Easy-to-install label printer

Abstract

The present invention provides a label printer that is easy to install, including a lower shell assembly, a thermal printing assembly, and an elastic member. The lower shell assembly includes a lower shell body located on the outside and a lower bracket arranged on the inner side of the lower shell body; the thermal printing assembly is arranged on the lower bracket and is rotatably connected to the lower bracket, and includes a head piece bracket rotatably connected to the lower bracket and a thermal head piece arranged on the head piece bracket; the elastic member is arranged on the lower bracket and provides elastic force for the thermal printing assembly; two first rotating shafts are arranged on the head piece bracket, and there is a gap between the two first rotating shafts. The part of the first rotating shaft located on the outside of the head piece bracket is the first rotating part, and the part located on the inner side of the head piece bracket is the second rotating part, and the two first rotating parts are rotatably connected to the head piece bracket. The overall structure of the printer of the present invention is simple, and convenient installation can be achieved, which improves assembly efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of printer accessories, in particular to a label printer which is easy to install. Background Art

[0002] At present, thermal printers are widely used in POS machines, vending machines or cash registers. Thermal printers usually include upper shell (or lower shell assembly), paper bin slot, paper bin cover (upper shell assembly) and thermal print head. The paper bin slot has a cavity for holding thermal paper roll. The paper bin cover is rotatably connected to the upper shell. The thermal paper roll in the paper bin slot can be replaced by opening the paper bin cover. The print head is installed in the upper shell for printing on thermal paper.

[0003] One of the key factors in the printing process of the printer is the close fit between the thermal head and the rubber roller. In order to achieve a close fit, a spring is mostly used to provide elastic force so that the thermal head can fit tightly to the rubber roller. When the spring is used for installation, a head base plate needs to be added, and the spring is set between the head base plate and the head bracket (for installing the thermal head). This structure is more complicated and costly, and may also have other problems such as inconvenient installation.

[0004] In view of this, the inventor specially designed a label printer that is easy to install, and this case was thus created. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a label printer that is easy to install, by directly setting a first rotating shaft on the head piece bracket to achieve a rotating effect, and using an elastic member to provide elastic force, the overall structure is simple, and the disadvantages of the current head piece bottom plate joint head piece bracket structure are overcome.

[0006] The label printer that is easy to install provided by the present invention comprises: A lower shell assembly, the lower shell assembly comprising a lower shell body located on the outside and a lower bracket arranged on the inside of the lower shell body; A thermal printing assembly, the thermal printing assembly is arranged on the lower bracket and is rotatably connected to the lower bracket, and comprises a head chip bracket rotatably connected to the lower bracket and a thermal head chip arranged on the head chip bracket; An elastic member, the elastic member is arranged on the lower bracket and provides elastic force for the thermal printing assembly; Two first rotating shafts are arranged on the head piece bracket, and there is a gap between the two first rotating shafts. The part of the first rotating shaft located on the outside of the head piece bracket is the first rotating part, and the part located on the inside of the head piece bracket is the second rotating part. The two first rotating parts are rotatably connected with the head piece bracket, and the elastic member is arranged on the two second rotating parts.

[0007] The label printer which is easy to install in the present invention achieves a rotation effect by directly setting a first rotating shaft on the head piece bracket, and uses an elastic member to provide elastic force. The overall structure is simple. During installation, the elastic member is first set on the second rotating part of the two first rotating shafts, and then the head piece bracket with the elastic member is installed on the lower bracket, which can realize convenient installation and improve assembly efficiency.

[0008] In some embodiments of the present invention, the elastic member includes two elastic parts respectively mounted on the two second rotating parts, an abutting part located between the two elastic parts and used to connect the two elastic parts, and two elastic arms respectively arranged on the outsides of the two elastic parts, the abutting part abuts against the head piece bracket, and the two elastic arms abut against the lower bracket.

[0009] In some embodiments of the present invention, the abutting portion is U-shaped, which not only plays a connecting role but also generates elasticity for the head piece bracket.

[0010] In some embodiments of the present invention, the elastic arm comprises a connecting portion connected to the elastic portion and extending outward, and a supporting portion connected to the connecting portion.

[0011] In some embodiments of the present invention, a rotation position for installing two first rotating parts is provided on the lower bracket, and the first rotating part can rotate in the rotation position; the lower bracket is also provided with a first avoidance position for avoiding the installation of the first rotating part.

[0012] In some embodiments of the present invention, a first locking step for the elastic arm to abut is provided on the lower bracket, and a locking groove for the elastic arm to embed is provided on the first locking step.

[0013] In some embodiments of the present invention, first limiting steps are further provided on both sides of the head piece bracket away from one end of the first rotating shaft.

