Rotary locking mechanism and pressing tool

Abstract

The utility model relates to the technical field of tools, in particular to a rotary locking mechanism and a pressing tool, the pressing tool comprises a tool body and the rotary locking mechanism, the rotary locking mechanism comprises a shell and a pressing piece, the pressing piece is movably inserted into an assembly hole of the shell, and the pressing piece is in transmission fit with the tool body; one of the hole wall of the assembly hole and the pressing piece is connected with a limiting part, and the other one of the hole wall of the assembly hole and the pressing piece is provided with a limiting chute and a limiting surface; only when the pressing piece is rotated to enable the limiting part and the limiting sliding groove to be distributed oppositely, the pressing piece can be unlocked, so that the pressing piece is pressed, and the tool body extends out of the telescopic opening of the shell. When the pressing piece rotates to enable the limiting sliding groove and the limiting part to be staggered in the circumferential direction of the pressing piece, the limiting face abuts against the end of the limiting part, the pressing piece is locked at the position extending out relative to the shell, and in other words, the pressing piece cannot be pressed to retract into the shell. In this way, the problem that the tool body extends out of the shell due to mistaken pressing and other accidents can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tools, and in particular, to a rotary locking mechanism and a pressing tool. Background Art

[0002] For a pressing tool, such as a gel pen, etc., when in use, the pressing member at the end of the housing can be pressed to realize the telescopic movement of the tool body (such as a pen refill) inside the housing, so that when the tool body extends out of the housing, the tool body can be used, and when the tool body retracts into the housing, the storage and protection of the tool body can be realized.

[0003] However, the pressing tools provided by the related art are prone to accidentally extending the tool body out of the housing due to accidental pressing, etc., and thus the tool body is prone to damage, and it is also easy to accidentally smear or draw, or even accidentally cut the user, etc. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a rotary locking mechanism and a pressing tool. The rotary locking mechanism can be used for the pressing tool to improve the problem that the tool body extends out of the housing due to accidental pressing, etc., and further improve the problem that the tool body is prone to damage, and can also improve the problems such as accidental smearing or drawing, or even accidentally cutting the user, etc.

[0005] The embodiments of the utility model are implemented as follows:

[0006] In a first aspect, the utility model provides a rotary locking mechanism for a pressing tool. The rotary locking mechanism includes:

[0007] A housing provided with an assembly hole; and,

[0008] A pressing member movably inserted into the assembly hole, and the pressing member is used for driving and cooperating with the tool body of the pressing tool; wherein,

[0009] One of the hole wall of the assembly hole and the pressing member is connected with a limiting portion, and the other of the hole wall of the assembly hole and the pressing member is provided with a limiting sliding groove and a limiting surface,

[0010] When the pressing member rotates relative to the housing so that the limiting portion and the limiting sliding groove are distributed relatively, the limiting surface is separated from the end surface of the limiting portion, and the pressing member can telescopically move relative to the housing under the sliding cooperation of the limiting portion and the limiting sliding groove; when the pressing member retracts relative to the housing, it can drive the tool body to extend out of the housing;

[0011] When the pressing member rotates relative to the housing so that the limiting sliding groove and the limiting portion are misaligned in the circumferential direction of the pressing member, the limiting surface abuts against the end of the limiting portion, and the pressing member is locked at the position extending relative to the housing.

[0012] In an alternative embodiment, the pressing member is provided with a limiting chute and a first protrusion. The first protrusion has a first side and a second side that are distributed opposite to each other along the circumferential direction of the housing. The first side is in contact with the groove wall of the limiting chute.

[0013] When the pressing member rotates relative to the housing in a first direction so that the first side abuts against the limiting portion, the limiting portion and the limiting chute are distributed oppositely, and the limiting surface is separated from the end surface of the limiting portion.

[0014] When the pressing member rotates relative to the housing in a second direction so that the second side abuts against the limiting portion, the limiting chute and the limiting portion are misaligned in the circumferential direction of the pressing member, and the limiting surface abuts against the end of the limiting portion.

[0015] The first direction is opposite to the second direction.

[0016] In an alternative embodiment, the pressing member is further provided with a second protrusion. The limiting chute includes a first groove. The first protrusion and the second protrusion are distributed on both sides of the first groove along the circumferential direction of the pressing member. The limiting portion includes a first limiting rib connected to the hole wall of the assembly hole.

[0017] When the pressing member rotates relative to the housing in a first direction so that the second protrusion crosses over the first limiting rib and the first limiting rib abuts against the first side, the first limiting rib and the first groove are distributed oppositely, the limiting surface is separated from the end surface of the first limiting rib, and the pressing member can telescopically move relative to the housing.

