Cover opening bouncing fixing structure

Abstract

The utility model belongs to the technical field of thermal printers, and particularly discloses a cover-opening bouncing fixing structure, which comprises a base and a protective cover, the protective cover is fixed on the left side of the base, a flip cover is transversely arranged above the base, an assembly plate is clamped and fixed between two sides in the flip cover, and the assembly plate is fixed on the base. The two sides of the front end in the assembling plate are movably connected with pull rods correspondingly, and clamping blocks are fixed to the outer sides of the pull rods. According to the uncovering bouncing fixing structure, the pull rods are movably connected to the two sides of the front end of the interior of the assembly plate respectively, the pull rods connected with the toothed bar through the first spring are limited by the gear in the center, and after the clamping blocks on the two sides are separated from the corresponding insertion holes, the thermosensitive piece which is not extruded by the rubber roller rapidly bounces the assembly plate and the flip cover under the support of the second spring; and the clamping block with the inclined surface can be ejected out along the through groove for fixation under the extrusion of the pull rod, so that the problem that the bouncing height of the cover body is not enough is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal printers, in particular to a cover-opening pop-up fixing structure. Background Art

[0002] A thermal printer is a device that prints patterns and text on thermal paper through a semiconductor heating element installed in the print head. The printed patterns and text will not fade or change color for many years through high-temperature catalytic chemical reactions. In order to facilitate opening the thermal printer shell, it is usually equipped with a flip cover on the top.

[0003] A thermal sheet or rubber roller is provided on the flip cover, which is in a state of mutual pressing with the rubber roller or thermal sheet provided on the base. There is a spring on the bottom of the thermal sheet. When the flip cover is free from the restriction of the cover mechanism, the thermal sheet and rubber roller pressed against each other will make the flip cover bounce up to a certain height under the mutual reaction force. When the rubber roller is thin, the height of the flip cover is not enough, which may be mistakenly understood as the cover is opened but not fully opened.

[0004] Now, a new type of cover opening and pop-up fixing structure is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a cover pop-up fixing structure to solve the problem of insufficient pop-up height of the cover body in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cover-opening pop-up fixing structure, comprising a base and a protective cover, a protective cover fixed on the left side of the base, a flip cover arranged horizontally above the base, and an assembly plate fixed between the two sides of the inside of the flip cover, both sides of the front end of the assembly plate are movably connected with pull rods, and a clamping block is fixed on the outside of the pull rod, through grooves are respectively provided inside the front ends of both sides of the assembly plate, a gear is movably connected at the center of the front end of the assembly plate, a gear rod is provided on the side of the front end of the pull rod, and a spring is fixed between the gear rod and the pull rod, a socket is respectively provided at the front end above both sides of the base, and a notch is horizontally provided at the top of the front end of the base.

[0007] As a further technical solution of the present invention, the center of the gear rod is symmetrically located at the right rear and left front of the gear, and the clamping block can enter and exit the through slot and be embedded in the socket.

[0008] As a further technical solution of the present invention, a cylindrical chamber is provided between the two sides of the front end of the bottom of the assembly plate, and a rubber roller is fixed between the two sides of the inside of the cylindrical chamber, a groove is laterally provided at the front end of the top of the base, and a thermal sheet is laterally inserted into the inside of the groove, and a spring 2 is fixed between the bottom of the thermal sheet and the groove.

[0009] As a further technical solution of the present invention, the rubber roller and the cylindrical chamber are arranged in concentric circles, and the rubber roller is attached to the top of the thermal sheet.

[0010] As a further technical solution of the present invention, rotating shafts are fixed at the rear of the left and right sides of the assembly plate, limiting rods are fixed on both sides of the front end of the assembly plate, slots are respectively provided at the center above both sides of the base, and connecting grooves are respectively provided at the rear ends above both sides of the base.

[0011] As a further technical solution of the present invention, the limiting rod can be overlapped in the slot, and the rotating shafts can be movably inserted in the connecting slots.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the cover pop-up fixing structure not only ensures the normal opening of the cover body and the rapid propping up of the flip cover, but also avoids the misalignment of the flip cover and the base;

[0013] (1) By movably connecting the pull rods on both sides of the front end of the assembly plate, the pull rod connected to the gear rod through spring 1 is restricted by the gear at the center. After the blocks on both sides are separated from the corresponding sockets, the heat-sensitive sheet that loses the pressure of the rubber roller quickly pops up the assembly plate and the flip cover under the support of spring 2, avoiding the cover from being stuck and causing the flip cover to remain connected to the top of the base. On the contrary, when the flip cover is closed, the block is squeezed by the pull rod with spring 2 and pushes out the block with an inclined surface along the through groove until it is locked in the socket and fixed, preventing the flip cover from popping out when it does not need to be opened;

