Paper bin cover locking device and printing equipment

Abstract

The invention discloses a paper bin cover locking device and printing equipment, which are used for solving the technical problem that a paper bin cover is easy to open under external force due to lack of a locking structure between the existing paper bin cover and a paper bin groove. The paper bin comprises a paper bin groove and a paper bin cover hinged to the paper bin groove, and further comprises a turning cover, a first clamping piece and a second clamping piece. A hollow part is arranged on the paper bin cover, the flip cover is movably arranged on the hollow part, the first clamping piece is connected with the flip cover, and the second clamping piece is matched with the first clamping piece for use and is fixed in the paper bin groove; when the paper bin cover covers the paper bin groove, the turning cover moves relative to the hollow part so that the first clamping piece and the second clamping piece can be mutually locked or separated, and therefore the paper bin cover can be switched between the locking state and the unlocking state.

Description

Technical Field

[0001] The present invention relates to the technical field of printing equipment design, and in particular to a paper bin cover locking device and printing equipment. Background Art

[0002] Common existing printing devices, such as POS machines, are designed with a paper bin slot for placing printing paper rolls on their bodies, and a paper bin cover is designed on the paper bin slot to cover the paper bin slot, thereby preventing the printing paper roll from falling off. However, in the above design, due to the lack of a locking structure between the paper bin cover and the paper bin slot, when the POS machine sends out the printed paper strip, the user is likely to generate external force on the paper bin cover during the paper tearing process, thereby causing the paper bin cover to be opened, and then causing the printing paper roll to fall off, causing great inconvenience to the user and seriously affecting the user's experience.

[0003] Therefore, finding a technical solution that can solve the above technical problems has become an important topic studied by technical personnel in this field. Summary of the invention

[0004] The embodiment of the present invention discloses a paper bin cover locking device and a printing device, which are used to solve the technical problem that there is no locking structure between the existing paper bin cover and the paper bin slot, which causes the paper bin cover to be easily opened when subjected to external force.

[0005] A paper bin cover locking device provided by the present invention comprises a paper bin slot and a paper bin cover hinged to the paper bin slot, and further comprises a flip cover, a first engaging member and a second engaging member;

[0006] The paper bin cover is provided with a hollow portion, the flip cover is movably provided on the hollow portion, the first engaging member is connected to the flip cover, and the second engaging member cooperates with the first engaging member and is fixed in the paper bin slot;

[0007] When the paper bin cover is closed on the paper bin slot, the flip cover moves relative to the hollow portion to lock or separate the first engaging member and the second engaging member with each other, thereby switching the paper bin cover between a locked state and an unlocked state.

[0008] Optionally, two opposite inner side walls of the hollow portion are provided with displacement grooves, and two opposite outer side surfaces of the flip cover are provided with shaft centers, and the shaft centers are rotatably assembled in the displacement grooves and can be driven to move horizontally relative to the displacement grooves;

[0009] When the flip cover is driven to rotate upwardly by a preset angle relative to the paper bin cover and move along a first direction, the first engaging member and the second engaging member are staggered with each other so that the paper bin cover is in an unlocked state.

[0010] Optionally, it also includes an elastic reset component;

[0011] The elastic reset component tends to make the flip cover cover the hollow portion so that the first engaging member and the second engaging member are locked with each other, thereby putting the paper bin cover in a locked state.

[0012] Optionally, the elastic reset assembly includes an elastic member and a pressing portion;

[0013] One end of the elastic member is connected to the paper bin cover, and the other end of the elastic member is connected to the pressing portion. The inner side wall of the flip cover is provided with a pressing groove used in conjunction with the pressing portion, and the elastic member tends to make the pressing portion abut against the pressing groove.

[0014] Optionally, the inner side wall of the paper bin cover is provided with a slide groove, and the slide groove extends from the pressing groove to a second direction opposite to the first direction;

[0015] When the flip cover is driven to flip upward relative to the paper bin cover and move relative to the first direction, the pressing portion escapes from the pressing groove to the sliding groove and moves along the second direction.

[0016] Optionally, the pressing portion is a spherical body, the pressing groove is a spherical groove used in conjunction with the spherical body, and the spherical groove is recessed toward the inside of the flip cover.

