Thermal desktop barcode printer cover opening anti-collision stable positioning structure

Abstract

The present invention belongs to the technical field of thermal desktop barcode printers, and in particular relates to a positioning structure for thermal desktop barcode printers that is anti-collision and stable when the cover is opened, comprising an inner upper bin and an inner lower bin, wherein the inner upper bin is located at the top of the inner lower bin, and a rotating arm is symmetrically fixedly installed on the bottom of the rear side of the inner upper bin, and a fixed seat is fixedly installed on the rear side of the inner lower bin. By means of two elastic pads, when the inner upper bin and the inner lower bin are closed, under the buffering and elastic action of the two elastic pads, the inner upper bin and the inner lower bin will not collide and generate noise, and the service life of the whole machine can be better protected. By means of the arc groove and positioning column, and the top of the positioning column is in an arc structure, it is ensured that once the inner upper bin is rotated upward, it is fixed and cannot automatically rotate downward, so as to ensure that when the inner upper bin in the thermal desktop barcode printer is opened, it can be fixed, and after flipping over, the center of gravity is lost, and the inner upper bin will not fall and crush paper or palms, thereby avoiding affecting the printing effect and quality.

Description

Technical Field

[0001] The invention belongs to the technical field of thermal desktop barcode printers, and in particular relates to a positioning structure for thermal desktop barcode printers that is anti-collision and stable when opening a cover. Background Art

[0002] Thermal desktop barcode printer is a device commonly used to print barcodes, labels and receipts. Its operating principle and design enable it to play an important role in various industries. The printing speed is usually 50-300 mm per second, depending on the device model and the type of label used. The printing resolution is generally 203dpi (dots per inch) or 300dpi. 300dpi is suitable for labels that require high-quality graphics and text.

[0003] When the current thermal desktop barcode printer is used, the inner upper bin in the thermal desktop barcode printer cannot be fixed when it is opened, and it is easy to lose the center of gravity after turning over, causing the inner upper bin to suddenly fall and crush the paper or palm, affecting the printing effect and quality, and the sudden fall of the inner upper bin produces excessive noise. In view of this, we propose a stable positioning structure for opening the cover of the thermal desktop barcode printer to prevent collision. Summary of the invention

[0004] The object of the present invention is to provide a stable positioning structure for opening the cover of a thermal desktop barcode printer to prevent collision, so as to solve the problems raised in the above-mentioned background technology.

[0005] In view of this, the present invention provides a stable positioning structure for opening the cover of a thermal desktop barcode printer with anti-collision, comprising an inner upper bin and an inner lower bin, wherein the inner upper bin is located at the top of the inner lower bin, a rotating arm is symmetrically fixedly installed at the bottom of the rear side of the inner upper bin, a fixed seat is fixedly installed at the rear side of the inner lower bin, and the fixed seat is located between the two rotating arms, and further comprises:

[0006] Two positioning shaft holes, the two positioning shaft holes are respectively opened on the two rotating arms, and the positioning shaft holes are provided with a plurality of arc grooves;

[0007] Two limiting grooves, the two limiting grooves are respectively arranged on both sides of the fixing seat, and the two limiting grooves are respectively connected with the two positioning shaft holes;

[0008] Two limiting plates 1, the two limiting plates 1 are slidably mounted in the two limiting grooves respectively, and a positioning shaft is fixedly mounted on one side of the two limiting plates 1, and one end of the two positioning shafts respectively penetrates one end of the two limiting grooves and extends into the corresponding positioning shaft holes;

[0009] An elastic component, the elastic component is located in the fixing seat and is used to press the two limit plates away from each other;

[0010] Two slide grooves 1, the two slide grooves 1 are respectively opened in the two positioning shafts, and the top of the slide groove 1 is provided with a slide groove 2 connected with the corresponding positioning shaft hole, and a limit plate 2 is slidably installed in the slide groove 1, and a positioning column and a spring 2 are fixedly installed on the upper and lower sides of the limit plate 2, and the upper end of the limit plate 2 passes through the slide groove 2 and the positioning shaft hole and extends into the corresponding arc groove;

[0011] Two slide grooves three, the two slide grooves three are respectively opened at one end of the two positioning shafts, and the two slide grooves three are respectively connected with the two slide grooves one, and a rectangular rod fixed with the corresponding limiting plate two is slidably installed in the slide groove three;

[0012] Two elastic pads are respectively fixedly mounted on the bottom of the inner upper bin and the top of the inner lower bin.

