Opening and closing clamping mechanism of adjusting plate

Abstract

The utility model relates to the technical fields of thermal printer discloses the opening and closing of adjusting plate's clamping mechanism including adjusting plate, baffle seat, middle shell and shell, and the middle shell is equipped with paper bin, and the paper bin is equipped with lock strip, and baffle seat and paper bin slide connection, and the shell is connected with the side of middle shell far from baffle seat, and the middle part of adjusting plate is hinged with the middle part of baffle seat, when paper bin locks width, adjusting plate rotates counterclockwise relative to baffle seat, and adjusting plate is connected with lock strip, when the width of paper bin needs to be adjusted, adjusting plate rotates clockwise relative to baffle seat, and adjusting plate is separated from lock strip. The utility model's simple structure reduces production cost and assembly difficulty, and only needs to lock or unlock baffle seat by rotating adjusting plate slightly, thereby easily realizing the width adjustment of paper bin, and baffle seat is not taken down by not exerting force to move parts, thereby avoiding the damage or loss of parts, and greatly prolonging the service life of mechanism.

Description

Technical Field

[0001] This utility model relates to the technical field of thermal printers, and in particular to the opening and closing locking mechanism of the adjustment plate. Background Technology

[0002] Currently, most printers have a fixed paper tray width, which only accommodates one type of paper width, limiting the printer's versatility. Some printers feature adjustable paper trays, but these are usually assembled from multiple components. These components require considerable installation space, and the manufacturing process is complex, making repairs difficult in case of malfunction. Another type of adjustable paper tray uses a single piece of plastic for the reset plate and the baffle body. A gap exists between the reset plate and the baffle body, requiring the reset plate to be pried towards the baffle body. This allows the positioning protrusion on the outer side of the reset plate to disengage from the positioning groove, enabling the entire baffle to be pulled out. However, excessive force can easily break the baffle body and the reset plate. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and to provide an opening and closing locking mechanism for the adjusting plate.

[0004] The objective of this invention is achieved through the following technical solution: The opening and closing locking mechanism of the adjusting plate includes an adjusting plate, a baffle seat, a middle shell, and an outer shell. The middle shell is equipped with a paper tray, and the paper tray is equipped with a locking strip. The baffle seat is slidably connected to the paper tray. The outer shell is connected to the side of the middle shell away from the baffle seat. The middle part of the adjusting plate is hinged to the middle part of the baffle seat. When the paper tray width is locked, the adjusting plate rotates counterclockwise relative to the baffle seat, and the adjusting plate engages with the locking strip. When the paper tray width needs to be adjusted, the adjusting plate rotates clockwise relative to the baffle seat, and the adjusting plate separates from the locking strip. This mechanism can adjust the width of the paper tray according to the width of the printing paper, has fewer parts and a simpler structure, and reduces production costs.

[0005] A better option includes a first slide and a second slide. The paper tray is provided with a first guide groove and a second guide groove. The first slide is slidably connected to the first guide groove, and the second slide is slidably connected to the second guide groove. The bottom of the baffle seat is connected to the first slide and the second slide respectively. The first slide and the second slide allow the baffle seat to slide in a specific direction, reducing the possibility of jamming during adjustment.

[0006] A better option is that the outer shell is provided with multiple pressure strips, which are slidably connected to the first slide and the second slide respectively. These pressure strips allow the first and second slides to fit more closely to the middle shell.

[0007] A better alternative is that the baffle seat includes a baffle body, a boss seat, a positioning seat, and a sliding limit rod. The baffle body is rotatably connected to the adjusting plate, the bottom of the baffle body is connected to the top of the boss seat, the side of the boss seat protrudes from the side of the baffle body, the boss seat is slidably connected to the bottom of the adjusting plate, the positioning seat is connected to the bottom of the baffle body, the first slide and the second slide are respectively embedded in the positioning seat, and the sliding limit rod is connected to the front end of the baffle body and adjustablely connected to the front end of the adjusting plate. This baffle seat, in conjunction with the adjusting plate, enables easy multi-level width adjustment of the paper tray, reduces the number of parts, eliminates the need to remove the baffle seat, and avoids part loss.

[0008] A better option is that the first slide or the second slide includes a sliding boss, a limiting base plate, and a baffle positioning post. The sliding boss and the baffle positioning post are both connected to the limiting base plate. The sliding boss is slidably connected to the first guide groove or the second guide groove. The baffle positioning post is connected to the bottom of the baffle seat.

[0009] A better option is that the adjusting plate includes a main body, a hook, and a limiting guide groove. The main body is rotatably connected to the baffle seat. Both ends of the main body are respectively connected to the hook and the limiting guide groove. The hook can be engaged with the locking bar, and the limiting guide groove is adjustablely connected to the baffle seat.

