Anti-friction self-locking printer consumables width adjustment mechanism and printer

Abstract

The present invention discloses a friction-proof self-locking printer consumable width adjustment mechanism and a printer, comprising: a middle frame; a lower outer cover, the middle frame is adaptively assembled in the lower outer cover; an adjustment plate, which can be assembled inside the middle frame, and the adjustment plate includes a first part and a second part, and the projections of the first part and the second part on the vertical plane where the moving direction line of the adjustment plate is located are arranged perpendicular to each other; an outer slider, at least partially inserted into the lower outer cover and engaged with the second part, and the force position formed between the outer slider and the middle frame is on the plane where the slider is located, so as to avoid the force point being generated on the first part, causing the width adjustment plate to tilt and self-lock due to torque and deformation. When performing preset adjustment of the consumables adaptive width, when pressing the outer slider to slide, the force position between the outer slider and the width adjustment plate is on the plane where the outer slider is located, thereby avoiding the phenomenon of applying force to the first part to generate torque and deformation to cause friction self-locking.

Description

Technical Field

[0001] The invention belongs to the technical field of printers, and in particular relates to an anti-friction self-locking printer consumables width adjustment mechanism and a printer. Background Art

[0002] If the thermal printers currently on the market need to be compatible with consumables that are smaller than the standard width, they need to be equipped with a consumable width adjuster structure. Common consumable width adjuster structures are divided into three types: paper shaft type, offset consumable sliding baffle type, and center consumable sliding baffle type; the user of the paper shaft type consumable width adjuster needs to remove the paper shaft structure during the process of replacing consumables and presetting the consumable width. In this process, it is very easy to put the consumables, paper shaft, and consumable width limiter in the wrong place, which leads to poor user experience; offset consumable sliding baffle type and center consumable sliding baffle type consumable width adjusters, although the consumable width limiter is integrated with the machine in structure to reduce user misoperation, these two types of structures have extremely high requirements on the accuracy and mechanical properties of the corresponding components in order to reduce the friction self-locking phenomenon during the adjustment of the consumable width limiter, and have disadvantages that are not conducive to production cost control. In addition, there are many restrictions on the product appearance, such as the need to reserve a hand position and the depth constraint of the paper bin, which is not conducive to the update and iteration of product design.

[0003] Therefore, it is necessary to design a corresponding structure that can solve the friction self-locking phenomenon existing in the existing adjustment process. Summary of the invention

[0004] The object of the present invention is to provide a friction-proof self-locking printer consumables width adjustment mechanism and a printer to solve the problems raised in the above-mentioned background technology.

[0005] In view of this, the present invention provides an anti-friction self-locking printer consumables width adjustment mechanism, comprising:

[0006] Middle frame;

[0007] A lower outer cover, wherein the middle frame is adaptively assembled in the lower outer cover;

[0008] An adjustment plate, which can be assembled inside the middle frame, and the adjustment plate includes a first part and a second part, the first part is in an upright state, and the second part is positioned and matched with the middle frame, so that the adjustment plate can slide back and forth in the middle frame along the length direction thereof, so as to adjust the structure to adapt to consumables of different width specifications through the position of the adjustment plate, the second part at least partially extends out of the middle frame, and the projections of the first part and the second part on the vertical plane where the moving direction line of the adjustment plate is located are arranged perpendicular to each other, and the second part is located below the first part;

[0009] The outer slider is at least partially inserted into the lower outer cover and snap-fitted with the second part. The part of the outer slider extending into the lower outer cover and the second part form a rigid whole, so that when a force is applied to the outer slider along the length direction of the lower outer cover, a force position formed between the outer slider and the middle frame is on the plane where the slider is located, so as to prevent the force point from being generated on the first part, causing the width adjustment plate to tilt and self-lock due to the torque and deformation.

[0010] In the present invention, a further implementation scheme is that the second part of the width adjustment plate at least partially extends out of the middle frame and is built into the lower outer cover, and the second part generates a force position with the inner wall of the middle frame. The outer sliding block extends into the lower outer cover to form a direct contact with the second part. When a force is applied to the outer sliding block, the force indirectly pushes the second part to slide back and forth in the middle frame.