[0014] In some embodiments of the present invention, the label printer also includes an upper shell assembly, which is rotatably connected to the lower shell assembly, and includes an upper shell body arranged on the outside and an upper bracket arranged inside the upper shell body, and a paper feeding channel is formed between the upper bracket and the lower bracket.

[0015] In some embodiments of the present invention, the label printer further includes a paper identification component, wherein the paper identification component includes: A circuit board, the circuit board is arranged on the lower bracket and located at one side of the paper feeding passage, and a transmitter and a receiver are arranged on the circuit board; A light guide seat, which is arranged on the upper bracket and located at the other side of the paper feeding passage, and the light beam emitted by the transmitter passes through the light guide seat and then enters the receiver; A first mounting step and a second mounting step are respectively arranged on both sides of the circuit board, and a first mounting position and a second mounting position for embedding the first mounting step and the second mounting step are arranged on the lower bracket.

[0016] In some embodiments of the present invention, the light guide base includes two symmetrically arranged reflective surfaces, and the light beam emitted by the transmitter passes through the two reflective surfaces and then enters the receiver.

[0017] In some embodiments of the present invention, the light guide seat includes a reflecting portion for reflecting the light beam and a mounting portion for mounting, and the mounting portion embeds the light guide seat on the upper bracket.

[0018] In some embodiments of the present invention, the label printer also includes a cover opening assembly arranged on the upper shell assembly, the cover opening assembly includes a cover opening buckle and a spring, the cover opening buckle is arranged on the upper bracket and is rotatably connected to the upper bracket, the spring is arranged between the cover opening buckle and the upper bracket and prevents the cover opening buckle from being unhooked; the cover opening buckle includes a rotating support arm located on both sides of the upper bracket, two rotating steps arranged on the inner side of the rotating part, a rotating hole for cooperating with the rotating step is arranged on the upper bracket, and a first buckle part is arranged under the rotating support arm for hooking the lower bracket.

[0019] In some embodiments of the present invention, two first side plates for mounting the rotating steps are further provided on the upper bracket, the two first side plates are located on the inner sides of the two rotating arms, and the rotating holes are located on the first side plates.

[0020] In some embodiments of the present invention, a first inclined surface is provided on the rotating step to facilitate installation.

[0021] In some embodiments of the present invention, the cover opening buckle also includes a connecting plate for connecting the two rotating arms, and a driving part arranged on the connecting plate, which pushes the driving part to make the rotating arms rotate relative to the upper bracket.

[0022] In some embodiments of the present invention, the spring has a first hook and a second hook at both ends, an elastic part generating elastic force is provided between the first hook and the second hook, a third through hole for the first hook to hook is provided on the upper bracket, and a fourth through hole for the second hook to hook is provided on the cover opening buckle.

[0023] In some embodiments of the present invention, the cover opening assembly also includes a pushing seat for pushing the cover opening buckle to rotate and unlock, the pushing seat is arranged on the upper shell and is slidably connected to the upper shell; a pushing part is arranged under the pushing seat for pushing the cover opening buckle to rotate and thereby realize cover opening and unlocking.

[0024] In some embodiments of the present invention, the push seat is installed on the first through hole, and the upper shell is also provided with a first sliding groove for the push seat to slide. A plurality of second buckle parts are also provided below the push seat for installing it on the upper shell.

[0025] In some embodiments of the present invention, the label printer also includes a rubber roller assembly arranged on the upper bracket and opposite to the thermal printing assembly, and a driving assembly arranged on the lower bracket and used to drive the rubber roller assembly, wherein the driving assembly drives the rubber roller assembly to rotate.

[0026] In some embodiments of the present invention, the rubber roller assembly includes a rubber roller wheel rotatably connected to the upper bracket and rubber roller teeth arranged on one side of the rubber roller wheel; the driving assembly includes a driving motor arranged on the lower bracket and a gear group arranged on the lower bracket, and the driving motor drives the rubber roller gear through the driving gear group to rotate the rubber roller wheel to realize printing and paper feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0028] in: Figure 1 It is a schematic diagram of the structure of a label printer that is easy to install according to the present invention; Figure 2 is an exploded view of a label printer that is easy to install according to the present invention; Figure 3 It is a partial schematic diagram of the label printer which is easy to install in the present invention. Figure 1 ; Figure 4 It is a partial schematic diagram of the label printer which is easy to install in the present invention. Figure 2 ; Figure 5 The present invention Figure 4 A partial enlarged view of Figure 6 It is a partial exploded view of the label printer of the present invention which is easy to install; Figure 7 It is a schematic diagram of the structure of the thermal printing assembly of the present invention; Figure 8 It is a structural schematic diagram of the elastic member of the present invention; Fig. 9This is a schematic diagram of the structure of the identification component of the present invention. Figure 1 ; Fig.10 It is a schematic diagram of the installation of the light guide seat of the present invention; Fig.11 It is a structural schematic diagram of the light guide seat of the present invention; Fig.12 It is a schematic structural diagram of the upper shell assembly of the present invention; Fig.13 This is a schematic diagram of the present invention when the cover is closed; Fig.14 It is an exploded view of the upper shell component and the cover opening component of the present invention; Fig.15 It is a structural schematic diagram of the cover opening buckle of the present invention; Fig.16 It is a schematic structural diagram of the upper bracket of the present invention; Fig.17 It is a schematic diagram of the installation of the push seat of the present invention; Fig.18 It is a structural schematic diagram of the push seat of the present invention.

