CN113356714B

CN113356714B - Damping structure opens door

Info

Publication number: CN113356714B
Application number: CN202110719362.6A
Authority: CN
Inventors: 焦丕敬; 尤明强
Original assignee: Qingdao Wintec System Co ltd
Current assignee: Qingdao Wintec System Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2023-05-30
Anticipated expiration: 2041-06-28
Also published as: CN113356714A

Abstract

The invention provides a door opening damping structure, which comprises a machine body with a containing bin and a door body arranged on the machine body and used for opening and closing the containing bin, wherein a door shaft at the bottom end of the door body is rotationally connected to the side wall of the containing bin; the first boss arranged on the door body moves in the limit groove arranged on the side wall of the accommodating bin; the limiting groove is provided with a first inner wall, and the first inner wall and the first boss are oppositely arranged in the axial direction of the door shaft; the moving track of the first boss is divided into a first movable section and a second movable section; when the first boss is positioned on the first movable section, the first boss is in clearance fit with the first inner wall; when the first boss is located in the second movable section, the first boss is in interference fit with the first inner wall. According to the embodiment of the invention, the first boss on the door body is in interference fit with one part of the first inner wall in the limit groove on the machine body in the axial direction, so that friction force is generated, the speed of falling and opening the door body is reduced, impact is avoided when the door body is opened, impact noise is eliminated, collision damage of the door body is avoided, and the door body is simple in structure and easy to assemble.

Description

Damping structure opens door

Technical Field

The invention belongs to the technical field of printers, and particularly relates to a door opening damping structure of a printer cabin door.

Background

In supermarkets, restaurants and other business places, printers are often arranged to print consumption tickets for customers, and when paper rolls in the printers are used up, a cabin door needs to be opened to load new paper rolls. At present, a cabin door of the printer is generally opened downwards, and the cabin door can be kept open to the greatest extent under the action of gravity of the cabin door, so that a new paper roll is convenient to load into the cabin door.

However, the downward opening structure adopted by the existing printer cabin door has the following defects:

1. under the action of gravity, the cabin door can freely fall after being opened, the opening speed is too high, larger impact is caused on a base of the printer, the cabin door is easy to damage, and the later maintenance cost is increased;

2. the cabin door is easy to fall down to cause impact when being opened, so that the noise is high, and the user experience is reduced;

3. the cabin door is made of high-strength materials or is buffered in a speed reducing mode by the torsion spring, damage caused by impact is avoided, manufacturing cost of the cabin door is increased, and assembling difficulty is increased.

Disclosure of Invention

Aiming at the defects existing in the related art, the invention provides a door opening damping structure to solve the technical problems of easy impact damage, high noise, high cost and difficult installation existing in the opening of a cabin door of the conventional receipt printer.

The invention provides a door opening damping structure, which comprises a machine body with a containing bin and a door body arranged on the machine body and used for opening and closing the containing bin, wherein a door shaft at the bottom end of the door body is rotationally connected to the side wall of the containing bin;

when the door body is turned over, the first boss arranged on the door body moves in the limit groove arranged on the side wall of the accommodating bin, and the moving track of the first boss is an arc taking the door shaft as the center;

the limiting groove is provided with a first inner wall, and the first inner wall and the first boss are oppositely arranged in the axial direction of the door shaft;

the moving track of the first boss is divided into a first movable section and a second movable section;

when the first boss is positioned on the first movable section, the first boss is in clearance fit with the first inner wall; when the first boss is located in the second movable section, the first boss is in interference fit with the first inner wall.

According to the technical scheme, interference fit is carried out on the first boss and a part of the first inner wall, friction force is generated, the falling and opening speed of the door body is slowed down, and the impact generated by opening the door is avoided.

In some of these embodiments, the door body comprises:

a main body portion;

the base part is an elastic piece and is arranged at the bottom end of the main body part, and the first boss is positioned on the base part.

According to the technical scheme, the first boss can axially float through the elastic support part, the friction force between the first boss and the first inner wall is moderate when interference fit is kept through elasticity, and the door body can be sufficiently decelerated when falling down and cannot be clamped.

