Press type printer uncovering structure

Abstract

A pressing type printer uncovering structure comprises a lock catch assembly arranged on one of an upper shell and a lower shell of a printer and two buckle grooves formed in the other shell, the lock catch assembly comprises a lock cylinder and a key, the key is fixedly arranged in the middle of the lock cylinder, the lock cylinder is transversely arranged and can synchronously translate along with the key, and the two buckle grooves are formed in the lock cylinder. Two ends of the lock cylinder are vertically provided with two buckling parts, one of the buckling groove and the buckling part is arranged on the butt joint surface of the upper shell, the other one of the buckling groove and the buckling part is arranged on the butt joint surface of the lower shell, the buckling part is connected with the buckling groove in a buckling mode when the upper shell and the lower shell are closed in a covering mode, and the translation direction of the lock cylinder and the releasing direction of the buckling part are consistent with the pressing direction of the key. And when the key is pressed, the lock cylinder synchronously translates and drives the buckling part to be separated from the buckling groove. The press type printer uncovering structure is simpler, and uncovering is more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to a cover opening structure of a press-type printer. Background Art

[0002] The Chinese utility model patent with the authorization announcement number CN216069302U discloses a press-type printer cover opening structure, and its structure is as follows: Figure 1 and Figure 2 As shown, it includes a button 1a, a first lock core 2a, a second lock core 3a, a first buckle portion 4a, a second buckle portion 5a, a first reset elastic member 10a, a second reset elastic member 11a, a third reset elastic member 12a and a fourth reset elastic member 13a; a first push portion 6a and a second push portion 7a are provided in the button 1a, a first force-bearing inclined surface 8a is provided on the first lock core 2a, and a second force-bearing inclined surface 9a is provided on the second lock core 3a. The working principle of the press-type printer cover opening structure is as follows: when the button 1a moves between the first lock core 2a and the second lock core 3a, the first push portion 6a and the second push portion 7a push the first force-bearing inclined surface 8a of the first lock core 2a and the second force-bearing inclined surface 9a of the second lock core 3a respectively, thereby pulling the first lock core 2a and the second lock core 3a closer to each other, and the first lock core 2a and the second lock core 3a retract relative to the outer shell body, so that the first buckle portion 4a and the second buckle portion 5a can be disengaged, so that the function of opening the cover can be achieved by pressing the button 1a with one hand, which is very convenient to use.

[0003] However, the existing press-type printer cover opening structure has the following technical problems: the button 1a and the two lock cores are movably connected together through the push portion and the force-bearing inclined surface, and the structure is relatively complicated. In order to make the force-bearing inclined surface always lean against the push portion, a first reset elastic member 10a and a second reset elastic member 11a need to be respectively arranged between the button 1a and the two lock cores, which further increases the complexity of the structure; in addition, since the pressing force of the button 1a is in the front-to-back direction, while the moving direction of the lock core and the disengagement direction of the buckle portion are in the left-to-right direction, the prior art adopts a structure in which the push portion and the force-bearing inclined surface cooperate between the button 1a and the two lock cores to convert the front-to-back pressing force acting on the button 1a into the telescopic force of the two lock cores in the left-to-right direction, so that the force acting on the button 1a is not directly transmitted to the lock core, but is transmitted to the lock core after the force is converted by the push portion and the force-bearing inclined surface, which increases the intermediate transmission link, resulting in unreliable force transmission, which ultimately affects the reliability of opening the cover; in addition, the use of two lock cores may also have the problem of asynchronism, which further affects the reliability of opening the cover. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a cover opening structure of a press-type printer with a simpler structure and more reliable cover opening.

[0005] The technical solution of the utility model is: a press-type printer cover opening structure, including a lock component arranged on one of the upper shell and the lower shell of the printer, and two buckle grooves arranged on the other, the lock component includes a lock core and a button, the button is fixed in the middle of the lock core, the lock core is horizontally arranged and can be synchronously translated with the button, two buckle parts are vertically arranged at both ends of the lock core, one of the buckle groove and the buckle part is arranged on the docking surface of the upper shell, and the other is arranged on the docking surface of the lower shell, when the upper shell and the lower shell are covered, the buckle part is buckled and connected with the buckle groove, the translation direction of the lock core and the disengagement direction of the buckle part are consistent with the pressing direction of the button, when the button is pressed, the lock core is synchronously translated and drives the buckle part to disengage from the buckle groove.

