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 in a sliding mode, an arc-shaped column head is arranged at one end of the connecting piece, and the arc-shaped column head protrudes out of the lower end face of the connecting piece; the sliding block slides in the strip-shaped groove; a switch is arranged on the inner side of the support in front of the strip-shaped groove, and the arc-shaped column head is used for closing the switch; the switch comprises a shell, two spaced connecting sheets, a V-shaped elastic sheet and a rotating tongue; one end of the connecting piece is connected with the refill, the other end of the connecting piece is connected with a connecting rod, a refill through groove and a connecting rod through groove are formed in the positions, located on the two sides of the groove, of the support respectively, the refill through groove and the connecting rod through groove are used for axial advancing of the refill and the connecting rod respectively, and the other end of the connecting rod is connected with a pressing mechanism; the dot matrix pen is simple in structure, the pen core of the dot matrix pen stretches out and draws back in a pressing mode so as to solve the problem that the pen cap is lost, and meanwhile the dot matrix pen is turned on and turned off in the stretching-out and drawing-back process of the pen core so that the dot matrix pen can be turned on and turned off.

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, the dot matrix pen is always in the activated state when the pen cap is lost, which shortens the life cycle of the dot matrix pen and makes 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, comprising a shell, a bracket and a pen core, wherein a groove is arranged on the middle part of the outer side of the bracket, a pen core groove is connected with the groove, the pen core groove extends to the front end of the bracket, a slider is slidably arranged in the groove, and the slider is connected to a sliding assembly;

[0005] The sliding assembly comprises a sliding sleeve, a sliding rod and an L-shaped driving rod, and the end of the L-shaped driving rod is set as an inclined surface;

[0006] The housing is also sleeved with a ring sleeve, and a driving tooth is arranged in the middle of the ring sleeve for driving the L-shaped driving rod.

[0007] Preferably, the sliding sleeve is adapted to the bracket and slides on the outer side of the bracket;

[0008] The sliding block is fixedly connected to the inner side of the sliding sleeve through a connecting column, and the L-shaped driving rod is fixedly connected to the outer side of the sliding sleeve.

[0009] Preferably, both side ends of the sliding sleeve are fixedly connected to the sliding rod, both ends of the sliding rod are fixedly provided with circular end caps, a disc is sleeved on the sliding rod, and a compression spring is provided between the disc and the end cap.

[0010] Preferably, U-shaped parts for receiving the sliding rod are symmetrically arranged at intervals on both sides of the bracket.

[0011] Preferably, the bracket is symmetrically provided with spaced-apart limiting columns on both sides, the bracket is provided with a head at the front end, and the bracket is provided with a thread at the rear end and is screwed with a fastening cap.

[0012] Preferably, the shell includes a first shell and a second shell, one end of the first shell and the second shell is convex-shaped, and an opening is provided at the convex-shaped portion of the first shell.

[0013] Preferably, the driving teeth include four groups of teeth, and the teeth include a first groove and a second groove, the first groove has a first inclined surface and a first vertical surface on both sides, and the second groove has a second inclined surface and a second vertical surface on both sides.

[0014] Preferably, the depth of the second groove is shallower than that of the first groove.

[0015] Preferably, a semi-cylindrical groove is provided on the upper end surface of the slider, a square hole penetrating the slider is provided at the end of the semi-cylindrical groove, and a circular limiting groove is provided at the bottom of the semi-cylindrical groove;

[0016] The semi-cylindrical groove is provided with a sleeve for sleeve-fitting the pen core, and the sleeve is provided with a protrusion.

[0017] Preferably, a pressure sensor is provided in the square hole, and the pressure sensor is connected with a flat cable.

[0018] 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 switch can be closed and disconnected during the extension and retraction process of the pen core to start and close the dot matrix pen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] Figure 1 It is a schematic diagram of the structural decomposition of the housing and the ring sleeve in an embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of a bracket in an embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of the structure of a sliding assembly in an embodiment of the present invention;

[0023] Figure 4 is a schematic top view of an L-shaped driving rod in an embodiment of the present invention;

[0024] Figure 5is a schematic side view of a sliding assembly in an embodiment of the present invention;

[0025] Figure 6 It is a schematic diagram of the driving gear structure in an embodiment of the present invention;

[0026] Figure 7 is a schematic side view of a ring sleeve in an embodiment of the present invention;

[0027] In the figure, the housing 1, the bracket 2, the refill 3, the slider 4, the sliding assembly 5, and the ring sleeve 6;

[0028] A first shell 11, a second shell 12, a convex shape 13, an opening 14, and a switch hole 15;

