Mute correction tape

Abstract

The utility model discloses a noiseless correction tape, including shell, press mouth, tape core and pressing mechanism, the pressing mechanism includes press piece, guide piece, control rod and spring, the both ends of control rod are connected with press piece and tape core respectively, guide piece is provided with through hole, control rod is provided in through hole, control rod is provided with first locating piece, and the first locating piece is provided with second locating piece. The guide piece is provided with first guide teeth, and each first guide tooth comprises a first ratchet part and a second ratchet part. When the first positioning piece is in contact with the first ratchet part, along with continuous movement of the control rod, when the first positioning piece is in contact with the second ratchet part, the control rod is limited to continuously move, the pressing nozzle fixedly extends out, and then when the pressing piece is pressed again, the control rod rotates again, so that the pressing nozzle retracts; in the pressing and resetting process of the pressing piece, the control rod always keeps the contact state with the pressing piece, so that the problem that noise is generated due to the fact that the control rod automatically rebounds only under the action of elastic force is effectively solved.

Description

Technical Field

[0001] The utility model relates to a correction tape, in particular to a silent correction tape. Background Art

[0002] Correction tape is an indispensable product in modern office and study. It is gradually replacing traditional correction fluid and becoming the mainstream correction product because of its advantages of fast and clean correction, smooth surface, environmental protection and non-toxicity. There are many styles of correction tape, such as square, round, pen-shaped and other different shapes. Among them, pen-shaped correction tape is favored by primary and secondary school students because of its advantages of being slim and easy to hold.

[0003] Traditional retractable pen-shaped correction tape usually adopts a torsion spring structure, such as Chinese invention patent 201510484605.7, a spring-pressed pen-shaped correction tape, which includes a shell, a nozzle and a belt winding device, the shell includes a first shell and a second shell, a core plate is provided in the shell, the belt winding device and the nozzle are installed on the core plate, a torsion spring is fixedly installed on the first shell, the first arm of the torsion spring is fixedly connected and matched with the core plate, the second arm is extended along the direction of the core plate back to the extension port, and a sliding track for the end of the second arm of the torsion spring to slide is provided on the core plate, and a limit block is provided in the sliding track for the end of the second arm of the torsion spring to be fixed and fixed on it, and a button is installed on the core plate to control the movement of the core plate and to limit the second arm of the torsion spring on the limit block or to separate from the limit block, and part of the button extends out of the second end of the shell. The user only needs to press the button lightly to extend or retract the nozzle, and there is no need to use a nozzle cap, which is convenient to use and has the advantages of simple structure and reasonable design.

[0004] Although the correction tape with the above structure can meet the use requirements: pressing the button makes the nozzle extend and it can be fixed for use, and when the button is pressed again, the nozzle retracts into the shell, but due to the violent collision between the core plate and the shell, it will generate loud noise, which is not convenient for use in a quiet environment.

[0005] In view of this, the inventor of this case conducted in-depth research on the above-mentioned issues, which resulted in this case. Utility Model Content

[0006] The purpose of the utility model is to provide a silent correction tape to solve the problems raised in the above background technology.

[0007] In order to achieve the above object, the utility model adopts the following technical solution:

[0008] A silent correction tape, comprising a shell, a pressure nozzle and a tape core arranged in the shell, wherein the pressure nozzle and the tape core are connected together in an integral or assembled manner, and further comprising a pressing mechanism for driving the pressure nozzle to extend out of or retract into the shell, wherein the pressing mechanism comprises a pressing member having one end passing through the shell and sliding along the axial direction of the shell, a guide member fixedly connected to the shell, a control rod rotatably sleeved on the guide member, and a spring sleeved on the outer side of the control rod and having two ends respectively connected to the pressing member and the guide member, wherein the upper end of the control rod is connected to the pressing member, and the lower end passes through the guide member and forms a push fit with the upper end of the tape core;

[0009] The guide member is provided with a through hole along the axial direction, the control rod is movably arranged in the through hole, the outer wall of the control rod is provided with a first positioning member, the inner wall of the guide member is provided with a first guide tooth, the first guide tooth includes a first ratchet part for cooperating with the control rod and driving the control rod to rotate and a second ratchet part for cooperating with the control rod and limiting the rotation of the control rod and positioning the control rod.