[0029] Description of labels: 10. Lower shell assembly; 11. Lower shell; 12. Lower bracket; 121. Rotation position; 122. First avoidance position; 123. First clamping step; 1231. Clamping groove; 124. First installation position; 125. Second installation position; 126. Second avoidance position; 127. Clamping slot; 128. Second through hole; 20. Thermal printing assembly; 21. Head chip bracket; 211. First rotation axis; 2111. First rotating part; 2112. Second rotating part; 212 , first limiting step; 213, extension arm; 22, thermal head piece; 30, elastic member; 31, elastic part; 32, abutment part; 33, elastic arm; 331, connection part; 332, support part; 40, upper shell assembly; 41, upper shell; 411, first through hole; 412, first sliding groove; 42, upper bracket; 421, third mounting position; 422, second positioning step; 423, second limiting step; 424, first side plate; 4241, rotation hole; 4242, first groove; 425, second side plate; 4251, third through hole; 4252, rib; 50, paper identification component; 51, circuit board; 511, first mounting step; 512, second mounting step; 52, transmitter; 53, receiver; 54, sensing device; 55, light guide seat; 551, reflecting part; 552, mounting part; 5521, extension support; 5522, third buckle part; 60, cover opening component; 61, cover opening buckle; 611 , rotating arm; 6111, first snap-fitting part; 612, rotating step; 6121, first inclined surface; 613, connecting plate; 6131, fourth through hole; 614, driving part; 6141, arc surface; 62, spring; 63, pushing seat; 631, pushing part; 6311, second inclined surface; 632, second snap-fitting part; 70, rubber roller assembly; 71, rubber roller wheel; 72, rubber roller gear; 80, driving assembly; 81, driving motor; 82, gear set. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] See also Figures 1 to 18, is a label printer that is easy to install as an embodiment of the present invention, including a lower shell assembly 10, a thermal printing assembly 20, and an elastic member 30. The lower shell assembly 10 includes a lower shell 11 located on the outside and a lower bracket 12 arranged on the inner side of the lower shell 11; the thermal printing assembly 20 is arranged on the lower bracket 12 and is rotatably connected to the lower bracket 12, and includes a head chip bracket 21 rotatably connected to the lower bracket 12 and a thermal head chip 22 arranged on the head chip bracket 21; the elastic member 30 is arranged on the lower bracket 12 and provides elastic force for the thermal printing assembly 20; two first rotating shafts 211 are arranged on the head chip bracket 21, and there is a gap between the two first rotating shafts 211. The part of the first rotating shaft 211 located on the outside of the head chip bracket 21 is the first rotating part 2111, and the part located on the inside of the head chip bracket 21 is the second rotating part 2112. The two first rotating parts 2111 are rotatably connected to the head chip bracket 21, and the elastic member 30 is arranged on the two second rotating parts 2112. The label printer which is easy to install in the present invention directly sets the first rotating shaft 211 on the head piece bracket 21 to achieve the rotation effect, and uses the elastic member 30 to provide elastic force. The overall structure is simple. During installation, the elastic member 30 is first set on the second rotating part 2112 of the two first rotating shafts 211, and then the head piece bracket 21 with the elastic member 30 is installed on the lower bracket 12, which can realize convenient installation and improve assembly efficiency.

[0032] Please refer to Figure 8 The elastic member 30 includes two elastic parts 31 respectively sleeved on the two second rotating parts 2112, a contact part 32 located between the two elastic parts 31 and used to connect the two elastic parts 31, and two elastic arms 33 respectively arranged on the outside of the two elastic parts 31. The contact part 32 abuts against the head piece bracket 21, and the two elastic arms 33 abut against the lower bracket 12; wherein, the abutment part 32 is U-shaped, which can not only play a connecting role, but also generate elasticity to the head piece bracket 21. Specifically, the two elastic arms 33 abut against the lower bracket 12. Under the action of the elastic part 31, the abutment part 32 generates elastic force to the head piece bracket 21 to meet the printing requirements. The elastic member 30 is equivalent to two torsion springs arranged side by side and then connected by a horizontal connecting shaft to form a U-shaped abutment part 32 between the two torsion springs. Of course, the elastic member 30 of the present invention adopts an integral structure, which has provided a relatively balanced elastic force.

