Printer structure with stable structure installation

Abstract

The invention discloses a printer structure with stable structure installation, which comprises a printer middle frame, a base, a machine core and a front cover, a flip cover structure is arranged on the printer middle frame, a positioning assembly is arranged between the printer middle frame and the machine core, and a limiting locking structure for locking the machine core is arranged between the printer middle frame and the front cover. A base positioning assembly and an anti-retreating assembly are arranged between the base and the printer middle frame, an auxiliary cover opening assembly is arranged between the cover turning structure and the printer middle frame, and a cover turning stabilizing structure is arranged between the cover turning structure and the printer middle frame. Precise assembly and stable fixation of all parts of the printer are achieved, and the assembly efficiency and the equipment use reliability are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thermal desktop ticket printers, in particular to a printer structure with stable structure installation. BACKGROUND

[0002] As a common device in the fields of commercial retail, catering, medical treatment and the like, the thermal desktop ticket printer directly affects the printing quality and the service life of the device due to the stability of the structure installation. At present, the structure installation of the traditional thermal desktop ticket printer has many defects: the traditional core is usually fixed by screws, and the screw holes need to be aligned multiple times during installation, the assembly steps are complicated, and there is no precise guide structure, which is prone to installation deviation, resulting in core shaking during printing and affecting the printing clarity; the locking effect of the front cover on the core depends on single screw connection, and the screw is prone to loosening after long-term use, which cannot effectively limit the movement of the core in the up-down, front-back and left-right directions, thereby causing the printing position deviation; the base installation has no special positioning and anti-backout structure, and is only fixed by simple buckles or screws, so that the base is prone to left-right deviation or front-back disengagement in the device carrying or vibration environment, affecting the overall stability of the device; the traditional flip cover is fixed by screw springs, and the assembly process is complicated, and the flip cover is prone to vibration noise during printer operation, and the opening operation needs to be assisted by external force to pull and pry, which is poor in operation convenience.

[0003] Therefore, the existing thermal desktop ticket printer technology needs to be further improved. SUMMARY

[0004] The purpose of the present application is to provide a printer structure with stable structure installation, which realizes the precise assembly and stable fixation of the components of the printer by optimizing the positioning, locking, anti-backout and flip cover stability structure, and improves the assembly efficiency and the reliability of the device in use.

[0005] In order to achieve the above purpose, the following scheme is adopted: a printer structure with stable structure installation, comprising a printer middle frame, a base, a core and a front cover, a flip cover structure is arranged on the printer middle frame, a positioning assembly is arranged between the printer middle frame and the core, a limiting and locking structure for locking the core is arranged between the printer middle frame and the front cover, a base positioning assembly and an anti-backout assembly are arranged between the base and the printer middle frame, an auxiliary cover opening assembly is arranged between the flip cover structure and the printer middle frame, and a flip cover stability structure is arranged between the flip cover structure and the printer middle frame.

[0006] Further, the positioning assembly comprises a plurality of core positioning pins arranged on the printer middle frame, a plurality of core positioning holes capable of being fitted and installed with a corresponding core positioning pin are arranged at the bottom of the core, and a core guide block for guiding the core into the printer middle frame is further included.

[0007] Further, the limiting and locking structure comprises a plurality of positioning ribs arranged on both sides of the printer middle frame, a plurality of buckle structures are arranged on both sides of the front cover, the front cover is mounted on the upper surface of the core and is locked in the upward movement direction of the core by the cooperation of the positioning ribs and the corresponding buckle structure, a movement preventing fixed strip is arranged on the edge of the front cover, a limiting groove is arranged on the edge of the printer middle frame to limit the movement of the movement preventing fixed strip, the movement preventing fixed strip and the limiting groove cooperate to limit the forward and backward movement of the front cover, and a positioning pin for limiting left and right movement is arranged on the upper cover of the front cover.

[0008] Further, the base positioning assembly comprises a side buckle plate arranged on both sides of the printer middle frame, a side positioning plate arranged on both sides of the base, the side buckle plate and the side positioning plate cooperate to limit the left and right movement of the base, a front positioning hole is arranged on the front end of the printer middle frame, a retreat preventing buckle plate is arranged on the front end of the base, the retreat preventing buckle plate is mounted in the front positioning hole to limit the forward and backward movement of the base, a positioning circular hole is arranged on the base along the height direction, and a positioning column is arranged on the printer middle frame along the height direction, the positioning column is inserted into the corresponding positioning circular hole.