[0006] After adopting the above structure, the utility model has the following advantages:

[0007] The press-type printer cover opening structure of the utility model only has one lock core, and the button is directly fixed to the middle of the lock core, and no other connecting structure is required in the middle, so the structure is simpler; because the button is directly fixed to the lock core, the buckle parts are directly arranged at both ends of the lock core, and the pressing direction of the button, the translation direction of the lock core, and the disengagement direction of the buckle parts are all consistent, the pressing force of the button can be directly transmitted to the lock core, and there is no need to add a force conversion link in the middle, so the force transmission is more reliable, and the cover opening is also more reliable; in addition, only one lock core is provided, and the two buckle parts are arranged on the same lock core, which is conducive to the synchronous disengagement of the two buckle parts and the two buckle grooves, and further ensures the reliability of cover opening.

[0008] Preferably, the lock core is transversely arranged in the lower shell and located on the side opposite to the hinge side of the lower shell, the button is movably embedded on the side wall of the lower shell opposite to the hinge side, the buckle portion is convexly arranged on the docking surface of the lower shell, and the buckle groove is arranged on the docking surface of the upper shell. This arrangement has a reasonable layout, is easy to operate, and conforms to the user's usage habits.

[0009] Preferably, a first guide structure is provided between the lower housing and the two buckle parts, respectively, for guiding the moving direction of the buckle parts. This arrangement can guide the moving direction of the buckle parts, so that they can be reliably connected or separated from the buckle grooves, thereby ensuring the reliability of opening and closing the cover.

[0010] Preferably, the first guide structure comprises a first guide seat arranged on the buckle portion and a first guide column arranged in the lower shell, the first guide seat is provided with a slide groove, and the first guide column slides in the slide groove when the button is pressed. The first guide structure is very simple and reliable in guiding.

[0011] Preferably, the first guide column comprises a bolt, which passes through the slide slot of the first guide seat and is locked on the top of the lower shell, and the first guide seat is limited in upper and lower positions between the top of the lower shell and the bolt head of the bolt. Using the bolt as the first guide column is not only convenient for installation, but also limits the movement of the first guide seat in the up and down directions, so that the buckle portion can be more reliably connected to or separated from the buckle slot.

[0012] Preferably, the gap between the top of the lower shell and the bolt head of the bolt is greater than the thickness of the first guide seat. This arrangement can make the first guide seat slide more smoothly.

[0013] Preferably, an anti-sway structure is provided between the lower shell and the two buckle parts, respectively. This arrangement can make the first guide seat more stable during the sliding process.

[0014] Preferably, the anti-sway structure includes a presser foot, which is arranged on both sides of the buckle portion opposite to the first guide seat, and a support plate is provided on one side of the buckle portion close to the presser foot, one end of the presser foot is fixed to the top of the inner side of the lower shell, and the other end is against the top of the support plate. The anti-sway structure is very simple, and the swaying generated by the first guide seat can be well balanced by only arranging the presser foot on the opposite side of the first guide seat.

[0015] Preferably, the first guide seat is arranged in the middle of the buckle part, and the abutment plate is arranged at the bottom end of the buckle part. This arrangement makes the first guide seat and the abutment plate of the presser foot staggered up and down, and the anti-swaying effect is better.

[0016] Preferably, a second guide structure is provided between the lower shell and the lock core, for guiding the lock core to follow the translation of the key. This arrangement can guide the translation direction of the lock core, so that it assists the first guide structure and further ensures reliable connection or separation between the buckle portion and the buckle groove.