[0018] When the pressing member rotates relative to the housing in a second direction so that the second protrusion crosses over the first limiting rib, the first groove and the first limiting rib are misaligned in the circumferential direction of the pressing member, the limiting surface abuts against the end of the first limiting rib, and the second side can move to abut against the limiting portion.

[0019] In an alternative embodiment, the second protrusion is provided with a first chamfer. When the pressing member rotates relative to the housing in the first direction or the second direction, the first chamfer can slide over the surface of the first limiting rib.

[0020] In an alternative embodiment, the limiting portion further includes a second limiting rib connected to the hole wall of the assembly hole. The second limiting rib and the first limiting rib are spaced apart along the circumferential direction of the assembly hole. The limiting chute further includes a second groove. The second groove and the first groove are spaced apart along the circumferential direction of the pressing member.

[0021] When the first limiting rib and the first groove are distributed oppositely, the second limiting rib and the second groove are distributed oppositely.

[0022] When the first limiting rib and the first groove are misaligned in the circumferential direction of the pressing member, the second limiting rib and the second groove are misaligned in the circumferential direction of the pressing member, and the second side can abut against the second limiting rib so that the limiting surface abuts against the ends of the first limiting rib and the second limiting rib.

[0023] In an alternative embodiment, the pressing member is further connected with a third protrusion. The third protrusion and the first protrusion are circumferentially spaced apart along the pressing member, and the first protrusion is located between the third protrusion and the second protrusion.

[0024] When the pressing member rotates relative to the housing in the second direction, the third protrusion can cross over the second limiting rib, so that the second limiting rib is located between the first protrusion and the third protrusion, and the second side can abut against the second limiting rib.

[0025] In an alternative embodiment, the third protrusion is provided with a second chamfer. When the pressing member rotates relative to the housing in the first direction or the second direction, the second chamfer can slide over the surface of the second limiting rib.

[0026] In an alternative embodiment, one of the pressing member and the end of the housing is provided with a first inclined surface. The first inclined surface is distributed at an angle with respect to the direction in which the pressing member expands and contracts relative to the housing, and the first inclined surface has a first end and a second end distributed along the direction in which the pressing member expands and contracts relative to the housing; the housing is further provided with a telescopic opening for enabling the tool body to expand and contract relative to the housing. The assembly hole and the telescopic opening are respectively located at both ends of the housing. The distance from the first end to the telescopic opening is less than the distance from the second end to the telescopic opening.

[0027] The other of the pressing member and the housing is provided with an indicating portion.

[0028] When the pressing member rotates relative to the housing until the indicating portion is oppositely distributed to the first end, the limiting portion and the limiting sliding groove are oppositely distributed.

[0029] When the pressing member rotates relative to the housing until the indicating portion is oppositely distributed to the second end, the limiting sliding groove and the limiting portion are circumferentially misaligned on the pressing member.

[0030] In a second aspect, the present utility model provides a pressing tool, including a tool body and the rotary locking mechanism according to any one of the foregoing embodiments. The housing is further provided with a telescopic opening. The assembly hole and the telescopic opening are respectively located at both ends of the housing; the tool body is movably disposed in the housing and is in transmission cooperation with the pressing member.

[0031] When the limiting portion and the limiting sliding groove are oppositely distributed, the pressing member can contract relative to the housing under the action of an external force and drive the tool body to extend out from the telescopic opening.

[0032] When the limiting surface abuts against the end of the limiting portion, the pressing member is locked in the position extending relative to the housing, and the tool body can be locked in the position retracting from the telescopic opening into the housing.

[0033] In an alternative embodiment, the tool body includes a refill or a blade tip.

[0034] The beneficial effects of the rotary locking mechanism according to the embodiments of the present utility model include: When the rotary locking mechanism provided by the embodiments of the present utility model is in use, only when the rotary pressing member is rotated so that the limiting portion and the limiting sliding groove are distributed relatively, can the limiting surface be separated from the end surface of the limiting portion, and the pressing member can be telescopic relative to the housing, that is, the pressing member can be unlocked, and the tool body in transmission cooperation with it can be extended out of the housing by using the pressing member retracted into the housing; When the pressing member is rotated to make the limiting sliding groove and the limiting portion misaligned in the circumferential direction of the pressing member, the limiting surface abuts against the end of the limiting portion, and the pressing member is locked in the position extended relative to the housing, that is, the pressing member cannot be retracted relative to the housing. In this way, by locking the state of the pressing member extended relative to the housing, the problem that the tool body extends out of the housing due to accidental pressing or the like can be improved, and further the problem that the tool body is easily damaged can be improved, and the problems such as accidental mispainting, even accidental cutting of the user, etc. can also be improved.