[0014] (2) A rubber roller is fixed between the two sides of the cylindrical chamber, and a spring 2 is connected to a thermal sheet in a groove. The thermal sheet will slide up and down along the groove when squeezed by the rubber roller. The rubber roller is also stuck in the corresponding cylindrical chamber and will not be easily removed. The rubber roller and the thermal sheet are in the same vertical plane. The opening and closing of the flip cover is controlled by the induction of the thermal sheet to ensure that the flip cover pops up at a sufficient height.

[0015] (3) By fixing the limit rods on both sides of the front end of the assembly plate, the rear of the assembly plate is embedded in the corresponding connecting groove of the base with the help of the symmetrical rotating shafts on both sides. When the thermal sheet is raised, it presses against the assembly plate, so that the limit rod is far away from the groove. When the flip cover and the assembly plate are closed, the assembly plate is lowered and embedded in the groove again with the help of the limit rod, so as to avoid the flip cover and the base from being misaligned, and also to prevent the flip cover from getting stuck while moving up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic side view of the three-dimensional cross-sectional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the front three-dimensional structure of the assembly plate of the present invention;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the base of the utility model from a top view;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the front view piece of the base of the present invention;

[0020] Figure 5 For the utility model Figure 4 A schematic diagram of the enlarged structure of the local section at point A in the middle;

[0021] Figure 6 It is a side cross-sectional structural schematic diagram of the utility model.

[0022] In the figure: 1. Base; 2. Notch; 3. Protective cover; 4. Flip cover; 5. Cylindrical chamber; 6. Rubber roller; 7. Assembly plate; 8. Groove; 9. Thermal film; 10. Limit rod; 11. Block; 12. Pull rod; 13. Spring 1; 14. Gear rod; 15. Gear; 16. Rotating shaft; 17. Slot; 18. Jack; 19. Through slot; 20. Spring 2; 21. Connecting slot. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-6 , the utility model provides an embodiment: a cover pop-up fixing structure, including a base 1 and a protective cover 3, the protective cover 3 is fixed on the left side of the base 1, a flip cover 4 is horizontally arranged above the base 1, and an assembly plate 7 is fixed between the two sides of the inside of the flip cover 4, and the two sides of the front end of the assembly plate 7 are movably connected with a pull rod 12, and a clamping block 11 is fixed on the outside of the pull rod 12, and a through groove 19 is respectively provided inside the front end of both sides of the assembly plate 7, a gear 15 is movably connected at the center of the front end of the assembly plate 7, a gear rod 14 is provided on the side of the front end of the pull rod 12, and a spring 13 is fixed between the gear rod 14 and the pull rod 12, a socket 18 is respectively provided at the front end above both sides of the base 1, and a notch 2 is horizontally provided on the top of the front end of the base 1;

[0025] The gear rod 14 is symmetrically located at the right rear and left front of the gear 15. The clamping block 11 can enter and exit the through slot 19 and be inserted into the insertion hole 18.

[0026] Specifically, if Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, the pull rod 12 connected to the gear rod 14 through the spring 13 is restricted by the gear 15 at the center. After the blocks 11 on both sides are disengaged from the corresponding sockets 18, the thermal sheet 9 that loses the squeeze of the rubber roller 6 quickly pops up the assembly plate 7 and the flip cover 4 under the support of the spring 20, avoiding the jamming that causes the flip cover 4 to remain connected to the top of the base 1. On the contrary, when the flip cover 4 is closed, the block 11 is squeezed by the pull rod 12 with the spring 20, and the block 11 with the inclined surface is pushed out along the through groove 19 until it is clamped and fixed in the socket 18.

[0027] A cylindrical chamber 5 is provided between the two sides of the front end of the bottom of the assembly plate 7, and a rubber roller 6 is fixed between the two sides of the cylindrical chamber 5. A groove 8 is provided laterally at the front end of the top of the base 1, and a thermal sheet 9 is inserted laterally into the groove 8. A spring 20 is fixed between the bottom of the thermal sheet 9 and the groove 8. The rubber roller 6 and the cylindrical chamber 5 are arranged concentrically, and the rubber roller 6 is attached to the top of the thermal sheet 9.