[0033] The installation method of the elastic member 30 of the present invention is as follows: the elastic member 30 is first installed on the head piece bracket 21, and the head piece bracket 21 with the elastic member 30 and the thermal head piece 22 is installed on the lower bracket 12. When installing to the head piece bracket 21, an external force is applied to the two elastic parts 31, so that the two elastic parts 31 are close to each other, the abutting part 32 is deformed, and has the elastic force to restore the two elastic parts 31 to their original state, that is, the elastic potential energy is stored; the external force is continuously applied so that the outer width of the two elastic parts 31 is smaller than the spacing between the two first rotating shafts 211, and the two elastic parts 31 can be moved between the two first rotating shafts 211, and the external force is released. At the same time as the abutting part 32 releases the elastic force, the two elastic parts 31 are respectively inserted into the two second rotating parts 2112, and the installed elastic member 30 can be well restricted. In the absence of external force, it cannot automatically detach from the head piece bracket 21. The whole process is not only convenient to install, but also the elastic member 30 is well restricted after installation.

[0034] Please refer to Figure 8 In order to make the elastic member 30 easier or more convenient to install, the elastic arm 33 has a connecting portion 331 connected to the elastic portion 31 and extending outward, and a supporting portion 332 connected to the connecting portion 331. The connecting portion 331 is provided to increase the distance between the two supporting portions 332 to meet the actual assembly requirements, and the elastic force generated when the two supporting portions 332 are close to each other can also be appropriately reduced, so that the elastic member 30 is easily installed on the head piece bracket 21 or the lower bracket 12.

[0035] Please refer to Figure 5 , 6 A rotation position 121 for installing the two first rotating parts 2111 is provided on the lower bracket 12. The first rotating part 2111 can be located in the rotation position 121 and rotate. The rotation position 121 can be a semi-cylindrical groove, which can meet the rotation requirements of the first rotating part 2111 when it is located in the rotation position 121 (it can meet the rotation requirements when printing and opening the cover); a first avoidance position 122 for avoiding the installation of the first rotating part 2111 is also provided on the lower bracket 12.

[0036] The first avoidance position 122 can be connected to the edge of the rotation position 121 and the lower bracket 12, or the first avoidance position 122 connected to the rotation position 121 can be directly set on the lower bracket 12, mainly to meet the requirements of installing the head piece bracket 21 on the lower bracket 12. Specifically, the first avoidance position 122 can be connected to the edge of the rotation position 121 and the lower bracket 12, or a avoidance hole connected to the rotation position 121 can be set on the lower bracket 12, mainly to meet the requirements of installing the head piece bracket 21 on the lower bracket 12. When the head piece bracket 21 with the elastic member 30 is installed, one of the first rotating parts 2111 first approaches one rotation position 121, and the other first rotating part 2111 approaches the other rotation position 121, so as to realize the connection between the head piece bracket 21 and the lower bracket 12.

[0037] Please refer to Figure 5 , 6 The lower bracket 12 is provided with a first positioning step 123 for the elastic arm 33 to abut against. Specifically, after the head piece bracket 21 with the elastic member 30 is installed on the lower bracket 12, the support portion 332 can be moved toward the abutting portion 32 under the action of external force. After crossing the first positioning step 123, the external force is released, and the support portion 332 can abut against the first positioning step 123, and the outer side of the support portion 332 abuts against the inner side of the lower bracket 12. In order to improve the stability after installation, the first positioning step 123 is provided with a positioning groove 1231 for the elastic arm 33 to be embedded, so that the two support portions 332 can be better restricted after installation.

[0038] Please refer to Figure 7 The first limiting steps 212 are also provided on both sides of the end of the head chip bracket 21 away from the first rotating shaft 211; the first limiting steps 212 prevent the head chip bracket 21 from excessively rotating under the action of the elastic member 30. The head chip bracket 21 also has two extending arms 213, and the two first rotating shafts 211 are respectively provided on the two extending arms 213; the elastic member 30 is better installed on the head chip bracket 21 through the provided extending arms 213 and the two first rotating shafts 211 with a spacing.

[0039] The installation method of the thermal printing assembly 20 of the present invention is as follows: First, fix the thermal head piece 22 on the head piece bracket 21, and then manually put the two elastic parts 31 of the elastic member 30 on the two second rotating parts 2112 respectively, and install the head piece bracket 21 with the thermal head piece 22 and the elastic member 30 on the rotating position 121. The elastic arm 33 can be manually swung to install it in the locking groove 1231 of the locking step, and provide elastic force to the head piece bracket 21. The head piece bracket 21 can be located in the rotating position 121 and rotated.