[0035] The pressing tool according to the embodiments of the present utility model includes all the beneficial effects of the aforementioned rotary locking mechanism. For example: By locking the state of the pressing member extended relative to the housing, the problem that the tool body extends out of the housing due to accidental pressing or the like can be improved, and further the problem that the tool body is easily damaged can be improved, and the problems such as accidental mispainting, even accidental cutting of the user, etc. can also be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0037] Figure 1 It is a schematic structural diagram of the pressing tool in the embodiments of the present utility model;

[0038] Figure 2 It is a cross-sectional view of the pressing tool in the embodiments of the present utility model;

[0039] Figure 3 It is a schematic diagram of the pressing member switching between the unlocked position and the locked position in the embodiments of the present utility model;

[0040] Figure 4 It is a schematic diagram of a partial structure of the pressing tool when the pressing member is in the locked position in the embodiments of the present utility model;

[0041] Figure 5 It is a schematic diagram of a partial structure of the pressing member in the embodiments of the present utility model;

[0042] Figure 6 It is a schematic diagram of the internal structure of the housing in the embodiments of the present utility model;

[0043] Figure 7 This is an exploded view of a partial structure of the pressing tool in the embodiment of the present utility model.

[0044] Icon: 010 - Pressing tool; 100 - Rotating locking mechanism; 110 - Housing; 111 - Assembly hole; 112 - Telescopic opening; 113 - Upper shell; 114 - Lower shell; 115 - First inclined surface; 121 - First limiting rib; 122 - Second limiting rib; 130 - Pressing member; 131 - First groove; 132 - Second groove; 133 - First protrusion; 134 - Second protrusion; 135 - Third protrusion; 136 - Limiting surface; 137 - Indicator portion; 138 - Second inclined surface; 141 - Insertion post; 142 - Keycap; 151 - Elastic reset member; 152 - Rotating wheel; 153 - Fixed wheel; 200 - Tool body; a - First direction; b - Second direction. Detailed implementation manners

[0045] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. The components of the embodiments of the present utility model described and illustrated herein usually can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the protection scope of the present utility model.

[0047] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0048] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0049] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, the terms "arrangement" and "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0050] Please refer to Figure 1 、 Figure 2 and Figure 3 , this embodiment provides a pressing tool 010, which can be a ballpoint pen, a cutter, a screwdriver, etc., and no specific limitation is made here; this embodiment will take a ballpoint pen as an example for detailed description.

[0051] The pressing tool 010 includes a tool body 200 and a rotary locking mechanism 100. Among them, the tool body 200 refers to a pen refill; the rotary locking mechanism 100 includes a housing 110 and a pressing member 130. The housing 110 is provided with an assembly hole 111 and a telescopic opening 112, and the assembly hole 111 and the telescopic opening 112 are respectively located at both ends of the housing 110; the tool body 200 is movably arranged in the housing 110; the pressing member 130 is movably inserted into the assembly hole 111, and the pressing member 130 is in transmission cooperation with the tool body 200; a limiting portion is connected to the hole wall of the assembly hole 111, and the pressing member 130 is provided with a limiting sliding groove and a limiting surface 136. When the pressing member 130 rotates relative to the housing 110 so that the limiting portion and the limiting sliding groove are distributed relatively, the limiting surface 136 is separated from the end surface of the limiting portion, that is, the limiting surface 136 and the end surface of the limiting portion are misaligned in the circumferential direction of the pressing member 130, and the pressing member 130 can be telescopic relative to the housing 110 under the sliding cooperation of the limiting portion and the limiting sliding groove; when the pressing member 130 retracts relative to the housing 110, it can drive the tool body 200 to extend out of the housing 110, that is, when the limiting portion and the limiting sliding groove are distributed relatively, the pressing member 130 can retract relative to the housing 110 under the action of an external force and drive the tool body 200 to extend out from the telescopic opening 112; when the pressing member 130 rotates relative to the housing 110 so that the limiting sliding groove and the limiting portion are misaligned in the circumferential direction of the pressing member 130, the limiting surface 136 abuts against the end of the limiting portion, and the pressing member 130 is locked at the position extending relative to the housing 110.

[0052] When the pressing tool 010 is in use, only when the rotating pressing member 130 is rotated so that the limiting portion and the limiting chute are distributed relative to each other can the limiting surface 136 be separated from the end surface of the limiting portion, and the pressing member 130 can be telescopic relative to the housing 110, that is, the pressing member 130 can be unlocked, and the tool body 200 in transmission cooperation with it can be extended out of the housing 110 by using the pressing member 130 retracted into the housing 110; when the pressing member 130 is rotated to make the limiting chute and the limiting portion misaligned in the circumferential direction of the pressing member 130, the limiting surface 136 abuts against the end of the limiting portion, and the pressing member 130 is locked in the position extended relative to the housing 110, that is, the pressing member 130 cannot be retracted relative to the housing 110, and the tool body 200 is correspondingly locked in the position retracted into the housing 110 from the telescopic opening 112. In this way, by locking the state of the pressing member 130 extending relative to the housing 110, the problem that the tool body 200 extends out of the housing 110 due to accidental pressing or the like can be improved, and further the problem that the tool body 200 is easily damaged can be improved, and the problems of accidental misapplication and scribbling can also be improved.