[0011] In the present invention, a further implementation scheme is that the first part is a vertical plate, the vertical plate is in an upright state, the width adjustment plate also includes a bottom sliding block formed at the bottom of the vertical plate, the bottom sliding block is slidably adapted to the bottom wall of the middle frame, and the second part is a connecting buckle formed on the bottom sliding block, the connecting buckle passes through the middle frame and is slidably connected to the middle frame, and the plane where the connecting buckle is located is perpendicular to the plane where the vertical plate is located.

[0012] In the present invention, a further implementation scheme is that the outer slider includes a finger pick platform, a flying plate and a connecting hook, the outer slider is an integrally formed structure, the connecting hook is located on the flying plate, the connecting hook is located outside the upper outer cover, and the connecting hook is hooked with the buckle hole on the connecting buckle.

[0013] In the present invention, a further implementation scheme is that limiting arms are provided on both sides of the connecting hook on the flying plate, and when the connecting hook and the buckle hole are hooked, the inner side of the limiting arm presses against the outer side of the connecting buckle, so that the flying plate and the connecting hook form a rigid whole, and when external force is applied to the outer slider, the force point generated between the outer slider and the width adjustment plate is on the plane where the connecting buckle is located or the plane where the outer slider is located.

[0014] In the present invention, a further implementation scheme is that a first guide groove is provided at the lower portion of the middle frame along the length direction, and the connecting buckle passes through the first guide groove and slides in the first guide groove.

[0015] In the present invention, a further implementation scheme is that a second guide groove is provided at the lower portion of the lower outer cover along its length direction, and the outer sliding block penetrates into the second guide groove and slides in the second guide groove.

[0016] In a further embodiment of the present invention, the positions of the first guide groove and the second guide groove are staggered.

[0017] In the present invention, a further embodiment is that the width adjustment plate can rotate, and the connecting buckle can be separated from the connecting hook or the connecting hook can be hooked to the connecting buckle through two opposite rotation directions.

[0018] A printer comprises the anti-friction self-locking printer consumables width adjustment mechanism described in the above scheme.

[0019] The beneficial effects of the present invention are:

[0020] The structure includes four main parts: a middle frame, a lower outer cover, a width adjustment plate and an outer slider. The middle frame is assembled in the lower outer cover, the width adjustment plate is movably installed in the middle frame, the outer slider is slidably installed on the lower outer cover and connected to the width adjustment plate as a whole. The width adjustment plate includes a vertical plate of a first part and a connecting buckle of a second part. The connecting buckle part passes through the middle frame, and the outer slider includes a connecting hook, which is connected to the connecting buckle and is hooked into a whole. The limiting arm on the outer slider is pressed against the outer side of the connecting hook to form a rigid whole. When the preset width of the consumable is adjusted, the outer slider is pressed to slide, so that the force position between the outer slider and the width adjustment plate is on the plane where the outer slider is located, thereby avoiding the phenomenon of torque and deformation caused by the force acting on the first part to cause friction self-locking. The adjustment is simple and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 Schematic diagram of the explosion structure of the present invention Figure 1 ;

[0023] Figure 3 Schematic diagram of the explosion structure of the present invention Figure 2 ;

[0024] Figure 4 It is an assembly cross-sectional view of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the width adjustment plate of the present invention;

[0026] Figure 6 It is a schematic structural diagram of the outer sliding block of the present invention. DETAILED DESCRIPTION

[0027] 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.

[0028] 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.

[0029] 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 the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, the term "and" in the specification and claims generally indicates that the objects associated with each other are in an "or" relationship.

[0030] 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.

[0031] 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.

[0032] Embodiment 1:

[0033] This embodiment provides an anti-friction self-locking printer consumable width adjustment mechanism, which is applied to a printer and includes:

[0034] The middle frame 1 can be used to accommodate consumables. When it is necessary to adapt to the specifications of consumables that are smaller than the standard length, corresponding width adjustment adaptation is required.