[0017] Preferably, the second guide structure comprises a second guide seat provided on one of the lock core and the lower housing and a second guide column provided on the other, the second guide seat being provided with a U-shaped groove, and the second guide column sliding in the U-shaped groove when the button is pressed. The second guide structure is simple and convenient for installing the second guide column on the second guide seat through the opening of the U-shaped groove.

[0018] Preferably, a first elastic reset device is provided between the lower housing and the lock core, which is used to drive the lock core and the button to reset synchronously when the button is released. This arrangement can realize automatic reset of the lock core and the button, which is more convenient to use.

[0019] Preferably, a guide surface is further provided on the top of the buckle portion, which is used to guide the buckle portion to align with the buckle slot when closing the cover, and after alignment, the buckle portion is driven by the first elastic reset device to snap into the buckle slot. With a simple guide surface, the buckle portion can be aligned and snapped into the buckle slot when closing the cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the cover opening structure of an existing press-type printer;

[0021] Figure 2 The key, the first lock core and the second lock core of the existing press-type printer cover opening structure are matched;

[0022] Figure 3 This is a schematic diagram of the structure of the press-type printer cover opening structure of the utility model installed on the printer and in the cover closing state;

[0023] Figure 4 This is a schematic diagram of the structure of the press-type printer cover opening structure of the utility model installed on the printer and in the cover opening state;

[0024] Figure 5 This is a schematic diagram of the structure of the press-type printer cover opening structure of the utility model installed on the printer (hiding the bottom of the lower shell body) and in the cover opening state;

[0025] Figure 6 This is a schematic diagram of the structure of the press-type printer cover opening structure of the utility model installed on the printer (hiding the top of the lower shell) and in the cover opening state;

[0026] Figure 7 This is a front view of the cover opening structure of the press-type printer of the utility model installed on the printer and in the cover opening state;

[0027] Figure 8 for Figure 7 Sectional view along AA′:

[0028] Fig. 9 for Figure 8 A partial enlarged schematic diagram of point B in the middle;

[0029] Fig.10 The cooperation structure of the button and the lock core of the cover opening structure of the push-type printer of the utility model;

[0030] In the prior art figure: 1a-button, 2a-first lock core, 3a-second lock core, 4a-first buckle portion, 5a-second buckle portion, 6a-first push portion, 7a-second push portion, 8a-first force-bearing inclined surface, 9a-second force-bearing inclined surface, 10a-first resetting elastic member, 11a-second resetting elastic member, 12a-third resetting elastic member, 13a-fourth resetting elastic member;

[0031] In the figure of the utility model: 1-upper shell, 2-lower shell, 3-lock assembly, 4-buckle groove, 5-lock core, 6-button, 7-buckle portion, 8-first guide seat, 9-first guide column, 10-slide groove, 11-bolt head of bolt, 12-presser foot, 13-rest plate, 14-stop block, 15-second guide seat, 16-second guide column, 17-U-shaped groove, 18-first elastic reset device, 19-guide surface, 20-connecting shaft, 21-second elastic reset device, 22-limiting column, 23-limiting hole, 24-slider, 25-slide rail. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] Example:

[0034] like Figure 3-10 As shown, a press-type printer cover opening structure includes a lock component 3 arranged on one of the upper shell 1 and the lower shell 2 of the printer, and two buckle grooves 4 arranged on the other, the lock component 3 includes a lock core 5 and a button 6, the button 6 is fixedly arranged in the middle of the lock core 5, the lock core 5 is arranged horizontally and can be synchronously translated with the button 6, two buckle parts 7 are vertically arranged at both ends of the lock core 5, one of the buckle groove 4 and the buckle part 7 is arranged on the docking surface of the upper shell 1, and the other is arranged on the docking surface of the lower shell 2, when the upper shell 1 and the lower shell 2 are covered, the buckle part 7 is buckled and connected with the buckle groove 4, the translation direction of the lock core 5 and the disengagement direction of the buckle part 7 are consistent with the pressing direction of the button 6, when the button 6 is pressed, the lock core 5 is synchronously translated and drives the buckle part 7 to disengage from the buckle groove 4.