[0053] It should be understood that in other embodiments, the pressing member 130 is connected with a limiting portion, and the hole wall of the assembly hole 111 is provided with a limiting chute and a limiting surface 136, which are not specifically limited herein.

[0054] It should be noted that in the embodiments where the pressing tool 010 is a cutter or a screwdriver, the tool body 200 may also refer to a tool bit, for example, a cutter bit, a screwdriver bit, etc., which are not specifically limited herein.

[0055] It should also be noted that the rotation axis of the pressing member 130 coincides with or is parallel to the central axis of the housing 110, and the pressing member 130 can rotate relative to the housing 110 along its own rotation axis.

[0056] Optionally, the angle by which the pressing member 130 rotates between the unlocked position and the locked position can be 175°-180°; in other embodiments, the above angle can also be increased or decreased as needed, which is not specifically limited herein.

[0057] In this embodiment, please refer to Figure 3 、 Figure 4 and Figure 5, the pressing member 130 is further provided with a first protrusion 133. The first protrusion 133 has a first side and a second side that are distributed away from each other along the circumferential direction of the housing 110. The first side is in contact with the groove wall of the limiting chute; when the pressing member 130 rotates relative to the housing 110 along the first direction a so that the first side abuts against the limiting portion, the limiting portion and the limiting chute are distributed relatively, and the limiting surface 136 is separated from the end surface of the limiting portion; when the pressing member 130 rotates relative to the housing 110 along the second direction b so that the second side abuts against the limiting portion, the limiting chute and the limiting portion are misaligned in the circumferential direction of the pressing member 130, and the limiting surface 136 abuts against the end of the limiting portion; the first direction a is opposite to the second direction b. Through the arrangement of the first protrusion 133, it is convenient to judge whether the pressing member 130 rotates to the unlocking position or the locking position according to the abutting situation between the first protrusion 133 and the limiting portion; wherein, when the pressing member 130 rotates along the first direction a until the first protrusion 133 abuts against the limiting portion and cannot rotate further along the first direction a, the first side of the first protrusion 133 abuts against the limiting portion, the limiting portion and the limiting chute are distributed relatively, and the pressing member 130 can be retracted relative to the housing 110 under the action of an external force and drive the tool body 200 to extend out from the telescopic opening 112; when the pressing member 130 rotates along the second direction b until the first protrusion 133 abuts against the limiting portion and cannot rotate further along the second direction b, the second side of the first protrusion 133 abuts against the limiting portion, the limiting portion and the limiting chute are misaligned in the circumferential direction of the pressing member 130, the limiting surface 136 abuts against the end of the limiting portion, the pressing member 130 is locked at the position extending relative to the housing 110 and cannot be retracted relative to the housing 110 under the action of an external force, and thus cannot drive the tool body 200 to extend out from the telescopic opening 112.

[0058] Further, the pressing member 130 is further provided with a second protrusion 134. The limiting chute includes a first groove 131. The first protrusion 133 and the second protrusion 134 are distributed on both sides of the first groove 131 along the circumferential direction of the pressing member 130; the limiting portion includes a first limiting rib 121 connected to the hole wall of the assembly hole 111; when the pressing member 130 rotates relative to the housing 110 along the first direction a so that the second protrusion 134 passes over the first limiting rib 121 and the first limiting rib 121 abuts against the first side, the first limiting rib 121 and the first groove 131 are distributed relatively, and the limiting surface 136 is separated from the end surface of the first limiting rib 121, that is, the limiting surface 136 and the first limiting rib 121 are completely misaligned in the circumferential direction of the pressing member 130, and the pressing member 130 can be telescopic relative to the housing 110; when the pressing member 130 rotates relative to the housing 110 along the second direction b so that the second protrusion 134 passes over the first limiting rib 121, the first groove 131 and the first limiting rib 121 are misaligned in the circumferential direction of the pressing member 130, and the second side of the first protrusion 133 can move to abut against the limiting portion. Through the arrangement of the second protrusion 134, the damping feel of rotating the pressing member 130 can be increased, and the user experience can be improved.

[0059] Optionally, the second protrusion 134 is provided with a first chamfer. When the pressing member 130 rotates relative to the housing 110 along the first direction a or the second direction b, the first chamfer can slide over the surface of the first limiting rib 121. By providing the first chamfer, the smoothness of the second protrusion 134 passing over the first limiting rib 121 can be ensured when the pressing member 130 rotates relative to the housing 110.