[0029] Groove 21, refill groove 22, U-shaped piece 23, limiting column 24, head 25, thread 26, fastening cap 27;

[0030] Connecting column 40, semi-cylindrical groove 41, square hole 42, sleeve 43, protrusion 44, pressure sensor 45, flat cable 46;

[0031] Circular limiting groove 411;

[0032] Sliding sleeve 51, sliding rod 52, L-shaped driving rod 53;

[0033] Circular end cap 521, disc 522, compression spring 523;

[0034] Incline 531;

[0035] Driving teeth 61, teeth 62, arc-shaped grooves 63;

[0036] The first groove 621 , the second groove 622 , the first inclined surface 623 , the first vertical surface 624 , the second inclined surface 625 , and the second vertical surface 626 . DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] 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.

[0040] Example: Refer to Figure 1-7 As shown, the present invention discloses a dot matrix pen, including a shell 1, a bracket 2 and a refill 3, a groove 21 is arranged on the middle part of the outer side of the bracket 2, a refill groove 22 is connected with the groove 21, the refill groove 22 extends to the front end of the bracket 2, a slider 4 is slidably arranged in the groove 21, the slider 4 is connected to a sliding assembly 5, the sliding assembly 5 includes a sliding sleeve 51, a sliding rod 52 and an L-shaped driving rod 53, and the end of the L-shaped driving rod 53 is arranged as an inclined surface 531.

[0041] The housing 1 is also sleeved with a ring sleeve 6 , and a driving tooth 61 is provided in the middle of the ring sleeve 6 for driving the L-shaped driving rod 53 .

[0042] Specifically, the ring sleeve 6 is rotatably sleeved on the housing 1, and the driving teeth 61 are driven by rotating the ring sleeve 6 to drive the L-shaped driving rod 53, and the L-shaped driving rod 53 is driven to slide under the action of the driving teeth 61, driving the slider 4 to slide in the groove 21, thereby driving the pen core 3 connected to the slider 4 to achieve extension and retraction.

[0043] In another embodiment, the sliding sleeve 51 is adapted to the bracket 2 and slides on the outside of the bracket 2 . The sliding sleeve 51 is located between the bracket 2 and the shell 1 , that is, there is a certain space between the bracket 2 and the shell 1 for the sliding of the sliding sleeve 51 .

[0044] The slider 4 is located in the groove 21 , and the groove 21 has a guiding effect on the slider 4 . The slider 4 is fixedly connected to the inner side of the sleeve 51 through a connecting column 40 . When the sleeve 51 slides on the outer side of the bracket 2 , the slider 4 is driven to slide in the groove 21 .

[0045] The L-shaped driving rod 53 is fixedly connected to the outer side of the sliding sleeve 51 , and drives the sliding sleeve 51 to slide when the L-shaped driving rod 53 is squeezed and moves.

[0046] In another embodiment, the two side ends of the sliding sleeve 51 are fixedly connected to the sliding rod 52, and circular end caps 521 are fixedly provided at both ends of the sliding rod 52. A disc 522 is sleeved on the sliding rod 52, and a compression spring 523 is provided between the disc 522 and the end cap 521. The compression spring 523 is a conical compression spring. The disc 522 is fixedly connected to one end with a large diameter of the compression spring 523, and the hole in the middle of the disc 522 is sleeved through the circular end cap 521 to the sliding rod 52. After the disc 522 passes through the circular end cap 521, it rotates so that the compression spring 523 goes around the circular end cap 521 and passes through the sliding rod 52.

[0047] The disc 522 and the compression spring 523 are located on the slide bar 52 on one side of the end of the L-shaped driving rod 53 having the inclined surface 531 .

[0048] In another embodiment, the disc 522 and the compression spring 523 are first fixedly connected and then put on the slide rod 52, and then the circular end cap 521 is fixed on the slide rod 52, and the small-diameter end of the compression spring 523 abuts against the circular end cap 521 on the side of the inclined surface 531.

[0049] In another embodiment, U-shaped parts 23 for receiving the sliding rod 52 are symmetrically arranged on both sides of the bracket 2, and are spaced apart. The U-shaped parts 23 are used to support the installation of the sliding sleeve 51 and are used for the sliding of the sliding sleeve 51; the U-shaped parts 23 on the same side are located between the circular end cap 521 and the circular piece 522 on the sliding rod 52 which is not on the side of the inclined surface 531.

[0050] During specific installation, the disc 522 is placed outside the U-shaped piece 23, and the slide rod 52 is placed in the U-shaped piece 23, and then force is applied to compress the compression spring 523, and then the other end of the slide rod 52 is placed in another U-shaped piece 23 on the same side; at the same time, the slider 4 is located in the groove 21.