In some of these embodiments, the stand portion is an elastic plate and protrudes with respect to the main body portion or is provided with a movable space therebetween. The support portion of this technical scheme forms through the mode of seting up the activity interval, and processing manufacturing is convenient.

In some of these embodiments, the door spindle is located on the base portion. According to the technical scheme, the door shaft can axially move along with the support seat part, and is convenient to install on the machine body.

In some embodiments, the limiting groove has a second inner wall, and the second inner wall and the first boss are disposed opposite to each other in a radial direction of the door shaft and are in clearance fit. According to the technical scheme, the movement of the first boss can be guided in the radial direction through the second inner wall.

In some embodiments, a second boss is disposed on the second inner wall, the second boss is located on the moving track of the first boss, and when the second boss contacts the first boss, the door body turns to be slow down. According to the technical scheme, the opening of the door body is decelerated through the second boss, the interference fit part is prevented from being incapable of completely decelerating the door body, and collision can not occur when the door body is opened.

In some embodiments, the second boss is located at an engagement point of the first movable segment and the second movable segment. According to the technical scheme, the second boss decelerates the door body when the free falling of the door body is terminated, and the speed of the door body entering the second movable section is reduced to the greatest extent.

In some of these embodiments, both sides of the second boss smoothly transition with the second inner wall. According to the technical scheme, when the first boss is prevented from being contacted with the second boss through smooth transition, the first boss is prevented from being clamped by the second boss.

In some of these embodiments, the first boss is provided with rounded corners on both sides for contacting the second boss. According to the technical scheme, when the arc edge is prevented from contacting the second boss, the arc edge is blocked by the second boss.

In some of these embodiments, the arc of the first movable segment is greater than the arc of the second movable segment. The length that this technical scheme can guarantee the free fall guarantees that the door can open fast.

Based on the technical scheme, in the embodiment of the invention, the first boss on the door body is in interference fit with one part of the first inner wall in the limit groove on the machine body in the axial direction, so that friction force is generated, the falling and opening speed of the door body is reduced, the door body is prevented from being impacted when being opened, impact noise is eliminated, the door body is prevented from being damaged by collision, and the door body is simple in structure and easy to assemble; the first boss is clearance fit with a part of the first inner wall, so that the initial section of the door body which is opened can freely fall, the door body can be guaranteed to be opened quickly, and the technical problems that the door of the conventional receipt printer is easy to impact and damage, high in noise, high in cost and difficult to install are solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

FIG. 1 is a schematic view of a door opening damping structure according to the present invention;

FIG. 2 is a schematic view of the structure of the body in the door opening damping structure of the present invention;

FIG. 3 is a schematic view of a door body in the door opening damping structure of the present invention;

FIG. 4 is an enlarged view of a portion of a limiting slot in the door opening damping structure of the present invention;

FIG. 5 is a cross-sectional block diagram of the door opening damping structure of the present invention in a first active section;

FIG. 6 is a cross-sectional view of the door opening damping structure of the present invention with a first boss contacting a second boss;

FIG. 7 is a cross-sectional block diagram of the door opening damping structure of the present invention in a second active section;

in the figure:

1. a body;

2. a door body; 21. a main body portion; 22. a stand portion; 23. a door spindle; 24. a clearance gap;

3. a receiving bin;

41. a first boss; 42. a second boss;

5. a limit groove; 51. a first inner wall; 52. a second inner wall;

A. a first movable segment; B. a second movable segment.

Detailed Description

The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", or a third "may explicitly or implicitly include one or more such feature.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 7, in an exemplary embodiment of the door opening damping structure of the present invention, the door opening damping structure includes a body 1 and a door body 2, the body 1 has a receiving compartment 3, the door body 2 is mounted on the body 1, and a door shaft 23 at a bottom end of the door body 2 is rotatably coupled to a sidewall of the receiving compartment 3 so as to be capable of being turned over on the body 1, thereby achieving opening and closing of the receiving compartment 3.