[0060] Furthermore, first chamfers are provided on both relative sides of the second protrusion 134 along the circumferential direction of the pressing member 130; in this way, no matter whether the pressing member 130 rotates along the first direction a or the second direction b, the smooth passing of the second protrusion 134 over the first limiting rib 121 can be ensured, thereby ensuring the ease of operation of the pressing member 130 in switching between the unlocked state and the locked state.

[0061] Please refer to Figure 3 、 Figure 4 Figure 5 and Figure 6 In addition, the limiting portion of this embodiment further includes a second limiting rib 122 connected to the hole wall of the assembly hole 111. The second limiting rib 122 and the first limiting rib 121 are spaced apart along the circumferential direction of the assembly hole 111; the limiting chute further includes a second groove 132, and the second groove 132 and the first groove 131 are spaced apart along the circumferential direction of the pressing member 130; when the first limiting rib 121 and the first groove 131 are distributed opposite to each other, the second limiting rib 122 and the second groove 132 are distributed opposite to each other; when the first limiting rib 121 and the first groove 131 are misaligned in the circumferential direction of the pressing member 130, the second limiting rib 122 and the second groove 132 are misaligned in the circumferential direction of the pressing member 130, and the second side can abut against the second limiting rib 122, so that the limiting surface 136 abuts against the end of the first limiting rib 121 and the end of the second limiting rib 122. Through the sliding fit between the first limiting rib 121 and the first groove 131, and the sliding fit between the second limiting rib 122 and the second groove 132, the stability of the telescopic movement of the unlocked pressing member 130 relative to the housing 110 is ensured, and further the stability of the telescopic movement of the tool body 200 relative to the housing 110 is ensured.

[0062] Further, the pressing member 130 is further connected with a third protrusion 135. The third protrusion 135 and the first protrusion 133 are circumferentially spaced apart along the pressing member 130, and the first protrusion 133 is located between the third protrusion 135 and the second protrusion 134. When the pressing member 130 rotates relative to the housing 110 in the second direction b, the third protrusion 135 can cross over the second limiting rib 122, so that the second limiting rib 122 is located between the first protrusion 133 and the third protrusion 135, and the second side of the first protrusion 133 can abut against the second limiting rib 122. During the process of rotating the pressing member 130 in the second direction b to lock the pressing member 130, the setting of the third protrusion 135 can provide a damped feel, and when the second limiting rib 122 moves between the third protrusion 135 and the first protrusion 133, a sense of paragraph is formed, effectively improving the user experience during use.

[0063] Optionally, the third protrusion 135 is provided with a second chamfer. When the pressing member 130 rotates relative to the housing 110 in the first direction a or the second direction b, the second chamfer can slide over the surface of the second limiting rib 122. Through the setting of the second chamfer, the smoothness of the third protrusion 135 crossing over the second limiting rib 122 can be ensured when the pressing member 130 rotates relative to the housing 110.

[0064] Further, second chamfers are provided on both opposite sides of the third protrusion 135 along the circumference of the pressing member 130. In this way, whether the pressing member 130 rotates in the first direction a or the second direction b, the smooth crossing of the third protrusion 135 over the second limiting rib 122 can be ensured, thereby ensuring the ease of operation of the pressing member 130 when switching between the unlocked state and the locked state.

[0065] In order to enable the user to visually judge whether the pressing member 130 is in the locked state or the unlocked state when rotating the pressing member 130; please refer to Figure 3 , an end portion of the housing 110 of this embodiment is further provided with a first inclined surface 115. Specifically, the end portion of the housing 110 provided with the assembly hole 111 is provided with the first inclined surface 115. The first inclined surface 115 is distributed at an angle with respect to the direction in which the pressing member 130 expands and contracts relative to the housing 110, and the first inclined surface 115 has a first end and a second end distributed along the direction in which the pressing member 130 expands and contracts relative to the housing 110. The distance from the first end to the expansion and contraction port 112 is less than the distance from the second end to the expansion and contraction port 112. The pressing member 130 is provided with an indicating portion 137. When the pressing member 130 rotates relative to the housing 110 until the indicating portion 137 is distributed opposite to the first end, the limiting portion and the limiting sliding groove are distributed opposite to each other. When the pressing member 130 rotates relative to the housing 110 until the indicating portion 137 is distributed opposite to the second end, the limiting sliding groove and the limiting portion are circumferentially misaligned on the pressing member 130.

[0066] Of course, in other embodiments, the first inclined surface 115 is provided on the pressing member 130, and the indicating portion 137 is provided on the housing 110, which is not specifically limited herein.