[0040] The label printer also includes an upper shell assembly 40, which is rotatably connected to the lower shell assembly 10, and includes an upper shell 41 arranged on the outside and an upper bracket 42 arranged in the upper shell 41, and a paper feeding channel is formed between the upper bracket 42 and the lower bracket 12.

[0041] Please refer to Figure 6 , 9-11, the label printer also includes a paper identification component 50, which includes a circuit board 51 and a light guide seat 55. The circuit board 51 is arranged on the lower bracket 12 and located on one side of the paper feeding channel. A transmitter 52 and a receiver 53 are arranged on the circuit board 51; the light guide seat 55 is arranged on the upper bracket 42 and located on the other side of the paper feeding channel. The light beam emitted by the transmitter 52 enters the receiver 53 after passing through the light guide seat 55; a first installation step 511 and a second installation step 512 are respectively arranged on both sides of the circuit board 51, and a first installation position 124 and a second installation position 125 for embedding the first installation step 511 and the second installation step 512 are arranged on the lower bracket 12. The identification component of the present invention is used to install the circuit board 51 by setting the first installation position 124 and the second installation position 125 on the lower bracket 12, and a similar snap-fitting method is used to realize the rapid installation of the circuit board 51. After being installed in place, the circuit board 51 can be better defined to avoid the detection effect being affected by the inadequate installation. At the same time, the assembly is simple and convenient, and cumbersome assembly is avoided, so as to realize rapid assembly.

[0042] Among them, the transmitter 52 and the receiver 53 are arranged side by side on the circuit board 51 and are electrically connected to the circuit board 51, and can be fixed and electrically connected using existing technology; the first mounting position 124 and the second mounting position 125 are mounting grooves or mounting holes; a second avoidance position 126 for avoiding the transmitter 52 and the receiver 53 is provided on the lower bracket 12, wherein the first mounting position 124 and the second mounting position 125 preferably use mounting holes, which can not only facilitate the rapid installation of the circuit board 51, but also allow intuitive observation of whether the circuit board 51 is installed in place. Since the lower bracket 12 is made of plastic parts and a partially unextended step portion of the first mounting position 124 is provided, it has a certain elasticity, which is convenient for the rapid installation of the circuit board 51. During installation, the second mounting step 512 is first embedded in the second mounting position 125, and the first mounting step 511 is embedded in the first mounting position 124 under the action of external force.

[0043] The light guide seat 55 includes two symmetrically arranged reflective surfaces. The light beam emitted by the transmitter 52 passes through the two reflective surfaces and then enters the receiver 53. Preferably, the two reflective surfaces are arranged at an angle to achieve the best reflection effect. A printing paper identification sensing device 54 is also provided on the circuit board 51 to sense the type of printing paper, which can further improve the applicability of the printer; the sensing device 54 is electrically connected to the circuit board 51.

[0044] Please refer to Fig.11The light guide seat 55 includes a reflecting portion 551 for reflecting the light beam and a mounting portion 552 for mounting. The mounting portion 552 embeds the light guide seat 55 on the upper bracket 42, and two reflecting surfaces are arranged on the reflecting portion 551. The upper bracket 42 is provided with a third mounting position 421 for embedding the light guide seat 55. The mounting portion 552 includes an extended support 5521 arranged on the reflecting portion 551, and two third buckling portions 5522 arranged on the extended support 5521. The upper bracket 42 is provided with a second clamping step 422 for buckling the two third buckling portions 5522. The light guide seat 55 is embedded in the third mounting position 421, and the third buckling portion 5522 passes through the third mounting position 421 and hooks the second clamping step 422, so as to facilitate the quick installation of the light guide seat 55.

[0045] An inclined surface is provided outside the two third buckle parts 5522 to facilitate access to the third installation position 421. A second limiting step 423 for limiting the installation of the light guide seat 55 is provided on the upper bracket 42 and located in the third installation position 421. After the light guide seat 55 is installed in place, the extension support 5521 abuts against the second limiting step 423. Since the height of the reflective part 551 is higher than the extension support 5521, the second limiting step 423 can be used to prevent the light guide seat 55 from being assembled incorrectly.

[0046] The installation method of the identification component of the present invention is as follows: First, the circuit board 51 with the transmitter 52 and the receiver 53 is installed on the lower bracket 12. Specifically, the second installation step 512 is embedded in the second installation position 125, and the first installation step 511 is embedded in the first installation position 124. At the same time, the transmitter 52 and the receiver 53 are arranged corresponding to the second avoidance position 126. Second, the extended support 5521 corresponds to the second limiting step 423 , the third buckle portion 5522 is locked to the third installation position 421 and embedded, and then the third buckle portion 5522 locks the second locking step 422 to achieve fast and accurate assembly of the light guide base 55 .