[0013] In the technical solution, by setting two elastic pads, when the inner upper bin and the inner lower bin are closed, under the buffering and elastic action of the two elastic pads, the inner upper bin and the inner lower bin will not collide and generate noise, and the service life of the whole machine can be better protected;

[0014] By means of the provided positioning shaft, limit plate one, elastic component, limit plate two, positioning column, spring two and rectangular rod, when the inner upper warehouse needs to be opened, the inner upper warehouse can be lifted up and allowed to rotate with the positioning shaft as the axis. When the inner upper warehouse is rotating, the inner wall of the arc groove abuts against and squeezes the top of the positioning column, so that the positioning column moves downward in the second slide groove and drives the limit plate two to squeeze the spring two in the first slide groove to contract. At the same time, the limit plate two also drives the rectangular rod to move downward in the third slide groove. Subsequently, when the upper end of the positioning column is aligned with the next arc groove, the spring two rebounds and stretches and squeezes the limit plate two to drive the positioning column and the rectangular rod to move upward. Subsequently, under the squeezing of the inner walls of the remaining several arc grooves, the positioning column repeatedly moves up and down until the inner upper warehouse is perpendicular to the inner lower warehouse, and the top of the positioning column is inserted into the last arc groove.

[0015] When removing the inner upper bin from the inner lower bin, the personnel presses down the rectangular rod, so that the rectangular rod drives the limit plate 2 to move downward and squeeze the spring 2 to contract. At the same time, the limit plate 2 also drives the positioning column to move downward until the top of the positioning column moves from the arc groove into the slide groove 2; then, the personnel squeezes one end of the positioning shaft with their fingers and moves it into the limit groove in the positioning shaft hole, and the positioning shaft drives the limit plate 1 to move in the limit groove and squeezes the elastic component to contract. After one end of the positioning shaft enters the limit groove, the personnel can remove the two rotating arms from the fixed seat to remove the inner upper bin from the inner lower bin.

[0016] In the above technical solution, further, the inner upper bin and the rotating arm are an integrally formed structure, and the inner lower bin and the fixing seat are an integrally formed structure.

[0017] In this technical solution, the structural stability of the inner upper bin and the rotating arm is ensured, and the structural stability of the inner lower bin and the fixed seat is ensured.

[0018] In the above technical solution, further, the limiting plate 1 and the positioning shaft are an integrally formed structure, and the limiting plate 1 is a rectangular structure, and the positioning shaft is a circular structure.

[0019] In this technical solution, the structural stability of the limit plate 1 and the positioning shaft is guaranteed.

[0020] In the above technical solution, further, one end of the limit groove is a rectangular structure, and the other end is a circular structure, and the limit plate 1 and the positioning shaft are both slidably connected to the limit groove.

[0021] In this technical solution, it is ensured that both the limit plate 1 and the positioning shaft can move in the limit groove, and when the limit plate 1 and the limit groove cooperate, the positioning shaft will not rotate in the limit groove, thereby ensuring the structural stability of the positioning shaft.

[0022] In the above technical solution, further, the elastic component includes:

[0023] Two springs 1 are respectively fixedly installed in the two limiting grooves, and one end of the spring 1 is tightly welded to one side of the limiting plate 1.