[0017] Optionally, a limit block is installed on the inner side wall of the paper bin cover;

[0018] One end of the elastic member away from the pressing portion is connected to the limiting block;

[0019] When the flip cover rotates upward at a preset angle relative to the paper bin cover, the limit block interferes with the flip cover on the rotation trajectory of the flip cover to limit the flip cover from further rotation.

[0020] Optionally, an outer wall surface of the paper bin cover is provided with a lifting groove connected to the hollow portion, and the lifting groove is recessed toward the inside of the paper bin cover.

[0021] Optionally, the first engaging member is a hook, and the second engaging member is a engaging protrusion used in conjunction with the hook.

[0022] The present invention provides a printing device, comprising the paper bin cover locking device as described above.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The paper bin cover locking device of the present embodiment includes a flap, a first engaging member and a second engaging member; a hollow portion is provided on the paper bin cover, the flap can be movably provided on the hollow portion, the first engaging member is connected to the flap, and the second engaging member cooperates with the first engaging member and is fixed in the paper bin slot. In the above design, when the paper bin cover is closed on the paper bin slot, the flap moves relative to the hollow portion to lock or separate the first engaging member and the second engaging member, thereby switching the paper bin cover between a locked state and an unlocked state. Through the above design, the paper bin cover can be locked with the paper bin slot when closed, effectively preventing the external force generated by the user tearing the paper from causing the paper bin cover to open and cause the paper roll to fall, thereby effectively improving the user's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic structural diagram of a paper bin cover in a paper bin cover locking device provided by the present invention in a locked state;

[0027] Figure 2 A schematic diagram of the structure of a paper bin cover in a paper bin cover locking device provided by the present invention in an unlocked state;

[0028] Figure 3 A schematic diagram of the structure of a displacement slot in a paper bin cover locking device provided by the present invention;

[0029] Figure 4 A schematic diagram of the cooperation between the axis and the displacement groove in a paper bin cover locking device provided by the present invention;

[0030] Figure 5 A positional relationship diagram of an elastic member, a pressing portion and a pressing groove in a paper bin cover locking device provided by the present invention;

[0031] Figure 6 A schematic cross-sectional structure diagram of a paper bin cover locking device provided by the present invention when the paper bin cover is in a locked state;

[0032] Illustration: paper bin cover 1; flip cover 2; first engaging member 3; second engaging member 4; opening slot 5; hollow portion 6; displacement slot 7; axis 8; limit block 9; elastic member 10; pressing portion 11; slide slot 12; pressing slot 13; first direction X; second direction Y. DETAILED DESCRIPTION

[0033] The invention discloses a paper bin cover locking device and a printing device, which are used to solve the technical problem that the paper bin cover is easily opened when subjected to external force due to the lack of a locking structure between the existing paper bin cover and the paper bin slot.

[0034] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 6 , a paper bin cover locking device provided by an embodiment of the present invention comprises a paper bin slot and a paper bin cover 1 hinged to the paper bin slot, wherein a printing paper roll to be printed is placed in the paper bin slot, and the paper bin cover 1 can be driven to rotate relative to the paper bin slot to close or open the paper bin slot, so as to facilitate users to replace the printing paper roll;

[0036] The locking device of the paper bin cover 1 in this embodiment specifically includes a flip cover 2, a first engaging member 3 and a second engaging member 4;

[0037] The paper bin cover 1 is provided with a hollow portion 6, the flip cover 2 is movably provided on the hollow portion 6, the first engaging member 3 is connected to the flip cover 2, and the second engaging member 4 cooperates with the first engaging member 3 and is fixed in the paper bin slot;

[0038] When the paper bin cover 1 covers the paper bin slot, the flip cover 2 moves relative to the hollow portion 6 to lock or separate the first engaging member 3 and the second engaging member 4 with each other, thereby switching the paper bin cover 1 between a locked state and an unlocked state.

[0039] Through the above design, the paper bin cover 1 can be locked with the paper bin slot when closed, effectively preventing the external force generated by the user tearing paper from causing the paper bin cover 1 to open and cause the paper roll to fall, effectively improving the user experience.