[0035] The lower outer cover 2 is adapted to fit inside the middle frame 1 .

[0036] The adjustment plate 3 can be assembled inside the middle frame 1, and the adjustment plate 3 can be moved back and forth to adapt to the use of consumables smaller than the standard specifications.

[0037] The adjustment plate 3 includes a first part and a second part, the first part is in an upright state, and the second part is positioned and matched with the middle frame 1, so that the adjustment plate 3 can slide back and forth in the middle frame 1 along its length direction, so as to adapt to consumables of different width specifications through the position adjustment structure of the adjustment plate 3, the second part at least partially extends out of the middle frame 1, and the projections of the first part and the second part on the vertical plane where the moving direction line of the adjustment plate 3 is located are arranged perpendicular to each other, and the second part is located at the lower part of the first part. The existing method is to apply a force to the first part. This method not only produces a torque effect on the width adjustment plate 3 to cause the width adjustment plate 3 to rotate, but also may cause the first part to deform, and finally causes the width adjustment plate 3 to self-lock in the middle frame 1 during the movement, which is not convenient for adjustment.

[0038] The outer slider 4 is at least partially inserted into the lower outer cover 2 and snap-fitted with the second part. The part of the outer slider 4 extending into the lower outer cover 2 and the second part form a rigid whole, so that when a force is applied to the outer slider 4 along the length direction of the lower outer cover 2, the force position formed between the outer slider 4 and the middle frame 1 is on the plane where the outer slider 4 is located, so as to avoid the force point being generated on the first part, causing the width adjustment plate 3 to tilt and self-lock due to the torque and deformation. Therefore, in the fully assembled state, the force position is moved down to the bottom of the width adjustment plate 3 and on the plane where the outer slider 4 is located. In this way, when the outer slider 4 is moved and adjusted, the force directly pushes the width adjustment plate 3 to move, thereby avoiding the self-locking phenomenon caused by the torque and deformation.

[0039] Example 2

[0040] A friction-proof self-locking printer consumable width adjustment mechanism, applied to a printer, comprises:

[0041] The middle frame 1 can be used to accommodate consumables. When it is necessary to adapt to the specifications of consumables that are smaller than the standard length, corresponding width adjustment adaptation is required.

[0042] The lower outer cover 2 is adapted to fit inside the middle frame 1 .

[0043] The adjustment plate 3 can be assembled inside the middle frame 1, and the adjustment plate 3 can be moved back and forth to adapt to the use of consumables smaller than the standard specifications.

[0044] The adjustment plate 3 includes a first part and a second part, the first part is in an upright state, and the second part is positioned and matched with the middle frame 1, so that the adjustment plate 3 can slide back and forth in the middle frame 1 along its length direction, so as to adapt to consumables of different width specifications through the position adjustment structure of the adjustment plate 3, the second part at least partially extends out of the middle frame 1, and the projections of the first part and the second part on the vertical plane where the moving direction line of the adjustment plate 3 is located are arranged perpendicular to each other, and the second part is located at the lower part of the first part. The existing method is to apply a force to the first part. This method not only produces a torque effect on the width adjustment plate 3 to cause the width adjustment plate 3 to rotate, but also may cause the first part to deform, and finally causes the width adjustment plate 3 to self-lock in the middle frame 1 during the movement, which is not convenient for adjustment.

[0045] The outer slider 4 is at least partially inserted into the lower outer cover 2 and snap-fitted with the second part. The part of the outer slider 4 extending into the lower outer cover 2 and the second part form a rigid whole, so that when a force is applied to the outer slider 4 along the length direction of the lower outer cover 2, the force position formed between the outer slider 4 and the middle frame 1 is on the plane where the slider is located, so as to avoid the force point being generated on the first part, causing the width adjustment plate 3 to tilt and self-lock due to the torque and deformation. Therefore, in the fully assembled state, the force position is moved down to the bottom of the width adjustment plate 3 and on the plane where the outer slider 4 is located. In this way, when the outer slider 4 is moved and adjusted, the force directly pushes the width adjustment plate 3 to move, thereby avoiding the self-locking phenomenon caused by the torque and deformation.