[0024] In the present technical scheme, it is ensured that spring one can squeeze limit plate one in the limit groove, and it is ensured that a person squeezes one end of the positioning shaft with his fingers to move it into the limit groove in the positioning shaft hole, and the positioning shaft drives limit plate one to move in the limit groove and squeeze spring one to contract, until one end of the positioning shaft enters the limit groove, the person can remove the two rotating arms from the fixed seat, and then remove the inner upper bin from the inner lower bin, and then, spring one rebounds and stretches and squeezes limit plate one to move in the limit groove, and one end of the positioning shaft is squeezed out of the limit groove by limit plate one.

[0025] In the above technical solution, further, the limit plate 2, the positioning column and the rectangular rod are an integrally formed structure, the limit plate 2 and the positioning column are both slidably connected to the slide groove 1, the positioning column is slidably connected to the slide groove 2, and the rectangular rod is slidably connected to the slide groove 3.

[0026] In this technical solution, the structural stability of the limit plate 2, the positioning column and the rectangular rod is ensured, ensuring that the limit plate 2 and the positioning column can slide normally in the slide groove 1, the positioning column can slide normally in the slide groove 2, and the rectangular rod can slide normally in the slide groove 3.

[0027] In the above technical solution, further, the length of the rectangular rod is greater than the width of the sliding groove three.

[0028] In this technical solution, the hand of the person who is convenient can press on the rectangular rod, so that the rectangular rod slides downward in the sliding groove three.

[0029] In the above technical solution, further, the top end of the positioning column is an arc-shaped structure, and the top end of the positioning column is plug-fitted with the arc-shaped groove.

[0030] In the present technical solution, in the process of opening the inner upper bin upward and rotating it around the positioning axis, the top of the positioning column will be squeezed by the inner wall of the arc groove, so that the positioning column moves downward in the second slide groove and drives the limit plate second to squeeze the spring second in the first slide groove to contract. Once the inner upper bin is rotated upward, it is fixed and cannot rotate downward automatically, ensuring that the inner upper bin in the thermal desktop barcode printer can be fixed when it is opened, and the inner upper bin will not fall and crush the paper or palm if it loses its center of gravity after flipping, thereby avoiding affecting the printing effect and quality.

[0031] In the above technical solution, further, the positioning shaft is rotatably connected to the positioning shaft hole.

[0032] In this technical solution, it is ensured that the positioning shaft hole can rotate on the positioning shaft.

[0033] In the above technical solution, further, the cross-sectional dimension of the second limit plate is smaller than the cross-sectional dimension of the positioning column, and the cross-sectional dimension of the second limit plate is equal to the cross-sectional dimension of the first slide groove.

[0034] In this technical solution, it is ensured that the positioning column will not fall off in the second slide groove.

[0035] The beneficial effects of the present invention are:

[0036] 1. The thermal desktop barcode printer has a stable positioning structure that prevents collision when opening the cover. Through the two elastic pads, when the inner upper bin and the inner lower bin are closed, under the buffering and elastic action of the two elastic pads, the inner upper bin and the inner lower bin will not collide and generate noise, and can also better protect the service life of the whole machine.

[0037] 2. The anti-collision and stable positioning structure of the thermal desktop barcode printer when opening the cover is provided with an arc groove and a positioning column, and the top of the positioning column is an arc structure, which ensures that in the process of opening the inner upper warehouse upward and rotating the inner upper warehouse with the positioning axis as the axis, the top of the positioning column will be squeezed by the inner wall of the arc groove, so that the positioning column moves downward in the second slide groove and drives the limit plate 2 to squeeze the spring 2 in the first slide groove to contract. Once the inner upper warehouse rotates upward, it is fixed and cannot rotate downward automatically, ensuring that the inner upper warehouse in the thermal desktop barcode printer can be fixed when it is opened, and the inner upper warehouse will not fall and crush the paper or palm if it loses the center of gravity after flipping, thereby avoiding affecting the printing effect and quality.