[0040] Furthermore, if Figure 3 and Figure 4 As shown, the two opposite inner side walls of the hollow portion 6 in this embodiment are provided with displacement grooves 7, and the two opposite outer side surfaces of the flip cover 2 are provided with shafts 8, and the shafts 8 are rotatably assembled in the displacement grooves 7 and can be driven to move horizontally relative to the displacement grooves 7;

[0041] When the flip cover 2 is driven to rotate upward by a preset angle relative to the paper bin cover 1 and move along a first direction, the first engaging member 3 and the second engaging member 4 are staggered with each other so that the paper bin cover 1 is in an unlocked state.

[0042] Specifically, Figure 3 As shown, the hollow portion 6 specifically penetrates the paper bin cover 1 from the thickness direction of the paper bin cover 1 .

[0043] It should be noted that, in the above design, when the paper bin cover 1 is covered on the paper bin slot and the paper bin cover 1 is in a locked state, when the user needs to open the paper bin cover 1, the user needs to first flip the flap 2 upward to a preset angle, such as 30°, 20°, etc., which can be set according to actual requirements. At this time, the first engaging member 3 and the second engaging member 4 are staggered, and then the user pulls the flap 2 in the first direction, that is, pulls the flap 2 toward the user side, so that the first engaging member 3 and the second engaging member 4 are completely separated, thereby completing the unlocking of the paper bin cover 1. At this time, the user can replace the printing paper roll.

[0044] In addition, it should be further explained that if Figure 3 As shown, the displacement groove 7 is specifically an elliptical groove, and the axis 8 can rotate and move horizontally relative to the elliptical groove. Specifically, the axis 8 can move horizontally in the elliptical groove in a first direction or a second direction opposite to the first direction.

[0045] Furthermore, the locking device of the paper bin cover 1 in this embodiment further includes an elastic reset component;

[0046] The elastic reset assembly tends to make the flip cover 2 cover the hollow portion 6 so that the first engaging member 3 and the second engaging member 4 are locked with each other, thereby putting the paper bin cover 1 in a locked state.

[0047] It should be noted that, through the above design, the paper bin cover 1 can be locked in the paper bin slot more stably, ensuring the stability of the locked state of the paper bin cover 1. In addition, due to the presence of the elastic reset component, when the user needs to open the paper bin cover 1, the force applied by the user to the flip cover 2 needs to be greater than the elastic force of the elastic reset component.

[0048] Specifically, in one embodiment, Figure 5 and Figure 6 As shown, the elastic reset assembly includes an elastic member 10 and a pressing portion 11;

[0049] One end of the elastic member 10 is connected to the paper bin cover 1 , and the other end of the elastic member 10 is connected to the pressing portion 11 . The inner side wall of the flip cover 2 is provided with a pressing groove 13 used in conjunction with the pressing portion 11 , and the elastic member 10 tends to make the pressing portion 11 abut against the pressing groove 13 .

[0050] Specifically, the elastic member in this embodiment can be selected as a spring.

[0051] It should be noted that, through the above design, the elastic member 10 tends to make the pressing portion 11 abut against the pressing groove 13, thereby tending to make the flip cover 2 cover the hollow portion 6 so that the first engaging member 3 and the second engaging member 4 are locked with each other, and then tending to put the paper bin cover 1 in a locked state.

[0052] Furthermore, if Figure 6 As shown, the inner wall of the paper bin cover 1 in this embodiment is provided with a slide groove 12, and the extension direction of the slide groove 12 is consistent with that of the displacement groove 7. Specifically, the slide groove 12 extends from the pressing groove 13 to a second direction opposite to the first direction;

[0053] When the flip cover 2 is driven to flip upward relative to the paper bin cover 1 and move relative to the first direction, the pressing portion 11 escapes from the pressing groove 13 to the sliding groove 12 and moves along the second direction.

[0054] It should be noted that, through the above design, when the user needs to open the paper bin cover 1 in the locked state, the user needs to rotate the flip cover 2 upward by a preset angle and pull the flip cover 2 to move in the first direction. At the same time, the pressing portion 11 escapes from the pressing groove 13 to the sliding groove 12 and moves along the second direction. At this time, the elastic member 10 is compressed, and the user can open the paper bin cover 1.