The door body 2 is provided with a first boss 41, and the first boss 41 is positioned in a limit groove 5 arranged on the side wall of the accommodating bin 3. In the process of turning the door body 2 downwards from the closed state to the open state, the first boss 41 moves in the limit groove 5, and the moving track is an arc taking the door shaft 23 as the center of a circle.

As shown in fig. 4, one inner wall of the limit groove 5 is a first inner wall 51, and the first inner wall 51 is provided opposite to the first boss 41 in the axial direction of the door shaft 23. The moving track of the first boss 41 is divided into a first movable section A and a second movable section B, and when the first boss 41 is positioned in the first movable section A, the first boss 41 is in clearance fit with the first inner wall 51; when the first boss 41 is located at the second movable segment B, the first boss 41 is in interference fit with the first inner wall 51.

When the accommodating bin 3 is opened, the door body 2 is turned downwards, as shown in fig. 5, the first boss 41 moves in the first movable section a, and the door body 2 in the first movable section a is free to fall due to clearance fit between the first boss 41 and the first inner wall 51 in the first movable section a, so that the door body can be turned rapidly. The door body 2 continues to turn downwards, as shown in fig. 7, the first boss 41 enters the second movable section B from the first movable section a to move, and as the first boss 41 in the second movable section a is in interference fit with the first inner wall 51, the first boss 41 contacts with the first inner wall 51, and the generated friction force serves as resistance to reduce the moving speed of the first boss 41, so that the speed of turning down the door body 2 is reduced, and the door body 2 is turned over to a fully opened state at a slower speed.

In the above-mentioned exemplary embodiment, the damping structure opens door carries out interference fit through the first boss 41 on the door body 2 and a part of the first inner wall 51 on the spacing groove 5, produces frictional force as resistance, realizes the damping effect, reduces the speed that door body 2 upset falls, and the impact takes place when avoiding the door body 2 to open, prevents noise and the collision damage that consequently produces, simple structure, and the assembly is easy to can make door body 2 free fall when first boss 41 and first inner wall 51 clearance fit, guarantee the speed that door body 2 opened, improve the efficiency of opening the door.

In some embodiments, as shown in fig. 3, the door body 2 includes a main body portion 21 and a stand portion 22. The base portion 22 is an elastic member, and is mounted at the bottom end of the main body portion 21, and the first boss 41 is located on the base portion 22. The elasticity of the mount portion 22 enables axial movement of the mount portion relative to the door shaft 23, and the first boss 41 can move therewith. When the first boss 41 is in interference fit with the first inner wall 51, the elastic support portion 22 can float, so that the first boss 41 is kept in close contact with the first inner wall 51, enough friction force is generated as resistance, the door body 2 is decelerated to a low enough speed before being completely opened, and the door body 2 is guaranteed not to collide with impact. In addition, the first boss 41 can move along with the support part 22, and is convenient to be arranged in the limit groove 5, so that the assembly of the door body 2 and the machine body 1 is easier.

In some embodiments, the stand portion 22 is an elastic plate, and may be disposed in a protruding manner with respect to the main body portion 21, or may be disposed on one side of the main body portion 21, and a movable space 24 is provided between the stand portion and the main body portion 21. Protruding from the main body 21 or spaced therefrom, the support 22 can provide a movable space to ensure the floating of the first boss 41.

In some embodiments, the door shafts 23 are located on the support portions 22, so that the door shafts 23 can also axially move along with the support portions, and the distance between the door shafts 23 on two sides is reduced, so that the door can be more easily sent into the accommodating bin 5, and the door body 2 is convenient to install.

In some embodiments, as shown in fig. 4, one inner wall of the limiting groove 5 is taken as a second inner wall 52, and the second inner wall 52 and the first boss 41 are oppositely arranged in the radial direction of the door shaft 23 and are in clearance fit.