[0038] 3. The thermal desktop barcode printer has a stable positioning structure that is anti-collision when the cover is opened, through the arranged positioning shaft hole, limit slot, positioning shaft, limit plate 1, slide slot 1, slide slot 2, slide slot 3, spring 1, limit plate 2, positioning column, spring 2 and rectangular rod, which makes it convenient for personnel to remove the two rotating arms from the fixed seat and remove the inner upper bin from the inner lower bin, so that it is easy to replace the inner upper bin or the inner lower bin when it is damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 It is a schematic diagram of the explosion structure of the inner upper bin and the inner lower bin in the present invention;

[0041] Figure 3 It is a structural schematic diagram of the inner upper bin in the present invention;

[0042] Figure 4 It is a structural schematic diagram of the inner lower bin in the present invention;

[0043] Figure 5 It is a schematic diagram of the detailed internal structure of the fixing seat in the present invention;

[0044] Figure 6 It is a schematic cross-sectional structural diagram of the fixing seat in the present invention;

[0045] Figure 7 It is a schematic cross-sectional structural diagram of the rotating arm in the present invention;

[0046] Figure 8 It is a schematic diagram of the structure of the local explosion in the present invention.

[0047] The symbols in the figure are:

[0048] 1. Inner upper bin; 2. Rotating arm; 3. Positioning shaft hole; 31. Arc groove; 4. Inner lower bin; 5. Fixed seat; 51. Limiting groove; 6. Positioning shaft; 61. Limiting plate 1; 62. Slide 1; 63. Slide 2; 64. Slide 3; 7. Spring 1; 8. Limiting plate 2; 81. Positioning column; 82. Rectangular rod; 83. Spring 2. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0050] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0052] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0053] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples. Embodiment 1:

[0054] See also Figure 1-8 As shown in the figure, this embodiment provides a stable positioning structure for opening the cover of a thermal desktop barcode printer to prevent collision, including an inner upper bin 1 and an inner lower bin 4, wherein the inner upper bin 1 is located at the top of the inner lower bin 4, and a rotating arm 2 is symmetrically fixedly installed at the bottom of the rear side of the inner upper bin 1, and a fixed seat 5 is fixedly installed at the rear side of the inner lower bin 4, and the fixed seat 5 is located between the two rotating arms 2, and also includes:

[0055] Two positioning shaft holes 3, the two positioning shaft holes 3 are respectively opened on the two rotating arms 2, and a plurality of arc grooves 31 are opened on the positioning shaft holes 3;

[0056] Two limiting grooves 51, the two limiting grooves 51 are respectively opened on both sides of the fixing seat 5, and the two limiting grooves 51 are respectively connected with the two positioning shaft holes 3;

[0057] Two limiting plates 61, the two limiting plates 61 are slidably mounted in the two limiting grooves 51, and one side of the two limiting plates 61 is fixedly mounted with a positioning shaft 6, one end of the two positioning shafts 6 respectively passes through one end of the two limiting grooves 51 and extends into the corresponding positioning shaft hole 3;

[0058] An elastic component, which is located in the fixing seat 5 and is used to press the two limiting plates 61 away from each other;

[0059] Two slide grooves 62, the two slide grooves 62 are respectively opened in the two positioning shafts 6, and the top of the slide groove 62 is provided with a slide groove 63 connected with the corresponding positioning shaft hole 3, and a limit plate 8 is slidably installed in the slide groove 62, and a positioning column 81 and a spring 83 are fixedly installed on the upper and lower sides of the limit plate 8, respectively, and the upper end of the limit plate 8 passes through the slide groove 63 and the positioning shaft hole 3 and extends into the corresponding arc groove 31;

[0060] Two slide grooves 3 64, the two slide grooves 3 64 are respectively opened at one end of the two positioning shafts 6, and the two slide grooves 3 64 are respectively connected to the two slide grooves 1 62, and a rectangular rod 82 fixed to the corresponding limit plate 2 8 is slidably installed in the slide groove 3 64;

[0061] Two elastic pads are fixedly mounted on the bottom of the inner upper bin 1 and the top of the inner lower bin 4 respectively.

