Dot matrix pen

Abstract

The dot matrix pen comprises a shell, a support and a pen core, a groove is formed in the middle of the outer side of the support, a strip-shaped groove is formed in the bottom of the groove, a connecting piece is arranged in the groove, one end of the connecting piece is connected with the pen core, the other end of the connecting piece is connected with a connecting rod, and the other end of the connecting rod is connected with a cross-shaped sliding piece. One end of the cross-shaped sliding piece is connected with a compression spring in a sleeved mode, and a limiting mechanism is arranged at the position, located above the strip-shaped groove, of the inner side of the support. According to the dot matrix pen, the pen core stretches out and draws back in a pressing mode, the problem that the pen cap is lost is solved, and meanwhile the dot matrix pen is opened and closed in the stretching-out and drawing-back process of the pen core so that the dot matrix pen can be started and closed.

Description

Technical Field

[0001] The invention relates to the technical field of dot matrix pens, in particular to a dot matrix pen. Background Art

[0002] The dot matrix pen, also known as the smart pen, uses infrared recognition technology, paper with dot matrix code points and infrared high-speed camera capture technology to synchronize the information on the paper and screen after writing on the paper.

[0003] The existing dot matrix pen usually adopts a structure in which the pen cap is separated from the pen barrel because many components need to be installed in the pen barrel. In actual application, the dot matrix pen is activated by taking off the pen cap. However, because the pen cap is separated from the pen barrel, it is easy to lose the pen cap and cause the dot matrix pen to be in the activated state, thus shortening the life cycle of the dot matrix pen and making it impossible to continue to use it, resulting in waste. Summary of the invention

[0004] In order to solve this technical defect in the prior art, the present invention discloses a dot matrix pen, including a shell, a bracket and a pen core, a groove is arranged in the middle part of the outer side of the bracket, a strip groove is arranged at the bottom of the groove, a connecting piece is arranged in the groove, one end of the connecting piece is connected to the pen core, the other end of the connecting piece is connected to a connecting rod, the other end of the connecting rod is connected to a cross-shaped slide, one end of the cross-shaped slide is sleeved with a compression spring, and a limiting mechanism is arranged on the inner side of the bracket above the strip groove.

[0005] Preferably, a cylindrical groove is provided on the upper end surface of the connecting piece, a square hole penetrating the connecting piece is provided at the end of the cylindrical groove, a square groove is provided on the lower end surface of the connecting piece connected to the square hole, and the square groove is connected to the square hole.

[0006] Preferably, the connecting member is further provided with an L-shaped connecting hole and an arc-shaped column head, wherein the arc-shaped column head is located on one side of the square groove of the connecting member, and the arc-shaped column head protrudes from the lower end surface of the connecting member and extends longitudinally.

[0007] Preferably, a through hole is provided at the center of the cross-shaped slide, and the through hole is used to connect one end of the connecting rod, and the other end of the connecting rod is connected to the L-shaped connecting hole.

[0008] Preferably, a cavity for sliding is provided at the tail of the bracket, the cross-shaped slide is located in the cavity for reciprocating motion, and a cylindrical tube is provided at the other end of the cross-shaped slide.

[0009] Preferably, a threaded ring is fixedly provided at the end of the bracket, and the threaded ring is used to install a spherical cap. A round hole is provided on the spherical cap, and a conical compression spring and a pressing column are installed in the spherical cap. A limited position edge is provided in the middle of the pressing column.

[0010] Preferably, a convex sliding groove is provided at the bottom of the cavity, and a core through groove and a connecting rod through groove are respectively provided on both sides of the groove on the bracket, and the convex sliding groove is connected to the connecting rod through groove.

[0011] Preferably, a switch is mounted on the bracket, and the switch comprises a housing, two spaced-apart connecting pieces, a V-shaped spring piece and a rotating tongue.

[0012] Preferably, the limiting mechanism is used to limit the clamping of the arc-shaped column head, and the side of the arc-shaped column head is provided with a bevel clamping joint adapted to the limiting mechanism.

[0013] Preferably, a pressure sensor is installed in the square hole.

