Flip-open type cover opening structure of small labeling machine

Abstract

The utility model discloses a bouncing type cover opening structure of a small-sized labeling machine, which comprises a shell, a paper bin arranged in the shell, a bin cover hinged at the opening end of the paper bin and a torsion spring mechanism, and the two ends of the torsion spring mechanism are respectively and fixedly connected with the paper bin and the bin cover. The paper bin has the advantages that the torsion spring mechanism is arranged at the hinged position of the paper bin and the bin cover, the bin cover is pushed up through elastic force provided by the torsion spring mechanism till the bin cover reaches the maximum cover opening angle, the angle is kept, the bouncing effect and the final opening effect of the bin cover are improved, and the problem that operation is inconvenient when a labeling machine loads paper is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of label printers, in particular to a pop-up open cover structure for a small label printer. Background Art

[0002] A small label printer is a rechargeable printer that is small enough to be held in the hand. When in use, the user needs to input text or pattern information on an APP and then transmit the information to the controller of the small label printer. By controlling the matrix thermal printing head in the small label printer to contact a piece of thermal paper, the information is transferred to the thermal paper.

[0003] A small label printer usually needs to be provided with a paper bin for accommodating a roll of thermal paper, and a bin cover is designed to hide the paper bin to prevent the thermal paper from falling off during the printing process. However, the current open cover structure of the small label printer is just an ordinary hinge. After the paper bin cover lock is opened, the user still needs to manually turn it to the maximum open cover angle, and there is no way to fix it at the maximum open cover angle. After the hand leaves, the paper bin cover is prone to fall and close under the influence of gravity. Therefore, the user needs to support it with the hand all the time during the paper loading process, and the operation is very inconvenient. Summary of the Utility Model

[0004] In view of the above problems, the utility model provides a pop-up open cover structure for a small label printer, which mainly solves the problem that the existing small label printer cannot be fixed at the maximum open cover angle in the open state.

[0005] To solve the above technical problems, the technical solution of the utility model is as follows:

[0006] A pop-up open cover structure for a small label printer includes a housing, a paper bin arranged in the housing, and a bin cover hinged to the open end of the paper bin. The pop-up open cover structure further includes a torsion spring mechanism, and two ends of the torsion spring mechanism are respectively fixedly connected to the paper bin and the bin cover.

[0007] In some embodiments, a limiting step is arranged on the inner side of the bin cover, an avoidance cavity for accommodating the limiting step is arranged on the edge of the paper bin, an avoidance hole is arranged on the side of the avoidance cavity, a first arc-shaped rib position is arranged on the edge of the avoidance hole, the body of the torsion spring mechanism is installed outside the first arc-shaped rib position, the head end of the torsion spring mechanism enters the avoidance cavity from the avoidance hole until it is fixed on the limiting step, and the tail end of the torsion spring mechanism abuts against the inner wall of the housing.

[0008] In some embodiments, the housing includes a middle frame surrounding the periphery of the paper bin and a bottom cover installed at the bottom of the middle frame. Among them, a second arc-shaped rib position is arranged on the inner wall of the middle frame, and the first arc-shaped rib position and the second arc-shaped rib position clamp the body of the torsion spring mechanism.

[0009] In some embodiments, a groove is provided at the center of the second arc-shaped rib position, and the tail end of the torsion spring mechanism abuts against the groove.

[0010] In some embodiments, the torsion spring mechanism includes two spring coils, a spring head connecting the two spring coils, and spring tails extending from each spring coil. Among them, the spring head abuts against the limiting step, and the spring tails abut against the groove.

[0011] In some embodiments, a cantilever is installed inside the magazine cover. A rotating shaft is provided at the end of the cantilever. An avoidance groove for avoiding the cantilever is further provided at the edge of the paper magazine. Fixed seats are provided below the avoidance groove. A hinge hole is provided on the side of the fixed seat. The cantilever passes through the avoidance groove and enters the fixed seat until the rotating shaft is inserted into the hinge hole.

[0012] In some embodiments, the fixed seat is made of an elastic material, and both the rotating shaft and the hinge hole are special-shaped parts with non-circular cross-sections.

[0013] In some embodiments, narrow holes intersecting with each other are provided on the side of the hinge hole.

[0014] The beneficial effects of the present utility model are as follows: By providing a torsion spring mechanism at the hinge of the paper magazine and the magazine cover, the elastic force provided by the torsion spring mechanism is used to push up the magazine cover until the magazine cover reaches the maximum opening angle and remains at this angle, improving the popping-up effect and the final opening effect of the magazine cover, and overcoming the problem of inconvenient operation when loading paper into the label machine. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the pop-up opening structure of the small label machine disclosed in the embodiment of the present utility model in the open state;

[0016] Figure 2 is Figure 1 a partial enlarged view within the range along line A;

[0017] Figure 3 is a schematic structural diagram of the paper magazine disclosed in the embodiment of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the pop-up opening structure of the small label machine disclosed in the embodiment of the present utility model in the closed state;

[0019] Figure 5 is a schematic structural diagram of the middle frame disclosed in the embodiment of the present utility model;