[0046] In this embodiment, the second portion of the width adjustment plate 3 at least partially extends out of the middle frame 1 and is built into the lower outer cover 2. The second portion generates a force position with the inner wall of the middle frame 1. The outer sliding block 4 extends into the lower outer cover 2 to form a direct contact with the second portion. When a force is applied to the outer sliding block 4, the force indirectly pushes the second portion to slide back and forth in the middle frame 1.

[0047] Specifically, the first part is a vertical plate 30, the vertical plate 30 is in an upright state, the width adjustment plate 3 also includes a bottom slider 31 formed at the bottom of the vertical plate 30, the bottom slider 31 is slidably adapted to the bottom wall of the middle frame 1, the second part is a connecting buckle 32 formed on the bottom slider 31, the connecting buckle 32 passes through the middle frame 1 and is slidably connected to the middle frame 1, and the plane where the connecting buckle 32 is located is perpendicular to the plane where the vertical plate 30 is located. This allows the force to be taken at the most appropriate position, which can also achieve the most labor-saving effect.

[0048] The lower portion of the middle frame 1 is provided with a first guide groove 10 along the length direction, and the connecting buckle 32 passes through the first guide groove 10 and slides in the first guide groove 10 .

[0049] The outer slider 4 includes a finger-picking platform 40, a flying plate 41 and a connecting hook 42. The outer slider 4 is an integrally formed structure. The connecting hook 42 is located on the flying plate 41. The connecting hook 42 is located outside the upper outer cover, and the connecting hook 42 is hooked with the buckle hole 320 on the connecting buckle 32. The lower portion of the lower outer cover 2 is provided with a second guide groove 20 along its length direction. The outer slider 4 penetrates into the second guide groove 20 and slides in the second guide groove 20.

[0050] Example 3

[0051] A friction-proof self-locking printer consumables width adjustment mechanism, comprising:

[0052] The middle frame 1 can be used to accommodate consumables. When it is necessary to adapt to the specifications of consumables that are smaller than the standard length, corresponding width adjustment adaptation is required.

[0053] The lower outer cover 2 is adapted to fit inside the middle frame 1 .

[0054] The adjustment plate 3 can be assembled inside the middle frame 1, and the adjustment plate 3 can be moved back and forth to adapt to the use of consumables smaller than the standard specifications.

[0055] The adjustment plate 3 includes a first part and a second part, the first part is in an upright state, and the second part is positioned and matched with the middle frame 1, so that the adjustment plate 3 can slide back and forth in the middle frame 1 along its length direction, so as to adapt to consumables of different width specifications through the position adjustment structure of the adjustment plate 3, the second part at least partially extends out of the middle frame 1, and the projections of the first part and the second part on the vertical plane where the moving direction line of the adjustment plate 3 is located are arranged perpendicular to each other, and the second part is located at the lower part of the first part. The existing method is to apply a force to the first part. This method not only produces a torque effect on the width adjustment plate 3 to cause the width adjustment plate 3 to rotate, but also may cause the first part to deform, and finally causes the width adjustment plate 3 to self-lock in the middle frame 1 during the movement, which is not convenient for adjustment.

[0056] The outer slider 4 is at least partially inserted into the lower outer cover 2 and snap-fitted with the second part. The part of the outer slider 4 extending into the lower outer cover 2 and the second part form a rigid whole, so that when a force is applied to the outer slider 4 along the length direction of the lower outer cover 2, the force position formed between the outer slider 4 and the middle frame 1 is on the plane where the slider is located, so as to avoid the force point being generated on the first part, causing the width adjustment plate 3 to tilt and self-lock due to the torque and deformation. Therefore, in the fully assembled state, the force position is moved down to the bottom of the width adjustment plate 3 and on the plane where the outer slider 4 is located. In this way, when the outer slider 4 is moved and adjusted, the force directly pushes the width adjustment plate 3 to move, thereby avoiding the self-locking phenomenon caused by the torque and deformation.