[0014] In summary, the beneficial effects of the present invention include providing a dot matrix pen with a simple structure, which enables the dot matrix pen to extend and retract the pen core by pressing to solve the problem of the pen cap being lost, and at the same time, the dot matrix pen can be turned on and off during the extension and retraction of the pen core to start and close the dot matrix pen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the effect in an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the structural decomposition in the first embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the outer structure of the bracket in the first embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the connecting piece in the first embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the connecting piece in the first embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the connection structure in Embodiment 1 of the present invention;

[0022] Figure 7 This is a schematic diagram of the inner structure of the bracket in the first embodiment of the present invention;

[0023] Figure 8 It is a schematic diagram of the structure of the pressure sensor and the connecting spring in the first embodiment of the present invention;

[0024] Fig. 9 This is a schematic diagram of the support structure in Embodiment 1 of the present invention;

[0025] Fig.10 This is a schematic diagram of the support structure in Embodiment 1 of the present invention;

[0026] Fig.11 is a schematic diagram of a cross-shaped sliding member and a compression spring in the first embodiment of the present invention;

[0027] Fig.12 Schematic diagram of a switch in Embodiment 1 of the present invention;

[0028] Fig.13 Schematic diagram of the internal structure of the switch in the first embodiment of the present invention;

[0029] In the figure, the housing 1, the bracket 2, the refill 3, the connecting piece 4, the connecting rod 5, the cross-shaped slide 6, the compression spring 7, the limit mechanism 8, the pen clip 9, and the battery compartment 10;

[0030] Opening 11;

[0031] Switch 20;

[0032] Shell 201, connecting piece 202, V-shaped spring piece 203, rotating tongue 204;

[0033] The groove 21, the strip groove 22, the cavity 23, the threaded ring 24, the spherical cap 25, the conical compression spring 26, the pressing column 27, the pen core through groove 28, and the connecting rod through groove 29;

[0034] Convex slide groove 231, circular hole 251, limiting edge 271;

[0035] Columnar groove 41, square hole 42, square groove 43, L-shaped connecting hole 44, arc column head 45;

[0036] Card edge 411;

[0037] Pressure sensor 421, connecting spring 422;

[0038] Through hole 61 and cylindrical tube 62. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Example 1: Reference Figure 1-13 As shown, the present invention discloses a dot matrix pen, including a shell 1, a bracket 2 and a pen core 3, a groove 21 is arranged at the middle part of the outer side of the bracket 2, a strip groove 22 is arranged at the bottom of the groove 21, a connecting piece 4 is arranged in the groove 21, a protruding edge is arranged inwardly at the edge of the groove 21, and outer edges are also arranged on both sides of the corresponding connecting piece 4 to realize the axial sliding of the connecting piece 4 in the groove 21; one end of the connecting piece 4 is connected to the pen core 3, the other end of the connecting piece 4 is connected to a connecting rod 5, the other end of the connecting rod 5 is connected to a cross-shaped slide 6, one end of the cross-shaped slide 6 is sleeved with a compression spring 7, and a limiting mechanism 8 is arranged on the inner side of the bracket 2 above the strip groove 22.

[0043] By applying a thrust to the cross-shaped slide 6 , the cross-shaped slide 6 moves forward, thereby driving the connecting rod 5 to realize the movement of the connecting member 4 , and further driving the pen core 3 to extend.

[0044] When the refill 3 is in the extended state, the limiting mechanism 8 limits the connecting member 4, thereby maintaining the refill 3 in the extended state.

[0045] When a thrust is applied to the cross-shaped slide 6 again, the connecting rod 5 is driven to achieve a further slight movement of the connecting member 4 to release the restriction of the limit mechanism 8, so that the cross-shaped slide 6 can move back under the action of the compression spring 7, thereby achieving the retraction of the pen core 3.

[0046] Preferably, the upper end surface of the connecting member 4 is provided with a cylindrical groove 41, and the cylindrical groove 41 is used to plug the pen core 3, and the two side edges of the cylindrical groove 41 are provided with protruding clamping edges 411 to increase the stability of the pen core 3, and the end of the cylindrical groove 41 is provided with a square hole 42 that penetrates the connecting member 4, and the lower end surface of the connecting member 4 connected to the square hole 42 is provided with a square groove 43, and the square groove 43 is connected to the square hole 42, and a pressure sensor 421 is movably installed in the square hole 42 and abuts against the tail of the pen core 3. The pressure sensor 421 is connected to a connecting spring piece 422, and the connecting piece 422 is fixed in the square groove 43, and the connecting spring piece 422 is used to give support force to the pressure sensor 421 to achieve relative fixation of the pressure sensor 421 in the square hole 42. When the pen core 3 is writing, the tail of the pen core 3 is more sensitive to the pressure detection of the pressure sensor 421, and the detection distortion of the pressure sensor 421 will not be caused by excessive force when writing.