[0020] Figure 6 is a schematic structural diagram of the torsion spring mechanism disclosed in the embodiment of the present utility model;

[0021] Figure 7 Schematic diagram of the structure of the bin cover disclosed in the embodiment of the present utility model;

[0022] Figure 8 is Figure 3 Partial enlarged view within the range along line B;

[0023] Wherein: 1 - housing, 2 - paper bin, 3 - bin cover, 4 - torsion spring mechanism, 101 - middle frame, 102 - bottom cover, 103 - second arc rib position, 104 - groove, 201 - avoidance cavity, 202 - avoidance hole, 203 - first arc rib position, 204 - avoidance groove, 205 - fixing seat, 206 - hinge hole, 207 - narrow hole, 301 - limiting step, 302 - cantilever, 303 - rotating shaft, 401 - spring coil, 402 - spring head, 403 - spring tail. Detailed implementation manners

[0024] To make the objectives, technical solutions and advantages of the present utility model clearer and more definite, the content of the present utility model will be further described in detail below with reference to the accompanying drawings and specific implementation manners. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the convenience of description, only parts related to the present utility model are shown in the drawings, rather than all the content.

[0025] This embodiment provides a pop-up opening structure for a small label printer. As Figure 1 shown, it includes a housing 1, a paper bin 2 disposed in the housing 1, and a bin cover 3 hinged to the open end of the paper bin 2. It further includes a torsion spring mechanism 4, and both ends of the torsion spring mechanism 4 are fixedly connected to the paper bin 2 and the bin cover 3 respectively.

[0026] In this embodiment, by providing a torsion spring mechanism 4 at the hinge of the paper bin 2 and the bin cover 3, the elastic force provided by the torsion spring mechanism 4 is used to push up the bin cover 3 until the bin cover 3 reaches the maximum opening angle and remains at this angle, improving the popping effect and the final opening effect of the bin cover 3, and overcoming the problem of inconvenient operation when loading paper into the label printer.

[0027] Optionally, as Figure 2 and 3As shown in the figure, a limiting step 301 is provided on the inner side of the cartridge cover 3, and an avoidance cavity 201 for accommodating the limiting step 301 is provided at the edge of the paper cartridge 2. An avoidance hole 202 is provided on the side of the avoidance cavity 201, and a first arc-shaped rib 203 is provided at the edge of the avoidance hole 202. The body of the torsion spring mechanism 4 is installed outside the first arc-shaped rib 203. The head end of the torsion spring mechanism 4 enters the avoidance cavity 201 through the avoidance hole 202 until it is fixed on the limiting step 301, and the tail end of the torsion spring mechanism 4 abuts against the inner wall of the housing 1. In this solution, after the cartridge cover 3 is normally closed, the limiting step 301 will enter the avoidance cavity 201 to prevent interference between the limiting step 301 and the paper cartridge 2. On this basis, the torsion spring mechanism 4 is further hidden under the edge of the paper cartridge 2, and the body of the torsion spring mechanism 4 is clamped jointly by the first arc-shaped rib 203 and the inner wall of the housing 1. The head end of the torsion spring mechanism 4 passes through the avoidance hole 202 until the head end of the torsion spring mechanism 4 abuts against the limiting step 301 to prevent the torsion spring mechanism 4 from falling off.

[0028] Optionally, as Figure 4 and 5 shown, the housing 1 includes a middle frame 101 surrounding the periphery of the paper cartridge 2 and a bottom cover 102 installed at the bottom of the middle frame 101. Among them, a second arc-shaped rib 103 is provided on the inner wall of the middle frame 101, and the first arc-shaped rib 203 and the second arc-shaped rib 103 clamp the body of the torsion spring mechanism 4. In this solution, the body of the torsion spring mechanism 4 is clamped jointly by the inner walls of the first arc-shaped rib 203 and the second arc-shaped rib 103 to prevent the torsion spring mechanism 4 from falling off.

[0029] In this embodiment, the tail end of the torsion spring mechanism 4 can abut against the inner wall of the housing 1. In another optional solution, as Figure 5 shown, a groove 104 is provided at the center of the second arc-shaped rib 103, and the tail end of the torsion spring mechanism 4 abuts in the groove 104, which can prevent the tail end of the torsion spring mechanism 4 from being displaced due to excessive pressure during the closing process of the cartridge cover 3 and ensure that the position of the torsion spring mechanism 4 is always at the preset position.

[0030] The above-mentioned torsion spring mechanism 4 can be a single-spring coil or multi-spring coil design. As Figure 6 shown, in one example, the torsion spring mechanism 4 includes two spring coils 401, a spring head 402 connecting the two spring coils 401, and spring tails 403 extending from each spring coil 401. Among them, the spring head 402 abuts against the limiting step 301, and the spring tails 403 abut in the groove 104. In this solution, the spring head 402 is a closed structure, which can prevent sharp springs from hurting people's hands, while the spring tails 403 are hidden under the paper cartridge 2 without the risk of hurting people. In order to reduce production costs, the spring tails 403 in this solution are selected to adopt an open structure.