[0009] Further, the retreat preventing assembly comprises an opening arranged on the rear side of the printer middle frame for the forward movement of the right rear of the base, a retreat preventing boss is arranged on the opening, a retreat preventing buckle groove is arranged on the rear end of the base, the retreat preventing buckle groove can be mounted in the retreat preventing boss to limit the base, a guide inclined surface is arranged on the front side edge of the retreat preventing buckle groove to facilitate the entry of the retreat preventing boss into the retreat preventing buckle groove, a pushing positioning pin is arranged on the rear end of the base in the longitudinal direction, a pushing positioning hole is arranged on the rear end of the printer middle frame, and when the base is installed forwardly, the pushing positioning pin enters into the corresponding pushing positioning hole.

[0010] Further, the flip cover structure comprises a hinge seat arranged on the printer middle frame, and further comprises a flip cover, a hinge hole is arranged on both sides of the flip cover, the hinge hole is mounted in the hinge seat to rotate, and an angle positioning device for fixing the opening angle is arranged between the hinge hole and the hinge seat.

[0011] Further, the auxiliary cover opening assembly comprises a key hole arranged on the flip cover, a key arc-shaped notch is arranged on one side of the key hole, a flip cover key is mounted in the key hole, a key rotating shaft is arranged at the tail of the flip cover key, the key rotating shaft is clamped in the key arc-shaped notch to rotate, a top pressing part is arranged at the tail of the flip cover key, and a contact surface for supporting the top pressing part is arranged in the printer middle frame.

[0012] Further, the flip cover stabilizing structure comprises a stabilizing boss arranged in the printer middle frame, and a stabilizing slot arranged on the flip cover and capable of being aligned with the stabilizing boss when the flip cover is closed.

[0013] To sum up, the present application has the following advantages over the prior art: The present application solves the problems existing in the prior art of thermal table ticket printer, and has the following advantages: simple and efficient assembly, reduced number of screws, simplified assembly steps, improved assembly efficiency, reduced labor cost and assembly difficulty, stable and reliable installation, multi-directional positioning and locking structure to ensure accurate installation of components and prevent loosening, no component deviation after vibration test, improved equipment stability, good shockproof and anti-backout effect, design of the movement overall housing, flip cover stabilizing device and base anti-backout structure to effectively absorb vibration energy, avoid abnormal noise during equipment operation, prevent the base from being detached, and improve the service life of the equipment, auxiliary cover opening component to open the flip cover without external force, angle positioning device for convenient maintenance and improved user experience. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a printer middle frame and front cover assembly schematic diagram of the present application; Figure 2 It is a movement structure schematic diagram of the present application; Figure 3 It is a front cover structure schematic diagram of the present application; Figure 4 It is a printer middle frame schematic diagram one of the present application; Figure 5 It is a printer middle frame and base assembly schematic diagram of the present application; Figure 6 It is a printer middle frame and base assembly sectional view of the present application; Figure 7 It is a Figure 6 It is a A place anti-backout structure partial enlarged schematic diagram of the present application; Figure 8 It is a Figure 6 It is a B place anti-backout structure partial enlarged schematic diagram of the present application; Figure 9 It is a printer middle frame schematic diagram two of the present application; Figure 10 It is a base structure schematic diagram of the present application; Figure 11 It is a printer middle frame and flip cover structure assembly schematic diagram of the present application; Figure 12 It is a printer middle frame and flip cover structure assembly sectional view of the present application; Figure 13A schematic view of the key structure of the present application; Figure 14 A schematic view of the flip cover structure of the present application. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0016] Please refer to Figures 1-14 The present application provides a stable printer structure, which comprises a printer middle frame 1, a base 30, a core 2 and a front cover 20. A flip cover structure 7 is arranged on the printer middle frame 1. A positioning assembly 3 is arranged between the printer middle frame 1 and the core 2. A limiting and locking structure 4 for locking the core 2 is arranged between the printer middle frame 1 and the front cover 20. A base positioning assembly 5 and a retreat prevention assembly 6 are arranged between the base 30 and the printer middle frame 1. An auxiliary cover opening assembly 8 is arranged between the flip cover structure 7 and the printer middle frame 1. A flip cover stabilizing structure 9 is arranged between the flip cover structure 7 and the printer middle frame 1. The printer middle frame 1 is used as a core assembly carrier. The core 2 is precisely positioned with the middle frame by the positioning assembly 3. The front cover 20 is locked with the core 2 by the limiting and locking structure 4 to prevent displacement. The positioning and retreat prevention of the base 30 and the middle frame are completed by the base positioning assembly 5 and the retreat prevention assembly 6. The operation convenience of the flip cover structure 7 is improved by the auxiliary cover opening assembly 8. The stability of the closed flip cover 701 is ensured by the flip cover stabilizing structure 9. Finally, the overall installation stability of the components of the printer is realized.

