in the bag are polluted, and meanwhile, the pen point is possibly damaged in the friction and collision processes with other articles, so that the writing function is affected. Disclosure of utility model In order to overcome the defects in the prior art, the utility model provides a pressing pen with a self-locking function, which can lock when the pen is in a core-shrinking state and prevent a pen point from being extruded due to false pressing. The utility model relates to a pressing type pen with a self-locking function, which comprises a pen holder, a pen core, a button, a transmission rod, a spring and a telescopic locking mechanism, wherein the button is movably arranged at the rear end of the pen holder, the pen core and the transmission rod are movably arranged in the pen holder, the telescopic locking mechanism is connected between the rear end of the pen core and the front end of the transmission rod, the rear end of the transmission rod is connected with the button, the spring is abutted between the pen core and the pen holder, the transmission rod can be driven to rotate by the button, a baffle plate is arranged at the rear side position of an inner cavity of the pen holder corresponding to the telescopic locking mechanism, a through groove which is movably penetrated with the transmission rod in a matched manner is arranged on the baffle plate, the transmission rod comprises a limiting part arranged at the side part, the limiting part of the transmission rod can pass through the through groove in the front-rear direction when the transmission rod is in the specified rotation position, and the limiting part and the baffle plate form limiting fit in the front-rear direction when the transmission rod is in other rotation positions, and the forward movement of the transmission rod is prevented. When the pen is in the contracted state, the button can drive the transmission rod to rotate, so that the transmission rod can rotate to other rotation positions, and the limiting part and the partition plate form limiting fit, so that the transmission rod can not be pressed forward to move, the pen can not be pressed out of the core by mistake when the pen is placed in the bag, other objects in the bag can not be polluted by ink, and the pen point (namely the front end of the pen core) can not be damaged. Further, the pen holder is further provided with an opening communicated with the inner cavity of the pen holder, the pen holder comprises a connecting end movably inserted in the inner cavity of the pen holder along the opening, the connecting end comprises a sleeving hole, the transmission rod is movably arranged in the sleeving hole in a penetrating mode, the transmission rod can be driven by the button to move forwards relative to the connecting end, protruding blocks are arranged on the inner walls of two opposite sides of the sleeving hole, guide inclined planes which are in sliding contact with the two protruding blocks respectively are arranged on two sides of the transmission rod, the protruding blocks are preferably provided with arc-shaped contact surfaces, the sliding contact effect of the protruding blocks and the guide inclined planes is improved, the transmission rod drives the pen holder to move towards the direction close to the pen holder when moving forwards at a specified rotating position, the transmission rod is driven by the other group of the protruding blocks and the guide inclined planes to move towards the direction far away from the pen holder when moving backwards at the specified rotating position, the pen holder is released, further the pen hold