[0047] Please refer to Figure 12-18The label printer further includes a cover opening assembly 60 disposed on the upper shell assembly 40, the cover opening assembly 60 includes a cover opening buckle 61 and a spring 62, the cover opening buckle 61 is disposed on the upper bracket 42 and is rotatably connected to the upper bracket 42, the spring 62 is disposed between the cover opening buckle 61 and the upper bracket 42 and prevents the cover opening buckle 61 from being unhooked; the cover opening buckle 61 includes a rotating arm 611 located on both sides of the upper bracket 42, two rotating steps 612 disposed inside the rotating part, a rotating hole 4241 for cooperating with the rotating step 612 is disposed on the upper bracket 42, and a first buckle portion 6111 is disposed below the rotating arm 611 for hooking the lower bracket 12. A first through hole 411 is disposed above the housing to facilitate pushing the cover opening buckle 61 above, that is, the first through hole 411 is disposed to facilitate pushing the cover opening buckle 61 to rotate along the upper bracket 42, and the rotating arm 611 can rotate simultaneously. The cover opening assembly 60 of the present invention adopts a push-type structure. A rotating step 612 is directly provided on the cover opening buckle 61, and a rotating hole 4241 for installing the rotating step 612 is provided on the upper bracket 42. During assembly, it is only necessary to embed the rotating step 612 into the rotating hole 4241, thereby avoiding cumbersome assembly and achieving quick assembly.

[0048] Please refer to Fig.13 , the first buckle part 6111 provided below the rotating arm 611 is used to hook the lower bracket 12 for buckling, the lower bracket 12 is provided with a buckle slot 127, and the upper end surface is provided with a second through hole 128 that is connected to the buckle slot 127 and is used for the first buckle part 6111 to pass through. Specifically, one side of the upper bracket 42 is rotatably connected to the lower bracket 12, and the other side is buckled through the cover opening buckle 61 and the spring 62 or unlocked through the cover opening buckle 61 and the push seat 63. The connection between the upper bracket 42 and the lower bracket 12 and the setting of the torsion spring are both existing technologies and will not be described in detail.

[0049] The upper bracket 42 is also provided with two first side plates 424 for installing the rotating step 612. The two first side plates 424 are located inside the two rotating arms 611, and the rotating hole 4241 is located on the first side plates 424. The first side plates 424 are also provided with a first groove 4242 on the outside for facilitating the installation of the rotating step 612 into the rotating hole 4241, that is, the first groove 4242 is located on the outer side wall of the first side plate 424. When the cover opening buckle 61 is installed, the rotating step 612 enters the rotating hole 4241 along the first groove 4242, and the first groove 4242 extends from the upper end surface of the first side plate 424 to the rotating hole 4241. The central axes of the two rotating holes 4241 are colinear to form a first axis, and the rotating arm 611 rotates along the first axis. The upper bracket 42 is made of plastic, and the first side plate 424 can be directly formed by integral injection molding. Since the thickness of the first side plate 424 and the rotating arm 611 is not very thick, the first side plate 424 and the rotating arm 611 have a certain elasticity, which facilitates the installation of the rotating step 612 into the rotating hole 4241.

[0050] The first inclined surface 6121 for easy installation is provided on the rotating step 612. The first inclined surface 6121 is provided so that the two rotating steps 612 can be easily installed on both sides of the two first side panels 424. When a certain external force is applied, the first side panels 424 and / or the rotating arm 611 are deformed to a certain extent, so that the rotating step 612 can be easily inserted into the rotating hole 4241. Furthermore, the first groove 4242 can be matched, and the external force applied does not need to be too large, so that fast installation can be achieved, and the inner side of the rotating arm 611 can be ensured to be as close as possible to the outer side walls of the two first side panels 424, so as to ensure the stable rotation of the cover opening buckle 61.

[0051] The cover opening buckle 61 also includes a connecting plate 613 for connecting the two rotating arms 611 and a driving part 614 arranged on the connecting plate 613. The driving part 614 is pushed to make the rotating arm 611 rotate relative to the upper bracket 42. The connecting plate 613, the driving part 614 and the rotating arm 611 can adopt an integrated structure.

[0052] The spring 62 provided in the present invention can prevent the first buckle portion 6111 from detaching from the slot 127. One end of the spring 62 is connected to the upper bracket 42, and the other end is connected to the cover opening buckle 61. The two ends of the spring 62 are respectively provided with a first hook and a second hook, and a second elastic portion 31 for generating elastic force is provided between the first hook and the second hook. The upper bracket 42 is provided with a third through hole 4251 for hooking by the first hook, and the cover opening buckle 61 is provided with a fourth through hole 6131 for hooking by the second hook, so that the upper side of the cover opening buckle 61 swings toward the side of the spring 62, which can ensure that the first buckle portion 6111 hooks the slot 127 and prevents detachment.