[0031] As Figure 3 、 7As shown in FIG. 8 , a cantilever 302 is installed on the inner side of the bin cover 3, and a rotating shaft 303 is arranged at the end of the cantilever 302. An avoidance groove 204 for avoiding the cantilever 302 is also arranged at the edge of the paper bin 2. A fixing seat 205 is arranged below the avoidance groove 204, and a hinge hole 206 is arranged on the side of the fixing seat 205. The cantilever 302 enters the fixing seat 205 through the avoidance groove 204 until the rotating shaft 303 is inserted into the hinge hole 206. Similarly, when the bin cover 3 is closed normally, the cantilever 302 will enter the avoidance groove 204 to avoid interference between the cantilever 302 and the paper bin 2.

[0032] It should be noted that the number of cantilevers 302 is not limited in this embodiment. Theoretically, one or more cantilevers 302 can also achieve the expected function. In this embodiment, the cantilever 302 and the avoidance groove 204 and other components that cooperate with each other are mirror-image designs, aiming to provide a relatively balanced and stable hinged structure.

[0033] As another important invention of the utility model, the fixing seat 205 is made of elastic material, the rotating shaft 303 is made of rigid material, and the rotating shaft 303 and the hinge hole 206 are both shaped parts with non-circular cross-sections. When the bin cover 3 is in the closed state, the shapes and sizes of the rotating shaft 303 and the hinge hole 206 match each other and transitionally cooperate with each other. In this scheme, when the bin cover 3 is in the process of opening, the rotating shaft 7 rotates along the hinge hole 206. In this process, the hinge hole 206 squeezes the elastic hinge hole 206, and the hinge hole 206 provides damping for the rotating shaft 7 until the bin cover 3 reaches the maximum opening angle, and the hinge hole 206 clamps the rotating shaft 7 to achieve a hovering effect.

[0034] Furthermore, such as Figure 8 As shown in FIG. 1 , an intersecting narrow hole 207 is arranged on the side of the hinge hole 206, and a snap button design is arranged between the hinge hole 206 and the narrow hole 207. When the compartment cover 3 is opened to the maximum, the rotating shaft 303 rotates in the hinge hole 206. When the long direction passes over the snap button protrusion, the snap button deforms toward the narrow hole 207, and the rotating shaft 303 returns to its original position after passing over. At this point, the snap button fixes the rotating shaft 303 at the top, achieving a hovering effect.

[0035] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable ordinary technicians in the field to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the essence of the content of the utility model should be included in the protection scope of the utility model.​​

Claims

1. A small label machine pop-up cover opening structure, comprising a housing, a paper bin arranged in the housing, and a bin cover hinged at the opening end of the paper bin, characterized in that: It also includes a torsion spring mechanism, two ends of which are fixedly connected to the paper bin and the bin cover respectively.

2. The pop-up cover opening structure of a small label machine as claimed in claim 1, characterized in that: A limiting step is provided on the inner side of the bin cover, an avoidance cavity for accommodating the limiting step is provided on the edge of the paper bin, a avoidance hole is provided on the side of the avoidance cavity, a first arc-shaped rib is provided on the edge of the avoidance hole, the body of the torsion spring mechanism is installed on the outer side of the first arc-shaped rib, the head end of the torsion spring mechanism enters the avoidance cavity from the avoidance hole until it is fixed on the limiting step, and the tail end of the torsion spring mechanism is pressed against the inner wall of the shell.

3. The pop-up cover opening structure of the small label machine as claimed in claim 2, characterized in that: The shell includes a middle frame surrounding the paper bin, and a bottom cover installed at the bottom of the middle frame, wherein the inner wall of the middle frame is provided with a second arc-shaped rib, and the first arc-shaped rib and the second arc-shaped rib fasten the body of the torsion spring mechanism.

4. The pop-up cover opening structure of a small label machine as claimed in claim 3, characterized in that: A groove is arranged at the center of the second arc-shaped rib, and the tail end of the torsion spring mechanism abuts against the groove.

5. The pop-up cover opening structure of a small label machine as claimed in claim 4, characterized in that: The torsion spring mechanism includes two spring coils, a spring head connecting the two spring coils, and a spring tail extending from each spring coil, wherein the spring head abuts against the limiting step and the spring tail abuts against the groove.

6. The pop-up cover opening structure of a small label machine as claimed in claim 1, characterized in that: A cantilever is installed on the inner side of the bin cover, a rotating shaft is provided at the end of the cantilever, and an avoidance groove for avoiding the cantilever is provided at the edge of the paper bin. A fixed seat is provided below the avoidance groove, and a hinge hole is provided on the side of the fixed seat. The cantilever enters the fixed seat through the avoidance groove until the rotating shaft is inserted into the hinge hole.

7. The pop-up cover opening structure of a small label machine as claimed in claim 6, characterized in that: The fixing seat is made of elastic material, and the rotating shaft and the hinge hole are both special-shaped parts with non-circular cross-sections.

8. The pop-up cover opening structure of a small label machine as claimed in claim 7, characterized in that: The side edges of the hinge hole are provided with intersecting narrow holes.

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