[0055] It can be simply understood that when the user needs to lock the paper bin cover 1 to the paper bin slot, he only needs to close the paper bin cover 1 to the paper bin slot and push the flip cover 2 to move in the second direction. At this time, the pressing portion 11 returns to the pressing slot 13, and the first engaging member 3 automatically engages with the second engaging member 4 again, thereby returning the paper bin cover 1 to the locked state.

[0056] Furthermore, if Figure 5 and Figure 6 As shown, the pressing portion 11 in this embodiment is a spherical body, and the pressing groove 13 is a spherical groove used in conjunction with the spherical body, and the spherical groove is recessed toward the inside of the flip cover 2.

[0057] It should be noted that, in the above design, since the spherical groove has a certain limiting effect on the spherical body, the user needs to apply an external force greater than the elastic force of the elastic member 10 to drive the spherical body out of the spherical groove. Through the above design, the contact stability between the pressing portion 11 and the pressing groove 13 can be guaranteed.

[0058] Furthermore, if Figure 5 As shown, a limit block 9 is installed on the inner side wall of the paper bin cover 1 in this embodiment;

[0059] One end of the elastic member 10 away from the pressing portion 11 is connected to the limiting block 9;

[0060] When the flip cover 2 rotates upward at a preset angle relative to the paper bin cover 1 , the limit block 9 interferes with the flip cover 2 on the rotation trajectory of the flip cover 2 to limit the flip cover 2 from further rotating.

[0061] It should be noted that the above-mentioned limit block 9 mainly functions as follows:

[0062] First, it provides a limiting function for the flip cover 2, thereby limiting the maximum rotation angle of the flip cover 2; second, it provides an installation position for the elastic member 10.

[0063] Furthermore, if Figure 1 and Figure 2 As shown, the outer wall surface of the paper bin cover 1 in this embodiment is provided with a lifting groove 5 which is connected with the hollow portion 6 , and the lifting groove 5 is recessed toward the inside of the paper bin cover 1 .

[0064] It should be noted that, through the above-mentioned design, the design of the opening slot 5 can facilitate the user to insert his finger into the opening slot 5 to contact the flip cover 2 , thereby operating the flip cover 2 .

[0065] Furthermore, if Figure 1 and Figure 2 As shown, the first engaging member 3 in this embodiment is specifically a hook, and the second engaging member 4 is specifically a engaging protrusion used in conjunction with the hook.

[0066] It should be noted that the structures of the first engaging member 3 and the second engaging member 4 of this embodiment can be selected according to actual conditions, and this embodiment does not limit this.

[0067] The above is a specific description of the structure of a locking device for a paper bin cover 1 provided in an embodiment of the present invention. The locking device for a paper bin cover 1 will be further described below with a specific working principle. The working principle of the locking device for a paper bin cover 1 provided in an embodiment of the present invention is:

[0068] like Figure 1 As shown, at this time, the paper bin cover 1 is in a locked state;

[0069] When the user needs to open the paper bin cover 1, the user first needs to flip the flip cover 2 upward at a preset angle so that the first engaging member 3 and the second engaging member 4 are staggered with each other. Then, the user pulls the flip cover 2 to move in the first direction. At the same time, the pressing portion 11 escapes from the pressing groove 13 into the slide groove 12 and moves in the slide groove 12 along the second direction. At this time, the first engaging member 3 and the second engaging member 4 are completely separated. Figure 2 As shown, the paper bin cover 1 enters an unlocked state, and the user can open the paper bin cover 1.

[0070] When the user needs to lock the paper bin cover 1, the user covers the paper bin cover 1 on the paper bin slot, and then pushes the flip cover 2 to move in the second direction, and the pressing portion 11 abuts against the pressing slot 13 again. At this time, the first locking member 3 and the second locking member 4 are engaged with each other, so that the paper bin cover 1 is in a locked state.

[0071] See also Figures 1 to 6 The present invention provides a printing device, which includes the above-mentioned paper bin cover 1 locking device.

[0072] Specifically, the above-mentioned printing device may be a POS machine or other types of printers.