[0010] A better option is that the locking bar includes multiple limiting locking blocks, with two adjacent limiting locking blocks forming a locking position, and the adjusting plate can engage with the locking position. This locking bar allows the baffle seat to be adjusted in multiple stages, thereby enabling the use of various sizes of printing paper.

[0011] A better option also includes an interface dust plug, which is installed in the middle housing. The interface dust plug prevents dust from entering the printer's interior.

[0012] This utility model has the following advantages and beneficial effects compared to the prior art:

[0013] This invention achieves multi-level adjustment of the paper tray through an adjusting plate, baffle seat, middle shell, and outer shell. The structure is simple, reducing production costs and assembly difficulty. The baffle seat can be locked or unlocked by simply rotating the adjusting plate, thus easily adjusting the width of the paper tray. There is no need to forcefully pry the parts to remove the baffle seat, thereby avoiding damage or loss of parts and greatly extending the service life of the mechanism. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the opening, closing, and locking mechanism of the adjusting plate of this utility model;

[0015] Figure 2 for Figure 1 A magnified view of a portion at point A;

[0016] Figure 3 This is an exploded view of the opening, closing, and locking mechanism of the adjusting plate of this utility model;

[0017] Figure 4 This is an assembly diagram of the middle shell, the first slide block, and the second slide block of the opening, closing, and locking mechanism of the adjusting plate of this utility model.

[0018] Figure 5 This is a schematic diagram of the adjusting plate of the opening, closing, and locking mechanism of the adjusting plate of this utility model;

[0019] Figure 6 This is a schematic diagram of the adjusting plate of the opening, closing, and locking mechanism of the adjusting plate of this utility model;

[0020] Figure 7 This is a schematic diagram of the baffle seat of the opening, closing and locking mechanism of the adjusting plate of this utility model;

[0021] Figure 8 This is an assembly diagram of the adjusting plate and baffle seat of the opening, closing and locking mechanism of the adjusting plate of this utility model.

[0022] Figure 9 This is a cross-sectional view of the adjusting plate and baffle seat of the opening, closing and locking mechanism of the adjusting plate of this utility model.

[0023] Figure 10 This is an assembly diagram of the adjusting plate and baffle seat of the opening, closing and locking mechanism of the adjusting plate of this utility model.

[0024] Figure 11 This is a schematic diagram of the first slide of the opening, closing and locking mechanism of the adjusting plate of this utility model;

[0025] Figure 12 This is a schematic diagram of the first slide of the opening, closing and locking mechanism of the adjusting plate of this utility model;

[0026] The components in the attached diagram are labeled as follows: 1-Adjusting plate; 101-Main body; 102-Snap-on post; 103-Hook; 104-Limit guide groove; 1041-Guide slide groove; 1042-Wrench; 1043-Adjusting groove; 2-Baffle seat; 201-Baffle body; 2011-Snap hole; 202-Boss seat; 2021-Guide surface; 203-Positioning seat; 204-Sliding limit rod; 2041 - Limiting protrusion; 3- First slide block; 301- Sliding boss; 302- Limiting base plate; 303- Baffle positioning post; 4- Second slide block; 5- Middle shell; 501- Paper compartment; 502- First guide groove; 503- Second guide groove; 504- Locking bar; 5041- Limiting locking block; 5042- Locking position; 6- Interface dust plug; 7- Outer shell; 701- Pressure strip; a- Horizontal transverse; b- Horizontal longitudinal. Detailed Implementation

[0027] The utility model objective of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments cannot be described one by one here, but the implementation of this utility model is not limited to the following embodiments.

[0028] Along the horizontal axis 'a', the arrow points to the right, and the opposite direction points to the left; along the horizontal axis 'b', the arrow points to the rear, and the opposite direction points to the front.

[0029] like Figures 1-4 As shown, the opening and closing locking mechanism of the adjusting plate includes an adjusting plate 1, a baffle seat 2, a first slide 3, a second slide 4, a middle shell 5, an interface dust plug 6, and an outer shell 7. A horizontally oriented paper tray 501 is located at the rear end of the middle shell 5. A locking bar 504 is located on the rear side of the paper tray 501, with its axial direction aligned with that of the paper tray 501. A first guide groove 502 and a second guide groove 503 are located on the lower side of the paper tray 501, and these grooves are parallel to each other. The outer shell 7 is connected to the outer side of the middle shell 5. Two rows of pressure strips 701 are located on the inner side of the outer shell 7, with three strips in each row. The axial directions of the pressure strips 701 are aligned with those of the first guide groove 502 and the second guide groove 503, respectively. The front and rear ends of the first slide 3 are slidably embedded in the first guide groove 502, and the bottom of the first slide 3 is slidably connected to the first row of pressure strips 701. The front and rear ends of the second slide block 4 are slidably connected to the second guide groove 503, and the bottom of the second slide block 4 is slidably connected to the second row of pressure bars 701. Both the first slide block 3 and the second slide block 4 are inserted into the bottom of the baffle seat 2 and connected by screws. The middle part of the adjusting plate 1 is hinged to the middle part of the baffle seat 2, and the adjusting plate 1 can rotate relative to the baffle seat 2. When the width of the paper tray 501 is locked, the adjusting plate 1 rotates counterclockwise relative to the baffle seat 2, and the adjusting plate 1 engages with the locking bar 504; when the width of the paper tray 501 needs to be adjusted, the adjusting plate 1 rotates clockwise relative to the baffle seat 2, and the adjusting plate 1 separates from the locking bar 504. The interface dust plug 6 is installed at the left end of the middle shell 5.