[0067] The included angle between the first inclined surface 115 and the direction in which the pressing member 130 expands and contracts relative to the housing 110 can be set as needed, for example: 45°, 60°, etc., which is not specifically limited herein.

[0068] Optionally, the pressing member 130 is further provided with a second inclined surface 138. The second inclined surface 138 is angularly distributed with respect to the direction in which the pressing member 130 expands and contracts relative to the housing 110, and the second inclined surface 138 has a third end and a fourth end distributed along the direction in which the pressing member 130 expands and contracts relative to the housing 110. The distance between the third end and the telescopic opening 112 is less than the distance between the fourth end and the telescopic opening 112; when the pressing member 130 rotates relative to the housing 110 until the indicating portion 137 is distributed opposite to the first end, the third end is opposite to the first end; when the pressing member 130 rotates relative to the housing 110 until the indicating portion 137 is distributed opposite to the second end, the fourth end is opposite to the second end.

[0069] The included angle between the second inclined surface 138 and the direction in which the pressing member 130 expands and contracts relative to the housing 110 can be set as needed, for example: 45°, 60°, etc., which is not specifically limited herein.

[0070] Optionally, the included angle between the first inclined surface 115 and the direction in which the pressing member 130 expands and contracts relative to the housing 110 is the same as the included angle between the second inclined surface 138 and the direction in which the pressing member 130 expands and contracts relative to the housing 110. When the pressing member 130 rotates until the first inclined surface 115 and the second inclined surface 138 are parallelly distributed, the pressing member 130 is in the unlocked position, that is, the limit chute and the limiting portion are distributed opposite to each other, and the limiting portion can slide and cooperate with the limit chute.

[0071] Of course, in other embodiments, the included angle between the first inclined surface 115 and the direction in which the pressing member 130 expands and contracts relative to the housing 110 is not the same as the included angle between the second inclined surface 138 and the direction in which the pressing member 130 expands and contracts relative to the housing 110.

[0072] The indicating portion 137 in this embodiment is a protrusion connected to the pressing member 130. Of course, in other embodiments, the indicating portion 137 can also be an identifier printed or engraved on the pressing member 130, etc., which is not specifically limited herein.

[0073] It should be understood that in some embodiments, the indicating portion 137 can also refer to the third end of the second inclined surface 138.

[0074] Please refer to Figure 2 and Figure 7, the pressing tool 010 of this embodiment further includes an elastic reset member 151, a rotating wheel 152, and a fixed wheel 153. The rotating wheel 152 and the fixed wheel 153 are in transmission connection. The fixed wheel 153 is in transmission connection with the pressing member 130, and the rotating wheel 152 is in transmission connection with the tool body 200. That is, the pressing member 130 is in transmission connection with the tool body 200 through the fixed wheel 153 and the rotating wheel 152. The two ends of the elastic reset member 151 abut against the tool body 200 and the housing 110 respectively. When the unlocked pressing member 130 is pressed, the pressing member 130 can drive the tool body 200 to move in the direction of protruding from the telescopic opening 112 through the fixed wheel 153 and the rotating wheel 152. If the tool body 200 has not protruded from the housing 110 before the pressing member 130 is pressed, the tool body 200 can protrude from the housing 110 when the pressing member 130 is pressed. If the tool body 200 has already protruded from the housing 110 before the pressing member 130 is pressed, the tool body 200 can be further moved in the direction of protruding from the housing 110 when the pressing member 130 is pressed, and when the pressing member 130 is no longer pressed, the tool body 200 can be retracted into the housing 110 through the elastic reset member 151.

[0075] The structures and assembly methods of the elastic reset member 151, the fixed wheel 153, and the rotating wheel 152 are similar to those of the pen provided in the related art. For example, the fixed wheel 153 can be snap-connected to the pressing member 130.

[0076] Optionally, an annular limiting groove is further provided on the inner wall of the housing 110. The rotating wheel 152 is snap-connected to the annular limiting groove, and the rotating wheel 152 can rotate around the annular limiting groove and can be restricted from moving axially by the groove wall of the annular limiting groove.

[0077] Optionally, the pressing member 130 includes a plugging column 141 and a keycap 142. One end of the plugging column 141 is plugged into the assembly hole 111, and the other end is connected to the keycap 142. A first protrusion 133, a second protrusion 134, and a third protrusion 135 are provided at one end of the plugging column 141 plugged into the assembly hole 111, and the plugging column 141 is provided with a first groove 131 and a second groove 132. Both the first groove 131 and the second groove 132 penetrate through one end of the plugging column 141 plugged into the assembly hole 111. The keycap 142 is provided with a second inclined surface 138 and an indicating portion 137.