[0010] Preferably, it also includes a second positioning member and a second guide tooth for limiting the control rod from continuing to move downward, the first positioning member and the second positioning member are symmetrically arranged at the upper and lower ends of the control rod, the first guide tooth and the second guide tooth are respectively arranged at the upper and lower ends of the through hole, the second guide tooth includes a third ratchet part for cooperating with the control rod and driving the control rod to rotate, and a fourth ratchet part for cooperating with the control rod and limiting the rotation of the limit member and positioning the limit member.

[0011] Preferably, the first positioning member and / or the second positioning member are coaxially attached to the side surface of the control rod, the number of the first positioning member and the number of the second positioning member are at least one, and they are uniformly arranged along the radial direction of the control rod.

[0012] Preferably, the first guide tooth and / or the second guide tooth are coaxially attached to the side surface of the through hole, and the number of the first guide tooth and the second guide tooth is at least one, and they are uniformly arranged along the radial direction of the through hole.

[0013] Preferably, with the length direction of the shell as the up-and-down direction, the pressing mechanism drives the belt core and the pressing nozzle to be movable up and down in the shell, and the shell includes a first shell and a second shell that are interlocked and connected to each other, and the upper end of the first shell is provided with a through hole for the pressing member to move up and down, and the lower end of the lower shell is provided with an outlet for the pressing nozzle to extend out or retract into the shell.

[0014] Preferably, it also includes a connecting member for fixedly connecting the belt core within the shell, the connecting member is in a U-shaped structure, including a base plate arranged between the guide member and the belt core and vertical plates erected on both sides of the base plate, a first snap-fitting unit for snapping the two together is correspondingly arranged between one end of the two vertical plates away from the base plate and the pressing member, and a second snap-fitting unit for snap-fitting the two together is arranged between the lower end of the first shell and the upper end of the second shell.

[0015] Preferably, the base plate has a first extension arm extending toward one end away from the two vertical plates, the first shell has a second extension arm extending downwardly toward the side away from the through hole, the first extension arm and the second extension arm are symmetrically arranged on both sides of the belt core, a third fastener is arranged at the end of the first extension arm away from the base plate, and a third buckle groove matching the third fastener is arranged at the position of the belt core corresponding to the third fastener, so that the belt core is fixedly connected to the connecting member through the third fastener and the third buckle groove, the first extension arm, the second extension arm and the base plate.

[0016] Preferably, a through slot is provided on one side of the shell along the length direction of the shell, and the through slot extends from the corresponding side of the shell to the outside, and the retractable belt device part arranged on the belt core is arranged outside the shell and is arranged on the through slot in a manner that it can move up and down.

[0017] By adopting the above-mentioned design scheme, the beneficial effect of the utility model is that the control rod is driven to move axially along the shell body when the pressing piece is set, and when the first positioning piece on the control rod contacts the first ratchet part on the guide piece, as the control rod continues to move, when the first positioning piece contacts the second ratchet part, the control rod is restricted from continuing to move, and the first ratchet part facilitates the cooperation of the control rod to make the control rod rotate, and the second ratchet part facilitates the cooperation of the control rod and restricts the rotation of the control rod and positions the control rod, so as to push the belt core and the pressure nozzle downward and realize the fixed extension of the pressure nozzle; when the pressing piece is pressed again, the control rod will rotate again to retract the pressure nozzle. Since the control rod always keeps in contact with the pressing piece during the pressing and resetting process of the pressing piece, the problem of noise generated by the automatic rebound of the control rod only under the action of elastic force is effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is an exploded view of the utility model;

[0020] Figure 3 This is an exploded view of the utility model from another angle;

[0021] Figure 4 It is a cross-sectional view of the utility model;

[0022] Figure 5 It is an exploded view of the first housing and the pressing mechanism in the present utility model;

[0023] Figure 6 It is a principle diagram of the coordinated use of the control rod and the guide member in the utility model;

[0024] In the figure: shell 1, first shell 11, through hole 111, second extension arm 112, first shell 12, mouth 121, through slot 13, belt core 2, third buckle slot 21, pressure nozzle 3, pressing mechanism 4, pressing member 41, connecting rod 411, guide member 42, first guide tooth 421, first ratchet part 4211, second ratchet part 4212, second guide tooth 422, third ratchet part 4221, fourth ratchet part 4222, through hole 423, control rod 43, first positioning member 431, first side 4311, second side 4312, second positioning member 432, third side 4321, fourth side 4322, connecting hole 433, spring 44, connecting member 5, bottom plate 51, vertical plate 52, first extension arm 53, third buckle 531, first buckling unit 61, second buckling unit 62. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. 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.