[0030] Adjustment plate 1 engages with locking strip 504 to restrict the movement of baffle seat 2. Baffle seat 2 restricts the left and right movement of printing paper in the horizontal direction a. First slide 3 and second slide 4 allow baffle seat 2 to slide relative to the middle shell 5. Middle shell 5 is used to install printing paper of different widths and various components. Interface dust plug 6 prevents dust from entering the printer. Outer shell 7 protects internal components.

[0031] like Figure 2As shown, the locking bar 504 includes multiple limiting locking blocks 5041, and two adjacent limiting locking blocks 5041 form a locking position 5042. When the paper tray 501 is locked in width, the adjusting plate 1 rotates counterclockwise relative to the baffle seat 2, and the adjusting plate 1 engages with the locking position 5042; when the width of the paper tray 501 needs to be adjusted, the adjusting plate 1 rotates clockwise relative to the baffle seat 2, and the adjusting plate 1 separates from the locking position 5042. The limiting locking blocks 5041 are used to restrict the adjusting plate 1 from moving left and right in the horizontal direction a.

[0032] As shown in Figures 5-10, the adjusting plate 1 includes a main plate 101, a latching post 102, a hook 103, and a limiting guide groove 104. The baffle seat 2 includes a baffle body 201, a boss seat 202, two positioning seats 203, and a sliding limiting rod 204. An arc-shaped latching post 102 is provided on the right side of the main plate 101, and a through-hole 2011 is provided on the side of the baffle body 201. The latching post 102 is embedded in the 2011, and the main plate 101 and the baffle body 201 rotate relative to each other around the latching post 102. The hook 103 is fixedly connected to the lower rear end of the main plate 101. The upper end of the boss seat 202 is fixedly connected to the baffle body 201, and the left side of the boss seat 202 protrudes above the left side of the baffle body 201 to support the main plate 101. A guide surface 2021 is provided at the rear end of the boss seat 202. The hook 103 slides along the guide surface 2021 and can hook onto the locking position 5042 of the locking bar 504. The limiting guide groove 104 is fixedly connected to the upper front end of the main body 101. The rear side of the limiting guide groove 104 is provided with a guide slide groove 1041, the inner upper side of the limiting guide groove 104 is provided with two adjustment grooves 1043, and the outer upper side of the limiting guide groove 104 is provided with a wrench 1042. The front end of the baffle body 201 is connected to the lower end of the sliding limiting rod 204, and a limiting protrusion 2041 is provided at the upper end of the sliding limiting rod 204. The sliding limit rod 204 is inserted into the guide groove 1041 of the limiting guide groove 104. The sliding limit rod 204 slides relative to the guide groove 1041 of the limiting guide groove 104. The limiting protrusion 2041 can engage in the two adjusting grooves 1043, thereby realizing the engagement or disengagement of the hook 103 and the lock 5042. Two positioning seats 203 are fixedly connected to the bottom of the boss seat 202. The two positioning seats 203 are fixedly connected to the first slide 3 and the second slide 4 respectively by screws.

[0033] As shown in Figures 11 and 12, the first slide block 3 and the second slide block 4 have mirror-symmetrical structures, each including a sliding boss 301, a limiting base plate 302, and a baffle positioning post 303. The bottom of both the sliding boss 301 and the bottom of the baffle positioning post 303 are connected to the top of the limiting base plate 302, with the sliding boss 301 located to the left of the baffle positioning post 303. The bottom of the limiting base plate 302 is slidably connected to the first pressure strip 701. The front and rear ends of the sliding boss 301 are slidably connected to the first guide groove 502. The baffle positioning post 303 is fixedly connected to the positioning seat 203 of the baffle seat 2 by screws.