[0062] It can be seen from the present embodiment that by setting two elastic pads, when the inner upper bin 1 and the inner lower bin 4 are closed, under the buffering and elastic action of the two elastic pads, the inner upper bin 1 and the inner lower bin 4 will not collide and generate noise, and the service life of the whole machine can be better protected;

[0063] By means of the positioning shaft 6, the limiting plate 1 61, the elastic component, the limiting plate 2 8, the positioning column 81, the spring 2 83 and the rectangular rod 82, when the inner upper bin 1 needs to be opened, the inner upper bin 1 can be opened upward and the inner upper bin 1 can be rotated around the positioning shaft 6. When the inner upper bin 1 is rotating, the inner wall of the arc groove 31 abuts against the top of the positioning column 81 and squeezes it, so that the positioning column 81 moves downward in the slide groove 2 63 and drives the limiting plate 2 8 to squeeze the spring 2 8 in the slide groove 1 62. 3 is contracted, and at the same time, the second limit plate 8 also drives the rectangular rod 82 to move downward in the third slide groove 64. Subsequently, when the upper end of the positioning column 81 is aligned with the next arc groove 31, the second spring 83 rebounds and stretches and squeezes the second limit plate 8 to drive the positioning column 81 and the rectangular rod 82 to move upward. Subsequently, under the squeezing of the inner walls of the remaining arc grooves 31, the positioning column 81 repeatedly moves up and down until the inner upper bin 1 is perpendicular to the inner lower bin 4, and the top end of the positioning column 81 is inserted into the last arc groove 31;

[0064] When removing the inner upper warehouse 1 from the inner lower warehouse 4, the personnel presses down the rectangular rod 82, so that the rectangular rod 82 drives the limit plate 2 8 to move downward and squeeze the spring 2 83 to contract. At the same time, the limit plate 2 8 also drives the positioning column 81 to move downward until the top of the positioning column 81 moves from the arc groove 31 into the slide groove 2 63; then, the personnel squeezes one end of the positioning shaft 6 in the positioning shaft hole 3 with their fingers and moves it into the limit groove 51, and the positioning shaft 6 drives the limit plate 1 61 to move in the limit groove 51 and squeezes the elastic component to contract, until one end of the positioning shaft 6 enters the limit groove 51, the personnel can remove the two rotating arms 2 from the fixing seat 5, and then remove the inner upper warehouse 1 from the inner lower warehouse 4. Embodiment 2:

[0065] The present embodiment provides a stable positioning structure for opening the cover of a thermal desktop barcode printer to prevent collision. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: the inner upper bin 1 and the rotating arm 2 are an integrally formed structure, and the inner lower bin 4 and the fixed seat 5 are an integrally formed structure.

[0066] It can be seen from this embodiment that the structural stability of the inner upper bin 1 and the rotating arm 2 is ensured, and the structural stability of the inner lower bin 4 and the fixing seat 5 is ensured. Embodiment 3:

[0067] The present embodiment provides a stable positioning structure for opening the cover of a thermal desktop barcode printer to prevent collision. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: the limit plate 61 and the positioning shaft 6 are an integrally formed structure, and the limit plate 61 is a rectangular structure, and the positioning shaft 6 is a circular structure.

[0068] It can be seen from this embodiment that the structures of the limiting plate 61 and the positioning shaft 6 are guaranteed to be stable. Embodiment 4:

[0069] The present embodiment provides a stable anti-collision positioning structure for opening the cover of a thermal desktop barcode printer. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: one end of the limit groove 51 is a rectangular structure, and the other end is a circular structure, and the limit plate 61 and the positioning shaft 6 are both slidably connected to the limit groove 51.