[0017] The positioning assembly 3 comprises a plurality of core positioning pins 303 arranged on the printer middle frame 1. A plurality of core positioning holes 301 capable of being fitted with the corresponding core positioning pins 303 are arranged at the bottom of the core 2. The positioning assembly 3 further comprises a core guide block 302 for guiding the core 2 to enter the printer middle frame 1. The core guide block 302 of the positioning assembly 3 guides the process of the core 2 entering the printer middle frame 1, and assists the core 2 to quickly find the installation position. Then, the core positioning pins 303 on the printer middle frame 1 are inserted into the core positioning holes 301 at the bottom of the core 2 one by one. The precise positioning of the core 2 in the middle frame is realized by the pin hole cooperation, and the installation deviation of the core 2 is avoided.

[0018] The limiting and locking structure 4 comprises a plurality of positioning ribs 401 arranged on both sides of the printer middle frame 1, a plurality of buckle structures 402 arranged on both sides of the front cover 20, the front cover 20 being mounted on the upper surface of the core 2 and being locked in the upward moving direction of the core 2 by cooperating with the positioning ribs 401 and the corresponding buckle structure 402, the front cover 20 being provided with a movement preventing fixed strip 403 at the edge, the printer middle frame 1 being provided with a limiting groove 404 limiting the movement of the movement preventing fixed strip 403, the movement preventing fixed strip 403 and the limiting groove 404 cooperating to limit the front and back movement of the front cover 20, and the front cover 20 being provided with a positioning pin 405 for limiting the left and right movement; in the limiting and locking structure 4, the buckle structures 402 on both sides of the front cover 20 cooperate with the positioning ribs 401 on both sides of the printer middle frame 1 to lock the core 2 from the top and bottom direction and limit the upward movement thereof; the movement preventing fixed strip 403 at the edge of the front cover 20 is embedded into the limiting groove 404 at the edge of the middle frame to limit the front and back movement of the front cover 20 and the core 2; and the positioning pin 405 on the upper cover of the front cover 20 further limits the left and right movement, so that the core 2 is stably locked through multi-directional limiting.

[0019] The base positioning assembly 5 comprises a side buckle plate 501 arranged on both sides of the printer middle frame 1, a side positioning plate 502 arranged on both sides of the base 30, the side buckle plate 501 and the side positioning plate 502 cooperating to limit the left and right movement of the base 30, a front positioning hole 503 arranged at the front end of the printer middle frame 1, a retreat preventing buckle plate 504 arranged at the front end of the base 30, the retreat preventing buckle plate 504 being installed in the front positioning hole 503 to limit the front and back movement of the base 30, a positioning circular hole 505 arranged on the base 30 along the height direction, and a positioning column 506 arranged on the printer middle frame 1 along the height direction, the positioning column 506 being inserted into the corresponding positioning circular hole 505; in the base positioning assembly 5, the side buckle plates 501 on both sides of the printer middle frame 1 cooperate with the side positioning plates 502 on both sides of the base 30 to limit the left and right movement of the base 30; the front positioning hole 503 at the front end of the middle frame cooperates with the retreat preventing buckle plate 504 at the front end of the base 30 to limit the front and back movement of the base 30; and the positioning column 506 on the middle frame is inserted into the positioning circular hole 505 of the base 30 to position from the height direction, so that the base 30 is precisely positioned through multi-dimensional cooperation.

[0020] The anti-retreating assembly 6 includes an opening 601 arranged on the rear side of the printer middle frame 1 for the forward movement of the base 30 into, an anti-retreating boss 602 arranged on the opening 601, an anti-retreating slot 603 arranged at the rear end of the base 30, the anti-retreating slot 603 can be installed in the anti-retreating boss 602 to limit the base 30, a guide slope 604 arranged at the front side edge of the anti-retreating slot 603 to facilitate the anti-retreating boss 602 to enter the anti-retreating slot 603, a pushing positioning pin 605 arranged longitudinally at the rear end of the base 30, and a pushing positioning hole 606 arranged at the rear end of the printer middle frame 1, the pushing positioning pin 605 enters the corresponding pushing positioning hole 606 when the base 30 is installed forwardly.