[0026] Figures 1 to 6

[0027] A silent correction tape comprises a shell 1, a tape core 2 arranged in the shell 1, a pressing nozzle 3 connected to the tape core 2 in an integral or assembled manner, and a pressing mechanism 4 for driving the pressing nozzle 3 to extend out of or retract into the shell 1.

[0028] With the length direction of the shell 1 as the up-down direction, the pressing mechanism 4 drives the belt core 2 and the pressing nozzle 3 to be installed in the shell 1 in a manner that they can move up and down. The shell 1 includes a first shell 11 and a second shell 12 that are interlocked and detachably connected. The upper end of the first shell 11 is provided with a through hole 111 for a pressing member 41 (described in detail below) to move up and down, and the lower end of the second shell 12 is provided with an outlet 121 for the pressing nozzle 3 to extend or retract into the shell 1. The pressing member 41 is detachably connected to the first shell 11. The pressing member 41 can be square or circular. In this embodiment, the circular shape is preferred. The through hole 111 is also a circular hole that matches the outer diameter of the pressing member 41. The diameter of the pressing member 41 sleeved in the first shell 11 is larger than the aperture of the through hole 111. When the pressing member 41 is inserted into the through hole 111, it can be limited by the inner side of the first shell 11.

[0029] The pressing mechanism 4 includes a pressing member 41 with one end inserted into the housing 1 and slidable along the axial direction of the housing 1, a guide member 42 fixedly connected to the first housing 11, a control rod 43 rotatably sleeved on the guide member 42, and a spring 44 sleeved on the outer side of the control rod 43 and connected to the pressing member 41 and the guide member 42 at both ends, respectively. The upper end of the control rod 43 is movably connected to the pressing member 41, and the lower end passes through the guide member 42 and forms a push fit with the upper end of the belt core 2. Specifically, a connecting rod 411 extends downward from the lower end of the pressing member 41, and a connecting hole 433 connected to the connecting rod 411 is provided at the upper end of the control rod 43, and the connecting rod 411 is provided in the connecting hole 433. The guide member 42 is provided with a through hole 423 along the axial direction, and the lower end of the control rod 43 is movably provided in the through hole 423.

[0030] The outer side wall of the control rod 43 is provided with a first positioning member 431 and a second positioning member 432, and the first positioning member 431 and the second positioning member 432 are symmetrically arranged at the upper and lower ends of the control rod 43, the first positioning member 431 includes a first side edge 4311 and a second side edge 4312, and the second positioning member 432 includes a third side wall 4321 and a fourth side wall 4322; the inner side wall of the guide member 42 is provided with a first guide tooth 421 for controlling the rotation of the control rod 43 and a second guide tooth 422 for limiting the control rod 43 from continuing to move downward, and the first guide tooth 421 and the second guide tooth 422 are provided. 2 are respectively arranged at the upper and lower ends of the through hole 423, the first guide tooth 421 includes a first ratchet portion 4211 for cooperating with the first side edge 4311 and driving the control rod 43 to rotate, and a second ratchet portion 4212 for cooperating with the second side edge 4312 and limiting the rotation of the control rod 43 and positioning the control rod 43, and the second guide tooth 422 includes a third ratchet portion 4221 for cooperating with the third side edge 4321 and driving the control rod 43 to rotate, and a fourth ratchet portion 4222 for cooperating with the fourth side edge 4322 and limiting the rotation of the control rod 43 and positioning the control rod 43.

[0031] In the specific working process, the user first presses the pressing member 41 with a finger to drive the control rod 43 to move downward. When the first side edge 4311 abuts against the first ratchet portion 4211, the control rod 43 can be guided by the first ratchet portion 33 to drive the control rod 43 to move downward and rotate; when the second side edge 4312 abuts against the second ratchet portion 4212, the guide member 42 limits the control rod 43 to move downward and limit the rotation; when the user stops applying force to the pressing member 41 and naturally lifts his finger, the spring 44 The restoring effect can drive the control rod 43 to move upward, and at this time, the tape core 2 and the pressure nozzle 3 will also move upward. When the third side edge 4321 abuts against the third ratchet portion 4221, the control rod 43 can be guided by the third ratchet portion 4221, driving the control rod 43 to move upward and rotate; when the fourth side edge 4322 abuts against the fourth ratchet portion 4222, the guide member 42 limits the control rod 43 to move upward and limit the rotation. At this time, the pressure nozzle 3 extends out of the mouth 121 of the second shell 12, and the correction tape can be used normally.