[0047] The connecting piece 422 is connected to the circuit board of the dot matrix pen through a wire. It should be pointed out that the bracket 2 of the dot matrix pen of the present application is provided with a battery slot 201 and a clamping column for clamping the built-in electronic components, which are all prior arts and will not be described in detail. At the same time, the electronic components involved in the present application only need to make adjustments to their sizes for suitability.

[0048] Preferably, the connecting member 4 is further provided with an L-shaped connecting hole 44 and an arc-shaped column head 45 . The arc-shaped column head 45 is located on one side of the square groove 43 of the connecting member 4 . The arc-shaped column head 45 protrudes from the lower end surface of the connecting member 4 and extends longitudinally.

[0049] Preferably, a through hole 61 is provided at the center of the cross-shaped slide 6 , and the through hole 61 is used to connect one end of the connecting rod 5 , and the other end of the connecting rod 5 is connected to the L-shaped connecting hole 44 .

[0050] It should be noted that both ends of the connecting rod 5 are bent at right angles.

[0051] Preferably, a switch 20 is installed on the bracket 2, and the switch 20 includes a housing 201, two spaced connecting pieces 202, a V-shaped spring piece 203 and a rotating tongue 204; the V-shaped spring piece 203 is arranged in the rotating tongue 204, and one end of the V-shaped spring piece 203 abuts against the other connecting piece 202.

[0052] The connecting member 4 slides stably in the groove 21, thereby driving the arc-shaped column head 45 to slide in the strip groove 22. As the arc-shaped column head 45 slides, the rotating tongue 204 is pressed to rotate, so that the other end of the rotating tongue 204 contacts one of the connecting pieces 202, thereby realizing the connection between the two spaced connecting pieces 202. The two spaced connecting pieces 202 are connected to the circuit board through wires, so that the dot matrix pen can be turned on, and the power-on is realized at the same time as the pen core is extended.

[0053] Preferably, a cavity 23 for sliding is provided at the tail of the bracket 2, and the cross-shaped slide 6 is located in the cavity 23 and reciprocates. The sliding manner of the cross-shaped slide 6 in the cavity 23 makes the retraction of the pen core 3 smoother, and a cylindrical tube 62 is provided at the other end of the cross-shaped slide 6.

[0054] Preferably, a threaded ring 24 is fixedly provided at the end of the bracket 2, and the threaded ring 24 is used to install a spherical cap 25. A round hole 251 is provided on the spherical cap 25. A conical compression spring 26 and a pressing column 27 are installed in the spherical cap 25, and a limited position edge 271 is provided in the middle of the pressing column 27.

[0055] One end of the conical compression spring 26 abuts against the side wall of the threaded ring 24 , and the other end abuts against the limiting edge 271 of the pressing column 27 , and the spherical cap 25 is screwed onto the threaded ring 24 to achieve fixed installation.

[0056] By pressing the pressing column 27 with a finger, the pressing column 27 extends into the cylindrical tube 62 to push the cross-shaped slide 6 to slide in the cavity 23, thereby driving the connecting rod 5 to realize the movement of the connecting member 4, and then driving the pen core 3 to extend. Then, after releasing the finger, the pressing column 27 recovers under the action of the conical compression spring 26; when the pen core 3 needs to be retracted, it is only necessary to press the pressing column 27 again.

[0057] The limiting mechanism 8 is used to limit the clamping of the arc-shaped column head 45 , and the side of the arc-shaped column head 45 is provided with a bevel clamping joint adapted to the limiting mechanism 8 .

[0058] Among them, the limiting mechanism 8 is a prior art and will not be described in detail. In order to fix the limiting mechanism 8 when the pen core 3 is extended and release the limit by pressing again, a beveled clamping joint adapted to the limiting mechanism 8 is provided on the side of the arc-shaped column head 45.