[0057] In this embodiment, the second portion of the width adjustment plate 3 at least partially extends out of the middle frame 1 and is built into the lower outer cover 2. The second portion generates a force position with the inner wall of the middle frame 1. The outer sliding block 4 extends into the lower outer cover 2 to form a direct contact with the second portion. When a force is applied to the outer sliding block 4, the force indirectly pushes the second portion to slide back and forth in the middle frame 1.

[0058] Specifically, the first part is a vertical plate 30, the vertical plate 30 is in an upright state, the outer slider 4 also includes a bottom slider 31 formed at the bottom of the vertical plate 30, the bottom slider 31 is slidably adapted to the bottom wall of the middle frame 1, the second part is a connecting buckle 32 formed on the bottom slider 31, the connecting buckle 32 passes through the middle frame 1 and is slidably connected to the middle frame 1, and the plane where the connecting buckle 32 is located is perpendicular to the plane where the vertical plate 30 is located. This allows the force to be placed at the most appropriate position, which can also achieve the most labor-saving effect.

[0059] The lower portion of the middle frame 1 is provided with a first guide groove 10 along the length direction, and the connecting buckle 32 passes through the first guide groove 10 and slides in the first guide groove 10 .

[0060] The outer slider 4 includes a finger-picking platform 40, a flying plate 41 and a connecting hook 42. The outer slider 4 is an integrally formed structure. The connecting hook 42 is located on the flying plate 41. The connecting hook 42 is located outside the upper outer cover, and the connecting hook 42 is hooked with the buckle hole 320 on the connecting buckle 32. The lower portion of the lower outer cover 2 is provided with a second guide groove 20 along its length direction. The outer slider 4 penetrates into the second guide groove 20 and slides in the second guide groove 20. The width adjustment plate 3 can rotate, and the connecting buckle 32 is disengaged from the connecting hook 42 or the connecting hook 42 is hooked to the connecting buckle 32 through two opposite rotation directions. When adjusting the width, the width adjustment plate 3 is rotated in one direction to disengage the connecting buckle 32 from the connecting hook 42 and release the lock. After the preset is completed, the width adjustment plate 3 is rotated in the opposite direction to lock the outer slider 4.

[0061] In this embodiment, limiting arms 43 are provided on both sides of the connecting hook 42 on the flying plate 41. When the connecting hook 42 and the buckle hole 320 are hooked, the inner side of the limiting arm 43 presses against the outer side of the connecting buckle 32, so that the flying plate 41 and the connecting hook 42 form a rigid whole. When external force is applied to the outer sliding block 4, the force point generated between the outer sliding block 4 and the width adjustment plate 3 is on the plane where the connecting buckle 32 is located or the plane where the outer sliding block 4 is located, which not only ensures the stability of the connection between the outer sliding block 4 and the width adjustment plate 3, but also better avoids the self-locking phenomenon.

[0062] Example 4

[0063] A friction-proof self-locking printer consumables width adjustment mechanism, comprising:

[0064] The middle frame 1 can be used to accommodate consumables. When it is necessary to adapt to the specifications of consumables that are smaller than the standard length, corresponding width adjustment adaptation is required.

[0065] The lower outer cover 2 is adapted to fit inside the middle frame 1 .

[0066] The adjustment plate 3 can be assembled inside the middle frame 1, and the adjustment plate 3 can be moved back and forth to adapt to the use of consumables smaller than the standard specifications.

[0067] The adjustment plate 3 includes a first part and a second part, the first part is in an upright state, and the second part is positioned and matched with the middle frame 1, so that the adjustment plate 3 can slide back and forth in the middle frame 1 along its length direction, so as to adapt to consumables of different width specifications through the position adjustment structure of the adjustment plate 3, the second part at least partially extends out of the middle frame 1, and the projections of the first part and the second part on the vertical plane where the moving direction line of the adjustment plate 3 is located are arranged perpendicular to each other, and the second part is located at the lower part of the first part. The existing method is to apply a force to the first part. This method not only produces a torque effect on the width adjustment plate 3 to cause the width adjustment plate 3 to rotate, but also may cause the first part to deform, and finally causes the width adjustment plate 3 to self-lock in the middle frame 1 during the movement, which is not convenient for adjustment.