[0032] When the user presses the pressing member 41 again with a finger, the control rod 43 moves downward. When the first side edge 4311 abuts against the first ratchet portion 4211, the control rod 43 can be guided by the first ratchet portion 33 to move downward and rotate. When the second side edge 4312 abuts against the second ratchet portion 4212, the guide member 42 limits the control rod 43 from moving downward and rotating. When the user stops applying force to the pressing member 41 and naturally lifts his finger, with the recovery effect of the spring 44, It can drive the control rod 43 to move upward, and at this time the belt core 2 and the pressure nozzle 3 will also move upward. When the third side 4321 abuts against the third ratchet portion 4221, the control rod 43 can be guided by the third ratchet portion 4221, driving the control rod 43 to move upward and rotate; when the fourth side 4322 abuts against the fourth ratchet portion 4222, the guide member 42 limits the control rod 43 from moving upward and limiting the rotation. At this time, the pressure nozzle 3 is completely retracted into the mouth 121 of the second shell 12, and the correction tape is in a storage state.

[0033] Preferably, the first positioning member 431 and / or the second positioning member 432 are coaxially attached to the side surface of the control rod 43 , and the number of the first positioning member 431 and the number of the second positioning member 432 are at least one, and they are evenly arranged along the radial direction of the control rod 43 .

[0034] Preferably, the first guide teeth 421 and / or the second guide teeth 422 are coaxially attached to the side surface of the through hole, and the number of the first guide teeth 421 and the second guide teeth 422 is at least one, and they are evenly arranged along the radial direction of the through hole.

[0035] Preferably, it also includes a connector 5 for fixing the belt core 2 in the housing 1. The connector 5 is a U-shaped structure, including a bottom plate 51 arranged between the guide member 42 and the belt core 2 and vertical plates 52 erected on both sides of the bottom plate 51. A first buckling unit 61 for buckling the two is correspondingly arranged between the end of the two vertical plates 52 away from the bottom plate 51 and the pressing member 41, and a second buckling unit 62 for buckling the two is arranged between the lower end of the first housing 11 and the upper end of the first housing 12. It is worth noting that the first buckling unit 61 and the second buckling unit 62 in this embodiment can both adopt conventional buckles and buckle grooves, which will not be described in detail here.

[0036] Preferably, the bottom plate 51 has a first extension arm 53 extending from one end away from the two upright plates 52, and the first shell 11 has a second extension arm 112 extending downward from one side away from the through hole 111, the first extension arm 53 and the second extension arm 112 are symmetrically arranged on both sides of the belt core 2, and the end of the first extension arm 53 away from the bottom plate 51 is provided with a third fastener 531, and the position of the belt core 2 corresponding to the third fastener 531 is provided with a third fastening groove 21 adapted to the third fastener 531, so that the belt core 2 is fixedly connected to the connecting member 5 through the third fastener 531 and the third fastening groove 21, the first extension arm 53, the second extension arm 112 and the bottom plate 51. The first extension arm 53 and the second extension arm 112 are both made of plastic material and can produce a certain degree of deformation.

[0037] Preferably, a through slot 13 is provided on one side of the shell 1 along the length direction of the shell 1, and the through slot 13 extends from the corresponding side of the shell 1 to the outside, and the retractable belt device part provided on the belt core 2 is provided outside the shell 1 and is provided on the through slot 13 in a manner that it can be moved up and down.

[0038] In summary, through the mutual cooperation between various components, during the pressing and resetting process of the pressing member 41, the pressing member 41 always maintains contact with the control rod 43, and the control rod 43 always maintains contact with the belt core 2, thereby effectively avoiding the problem of noise generated by automatic rebound under the elastic force of the spring 44 and the problem of loud noise generated by the violent collision between the belt core 2 and the shell 1.

[0039] By adopting the above-mentioned design scheme, the beneficial effect of the utility model is that the control rod 43 is driven to move axially along the shell 1 when the pressing member 41 is pressed, and when the first positioning member 431 on the control rod 43 contacts the first ratchet portion 4211 on the guide member 42, as the control rod 43 continues to move, when the first positioning member 431 contacts the second ratchet portion 4212, the control rod 43 is restricted from continuing to move, and the first ratchet portion 4211 facilitates the cooperation of the control rod 43 to make the control rod 43 rotate, and the second ratchet portion 4212 The ratchet portion 4212 is convenient for cooperating with the control rod 43 and limiting the rotation of the control rod 43 and positioning the control rod 43, so as to push the belt core 2 and the pressure nozzle 3 downward and realize the fixed extension of the pressure nozzle 3; then when the pressing member 41 is pressed again, the control rod 43 will rotate again to retract the pressure nozzle 3. During the pressing and resetting process of the pressing member 41, the control rod 43 always maintains contact with the pressing member 41, thereby effectively avoiding the problem of noise caused by the automatic rebound of the control rod 43 only under the action of elastic force.