[0021] The flip cover structure 7 includes a hinge seat arranged on the printer middle frame 1, and a flip cover 701, the flip cover 701 is provided with hinge holes 702 arranged on both sides, the hinge holes 702 are installed in the hinge seat to rotate, and an angle positioning device is arranged between the hinge holes 702 and the hinge seat to fix the opening angle.

[0022] The auxiliary cover opening assembly 8 comprises a key hole 708 arranged on the flip cover 701, one side of the key hole 708 is provided with a key arc-shaped notch 703, a flip cover key 704 is arranged in the key hole 708, the tail of the flip cover key 704 is provided with a key rotating shaft 705, the key rotating shaft 705 is clamped and rotated in the key arc-shaped notch 703, the tail of the flip cover key 704 is provided with a top pressing part 706, and the printer middle frame 1 is provided with a contact surface 707 for supporting the top pressing part 706; in the auxiliary cover opening assembly 8, the flip cover key 704 is clamped in the key arc-shaped notch 703 of the flip cover 701 through the key rotating shaft 705 and can rotate along the notch; when the flip cover key 704 is pressed, the top pressing part 706 at the tail interacts with the contact surface 707 of the printer middle frame 1, an upward thrust is generated, the flip cover 701 is driven to rotate around the hinge seat, and convenient cover opening is realized.

[0023] The flip cover stabilizing structure 9 comprises a stabilizing boss 901 arranged in the printer middle frame 1, and the flip cover 701 is provided with a stabilizing slot 902 which can be aligned with the stabilizing boss 901 when the flip cover 701 is closed; in the flip cover stabilizing structure 9, when the flip cover 701 is closed, the stabilizing boss 901 in the printer middle frame 1 is accurately aligned with and embedded in the stabilizing slot 902 on the flip cover 701, mechanical positioning is formed, the shaking of the flip cover 701 after being closed is reduced, and the shockproof design is matched to avoid abnormal noise of the flip cover 701 during printer operation, and the use stability is improved.

[0024] The main body material of the flip cover 701 is glass fiber reinforced polybutylene terephthalate PBT+30% GF, and a modified ethylene propylene diene rubber EPDM buffer layer with a thickness of 0.8-1.2mm is integrally injection molded at the edge part of the flip cover 701 in contact with the printer middle frame 1; the Shore hardness of the modified EPDM buffer layer is 50-60HA, the surface thereof is roughened by plasma treatment to form rough lines, the average depth of the rough lines is 8-15μm, the inner wall of the stabilizing slot 902 is coated with a nanoscale silicon dioxide coating by laser etching, and the thickness of the nanoscale silicon dioxide coating is 30-50nm.

[0025] The surface layer of the anti-backout boss 602 is provided with a chemical nickel-phosphorus alloy layer, the phosphorus content of the chemical nickel-phosphorus alloy layer is 8%-12%, the thickness is 15-25 microns, and a polytetrafluoroethylene (PTFE) wear-resistant coating is sprayed on the surface of the chemical nickel-phosphorus alloy layer, the thickness of the PTFE wear-resistant coating is 5-8 microns; the inner wall of the anti-backout groove 603 of the base 30 is made of carbon fiber reinforced polyether ether ketone (PEEK) + 20% CF material, and the contact surface of the anti-backout groove 603 and the anti-backout boss 602 is provided with an arc-shaped transition structure, the radius of the arc-shaped transition structure is 0.3-0.5 mm.

[0026] The basic principles and main features of the present application and the advantages of the present application are shown and described above, and those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A structural installation stable printer structure comprising a printer middle frame (1), a base (30), a core (2) and a front cover (20), a flip cover structure (7) is arranged on the printer middle frame (1), characterized in that: The printer middle frame (1) and the machine core (2) are provided with a positioning assembly (3), the printer middle frame (1) and the front cover (20) are provided with a limiting locking structure (4) for locking the machine core (2), the base (30) and the printer middle frame (1) are provided with a base positioning assembly (5) and a retreat prevention assembly (6), the flip cover structure (7) and the printer middle frame (1) are provided with an auxiliary cover opening assembly (8), the flip cover structure (7) and the printer middle frame (1) are provided with a flip cover stabilizing structure (9).