[0070] It can be seen from this embodiment that both the limit plate 61 and the positioning shaft 6 can move in the limit groove 51, and when the limit plate 61 and the limit groove 51 cooperate, the positioning shaft 6 will not rotate in the limit groove 51, thereby ensuring the structural stability of the positioning shaft 6. Embodiment 5:

[0071] This embodiment provides a stable positioning structure for opening the cover of a thermal desktop barcode printer to prevent collision. In addition to the technical solutions of the above embodiments, it also has the following technical features. The elastic component includes:

[0072] Two springs 7 are fixedly installed in the two limiting grooves 51 respectively, and one end of the spring 7 is tightly welded to one side of the limiting plate 61.

[0073] It can be seen from the present embodiment that the spring 7 can squeeze the limiting plate 61 in the limiting groove 51, and the personnel can squeeze one end of the positioning shaft 6 with their fingers to move it into the limiting groove 51 in the positioning shaft hole 3, and the positioning shaft 6 drives the limiting plate 61 to move in the limiting groove 51 and squeeze the spring 7 to contract until one end of the positioning shaft 6 enters the limiting groove 51. The personnel can then remove the two rotating arms 2 from the fixing seat 5, and then remove the inner upper bin 1 from the inner lower bin 4. Then, the spring 7 rebounds and stretches and squeezes the limiting plate 61 to move in the limiting groove 51, and the limiting plate 61 squeezes one end of the positioning shaft 6 out of the limiting groove 51. Embodiment 6:

[0074] The present embodiment provides a stable positioning structure for opening the cover of a thermal desktop barcode printer to prevent collision. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: the limiting plate 2 8, the positioning column 81 and the rectangular rod 82 are an integrally formed structure, the limiting plate 2 8 and the positioning column 81 are both slidably connected to the slide groove 1 62, the positioning column 81 is slidably connected to the slide groove 2 63, and the rectangular rod 82 is slidably connected to the slide groove 3 64.

[0075] It can be seen from this embodiment that the structures of the limit plate 2 8 , the positioning column 81 and the rectangular rod 82 are ensured to be stable, so that the limit plate 2 8 and the positioning column 81 can slide normally in the slide groove 1 62 , the positioning column 81 can slide normally in the slide groove 2 63 , and the rectangular rod 82 can slide normally in the slide groove 3 64 . Embodiment 7:

[0076] This embodiment provides a stable positioning structure for opening the cover of a thermal desktop barcode printer to prevent collision. In addition to the technical solutions of the above embodiments, it also has the following technical features: the length of the rectangular rod 82 is greater than the width of the sliding groove 64.

[0077] It can be seen from this embodiment that the hand of the convenience personnel can press on the rectangular rod 82, so that the rectangular rod 82 slides downward in the sliding groove three 64. Embodiment 8:

[0078] This embodiment provides a stable positioning structure for opening the cover of a thermal desktop barcode printer to prevent collision. In addition to the technical solutions of the above embodiments, it also has the following technical features: the top of the positioning column 81 is an arc-shaped structure, and the top of the positioning column 81 is plugged into the arc groove 31.

[0079] It can be seen from the present embodiment that, in the process of opening the inner upper bin 1 upward and rotating the inner upper bin 1 around the positioning shaft 6, the top of the positioning column 81 will be squeezed by the inner wall of the arc groove 31, so that the positioning column 81 moves downward in the second slide groove 63 and drives the limit plate 2 8 to squeeze the spring 2 83 in the first slide groove 62 to contract. Once the inner upper bin 1 rotates upward, it is fixed and cannot rotate downward automatically, ensuring that the inner upper bin 1 in the thermal desktop barcode printer can be fixed when it is opened, and will not fall and crush the paper or palm if it loses its center of gravity after being flipped, thereby avoiding affecting the printing effect and quality. Embodiment 9:

[0080] This embodiment provides a stable positioning structure for opening the cover of a thermal desktop barcode printer to prevent collision. In addition to the technical solutions of the above embodiments, it also has the following technical features: the positioning shaft 6 is rotatably connected to the positioning shaft hole 3.

