Portable thermal printer buckle structure

Abstract

The utility model relates to the technical field of thermal printers, in particular to a portable thermal printer buckle structure, which comprises a shell and a shell cover, and is characterized in that a movable shaft is fixedly mounted at the rear part of the shell, the shell cover is movably mounted with the shell through the movable shaft, positioning pieces are arranged on the left side and the right side of the front part in the shell, and the positioning pieces are movably mounted on the shell through the movable shaft. The shell cover and the shell are fixedly installed through the two positioning pieces. According to the buckle structure of the portable thermal printer, the shell cover is preliminarily installed in place by clamping the buckle in the clamping groove, and the buckle and the clamping groove are further fixed by pushing the plug pin to be clamped in the insertion hole through the elastic force of the spring, so that the shell cover is rapidly installed, the structure is simple, parts are reduced, and the cost is reduced. And meanwhile, when the shell cover is disassembled, the plug pins are separated from the insertion holes and stored in the built-in grooves through compression of the springs, and then the shell cover and the shell can be disassembled, so that quick disassembly of the shell cover is achieved, operation is convenient, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal printers, in particular to a buckle structure of a portable thermal printer. Background Art

[0002] Thermal printing technology was first used in fax machines. Its basic principle is to convert the data received by the printer into a dot matrix signal to control the heating of the thermal unit, and heat and develop the thermal coating on the thermal paper. Thermal printers can only use special thermal paper. The thermal paper is coated with a coating that changes color when exposed to heat, similar to photosensitive film, but this coating changes color when exposed to heat. Thermal printing technology emerged by utilizing this characteristic of the thermal coating.

[0003] Thermal printing is widely used in POS terminal systems, banking systems, express delivery, supermarkets, etc. due to its portability. Thermal printing is used in the education system for printing wrong questions due to its portability and low cost. The existing portable thermal printer includes a shell, and a decorative shell is installed on the upper part of the shell. In order to realize the disassembly and assembly of the decorative shell, the existing device shell is mainly fixed to the shell by screws, and screw columns for screw assembly need to be provided in the shell. This method increases the internal structure of the shell and requires additional fasteners, screws and tools for disassembly and assembly. The operation is cumbersome and cannot meet the requirements of quick removal and replacement of the decorative shell. Therefore, we propose a snap-on structure for a portable thermal printer. Utility Model Content

[0004] The main purpose of the utility model is to provide a portable thermal printer buckle structure, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A portable thermal printer snap-on structure comprises a shell and a shell cover, characterized in that a movable shaft is fixedly installed at the rear of the shell, the shell cover is movably installed with the shell through the movable shaft, positioning pieces are arranged on both the left and right sides of the front inner part of the shell, and the shell cover is fixedly installed with the shell through two positioning pieces.

[0007] Preferably, buckles are fixedly installed on both sides of the lower front end of the shell cover, and slots for cooperating with the buckles are provided on both sides of the upper front end of the shell body, and the buckles are fixedly connected in the slots through positioning pieces.

[0008] Preferably, guide grooves are provided at both left and right ends of the shell, and built-in grooves communicating with the inside of the guide grooves are provided on both left and right sides of the shell, and the positioning member is slidably connected in the guide grooves and the built-in grooves.

[0009] Preferably, the positioning member includes a latch, which is slidably connected in the built-in groove, a spring is fixedly installed at the rear end of the latch, the rear end of the spring is fixedly connected to the inner wall of the built-in groove, a guide column is integrally formed on the outer surface of the latch, the guide column is slidably connected to the guide groove, a stop block is fixedly installed on the end surface of the guide column away from the latch, and the stop block is located on the outer surface of the shell.

[0010] Preferably, a socket for use with a latch is provided at the middle of the rear end of each of the two buckles.

[0011] Preferably, the latch penetrates the rear slot wall of the slot and is sleeved in the insertion hole to fix the buckle in the slot.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The shell cover is initially installed in place by snapping the buckle into the slot, and then the elastic force of the spring is used to push the pin into the socket to further fix the buckle and the slot, thereby realizing the rapid installation of the shell cover, with a simple structure, reduced parts and reduced costs.

[0014] 2. When disassembling the shell cover, you only need to push the stopper backwards, and the guide column slides in the guide groove through the stopper. The spring is compressed to separate the pin from the socket and store it in the built-in groove, so that the shell cover and the shell can be disassembled. Since the movable shaft movably connects the shell cover and the shell, the shell cover can be quickly disassembled, and disassembly and assembly can be achieved without using additional fasteners, screws and tools. It is easy to operate and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a closed state of a shell cover of a portable thermal printer snap-on structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the open state of the shell cover of the snap-fit ​​structure of a portable thermal printer of the utility model;

[0017] Figure 3 This is a schematic diagram of the connection between the built-in slot and the shell of a portable thermal printer buckle structure of the utility model;

[0018] Figure 4 The utility model is a schematic structural diagram of a positioning member of a snap-fit ​​structure of a portable thermal printer.

[0019] In the figure: 1, shell; 2, shell cover; 3, movable shaft; 4, positioning piece; 5, buckle; 6, socket; 7, slot; 11, guide slot; 12, built-in slot; 41, latch; 42, spring; 43, guide column; 44, stopper. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] A portable thermal printer snap-on structure comprises a shell 1 and a shell cover 2. A movable shaft 3 is fixedly installed at the rear of the shell 1. The shell cover 2 is movably installed with the shell 1 through the movable shaft 3, so that the shell cover 2 can be folded and unfolded. Positioning members 4 are arranged on both the left and right sides of the front inner part of the shell 1. The shell cover 2 is fixedly installed with the shell 1 through the two positioning members 4.