[0078] The connection method between the plugging column 141 and the keycap 142 includes but is not limited to snap connection and integral molding, and is not specifically limited herein.

[0079] Optionally, the housing 110 includes an upper housing 113 and a lower housing 114 threadedly connected thereto. An assembly hole 111 is provided at one end of the upper housing 113 away from the lower housing 114, and a telescopic opening 112 is provided at one end of the lower housing 114 away from the upper housing 113.

[0080] The unlocking process of the pressing tool 010 in this embodiment includes: rotating the pressing member 130 in the first direction a so that the third protrusion 135 crosses over the second limiting rib 122; continuing to rotate the pressing member 130 in the first direction a so that the second protrusion 134 crosses over the first limiting rib 121 and the first side of the first protrusion 133 abuts against the first limiting rib 121. At this time, the first groove 131 and the first limiting rib 121 are distributed opposite to each other, and the second groove 132 and the second limiting rib 122 are distributed opposite to each other. The pressing member 130 is unlocked, and the pressed pressing member 130 can be retracted into the housing 110.

[0081] The locking process of the pressing tool 010 in this embodiment includes: rotating the pressing member 130 in the second direction b so that the second protrusion 134 crosses over the first limiting rib 121; continuing to rotate the pressing member 130 in the second direction b so that the third protrusion 135 crosses over the second limiting rib 122, so that the second limiting rib 122 is located between the first protrusion 133 and the third protrusion 135. At this time, the first groove 131 and the first limiting rib 121 are offset in the circumferential direction of the pressing member 130, and the second groove 132 and the second limiting rib 122 are offset in the circumferential direction of the pressing member 130. The end of the first limiting rib 121 and the end of the second limiting rib 122 both abut against the limiting surface 136, and the pressing member 130 is locked at the position extending out of the housing 110.

[0082] In summary, the rotary locking mechanism 100 can be used for the pressing tool 010 to improve the problem that the tool body 200 extends out of the housing 110 due to accidental pressing or the like, thereby improving the problem that the tool body 200 is easily damaged, and can also improve problems such as accidental misapplication, accidental scribbling, and even accidental cutting of users.

[0083] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rotary locking mechanism for a pressing tool, characterized in that: include: A housing (110), wherein the housing (110) is provided with an assembly hole (111); as well as, A pressing piece (130), the pressing piece (130) can be movably inserted into the assembly hole (111), and the pressing piece (130) is used for transmission cooperation with the tool body (200) of the pressing tool; wherein, One of the hole wall of the assembly hole (111) and the pressing member (130) is connected to a limiting portion, and the other of the hole wall of the assembly hole (111) and the pressing member (130) is provided with a limiting sliding groove and a limiting surface (136). When the pressing member (130) rotates relative to the housing (110) so that the limiting portion and the limiting sliding groove are relatively distributed, the limiting surface (136) is separated from the end surface of the limiting portion, and the pressing member (130) can be extended and retracted relative to the housing (110) under the sliding cooperation between the limiting portion and the limiting sliding groove; when the pressing member (130) is retracted relative to the housing (110), it can drive the tool body (200) to extend out of the housing (110); When the pressing member (130) rotates relative to the shell (110) so that the limiting slide groove and the limiting portion are misaligned in the circumferential direction of the pressing member (130), the limiting surface (136) abuts against the end of the limiting portion, and the pressing member (130) is locked in a position extending relative to the shell (110).

2. The rotation locking mechanism according to claim 1, characterized in that: The pressing member (130) is provided with the limiting sliding groove and a first protrusion (133), wherein the first protrusion (133) has a first side and a second side that are distributed opposite to each other along the circumference of the housing (110), and the first side is connected to the groove wall of the limiting sliding groove; When the pressing member (130) rotates relative to the housing (110) along the first direction (a) so that the first side abuts against the limiting portion, the limiting portion and the limiting sliding groove are arranged relative to each other, and the limiting surface (136) is separated from the end surface of the limiting portion; When the pressing member (130) rotates relative to the housing (110) along the second direction (b) so that the second side abuts against the limiting portion, the limiting sliding groove and the limiting portion are misaligned in the circumferential direction of the pressing member (130), and the limiting surface (136) abuts against the end of the limiting portion; The first direction (a) is opposite to the second direction (b).