[0053] The upper bracket 42 has a second side plate 425, a third through hole 4251 is provided on the second side plate 425, and both ends of the second side plate 425 are respectively connected to the two first side plates 424, so that the mounting structure formed by the two first side plates 424 and the second side plate 425 is more stable and reliable. The fourth through hole 6131 is provided on the connecting plate 613. Since the second side plate 425 needs to be subjected to force, the side wall of the second side plate 425 is further provided with ribs 4252 for improving the strength of the second side plate 425. Preferably, the number of ribs 4252 is set as required, and is arranged close to the third through hole 4251.

[0054] The cover opening assembly 60 also includes a push seat 63 for pushing the cover opening buckle 61 to rotate and unlock. The push seat 63 is arranged on the upper shell 41 and is slidably connected to the upper shell 41. A push portion 631 is arranged below the push seat 63 to push the cover opening buckle 61 to rotate and thereby realize the cover opening and unlocking. When the push portion 631 pushes, it mainly acts on the driving portion 614. The push seat 63 is installed on the first through hole 411, and the upper shell 41 is also provided with a first sliding groove 412 for the push seat 63 to slide. A plurality of second buckle portions 632 are also arranged below the push seat 63 for mounting it on the upper shell 41. Specifically, four second buckle portions 632 are arranged, which pass through the first through hole 411 and hook the inner side wall of the upper shell 41, and can ensure the smooth sliding of the push seat 63 and the upper shell 41. The push seat 63 is made of plastic parts and can be integrally injection molded, and a plurality of second buckle portions 632 and the push portion 631 can be directly molded. After the cover opening assembly 60 of the present invention is installed in place, an arc surface 6141 is set on the side of the driving part 614 close to the pushing part 631, and a second inclined surface 6311 is set on the side of the pushing part 631 close to the driving part 614. Under the action of the spring 62, the arc surface 6141 above the cover opening buckle 61 will resist the second inclined surface 6311, and at the same time, the spring 62 generates a force to prevent the pushing seat 63 from sliding along the upper shell body 41 by itself, and prevent the pushing seat 63 from sliding along the upper object shell body by itself.

[0055] When installing the cover opening assembly 60 of the present invention, first install the rotating arm 611 of the cover opening buckle 61 corresponding to the first side plate 424, and then the rotating step 612 is embedded in the first groove 4242, and then the cover opening buckle 61 continues to be pressed down so that the rotating step 612 is pressed into the rotating hole 4241, which can be accurately and quickly installed. It is not only simple but also improves the installation efficiency. Then, one end of the spring 62 is hooked into the third through hole 4251, and the other end is hooked into the fourth through hole 6131. ​​The push seat 63 is directly pressed into the first through hole 411, and then the upper bracket 42 and the upper shell 41 are locked by a number of bolts.

[0056] The opening and closing method of the cover opening assembly 60 of the present invention is as follows: When the upper shell 41 of the present invention is closed, the rotating arm 611 with the first buckle portion 6111 first passes through the second through hole 128. Specifically, under the action of the side wall of the second through hole 128, the first buckle portion 6111 is pushed open and passes over the second through hole 128 and enters the slot 127. Under the action of the spring 62, the first buckle portion 6111 is reset to hook the slot 127. At this time, the spring 62 continues to generate elastic force to prevent the rotating arm 611 from rotating on its own and preventing it from being unhooked. When it is necessary to open the cover, the push seat 63 is pushed, and the push seat 63 slides relative to the upper shell 41. The pushing portion 631 below pushes the driving portion 614, and the rotating arm 611 rotates along the first axis. The first buckle portion 6111 is disengaged from the slot 127, and the upper shell 41 can be opened.

[0057] Please refer to Figure 2 , 3 The label printer also includes a rubber roller assembly 70 arranged on the upper bracket 42 and opposite to the thermal printing assembly 20, and a driving assembly 80 arranged on the lower bracket 12 and used to drive the rubber roller assembly 70. The driving assembly 80 drives the rubber roller assembly 70 to rotate; the rubber roller assembly 70 includes a rubber roller wheel 71 rotatably connected to the upper bracket 42, and rubber roller teeth arranged on one side of the rubber roller wheel 71; the driving assembly 80 includes a driving motor 81 arranged on the lower bracket 12, and a gear set 82 arranged on the lower bracket 12. The driving motor 81 drives the rubber roller gear 72 through the driving gear set 82, so that the rubber roller wheel 71 rotates to realize printing and paper feeding.