[0068] The outer slider 4 is at least partially inserted into the lower outer cover 2 and snap-fitted with the second part. The part of the outer slider 4 extending into the lower outer cover 2 and the second part form a rigid whole, so that when a force is applied to the outer slider 4 along the length direction of the lower outer cover 2, the force position formed between the outer slider 4 and the middle frame 1 is on the plane where the slider is located, so as to avoid the force point being generated on the first part, causing the width adjustment plate 3 to tilt and self-lock due to the torque and deformation. Therefore, in the fully assembled state, the force position is moved down to the bottom of the width adjustment plate 3 and on the plane where the outer slider 4 is located. In this way, when the outer slider 4 is moved and adjusted, the force directly pushes the width adjustment plate 3 to move, thereby avoiding the self-locking phenomenon caused by the torque and deformation.

[0069] In this embodiment, the second portion of the width adjustment plate 3 at least partially extends out of the middle frame 1 and is built into the lower outer cover 2. The second portion generates a force position with the inner wall of the middle frame 1. The outer sliding block 4 extends into the lower outer cover 2 to form a direct contact with the second portion. When a force is applied to the outer sliding block 4, the force indirectly pushes the second portion to slide back and forth in the middle frame 1.

[0070] Specifically, the first part is a vertical plate 30, the vertical plate 30 is in an upright state, the outer slider 4 also includes a bottom slider 31 formed at the bottom of the vertical plate 30, the bottom slider 31 is slidably adapted to the bottom wall of the middle frame 1, the second part is a connecting buckle 32 formed on the bottom slider 31, the connecting buckle 32 passes through the middle frame 1 and is slidably connected to the middle frame 1, and the plane where the connecting buckle 32 is located is perpendicular to the plane where the vertical plate 30 is located. This allows the force to be placed at the most appropriate position, which can also achieve the most labor-saving effect.

[0071] The lower portion of the middle frame 1 is provided with a first guide groove 10 along the length direction, and the connecting buckle 32 passes through the first guide groove 10 and slides in the first guide groove 10 .

[0072] The outer slider 4 includes a finger-picking platform 40, a flying plate 41 and a connecting hook 42. The outer slider 4 is an integrally formed structure. The connecting hook 42 is located on the flying plate 41. The connecting hook 42 is located outside the upper outer cover, and the connecting hook 42 is hooked with the buckle hole 320 on the connecting buckle 32. The lower portion of the lower outer cover 2 is provided with a second guide groove 20 along its length direction. The outer slider 4 penetrates into the second guide groove 20 and slides in the second guide groove 20. The width adjustment plate 3 can rotate, and the connecting buckle 32 is disengaged from the connecting hook 42 or the connecting hook 42 is hooked to the connecting buckle 32 through two opposite rotation directions. When adjusting the width, the width adjustment plate 3 is rotated in one direction to disengage the connecting buckle 32 from the connecting hook 42 and release the lock. After the preset is completed, the width adjustment plate 3 is rotated in the opposite direction to lock the outer slider 4.

[0073] In this embodiment, limiting arms 43 are provided on both sides of the connecting hook 42 on the flying plate 41. When the connecting hook 42 and the buckle hole 320 are hooked, the inner side of the limiting arm 43 presses against the outer side of the connecting buckle 32, so that the flying plate 41 and the connecting hook 42 form a rigid whole. When external force is applied to the outer sliding block 4, the force point generated between the outer sliding block 4 and the width adjustment plate 3 is on the plane where the connecting buckle 32 is located or the plane where the outer sliding block 4 is located, which not only ensures the stability of the connection between the outer sliding block 4 and the width adjustment plate 3, but also better avoids the self-locking phenomenon.

[0074] In this embodiment, the positions of the first guide groove 10 and the second guide groove 20 are staggered, so that the first guide groove 10 and the second guide groove 20 are not on the same height plane, which can prevent foreign objects and insects from accidentally entering, and protect the working safety and clean working internal space of the printer.