[0034] The working process of the opening, closing, and locking mechanism of the adjusting plate is as follows: When the width of the paper tray 501 needs to be adjusted, the lever 1042 of the adjusting plate 1 is turned clockwise. The adjusting plate 1 rotates relative to the baffle seat 2 with the locking post 102 as the center. The limiting guide groove 104 of the adjusting plate 1 slides relative to the sliding limiting rod 204 of the baffle seat 2. The limiting protrusion 2041 is engaged in the adjusting groove 1043 away from the lever 1042. At this time, the hook 103 of the adjusting plate 1 disengages from the locking bar 504 of the middle shell 5. Moving the baffle seat 2 causes the first slide 3 and the second slide 4 to slide relative to each other in the first guide groove 502 and the second guide groove 503 of the middle shell 5. When the width of the paper tray 501 is suitable, the movement of the baffle seat 2 is stopped. Push the wrench 1042 of the adjustment plate 1 to rotate counterclockwise. The limiting guide groove 104 of the adjustment plate 1 slides relative to the sliding limiting rod 204 of the baffle seat 2, and the hook 103 slides along the guide surface 2021 of the boss seat 202. The limiting protrusion 2041 is engaged in the adjustment groove 1043 near the wrench 1042, and at the same time the hook 103 is engaged in the locking position 5042, thus completing the width adjustment of the paper tray 501.

[0035] The above-described specific embodiments are preferred embodiments of this utility model and are not intended to limit this utility model. Any other changes or equivalent substitutions made without departing from the technical solution of this utility model are included within the protection scope of this utility model.

Claims

1. The opening, closing, and locking mechanism of the adjusting plate, characterized in that: The device includes an adjusting plate (1), a baffle seat (2), a middle shell (5), and an outer shell (7). The middle shell (5) has a paper tray (501), and the paper tray (501) has a locking bar (504). The baffle seat (2) is slidably connected to the paper tray (501). The outer shell (7) is connected to the side of the middle shell (5) away from the baffle seat (2). The middle part of the adjusting plate (1) is hinged to the middle part of the baffle seat (2). When the width of the paper tray (501) is locked, the adjusting plate (1) rotates counterclockwise relative to the baffle seat (2), and the adjusting plate (1) is engaged with the locking bar (504). When the width of the paper tray (501) needs to be adjusted, the adjusting plate (1) rotates clockwise relative to the baffle seat (2), and the adjusting plate (1) is separated from the locking bar (504).

2. The opening, closing, and locking mechanism of the adjusting plate according to claim 1, characterized in that: It also includes a first slide (3) and a second slide (4). The paper tray (501) is provided with a first guide groove (502) and a second guide groove (503). The first slide (3) is slidably connected to the first guide groove (502), and the second slide (4) is slidably connected to the second guide groove (503). The bottom of the baffle seat (2) is connected to the first slide (3) and the second slide (4) respectively.

3. The opening, closing, and locking mechanism of the adjusting plate according to claim 2, characterized in that: The outer shell (7) is provided with multiple pressure strips (701), and the multiple pressure strips (701) are slidably connected to the first slide (3) and the second slide (4) respectively.

4. The opening, closing, and locking mechanism of the adjusting plate according to claim 2, characterized in that: The baffle seat (2) includes a baffle body (201), a boss seat (202), a positioning seat (203), and a sliding limit rod (204). The baffle body (201) is rotatably connected to the adjusting plate (1). The bottom of the baffle body (201) is connected to the top of the boss seat (202). The side of the boss seat (202) protrudes from the side of the baffle body (201). The boss seat (202) is slidably connected to the bottom of the adjusting plate (1). The positioning seat (203) is connected to the bottom of the baffle body (201). The first slide (3) and the second slide (4) are respectively embedded in the positioning seat (203). The sliding limit rod (204) is connected to the front end of the baffle body (201). The sliding limit rod (204) is adjustablely connected to the front end of the adjusting plate (1).

5. The opening, closing, and locking mechanism of the adjusting plate according to claim 2, characterized in that: The first slide (3) or the second slide (4) includes a sliding boss (301), a limiting base plate (302) and a baffle positioning post (303). The sliding boss (301) and the baffle positioning post (303) are both connected to the limiting base plate (302). The sliding boss (301) is slidably connected to the first guide groove (502) or the second guide groove (503). The baffle positioning post (303) is connected to the bottom of the baffle seat (2).

6. The opening, closing, and locking mechanism of the adjusting plate according to claim 1, characterized in that: The adjusting plate (1) includes a main body (101), a hook (103) and a limiting guide groove (104). The main body (101) is rotatably connected to the baffle seat (2). The two ends of the main body (101) are respectively connected to the hook (103) and the limiting guide groove (104). The hook (103) can be engaged with the locking bar (504). The limiting guide groove (104) is adjustablely connected to the baffle seat (2).

7. The opening, closing, and locking mechanism of the adjusting plate according to claim 1, characterized in that: The locking bar (504) includes multiple limiting locking blocks (5041), and two adjacent limiting locking blocks (5041) form a locking position (5042). The adjusting plate (1) can be engaged with the locking position (5042).

8. The opening, closing, and locking mechanism of the adjusting plate according to claim 1, characterized in that: It also includes an interface dust plug (6), which is installed on the middle shell (5).

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