[0040] 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silent correction tape, comprising a shell, a press nozzle and a tape core arranged in the shell, wherein the press nozzle and the tape core are connected together in an integral or assembled manner, characterized in that: It also includes a pressing mechanism for driving the pressing nozzle to extend or retract the shell, the pressing mechanism includes a pressing member with one end inserted into the shell and sliding along the axial direction of the shell, a guide member fixedly connected to the shell, a control rod rotatably sleeved on the guide member, and a spring sleeved on the outer side of the control rod and connected to the pressing member and the guide member at both ends, the upper end of the control rod is connected to the pressing member, and the lower end passes through the guide member and forms a push fit with the upper end of the belt core; The guide member is provided with a through hole along the axial direction, the control rod is movably arranged in the through hole, the outer wall of the control rod is provided with a first positioning member, the inner wall of the guide member is provided with a first guide tooth, the first guide tooth includes a first ratchet part for cooperating with the control rod and driving the control rod to rotate and a second ratchet part for cooperating with the control rod and limiting the rotation of the control rod and positioning the control rod.

2. The silent correction tape according to claim 1, characterized in that: It also includes a second positioning member and a second guide tooth for limiting the control rod from continuing to move downward, the first positioning member and the second positioning member are symmetrically arranged at the upper and lower ends of the control rod, the first guide tooth and the second guide tooth are respectively arranged at the upper and lower ends of the through hole, the second guide tooth includes a third ratchet part for cooperating with the control rod and driving the control rod to rotate, and a fourth ratchet part for cooperating with the control rod and limiting the rotation of the limit member and positioning the limit member.

3. The silent correction tape according to claim 2, characterized in that: The first positioning member and / or the second positioning member are coaxially attached to the side surface of the control rod. The number of the first positioning member and the number of the second positioning member are at least one, and they are evenly arranged along the radial direction of the control rod.

4. The silent correction tape according to claim 2, characterized in that: The first guide tooth and / or the second guide tooth are coaxially attached to the side surface of the through hole. The number of the first guide tooth and the second guide tooth is at least one, and they are evenly arranged along the radial direction of the through hole.

5. The silent correction tape according to claim 1, characterized in that: With the length direction of the shell as the up and down direction, the pressing mechanism drives the belt core and the pressing nozzle to be arranged in the shell in a manner that can be moved up and down, and the shell includes a first shell and a second shell that are interlocked and connected to each other. The upper end of the first shell is provided with a through hole for the pressing member to move up and down, and the lower end of the second shell is provided with an outlet for the pressing nozzle to extend or retract into the shell.

6. The silent correction tape according to claim 5, characterized in that: It also includes a connecting piece for fixing the belt core in the shell, the connecting piece is in a U-shaped structure, including a bottom plate arranged between the guide piece and the belt core and vertical plates erected on both sides of the bottom plate, a first snap-fitting unit for snapping the two together is correspondingly arranged between one end of the two vertical plates away from the bottom plate and the pressing piece, and a second snap-fitting unit for snapping the two together is arranged between the lower end of the first shell and the upper end of the second shell.

7. The silent correction tape according to claim 6, characterized in that: The base plate has a first extension arm extending toward one end away from the two vertical plates, the first shell has a second extension arm extending downwardly toward the side away from the through hole, the first extension arm and the second extension arm are symmetrically arranged on both sides of the belt core, a third fastener is arranged at the end of the first extension arm away from the base plate, and a third buckle groove matched with the third fastener is arranged at the position of the belt core corresponding to the third fastener, so that the belt core is fixedly connected to the connecting member through the third fastener and the third buckle groove, the first extension arm, the second extension arm and the base plate.

8. The silent correction tape according to claim 1, characterized in that: A through slot is provided on one side of the shell along the length direction of the shell, and the through slot extends from the corresponding side of the shell to the outside. The retractable belt device part provided on the belt core is provided outside the shell and is provided on the through slot in a manner that it can move up and down.

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