[0059] Preferably, a convex sliding groove 231 is provided at the bottom of the cavity 23 , and a lead through groove 28 and a connecting rod through groove 29 are respectively provided on both sides of the groove 21 on the bracket 2 , and the convex sliding groove 231 is connected to the connecting rod through groove 29 .

[0060] The convex part of the convex sliding groove 231 is suitable for the sliding of the connecting rod 5, and the other part is suitable for the sliding of the connected pen clip 9. The pen clip 9 is clamped on the cross-shaped sliding piece 6, and the housing 1 adapted thereto is also provided with an opening 11.

[0061] In summary, the beneficial effects of the present invention include providing a dot matrix pen with a simple structure, which enables the dot matrix pen to extend and retract the pen core by pressing to solve the problem of the pen cap being lost, and at the same time, the dot matrix pen can be turned on and off during the extension and retraction of the pen core to start and close the dot matrix pen.

[0062] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

[0063] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dot matrix pen, comprising a housing (1), a bracket (2) and a pen core (3), characterized in that: A groove (21) is provided in the middle of the outer side of the bracket (2), a strip groove (22) is provided at the bottom of the groove (21), a connecting piece (4) is provided in the groove (21), one end of the connecting piece (4) is connected to the pen core (3), the other end of the connecting piece (4) is connected to a connecting rod (5), the other end of the connecting rod (5) is connected to a cross-shaped sliding piece (6), one end of the cross-shaped sliding piece (6) is sleeved with a compression spring (7), and a limiting mechanism (8) is provided on the inner side of the bracket (2) above the strip groove (22).

2. A dot matrix pen according to claim 1, characterized in that: The upper end surface of the connecting member (4) is provided with a cylindrical groove (41), the end of the cylindrical groove (41) is provided with a square hole (42) penetrating the connecting member (4), and the lower end surface of the connecting member (4) connected to the square hole (42) is provided with a square groove (43), and the square groove (43) is connected to the square hole (42).

3. A dot matrix pen according to claim 2, characterized in that: The connecting member (4) is also provided with an L-shaped connecting hole (44) and an arc-shaped column head (45). The arc-shaped column head (45) is located on one side of the square groove (43) of the connecting member (4). The arc-shaped column head (45) protrudes from the lower end surface of the connecting member (4) and extends longitudinally.

4. A dot matrix pen according to claim 3, characterized in that: A through hole (61) is provided at the center of the cross-shaped sliding member (6), and the through hole (61) is used to connect one end of the connecting rod (5), and the other end of the connecting rod (5) is connected to the L-shaped connecting hole (44).

5. A dot matrix pen according to claim 1, characterized in that: The rear part of the support (2) is provided with a cavity (23) for sliding, the cross-shaped slide (6) is located in the cavity (23) and reciprocates, and the other end of the cross-shaped slide (6) is provided with a cylindrical barrel (62).

6. A dot matrix pen according to claim 5, characterized in that: A threaded ring (24) is fixedly provided at the end of the bracket (2), and the threaded ring (24) is used to install a spherical cap (25). A round hole (251) is provided on the spherical cap (25), and a conical compression spring (26) and a pressing column (27) are installed in the spherical cap (25). A limiting edge (271) is provided in the middle of the pressing column (27).

7. A dot matrix pen according to claim 6, characterized in that: A convex sliding groove (231) is provided at the bottom of the cavity (23), and a lead through groove (28) and a connecting rod through groove (29) are respectively provided on both sides of the groove (21) on the bracket (2), and the convex sliding groove (231) is connected to the connecting rod through groove (29).

8. The dot matrix pen according to claim 3, characterized in that: A switch (20) is mounted on the bracket (2), and the switch (20) comprises a housing (201), two spaced-apart connecting sheets (202), a V-shaped spring sheet (203) and a rotating tongue (204).

9. A dot matrix pen according to claim 8, characterized in that: The limiting mechanism (8) is used to limit the clamping of the arc-shaped column head (45), and the side of the arc-shaped column head (45) is provided with a bevel clamping joint adapted to the limiting mechanism (8).

10. The dot matrix pen according to claim 1, characterized in that: A pressure sensor (421) is installed in the square hole (42).

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