[0035] The press-type printer cover opening structure of the utility model only has one lock core 5, and the button 6 is directly fixed to the middle of the lock core 5, and no other connecting structure is required in the middle, so the structure is simpler; because the button 6 is directly fixed to the lock core 5, the buckle parts 7 are directly arranged at both ends of the lock core 5, and the pressing direction of the button 6, the translation direction of the lock core 5, and the disengagement direction of the buckle parts 7 are all consistent, so the pressing force of the button 6 can be directly transmitted to the lock core 5, and there is no need to add a force conversion link in the middle, so the force transmission is more reliable, and the cover opening is also more reliable; in addition, only one lock core 5 is provided, and two buckle parts 7 are provided on the same lock core 5, which is conducive to the synchronous disengagement of the two buckle parts 7 and the two buckle grooves 4, further ensuring the reliability of cover opening.

[0036] The lock core 5 is transversely arranged in the lower housing 2 and is located on the side opposite to the hinge side of the lower housing 2. The button 6 is movably embedded on the side wall of the lower housing 2 opposite to the hinge side. The buckle portion 7 is convexly arranged on the docking surface of the lower housing 2. The buckle groove 4 is arranged on the docking surface of the upper housing 1. The arrangement is reasonable in layout, easy to operate, and in line with the user's usage habits.

[0037] A first guide structure is also provided between the lower housing 2 and the two buckle parts 7, respectively, for guiding the moving direction of the buckle parts 7. This arrangement can guide the moving direction of the buckle parts 7, so that they can be reliably connected or separated from the buckle slots 4, and ensure the reliability of opening and closing the cover.

[0038] The first guide structure includes a first guide seat 8 disposed on the buckle portion 7 and a first guide column 9 disposed in the lower housing 2. The first guide seat 8 is provided with a slide groove 10. When the button 6 is pressed, the first guide column 9 slides in the slide groove 10. The first guide structure is very simple and reliable in guiding.

[0039] The first guide column 9 includes a bolt, which passes through the slide groove 10 of the first guide seat 8 and is locked on the top of the lower shell 2. The first guide seat 8 is limited in the upper and lower positions between the top of the lower shell 2 and the bolt head 11 of the bolt. Using the bolt as the first guide column 9 is not only convenient for installation, but also limits the movement of the first guide seat 8 in the upper and lower directions, so that the buckle portion 7 can be more reliably connected to or separated from the buckle groove 4.

[0040] The gap D1 between the top of the lower housing 2 and the bolt head 11 of the bolt is greater than the thickness D2 of the first guide seat 8. This arrangement can make the first guide seat 8 slide more smoothly.

[0041] An anti-sway structure is also provided between the lower shell 2 and the two buckle parts 7. This arrangement can make the first guide seat 8 more stable during the sliding process.

[0042] The anti-sway structure includes a presser foot 12, which is arranged on both sides of the buckle portion 7 opposite to the first guide seat 8. A support plate 13 is provided on one side of the buckle portion 7 close to the presser foot 12. One end of the presser foot 12 is fixed to the top of the inner side of the lower shell 2, and the other end is against the top of the support plate 13. The anti-sway structure is very simple. It only needs to arrange the presser foot 12 on the opposite side of the first guide seat 8 to well balance the shaking of the first guide seat 8.

[0043] The first guide seat 8 is arranged at the middle position of the buckle part 7, and the abutment plate 13 is arranged at the bottom end of the buckle part 7. This arrangement makes the first guide seat 8 and the abutment plate 13 of the presser foot 12 misaligned up and down, and the anti-shaking effect is better.

[0044] A stopper 14 is also provided on the abutment plate 13 on the buckle portion 7 and on the outside of the presser foot 12. This arrangement can prevent the presser foot 12 from falling off the abutment plate 13, thereby ensuring the reliability of the combination of the two.

[0045] A second guide structure is also provided between the lower housing 2 and the lock core 5, for guiding the lock core 5 to follow the translation of the button 6. This arrangement can guide the translation direction of the lock core 5, so that it assists the first guide structure and further ensures reliable connection or separation between the buckle portion 7 and the buckle groove 4.