2. A structural mounting stability printer structure as claimed in claim 1, wherein: The positioning assembly (3) comprises a plurality of machine core positioning pins (303) arranged on the printer middle frame (1), a plurality of machine core positioning holes (301) capable of being fitted and installed with corresponding machine core positioning pins (303) are arranged at the bottom of the machine core (2), and a machine core guide block (302) for guiding the machine core (2) to enter the printer middle frame (1) is further included.

3. A structural mounting stability printer structure as claimed in claim 2, wherein: The limiting locking structure (4) comprises a plurality of positioning ribs (401) arranged on both sides of the printer middle frame (1), a plurality of buckle structures (402) are arranged on both sides of the front cover (20), the front cover (20) is installed on the upper surface of the machine core (2) and is locked in the upward movement direction of the machine core (2) by cooperating with the corresponding buckle structure (402) and the positioning rib (401), a movement prevention fixing strip (403) is arranged on the edge of the front cover (20), a limiting groove (404) is arranged on the edge of the printer middle frame (1) to limit the movement of the movement prevention fixing strip (403), the movement prevention fixing strip (403) and the limiting groove (404) cooperate to limit the forward and backward movement of the front cover (20), and a positioning pin (405) for limiting left and right movement is arranged on the upper cover of the front cover (20).

4. A structural mounting stability printer structure as claimed in claim 3, wherein: The base positioning assembly (5) comprises a side buckle plate (501) arranged on each side of the printer middle frame (1), a side positioning plate (502) arranged on each side of the base (30), the side buckle plate (501) and the side positioning plate (502) cooperate to limit the left and right movement of the base (30), a front positioning hole (503) is arranged at the front end of the printer middle frame (1), a retreat prevention buckle plate (504) is arranged at the front end of the base (30), the retreat prevention buckle plate (504) is installed in the front positioning hole (503) to limit the forward and backward movement of the base (30), a positioning circular hole (505) is arranged on the base (30) in the height direction, and a positioning column (506) is arranged on the printer middle frame (1) in the height direction, the positioning column (506) is inserted into the corresponding positioning circular hole (505).

5. A structural mounting stability printer structure as claimed in claim 4, wherein: The anti-retreating assembly (6) comprises an opening (601) provided on the rear side of the printer middle frame (1) for the right rear of the base (30) to move forward into, an anti-retreating boss (602) is arranged on the opening (601), an anti-retreating slot (603) is arranged at the rear end of the base (30), the anti-retreating slot (603) can be installed in the anti-retreating boss (602) to limit the base (30), a guide slope (604) is arranged on the front side edge of the anti-retreating slot (603) to facilitate the anti-retreating boss (602) to enter the anti-retreating slot (603), a pushing positioning pin (605) is arranged longitudinally at the rear end of the base (30), and a pushing positioning hole (606) is arranged at the rear end of the printer middle frame (1), when the base (30) is installed forward, the pushing positioning pin (605) enters the corresponding pushing positioning hole (606).

6. A structural mounting stability printer structure as claimed in claim 5, wherein: The flip cover structure (7) comprises a hinge seat arranged on the printer middle frame (1), and a flip cover (701), hinge holes (702) are arranged on both sides of the flip cover (701), the hinge holes (702) are installed in the hinge seat to rotate, and an angle positioning device for fixing an opening angle is arranged between the hinge holes (702) and the hinge seat.

7. A structural mounting stability printer structure according to claim 6, wherein: The auxiliary cover opening assembly (8) comprises a key hole (708) arranged on the flip cover (701), a key arc-shaped notch (703) is arranged on one side of the key hole (708), a flip cover key (704) is installed in the key hole (708), a key rotating shaft (705) is arranged at the tail of the flip cover key (704), the key rotating shaft (705) is clamped in the key arc-shaped notch (703) to rotate, a pressing part (706) is arranged at the tail of the flip cover key (704), and a contact surface (707) for supporting the pressing part (706) is arranged in the printer middle frame (1).

8. A structural mounting stability printer structure according to claim 7, wherein: The flip cover stabilizing structure (9) comprises a stabilizing boss (901) arranged in the printer middle frame (1), and a stabilizing slot (902) arranged on the flip cover (701) and aligned with the stabilizing boss (901) when the flip cover (701) is closed.

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