[0058] In summary, the printer that is easy to install of the present invention has the following advantages: First, the thermal printing assembly directly sets a first rotating shaft on the head piece bracket to achieve a rotating effect, and uses an elastic member to provide elastic force. The overall structure is simple. When installing, the elastic member is first set on the second rotating part of the two first rotating shafts, and then the head piece bracket with the elastic member is installed on the lower bracket, which can realize convenient installation and improve assembly efficiency. Second, the identification component is used to install the circuit board by setting the first installation position and the second installation position on the lower bracket, and a similar snap-on method is used to realize the rapid installation of the circuit board. After the circuit board is installed in place, it can be better defined to avoid the detection effect being affected by the inadequate installation. At the same time, the assembly is simple and convenient, and cumbersome assembly is avoided, so that rapid assembly is realized; Thirdly, the cover opening assembly is provided with a rotating step directly on the cover opening buckle, and a rotating hole for installing the rotating step is provided on the upper bracket. During assembly, it is only necessary to embed the rotating step into the rotating hole, thereby avoiding cumbersome assembly and achieving quick assembly.

[0059] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. Easy-to-install label printer, characterized by: include: A lower shell assembly, the lower shell assembly comprising a lower shell body located on the outside and a lower bracket arranged on the inside of the lower shell body; A thermal printing assembly, the thermal printing assembly is arranged on the lower bracket and is rotatably connected to the lower bracket, and comprises a head chip bracket rotatably connected to the lower bracket and a thermal head chip arranged on the head chip bracket; An elastic member, the elastic member is arranged on the lower bracket and provides elastic force for the thermal printing assembly; Two first rotating shafts are arranged on the head piece bracket, and there is a gap between the two first rotating shafts. The part of the first rotating shaft located on the outside of the head piece bracket is the first rotating part, and the part located on the inside of the head piece bracket is the second rotating part. The two first rotating parts are rotatably connected with the head piece bracket, and the elastic member is arranged on the two second rotating parts.

2. The easy-to-install label printer according to claim 1, characterized in that: The elastic member includes two elastic parts respectively sleeved on the two second rotating parts, an abutment part located between the two elastic parts and used to connect the two elastic parts, and two elastic arms respectively arranged on the outsides of the two elastic parts, the abutment part abuts against the head piece bracket, and the two elastic arms abut against the lower bracket.

3. The easy-to-install label printer according to claim 1, characterized in that: The lower bracket is provided with a rotation position for installing two first rotating parts, and the first rotating parts can be rotated in the rotation position; the lower bracket is also provided with a first avoidance position for avoiding the installation of the first rotating parts.

4. The easy-to-install label printer according to claim 1, characterized in that: The label printer also includes an upper shell component, which is rotatably connected to the lower shell component and includes an upper shell arranged on the outside and an upper bracket arranged in the upper shell, and a paper feeding channel is formed between the upper bracket and the lower bracket.

5. The easy-to-install label printer according to claim 1, characterized in that: The label printer also includes a paper identification component, which includes: A circuit board, the circuit board is arranged on the lower bracket and located at one side of the paper feeding passage, and a transmitter and a receiver are arranged on the circuit board; A light guide seat, which is arranged on the upper bracket and located at the other side of the paper feeding passage, and the light beam emitted by the transmitter passes through the light guide seat and then enters the receiver; A first mounting step and a second mounting step are respectively arranged on both sides of the circuit board, and a first mounting position and a second mounting position for embedding the first mounting step and the second mounting step are arranged on the lower bracket.

6. The easy-to-install label printer according to claim 5, characterized in that: The light guide seat comprises two symmetrically arranged reflective surfaces, and the light beam emitted by the transmitter passes through the two reflective surfaces and then enters the receiver.

7. The easy-to-install label printer according to claim 5, characterized in that: The light guide seat comprises a reflecting part for reflecting the light beam and a mounting part for mounting, and the mounting part embeds the light guide seat on the upper bracket.

8. The easy-to-install label printer according to claim 4, characterized in that: The label printer also includes a cover opening component arranged on the upper shell component, the cover opening component includes a cover opening buckle and a spring, the cover opening buckle is arranged on the upper bracket and is rotatably connected to the upper bracket, the spring is arranged between the cover opening buckle and the upper bracket and prevents the cover opening buckle from being unhooked; the cover opening buckle includes a rotating support arm located on both sides of the upper bracket, two rotating steps arranged on the inner side of the rotating part, a rotating hole for cooperating with the rotating step is arranged on the upper bracket, and a first buckle part is arranged below the rotating support arm for hooking the lower bracket.

9. The easy-to-install label printer according to claim 8, characterized in that: The cover opening assembly also includes a push seat for pushing the cover opening buckle to rotate and unlock, the push seat is arranged on the upper shell and is slidably connected to the upper shell; a push part is arranged under the push seat for pushing the cover opening buckle to rotate and thus realize cover opening and unlocking.

10. The easy-to-install label printer according to claim 4, characterized in that: The label printer also includes a rubber roller assembly arranged on the upper bracket and opposite to the thermal printing assembly, and a driving assembly arranged on the lower bracket and used for driving the rubber roller assembly, wherein the driving assembly drives the rubber roller assembly to rotate.

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