[0081] It can be seen from this embodiment that it is ensured that the positioning shaft hole 3 can rotate on the positioning shaft 6 . Embodiment 10:

[0082] The present embodiment provides a stable positioning structure for opening the cover of a thermal desktop barcode printer to prevent collision. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: the cross-sectional dimension of the limit plate 2 8 is smaller than the cross-sectional dimension of the positioning column 81, and the cross-sectional dimension of the limit plate 2 8 is equal to the cross-sectional dimension of the slide groove 1 62.

[0083] It can be seen from this embodiment that the positioning post 81 is ensured not to fall off in the second slide groove 63 .

[0084] Working principle: When the inner upper bin 1 and the inner lower bin 4 are closed, under the buffering and elastic effect of the two elastic pads, the inner upper bin 1 and the inner lower bin 4 will not collide and generate noise, and can also better protect the service life of the whole machine;

[0085] When the inner upper warehouse 1 needs to be opened, the inner upper warehouse 1 can be opened upward and allowed to rotate with the positioning shaft 6 as the axis. When the inner upper warehouse 1 is rotating, the inner wall of the arc groove 31 abuts against the top of the positioning post 81 and squeezes it, so that the positioning post 81 moves downward in the second slide groove 63 and drives the limit plate 2 8 to squeeze the spring 2 83 in the first slide groove 62 to contract. At the same time, the limit plate 2 8 also drives the rectangular rod 82 to move downward in the third slide groove 64. Subsequently, when the upper end of the positioning post 81 is aligned with the next arc groove 31, the spring 2 83 rebounds and stretches and squeezes the limit plate 2 8 to drive the positioning post 81 and the rectangular rod 82 to move upward. Subsequently, under the squeezing of the inner walls of the remaining several arc grooves 31, the positioning post 81 repeatedly moves up and down until the inner upper warehouse 1 is perpendicular to the inner lower warehouse 4, and the top of the positioning post 81 is inserted into the last arc groove 31;

[0086] When removing the inner upper warehouse 1 from the inner lower warehouse 4, the personnel presses down the rectangular rod 82, so that the rectangular rod 82 drives the limit plate 2 8 to move downward and squeeze the spring 2 83 to contract. At the same time, the limit plate 2 8 also drives the positioning column 81 to move downward until the top of the positioning column 81 moves from the arc groove 31 into the slide groove 2 63; then, the personnel squeezes one end of the positioning shaft 6 in the positioning shaft hole 3 with their fingers and moves it into the limit groove 51, and the positioning shaft 6 drives the limit plate 1 61 to move in the limit groove 51 and squeezes the elastic component to contract, until one end of the positioning shaft 6 enters the limit groove 51, the personnel can remove the two rotating arms 2 from the fixing seat 5, and then remove the inner upper warehouse 1 from the inner lower warehouse 4.