[0046] The second guide structure includes a second guide seat 15 provided on one of the lock core 5 and the lower housing 2 and a second guide column 16 provided on the other. The second guide seat 15 is provided with a U-shaped groove 17. When the button 6 is pressed, the second guide column 16 slides in the U-shaped groove 17. In this embodiment, the second guide seat 15 is provided on the lock core 5, and the second guide column 16 is provided in the lower housing 2. The second guide structure is simple, and the second guide column 16 is conveniently installed on the second guide seat 15 through the opening of the U-shaped groove 17.

[0047] A first elastic reset device 18 is also provided between the lower housing 2 and the lock core 5, which is used to drive the lock core 5 and the button 6 to reset synchronously when the button 6 is released. In this embodiment, the first elastic reset device 18 is a torsion spring, two torsion springs are provided and are respectively located at both ends of the lock core 5. The first elastic reset device 18 can also be other elastic members such as springs. This setting can realize the automatic reset of the lock core 5 and the button 6, which is more convenient to use.

[0048] A guide surface 19 is also provided on the top of the buckle portion 7, which is used to guide the buckle portion 7 to align with the buckle slot 4 when the cover is closed, and after alignment, the buckle portion 7 is driven by the first elastic reset device 18 to snap into the buckle slot 4. With the guide surface 19 having a simple structure, the buckle portion 7 can be aligned and snapped into the buckle slot 4 when the cover is closed.

[0049] The hinged side of the lower shell 2 is hinged to the upper shell 1 through a connecting shaft 20, and a second elastic reset device 21 is provided on the connecting shaft 20. In this embodiment, the second elastic reset device 21 is a torsion spring, and two connecting shafts 20 and two torsion springs are provided. A torsion spring is provided on the connecting shaft 20 between the upper shell 1 and the lower shell 2. Since the torsion spring is pre-stressed with a certain elastic force, the upper shell 1 can be automatically opened after the buckle portion 7 is separated from the buckle groove 4, which is more convenient to use.

[0050] In this embodiment, the rear side of the lower shell 2 is hinged to the rear side of the upper shell 1, the lock core 5 is arranged in the lower shell 2 and is located at the front side, the button 6 is arranged on the front side wall of the lower shell 2, the buckle part 7 is convexly arranged on the top surface of the lower shell 2, and the buckle groove 4 is arranged on the bottom surface of the upper shell 1; the pressing direction of the button 6, the translation direction of the lock core 5, and the disengagement direction of the buckle part 7 are all front-to-back directions; the buckle part 7 is located at the rear side of both ends of the lock core 5, the first guide seat 8 is arranged at the rear side of the buckle part 7, and the presser foot 12 is arranged at the front side of the buckle part 7; the bottom of the button 6 is fixed to the lock core 5 by a limiting column 22 and a limiting hole 23, and a third guide structure is also provided between the bottom of the button 6 and the bottom of the inner side of the lower shell 2 for guiding the pressing direction of the button 6, and the third guide structure includes a slider 24 arranged on one of the bottom of the button 6 and the bottom of the lower shell 2 and a slide rail 25 arranged on the other; the front, rear, left, right, up and down directions are Figure 6 shall prevail.

[0051] The working principle of the cover opening structure of the press-type printer of the utility model is as follows:

[0052] When opening the cover, the button 6 is pressed, the lock core 5 moves synchronously with the button 6 and the buckle part 7 disengages from the buckle groove 4 along the disengaging direction. At the same time, the slider 24 of the third guide structure slides backward on the slide rail 25, the first guide column 9 of the first guide structure slides backward in the slide groove 10, and the second guide column 16 of the second guide structure slides backward in the U-shaped groove 17. After the buckle groove 4 loses the constraint of the buckle part 7, the torsion spring pre-compression on the hinge side has a certain elastic force, so that the upper shell 1 can be driven to flip upward relative to the upper shell 1 around the connecting shaft 20 to complete the cover opening action; after releasing the button 6, the first elastic reset device 18 drives the lock core 5 and the button 6 to move forward and reset; when closing the cover, the buckle groove 4 of the upper shell 1 is pressed on the buckle part 7 of the lower shell 2, and the buckle part 7 moves backward under the guidance of its own guide surface 19 to align with the buckle groove 4, and after alignment, the buckle part 7 is driven by the first elastic reset device 18 to snap into the buckle groove 4 again.