[0073] In the printing device of this embodiment, when the paper bin cover 1 is covered on the paper bin slot, the flap 2 moves relative to the hollow portion 6 to lock or separate the first engaging member 3 and the second engaging member 4, thereby switching the paper bin cover 1 between a locked state and an unlocked state. Through the above design, the paper bin cover 1 can be locked with the paper bin slot when covered, effectively preventing the external force generated by the user tearing the paper from causing the paper bin cover 1 to open and cause the paper roll to fall, effectively improving the user's experience.

[0074] The above is a detailed introduction to a paper bin cover locking device and a printing device provided by the present invention. For a person skilled in the art, according to the idea of ​​the embodiments of the present invention, there may be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A paper bin cover locking device, comprising a paper bin slot and a paper bin cover (1) hinged to the paper bin slot, characterized in that: It also includes a flip cover (2), a first engaging member (3) and a second engaging member (4); The paper bin cover (1) is provided with a hollow portion (6), the flip cover (2) is movably arranged on the hollow portion (6), the first engaging member (3) is connected to the flip cover (2), and the second engaging member (4) cooperates with the first engaging member (3) and is fixed in the paper bin slot; When the paper bin cover (1) is closed on the paper bin slot, the flip cover (2) moves relative to the hollow portion (6) to lock or separate the first engaging member (3) and the second engaging member (4) with each other, thereby switching the paper bin cover (1) between a locked state and an unlocked state.

2. The paper bin cover locking device according to claim 1, characterized in that: Two opposite inner side walls of the hollow portion (6) are provided with displacement grooves (7), and two opposite outer side surfaces of the flip cover (2) are provided with shafts (8), the shafts (8) are rotatably mounted in the displacement grooves (7) and can be driven to move horizontally relative to the displacement grooves (7); When the flip cover (2) is driven to rotate upwards at a preset angle relative to the paper bin cover (1) and move along a first direction, the first engaging member (3) and the second engaging member (4) are staggered with each other so that the paper bin cover (1) is in an unlocked state.

3. The paper bin cover locking device according to claim 2, characterized in that: Also included is an elastic reset assembly; The elastic reset component tends to make the flip cover (2) cover the hollow portion (6) so that the first engaging member (3) and the second engaging member (4) are locked with each other, thereby putting the paper bin cover (1) in a locked state.

4. The paper bin cover locking device according to claim 3, characterized in that: The elastic reset assembly comprises an elastic member (10) and a pressing portion (11); One end of the elastic member (10) is connected to the paper bin cover (1), and the other end of the elastic member (10) is connected to the pressing portion (11). The inner side wall of the flip cover (2) is provided with a pressing groove (13) used in conjunction with the pressing portion (11), and the elastic member (10) tends to cause the pressing portion (11) to abut against the pressing groove (13).

5. The paper bin cover locking device according to claim 4, characterized in that: The inner side wall of the paper bin cover (1) is provided with a slide groove (12), and the slide groove (12) extends from the pressing groove (13) to a second direction opposite to the first direction; When the flip cover (2) is driven to flip upward relative to the paper bin cover (1) and move relative to the first direction, the pressing portion (11) escapes from the pressing groove (13) to the sliding groove (12) and moves along the second direction.

6. The paper bin cover locking device according to claim 4, characterized in that: The pressing portion (11) is a spherical body, the pressing groove (13) is a spherical groove used in conjunction with the spherical body, and the spherical groove is recessed toward the inside of the flip cover (2).

7. The paper bin cover locking device according to claim 4, characterized in that: A limit block (9) is installed on the inner side wall of the paper bin cover (1); One end of the elastic member (10) away from the pressing portion (11) is connected to the limiting block (9); When the flip cover (2) is rotated upwards by a preset angle relative to the paper bin cover (1), the limit block (9) interferes with the flip cover (2) on the rotation trajectory of the flip cover (2) to limit the flip cover (2) from continuing to rotate.

8. The paper bin cover locking device according to claim 1, characterized in that: The outer wall surface of the paper bin cover (1) is provided with a lifting groove (5) which is connected to the hollow portion (6), and the lifting groove (5) is recessed toward the inside of the paper bin cover (1).

9. The paper bin cover locking device according to claim 1, characterized in that: The first engaging member (3) is a hook, and the second engaging member (4) is a engaging protrusion used in conjunction with the hook.

10. A printing device, characterized in that: It comprises a paper bin cover locking device as described in any one of claims 1 to 9.

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