[0087] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A thermal desktop barcode printer cover opening anti-collision stable positioning structure, comprising an inner upper bin (1) and an inner lower bin (4), wherein the inner upper bin (1) is located on the top of the inner lower bin (4), a rotating arm (2) is symmetrically fixedly installed at the rear bottom of the inner upper bin (1), a fixing seat (5) is fixedly installed at the rear side of the inner lower bin (4), and the fixing seat (5) is located between the two rotating arms (2), characterized in that: Also includes: Two positioning shaft holes (3), the two positioning shaft holes (3) are respectively opened on the two rotating arms (2), and the positioning shaft holes (3) are provided with a plurality of arc-shaped grooves (31); Two limiting grooves (51), the two limiting grooves (51) are respectively arranged on two sides of the fixing seat (5), and the two limiting grooves (51) are respectively connected to the two positioning shaft holes (3); Two limiting plates (61), the two limiting plates (61) are slidably mounted in the two limiting grooves (51) respectively, and a positioning shaft (6) is fixedly mounted on one side of the two limiting plates (61), one end of the two positioning shafts (6) respectively passes through one end of the two limiting grooves (51) and extends into the corresponding positioning shaft hole (3); An elastic component, the elastic component is located in the fixing seat (5) and is used to press the two limiting plates (61) away from each other; Two slide grooves (62), the two slide grooves (62) are respectively arranged in the two positioning shafts (6), and the top of the slide groove (62) is provided with a slide groove (63) connected with the corresponding positioning shaft hole (3), and a limit plate (8) is slidably installed in the slide groove (62), and a positioning column (81) and a spring (83) are fixedly installed on the upper and lower sides of the limit plate (8), and the upper end of the limit plate (8) passes through the slide groove (63) and the positioning shaft hole (3) and extends into the corresponding arc groove (31); Two slide grooves three (64), the two slide grooves three (64) are respectively opened at one end of the two positioning shafts (6), and the two slide grooves three (64) are respectively connected to the two slide grooves one (62), and a rectangular rod (82) fixed to the corresponding limit plate two (8) is slidably installed in the slide groove three (64); Two elastic pads are respectively fixedly mounted on the bottom of the inner upper bin (1) and the top of the inner lower bin (4).

2. The anti-collision and stable positioning structure for opening the cover of a thermal desktop barcode printer according to claim 1, characterized in that: The inner upper bin (1) and the rotating arm (2) are integrally formed structures, and the inner lower bin (4) and the fixing seat (5) are integrally formed structures.

3. The anti-collision and stable positioning structure for opening the cover of a thermal desktop barcode printer according to claim 1, characterized in that: The limiting plate 1 (61) and the positioning shaft (6) are an integrally formed structure, and the limiting plate 1 (61) is a rectangular structure, while the positioning shaft (6) is a circular structure.

4. The anti-collision and stable positioning structure for opening the cover of a thermal desktop barcode printer according to claim 3, characterized in that: One end of the limiting groove (51) is in a rectangular structure, and the other end is in a circular structure. The limiting plate 1 (61) and the positioning shaft (6) are both slidably connected to the limiting groove (51).

5. The anti-collision and stable positioning structure for opening the cover of a thermal desktop barcode printer according to claim 1, characterized in that: The elastic component comprises: Two springs (7), the two springs (7) are respectively fixedly mounted in the two limiting grooves (51), and one end of the spring (7) is tightly welded to one side of the limiting plate (61).

6. The anti-collision and stable positioning structure for opening the cover of a thermal desktop barcode printer according to claim 1, characterized in that: The second limiting plate (8), the positioning column (81) and the rectangular rod (82) are an integrally formed structure; the second limiting plate (8) and the positioning column (81) are both slidably connected to the first slide groove (62); the positioning column (81) is slidably connected to the second slide groove (63); and the rectangular rod (82) is slidably connected to the third slide groove (64).

7. The anti-collision and stable positioning structure for opening the cover of a thermal desktop barcode printer according to claim 1, characterized in that: The length of the rectangular rod (82) is greater than the width of the third slide groove (64).

8. The anti-collision and stable positioning structure for opening the cover of a thermal desktop barcode printer according to claim 1, characterized in that: The top end of the positioning column (81) is in an arc-shaped structure, and the top end of the positioning column (81) is plugged into and matched with the arc-shaped groove (31).

9. The anti-collision and stable positioning structure for opening the cover of a thermal desktop barcode printer according to claim 1, characterized in that: The positioning shaft (6) is rotatably connected to the positioning shaft hole (3).

10. The anti-collision and stable positioning structure for opening the cover of a thermal desktop barcode printer according to claim 1, characterized in that: The cross-sectional dimension of the second limiting plate (8) is smaller than the cross-sectional dimension of the positioning column (81), and the cross-sectional dimension of the second limiting plate (8) is equal to the cross-sectional dimension of the first sliding groove (62).

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