[0025] In this embodiment, buckles 5 are fixedly installed on the left and right sides of the front lower end of the shell cover 2, and slots 7 used in conjunction with the buckles 5 are provided on the left and right sides of the front upper end of the shell 1. The shell cover 2 is initially installed in place by snapping the buckles 5 into the slots 7, and the buckles 5 are fixedly connected to the slots 7 through the positioning member 4; guide grooves 11 are provided on the left and right ends of the shell 1, and built-in grooves 12 communicating with the inside of the guide grooves 11 are provided on the left and right sides of the shell 1, and the positioning member 4 is slidably connected in the guide grooves 11 and the built-in grooves 12; the positioning member 4 includes a latch 41, which is slidably connected in the built-in groove 12, and a spring 42 is fixedly installed at the rear end of the latch 41, and the rear end of the spring 42 is fixedly connected to the inner wall of the built-in groove 12, and the latch 41 is separated from the socket 6 and stored in the built-in groove 12 by compression of the spring 42. The shell cover 2 and the shell body 1 can be disassembled by inserting the screw into the groove 12, and the disassembly and assembly can be realized without using additional fasteners, screws and tools. The operation is convenient and the practicability is strong. The outer surface of the latch 41 is integrally formed with a guide column 43, and the guide column 43 is slidably connected with the guide groove 11. The end surface of the guide column 43 away from the latch 41 is fixedly installed with a stopper 44, and the stopper 44 is located on the outer surface of the shell body 1, which is convenient for operation; the middle part of the rear end of the two buckles 5 is provided with a socket 6 used in conjunction with the latch 41; the latch 41 passes through the rear groove wall of the card slot 7 and is sleeved in the socket 6 to fix the buckle 5 in the card slot 7, and the elastic force of the spring 42 is used to push the latch 41 to be engaged in the socket 6 to realize further fixation of the buckle 5 and the card slot 7, thereby realizing the rapid installation of the shell cover 2, the structure is simple, the parts are reduced, and the cost is reduced.

[0026] It should be noted that the utility model is a snap-on structure for a portable thermal printer. During use, when the shell cover 2 is installed and positioned, the shell cover 2 is initially installed in place by snapping the snap-on 5 into the slot 7, and then the elastic force of the spring 42 is used to push the latch 41 into the socket 6 to further fix the snap-on 5 and the slot 7, thereby realizing the rapid installation of the shell cover 2. The structure is simple, the parts are reduced, and the cost is reduced. At the same time, when disassembling the shell cover 2, it is only necessary to push the block 44 backwards, and the guide column 43 is made to slide in the guide groove 11 through the block 44. The spring 42 is compressed to separate the latch 41 from the socket 6 and store it in the built-in groove 12, so that the shell cover 2 can be disassembled from the shell body 1. Since the movable shaft 3 movably connects the shell cover 2 to the shell body 1, the shell cover 2 can be quickly disassembled, and disassembly and assembly can be realized without using additional fasteners, screws and tools. The operation is convenient and the practicability is strong.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A portable thermal printer buckle structure, comprising a housing (1) and a housing cover (2), characterized in that: A movable shaft (3) is fixedly mounted on the rear of the shell (1), the shell cover (2) is movably mounted on the shell (1) via the movable shaft (3), positioning members (4) are provided on both left and right sides of the front of the shell (1), and the shell cover (2) is fixedly mounted on the shell (1) via the two positioning members (4); Buckles (5) are fixedly mounted on both left and right sides of the front lower end of the shell cover (2), and slots (7) for use with the buckles (5) are provided on both left and right sides of the front upper end of the shell body (1), and the buckles (5) are fixedly connected in the slots (7) via positioning members (4).

2. The portable thermal printer buckle structure according to claim 1, characterized in that: The left and right ends of the shell (1) are both provided with guide grooves (11), the left and right sides of the shell (1) are both provided with built-in grooves (12) which are in communication with the inside of the guide groove (11), and the positioning member (4) is slidably connected in the guide groove (11) and the built-in groove (12).

3. The buckle structure of a portable thermal printer according to claim 1, characterized in that: The positioning member (4) comprises a latch (41), the latch (41) being slidably connected in the built-in groove (12), a spring (42) being fixedly mounted at the rear end of the latch (41), the rear end of the spring (42) being fixedly connected to the inner wall of the built-in groove (12), a guide column (43) being integrally formed on the outer surface of the latch (41), the guide column (43) being slidably connected to the guide groove (11), a stopper (44) being fixedly mounted on the end surface of the guide column (43) away from the latch (41), and the stopper (44) being located on the outer surface of the housing (1).

4. The buckle structure of a portable thermal printer according to claim 1, characterized in that: The middle parts of the rear ends of the two buckles (5) are each provided with a plug hole (6) for use with the latch pin (41).

5. The buckle structure of a portable thermal printer according to claim 3, characterized in that: The latch pin (41) penetrates through the rear slot wall of the slot (7) and is sleeved in the insertion hole (6) to fix the buckle (5) in the slot (7).

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