3. The rotation locking mechanism according to claim 2, characterized in that: The pressing piece (130) is further provided with a second protrusion (134); the limiting sliding groove comprises a first groove (131); the first protrusion (133) and the second protrusion (134) are distributed on both sides of the first groove (131) along the circumference of the pressing piece (130); the limiting portion comprises a first limiting rib (121) connected to the hole wall of the assembly hole (111); When the pressing member (130) rotates relative to the housing (110) along the first direction (a) so that the second protrusion (134) passes over the first limiting rib (121) and the first limiting rib (121) abuts against the first side, the first limiting rib (121) and the first groove (131) are arranged relative to each other, the limiting surface (136) is separated from the end surface of the first limiting rib (121), and the pressing member (130) can be extended and retracted relative to the housing (110); When the pressing member (130) rotates relative to the shell (110) along the second direction (b) so that the second protrusion (134) passes over the first limiting rib (121), the first groove (131) and the first limiting rib (121) are offset in the circumferential direction of the pressing member (130), the limiting surface (136) abuts against the end of the first limiting rib (121), and the second side can move to abut against the limiting portion.

4. The rotation locking mechanism according to claim 3, characterized in that: The second protrusion (134) is provided with a first chamfer, and when the pressing member (130) rotates relative to the housing (110) along the first direction (a) or the second direction (b), the first chamfer can slide over the surface of the first limiting rib (121).

5. The rotation locking mechanism according to claim 3, characterized in that: The limiting portion further comprises a second limiting convex rib (122) connected to the hole wall of the assembly hole (111), and the second limiting convex rib (122) and the first limiting convex rib (121) are spaced apart along the circumference of the assembly hole (111); the limiting sliding groove further comprises a second groove (132), and the second groove (132) and the first groove (131) are spaced apart along the circumference of the pressing member (130); When the first limiting convex rib (121) and the first groove (131) are arranged relative to each other, the second limiting convex rib (122) and the second groove (132) are arranged relative to each other; When the first limiting rib (121) and the first groove (131) are misaligned in the circumferential direction of the pressing member (130), the second limiting rib (122) and the second groove (132) are misaligned in the circumferential direction of the pressing member (130), and the second side can abut against the second limiting rib (122), so that the limiting surface (136) abuts against the end of the first limiting rib (121) and the end of the second limiting rib (122).

6. The rotation locking mechanism according to claim 5, characterized in that: The pressing member (130) is also connected to a third protrusion (135), the third protrusion (135) and the first protrusion (133) are spaced apart along the circumference of the pressing member (130), and the first protrusion (133) is located between the third protrusion (135) and the second protrusion (134); When the pressing member (130) rotates relative to the shell (110) along the second direction (b), the third protrusion (135) can pass over the second limiting rib (122), so that the second limiting rib (122) is located between the first protrusion (133) and the third protrusion (135), and the second side can abut against the second limiting rib (122).

7. The rotation locking mechanism according to claim 6, characterized in that: The third protrusion (135) is provided with a second chamfer, and when the pressing member (130) rotates relative to the housing (110) along the first direction (a) or the second direction (b), the second chamfer can slide over the surface of the second limiting rib (122).

8. The rotation locking mechanism according to claim 1, characterized in that: One of the pressing member (130) and the end of the shell (110) is provided with a first inclined surface (115), the first inclined surface (115) and the direction in which the pressing member (130) is extended and retracted relative to the shell (110) are distributed at an angle, and the first inclined surface (115) has a first end and a second end distributed along the direction in which the pressing member (130) is extended and retracted relative to the shell (110); the shell (110) is also provided with a telescopic opening (112) for allowing the tool body (200) to be extended and retracted relative to the shell (110), the assembly hole (111) and the telescopic opening (112) are respectively located at two ends of the shell (110), and the distance between the first end and the telescopic opening (112) is smaller than the distance between the second end and the telescopic opening (112); The other of the pressing member (130) and the housing (110) is provided with an indicating portion (137); When the pressing member (130) is rotated relative to the housing (110) until the indicating portion (137) is arranged opposite to the first end, the limiting portion and the limiting sliding groove are arranged opposite to each other; When the pressing member (130) is rotated relative to the housing (110) until the indicating portion (137) and the second end are relatively distributed, the limiting sliding groove and the limiting portion are misaligned in the circumferential direction of the pressing member (130).

9. A pressing tool, characterized in that: The invention comprises a tool body (200) and a rotation locking mechanism according to any one of claims 1 to 8, wherein the housing (110) is further provided with a telescopic opening (112), and the assembly hole (111) and the telescopic opening (112) are respectively located at two ends of the housing (110); the tool body (200) is movably arranged in the housing (110) and is transmission-coordinated with the pressing member (130); When the limiting portion and the limiting sliding groove are arranged relative to each other, the pressing member (130) can be retracted relative to the housing (110) under the action of an external force, and drive the tool body (200) to extend from the telescopic opening (112); When the limiting surface (136) abuts against the end of the limiting portion, the pressing member (130) is locked in a position extending relative to the shell (110), and the tool body (200) can be locked in a position retracted from the telescopic opening (112) into the shell (110).

10. The pressing tool according to claim 9, characterized in that The tool body (200) comprises a pen core or a tool head.

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