[0051] In another embodiment, a head 25 is provided at the front end of the bracket 2, and the head 25 is connected to the front end of the bracket 2 by snap-fitting. The snap-fitting connection method belongs to the prior art and will not be described in detail.

[0052] The shell 1 includes a first shell 11 and a second shell 12. The bracket 2 is symmetrically provided with spaced apart limiting columns 24 on both sides. The first shell 11 and the second shell 12 are respectively sleeved onto the bracket 2 from the front end and the rear end of the bracket 2. The limiting columns 24 form a gap between the first shell 11 and the second shell 12.

[0053] In another embodiment, the limiting column 24 is movably installed, specifically, a threaded hole is opened on the housing 1, and then the limiting column 24 is screwed into the threaded hole to achieve the installation of the limiting column 24. For this reason, the bracket 2 and the head 25 at the front end are an integral structure, the first housing 11 and the second housing 12 are sleeved on the bracket 2 from the rear end of the bracket 2, and then the limiting column 24 is installed to achieve a gap between the first housing 11 and the second housing 12.

[0054] In the above embodiment, the rear end of the bracket 2 is provided with a thread 26 , and a fastening cap 27 is screwed thereon to fix the second housing 12 .

[0055] In another embodiment, one end of the first shell 11 and the second shell 12 is a convex shape 13, the ring sleeve 6 is sleeved on the convex shape 13, and the driving tooth 61 arranged in the middle of the ring sleeve 6 is located in the gap formed by the limiting column 24 between the first shell 11 and the second shell 12.

[0056] An opening 14 is provided at the convex-shaped portion 13 of the first shell 11; when the first shell 11 is sleeved on the bracket 2, the L-shaped driving rod 53 is located in the opening 14, and the inclined surface 531 at its end is partially located in the gap formed by the limiting column 24 between the first shell 11 and the second shell 12.

[0057] The driving tooth 61 is located on the inner side of the change sleeve 6 and extends radially inward. The driving tooth 61 includes four groups of teeth 62. The teeth 62 include a first groove 621 and a second groove 622. The first groove 621 has a first inclined surface 623 and a first vertical surface 624 on both sides. The second groove 622 has a second inclined surface 625 and a second vertical surface 626 on both sides.

[0058] The depth of the second groove 622 is shallower than that of the first groove 621 .

[0059] When the ring sleeve 6 is rotated, the driving teeth 61 push the L-shaped driving rod 53 to slide in the opening 14. The arrangement of the opening 14 and the arrangement of the groove 21 prevent the sliding sleeve 51 from swinging left and right when sliding.

[0060] When the pen core 3 is in the state of being retracted into the pen body, the end surface of the L-shaped driving rod 53 abuts against the first groove 621 , and the inclined surface 531 fits with the first inclined surface 623 .

[0061] When the ring sleeve 6 is rotated, the first inclined surface 623 pushes the inclined surface 531 to make the L-shaped driving rod 53 slide in the opening 14, driving the slider 4 to slide in the groove 21, thereby driving the pen core 3 connected to the slider 4 to extend out of the pen body; at this time, the compression spring 523 is in a compressed state, and as the ring sleeve 6 continues to rotate, when the L-shaped driving rod 53 is located in front of the second groove 622, the compressed state of the compression spring 523 is released, so that the L-shaped driving rod 53 enters the second groove 622, and the inclined surface 531 fits with the second inclined surface 625.

[0062] The first vertical surface 624 and the second vertical surface 626 play a limiting role to prevent the ring sleeve 6 from rotating in the opposite direction.

[0063] In another embodiment, a switch hole 15 is provided on one side of the opening 14 provided at the convex-shaped portion 13 of the first shell 11 , and a push switch is installed in the switch hole 15 . The push switch is a prior art and will not be described in detail.

[0064] The push switch is fixedly mounted on a circuit board in the pen body. The electronic components in the pen body, including the circuit board, are prior art and will not be described in detail.

[0065] It should be pointed out that the push switch is fixedly mounted on the circuit board in the pen body. When the push switch is in the disconnected state, it protrudes outside the switch hole 15. Correspondingly, four arc-shaped grooves 63 are arranged at intervals on one side of the tooth 62 on the inner side of the ring sleeve 6. When the pen core 3 is in the state of retracting the pen body, the end face of the L-shaped driving rod 53 abuts against the first groove 621. At this time, one of the arc-shaped grooves 63 is located above the switch hole 15. In this way, when the ring sleeve 6 is rotated, the closing and opening of the dot matrix pen switch are realized while realizing the extension and retraction of the pen core.