Claims

1. A press-type printer cover opening structure, comprising a lock assembly (3) arranged on one of an upper shell (1) and a lower shell (2) of the printer, and two buckle grooves (4) arranged on the other, wherein the lock assembly (3) comprises a lock core (5) and a button (6), and is characterized in that: The button (6) is fixedly arranged in the middle of the lock core (5); the lock core (5) is arranged horizontally and can move synchronously with the button (6); two buckle parts (7) are vertically arranged at both ends of the lock core (5); one of the buckle groove (4) and the buckle part (7) is arranged on the docking surface of the upper shell (1), and the other is arranged on the docking surface of the lower shell (2); when the upper shell (1) and the lower shell (2) are covered, the buckle part (7) is buckled with the buckle groove (4); the translation direction of the lock core (5) and the disengagement direction of the buckle part (7) are consistent with the pressing direction of the button (6); when the button (6) is pressed, the lock core (5) moves synchronously and drives the buckle part (7) to disengage from the buckle groove (4).

2. The cover opening structure of a press-type printer according to claim 1, characterized in that: The lock core (5) is arranged transversely in the lower shell (2) and is located on the side opposite to the hinged side of the lower shell (2); the button (6) is movably embedded in the side wall of the lower shell (2) opposite to the hinged side; the buckle portion (7) is protruding upward on the docking surface of the lower shell (2); and the buckle groove (4) is arranged on the docking surface of the upper shell (1).

3. The cover opening structure of a press-type printer according to claim 2, characterized in that: A first guiding structure is also provided between the lower shell (2) and the two buckle parts (7), respectively, for guiding the moving direction of the buckle parts (7).

4. The cover opening structure of a press-type printer according to claim 3, characterized in that: The first guide structure comprises a first guide seat (8) arranged on the buckle portion (7), and a first guide column (9) arranged in the lower shell (2); a slide groove (10) is provided on the first guide seat (8), and the first guide column (9) slides in the slide groove (10) when the button (6) is pressed.

5. The cover opening structure of a press-type printer according to claim 4, characterized in that: Anti-sway structures are also provided between the lower shell (2) and the two buckle parts (7).

6. The cover opening structure of a press-type printer according to claim 5, characterized in that: The anti-sway structure comprises a presser foot (12), the presser foot (12) and the first guide seat (8) are arranged on both sides of the buckle part (7) opposite to each other, a supporting plate (13) is provided on one side of the buckle part (7) close to the presser foot (12), one end of the presser foot (12) is fixed to the top of the inner side of the lower shell (2), and the other end is against the top of the supporting plate (13).

7. The cover opening structure of a press-type printer according to claim 2, characterized in that: A second guide structure is also provided between the lower shell (2) and the lock core (5), for guiding the lock core (5) to move in translation following the key (6).

8. The cover opening structure of a press-type printer according to claim 7, characterized in that: The second guide structure comprises a second guide seat (15) arranged on one of the lock core (5) and the lower shell (2), and a second guide column (16) arranged on the other, wherein the second guide seat (15) is provided with a U-shaped groove (17), and when the button (6) is pressed, the second guide column (16) slides in the U-shaped groove (17).

9. The cover opening structure of a press-type printer according to claim 2, characterized in that: A first elastic reset device (18) is also provided between the lower housing (2) and the lock core (5), and is used to drive the lock core (5) and the button (6) to reset synchronously when the button (6) is released.

10. The cover opening structure of a press-type printer according to claim 9, characterized in that: The top of the buckle portion (7) is also provided with a guide surface (19) for guiding the buckle portion (7) to align with the buckle slot (4) when the cover is closed, and after alignment, the buckle portion (7) is driven by the first elastic reset device (18) to snap into the buckle slot (4).

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