[0028] Specifically, if Figure 1 、 Figure 3 and Figure 6 As shown, the second spring 20 is connected to the thermal sheet 9 in the groove 8. The thermal sheet 9 will slide up and down along the groove 8 when squeezed by the rubber roller 6. The rubber roller 6 is also stuck in the corresponding cylindrical chamber 5 and will not be easily removed. The rubber roller 6 and the thermal sheet 9 are in the same vertical plane. The opening and closing of the flip cover 4 are controlled by the induction of the thermal sheet 9.

[0029] A rotating shaft 16 is fixed to the rear of the left and right sides of the assembly plate 7, and a limit rod 10 is fixed to both sides of the front end of the assembly plate 7. A slot 17 is provided at the center of each upper side of the base 1, and a connecting groove 21 is provided at the rear end of each upper side of the base 1. The limit rod 10 can be overlapped in the slot 17, and the rotating shaft 16 is movably inserted in the connecting groove 21.

[0030] Specifically, if Figure 1 、 Figure 2 and Figure 3 As shown, the rear of the assembly plate 7 is embedded in the corresponding connecting groove 21 of the base 1 by means of the symmetrical rotating shafts 16 on both sides. When the thermal sheet 9 is raised, it presses against the assembly plate 7, so that the limit rod 10 moves away from the groove 17. When the flip cover 4 and the assembly plate 7 are closed, the assembly plate 7 is lowered and re-engaged in the groove 17 by means of the limit rod 10, thereby preventing the flip cover 4 and the base 1 from being misaligned.

[0031] Working principle: When the utility model is in use, first, the pull rod 12 connected to the gear rod 14 by the spring 13 is restricted by the gear 15 at the center. After the blocks 11 on both sides are separated from the corresponding sockets 18, the thermal sheet 9 that is no longer squeezed by the rubber roller 6 quickly pops up the assembly plate 7 and the flip cover 4 under the support of the spring 2 20.

[0032] When the flap 4 and the assembly plate 7 are closed, the assembly plate 7 is lowered and re-engaged in the slot 17 by the limit rod 10, so as to prevent the flap 4 from being misaligned with the base 1.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A cover pop-up fixing structure, comprising a base (1) and a protective cover (3), characterized in that: A protective cover (3) is fixed on the left side of the base (1), a flip cover (4) is horizontally arranged above the base (1), and an assembly plate (7) is fixed between the two sides of the inside of the flip cover (4), and the two sides of the front end of the assembly plate (7) are movably connected with pull rods (12), and a clamping block (11) is fixed on the outside of the pull rod (12), and a through groove (19) is respectively provided inside the front end of both sides of the assembly plate (7), and a gear (15) is movably connected at the center of the front end of the assembly plate (7), a gear rod (14) is provided on the side of the front end of the pull rod (12), and a spring (13) is fixed between the gear rod (14) and the pull rod (12), and a socket (18) is respectively provided at the front end above both sides of the base (1), and a notch (2) is horizontally provided at the top of the front end of the base (1).

2. The cover pop-up fixing structure according to claim 1, characterized in that: The center of the gear rod (14) is symmetrically located at the right rear and left front of the gear (15), and the clamping block (11) can enter and exit the through slot (19) and be embedded in the insertion hole (18).

3. The cover pop-up fixing structure according to claim 1, characterized in that: A cylindrical chamber (5) is provided between the two sides of the front end of the bottom of the assembly plate (7), and a rubber roller (6) is fixed between the two sides inside the cylindrical chamber (5). A groove (8) is laterally provided at the front end of the top of the base (1), and a thermal sheet (9) is laterally inserted into the groove (8). A spring 2 (20) is fixed between the bottom of the thermal sheet (9) and the groove (8).

4. The cover pop-up fixing structure according to claim 3, characterized in that: The rubber roller (6) and the cylindrical chamber (5) are arranged in a concentric circle, and the rubber roller (6) is attached to the top of the thermal sheet (9).

5. The cover pop-up fixing structure according to claim 1, characterized in that: Rotating shafts (16) are fixed to the rear of the left and right sides of the assembly plate (7), and limiting rods (10) are fixed to the two sides of the front end of the assembly plate (7). A slot (17) is provided at the center of the upper sides of the base (1), and a connecting slot (21) is provided at the rear end of the upper sides of the base (1).

6. The cover pop-up fixing structure according to claim 5, characterized in that: The limiting rod (10) can be overlapped in the slot (17), and the rotating shaft (16) is movably inserted in the connecting slot (21).

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