[0066] In another embodiment, a semi-cylindrical groove 41 is provided on the upper end surface of the slider 4, a square hole 42 penetrating the slider 4 is provided at the end of the semi-cylindrical groove 41, a pressure sensor 45 is provided in the square hole 42, the pressure sensor 45 is connected to a flat cable 46, the flat cable 46 is connected to the circuit board, a circular limiting groove 411 is provided at the bottom of the semi-cylindrical groove 41; a sleeve 43 for sleeved with the pen core 3 is provided in the semi-cylindrical groove 41, and a protrusion 44 is provided on the sleeve 43.

[0067] Specifically, the sleeve 43 is tightly sleeved on the end of the pen core 3, and then the sleeve 43 is placed in the semi-cylindrical groove 41. The sleeve 43 can move in the semi-cylindrical groove 41 to ensure that the end surface of the pen core 3 can touch the pressure sensor 45 installed in the square hole 42.

[0068] At the same time, in order to relatively fix the sleeve 43 and the semi-cylindrical groove 41, a circular limiting groove 411 is provided at the bottom of the semi-cylindrical groove 41, and a protrusion 44 is provided on the sleeve 43. The circular limiting groove 411 is slightly larger than the protrusion 44 to limit the movable range of the protrusion 44 in the circular limiting groove 411, thereby limiting the movement of the sleeve 43 in the semi-cylindrical groove 41, so that the end face of the pen core 3 can only moderately touch the pressure sensor 45 installed in the square hole 42.

[0069] 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.

[0070] 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 on the middle part of the outer side of the bracket (2), a lead groove (22) is connected to the groove (21), the lead groove (22) extends to the front end of the bracket (2), a slider (4) is slidably provided in the groove (21), and the slider (4) is connected to the sliding assembly (5); The sliding assembly (5) comprises a sliding sleeve (51), a sliding rod (52) and an L-shaped driving rod (53), and the end of the L-shaped driving rod (53) is arranged as an inclined surface (531); The housing (1) is also sleeved with a ring sleeve (6), and a driving tooth (61) is arranged in the middle of the ring sleeve (6) for driving the L-shaped driving rod (53).

2. A dot matrix pen according to claim 1, characterized in that: The sliding sleeve (51) is adapted to the bracket (2) and slides on the outside of the bracket (2); The sliding block (4) is fixedly connected to the inner side of the sliding sleeve (51) via a connecting column (40), and the L-shaped driving rod (53) is fixedly connected to the outer side of the sliding sleeve (51).

3. A dot matrix pen according to claim 2, characterized in that: The sliding rod (52) is fixedly connected to both end portions of the sliding sleeve (51), and circular end caps (521) are fixedly provided at both ends of the sliding rod (52). A circular sheet (522) is sleeved on the sliding rod (52), and a compression spring (523) is provided between the circular sheet (522) and the end cap (521).

4. A dot matrix pen according to claim 3, characterized in that: U-shaped parts (23) for receiving the sliding rod (52) are symmetrically arranged at intervals on both sides of the bracket (2).

5. A dot matrix pen according to claim 1, characterized in that: The bracket (2) is symmetrically provided with spaced limiting columns (24) on both sides, the front end of the bracket (2) is provided with a head (25), the rear end of the bracket (2) is provided with a thread (26) and is screwed with a fastening cap (27).

6. A dot matrix pen according to claim 5, characterized in that: The shell (1) comprises a first shell (11) and a second shell (12); one end of the first shell (11) and the second shell (12) is convex (13); and an opening (14) is provided at the convex (13) portion of the first shell (11).

7. The dot matrix pen according to claim 1, characterized in that: The driving teeth (61) include four groups of teeth (62), and the teeth (62) include a first groove (621) and a second groove (622). The first groove (621) has a first inclined surface (623) and a first vertical surface (624) on both sides, and the second groove (622) has a second inclined surface (625) and a second vertical surface (626) on both sides.

8. A dot matrix pen according to claim 7, characterized in that: The depth of the second groove (622) is shallower than that of the first groove (621).

9. The dot matrix pen according to claim 1, characterized in that: The upper end surface of the slider (4) is provided with a semi-cylindrical groove (41), the end of the semi-cylindrical groove (41) is provided with a square hole (42) penetrating the slider (4), and the bottom of the semi-cylindrical groove (41) is provided with a circular limiting groove (411); A sleeve (43) for sleeve-connecting the pen core (3) is arranged in the semi-cylindrical groove (41), and a protrusion (44) is arranged on the sleeve (43).

10. A dot matrix pen according to claim 9, characterized in that: A pressure sensor (45) is provided in the square hole (42), and the pressure sensor (45) is connected to a flat cable (46).

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