[0075] 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 friction-proof self-locking printer consumables width adjustment mechanism, characterized in that: include: Middle frame; A lower outer cover, wherein the middle frame is adaptively assembled in the lower outer cover; A width adjustment plate is assembled inside the middle frame, and the width adjustment plate includes a first part and a second part, the first part is in an upright state, and the second part is positioned and matched with the middle frame, so that the width adjustment plate can slide back and forth in the middle frame along the length direction thereof, so as to adapt to consumables of different width specifications by adjusting the position of the width adjustment plate, the second part at least partially extends out of the middle frame, and the projections of the first part and the second part on the vertical plane where the moving direction line of the width adjustment plate is located are arranged perpendicular to each other, and the second part is located below the first part; The outer slider is at least partially inserted into the lower outer cover and snap-fitted with the second part. The part of the outer slider extending into the lower outer cover and the second part form a rigid whole, so that when a force is applied to the outer slider along the length direction of the lower outer cover, a force position formed between the outer slider and the middle frame is on the plane where the slider is located, so as to prevent the force point from being generated on the first part, causing the width adjustment plate to tilt and self-lock due to the torque and deformation.

2. The anti-friction self-locking printer consumables width adjustment mechanism according to claim 1, characterized in that: The second part of the width adjustment plate at least partially extends out of the middle frame and is built into the lower outer cover. The second part generates a force position with the inner wall of the middle frame. The outer sliding block extends into the lower outer cover to form direct contact with the second part. When a force is applied to the outer sliding block, the force indirectly pushes the second part to slide back and forth in the middle frame.

3. The anti-friction self-locking printer consumables width adjustment mechanism according to claim 1, characterized in that: The first part is a vertical plate, and the vertical plate is in an upright state. The width adjustment plate also includes a bottom sliding block formed at the bottom of the vertical plate, and the bottom sliding block is slidably adapted to the bottom wall of the middle frame. The second part is a connecting buckle formed on the bottom sliding block, and the connecting buckle passes through the middle frame and is slidably connected to the middle frame. The plane where the connecting buckle is located is perpendicular to the plane where the vertical plate is located.

4. The anti-friction self-locking printer consumables width adjustment mechanism according to claim 3, characterized in that: The outer slider includes a finger pick platform, a flying plate and a connecting hook. The outer slider is an integrally formed structure. The connecting hook is located on the flying plate. The connecting hook is located outside the lower outer cover, and the connecting hook is hooked with a buckle hole on the connecting buckle.

5. The anti-friction self-locking printer consumables width adjustment mechanism according to claim 4, characterized in that: The flying plate is provided with limiting arms on both sides of the connecting hook. When the connecting hook and the buckle hole are hooked, the inner side of the limiting arm presses against the outer side of the connecting buckle, so that the flying plate and the connecting hook form a rigid whole. When an external force is applied to the outer slider, the force point generated between the outer slider and the width adjustment plate is on the plane where the connecting buckle is located or the plane where the outer slider is located.

6. The anti-friction self-locking printer consumables width adjustment mechanism according to claim 5, characterized in that: The lower part of the middle frame is provided with a first guide groove along the length direction, and the connecting buckle passes through the first guide groove and slides in the first guide groove.

7. The anti-friction self-locking printer consumables width adjustment mechanism according to claim 6, characterized in that: The lower portion of the lower outer cover is provided with a second guide groove along its length direction, and the outer sliding block penetrates into the second guide groove and slides in the second guide groove.

8. The anti-friction self-locking printer consumables width adjustment mechanism according to claim 7, characterized in that: The first guide groove and the second guide groove are located at staggered positions.

9. The anti-friction self-locking printer consumables width adjustment mechanism according to claim 8, characterized in that: The width adjustment plate can rotate, and the connecting buckle can be separated from the connecting hook or the connecting hook can be hooked to the connecting buckle through two opposite rotating directions.

10. A printer, comprising the anti-friction self-locking printer consumables width adjustment mechanism according to any one of claims 1 to 9.

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