The second inner wall 52 is provided with a second boss 42, and the second boss 42 is located on the moving track of the first boss 41, so that the first boss 41 can contact the second boss 42 in the process of opening the door body 2. As shown in fig. 6, in the process of opening the door body 2, the first boss 41 contacts the second boss 42, so that friction force is generated as resistance, the speed of the door body 2 turning over and falling is reduced, and a damping effect is achieved. The second boss 42 directly blocks the movement of the first boss 41 on the movement locus of the first boss 41, and can quickly and greatly reduce the falling speed of the door 2. The second boss 42 and the first inner wall 51 can generate friction action on the first boss 41, so that the falling speed of the door body 2 is reduced, and the door body 2 is ensured not to be impacted due to too high speed when being opened.

In some embodiments, as shown in fig. 6, the second boss 42 is located at the engagement point between the first movable section a and the second movable section B, so that when the first movable section a completes free falling, the first boss 41 contacts the second boss 42 to decelerate, then enters the second movable section B and further decelerates through the interference fit of the first inner wall 51, and finally reaches the end of the opening stroke of the door body 2 at a low speed. The second boss 42 does not decelerate the door body 2 when the door body 2 freely falls, and ensures the moving speed of the initial opening section of the door body 2, so that the time consumed for completely opening the door body 2 is less under the condition of avoiding the impact of opening the door body 2, and the door opening efficiency is improved.

In some embodiments, both sides of the second boss 42 smoothly transition with the second inner wall 52. When the edge of the second boss 42 is smooth, the first boss 41 can be prevented from being clamped when the first boss 41 is contacted with the second boss 42, and the first boss 41 can be opened smoothly through the second boss 42, so that the door body 2 is ensured.

In some embodiments, the first boss 41 is provided on both sides with rounded corners for contacting the second boss 42. The edge of the first boss 41 is smooth, so that when the first boss 41 contacts the second boss 42, the first boss 41 is blocked and cannot pass through the second boss 42, and the door body 2 is ensured to be opened smoothly.

In some embodiments, as shown in fig. 4, the radian of the first movable section a is greater than that of the second movable section B, so that the door body 2 is ensured to have enough space to fall freely, the time consumption for completely opening the door body 2 is reduced, and the door opening efficiency is improved.

By way of illustration of various embodiments of the door opening damping structure of the present invention, it can be seen that the door opening damping structure embodiments of the present invention have at least one or more of the following advantages:

1. the falling speed of the door body is reduced through friction force generated by interference fit, the door body is prevented from being impacted, noise is not generated, and the door body is prevented from being damaged by collision.

2. The initial section of opening of the door body can freely fall, so that the time consumed by completely opening the door body is less under the condition that the damping effect is ensured and the door body is prevented from being impacted.

3. The second boss can reduce the falling speed of the door body fast, guarantees that the door body is opened and can not take place the impact.

Finally, it should be noted that: in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.

Claims

1. The door opening damping structure comprises a machine body with a containing bin and a door body arranged on the machine body and used for opening and closing the containing bin, wherein a door shaft at the bottom end of the door body is rotationally connected to the side wall of the containing bin so as to realize that the door body is turned downwards to open the containing bin;

the door body is characterized in that when the door body is turned over, a first boss arranged on the door body moves in a limit groove arranged on the side wall of the accommodating bin, and the moving track of the first boss is an arc taking a door shaft as a center;

when the first boss is positioned on the first movable section, the first boss is in clearance fit with the first inner wall; when the first boss is located on the second movable section, the first boss is in interference fit with the first inner wall.

2. The door opening damping structure according to claim 1, wherein the door body includes:

a main body portion;

the support part is an elastic piece and is arranged at the bottom end of the main body part, and the first boss is positioned on the support part.

3. The door opening damping structure according to claim 2, wherein the support portion is an elastic plate and protrudes with respect to the main body portion or is provided with a movable space therebetween.

4. A door opening damping structure according to claim 3, wherein the door shaft is located on the seat portion.

5. The door opening damping structure according to claim 1, wherein the limit groove has a second inner wall which is disposed opposite to the first boss in a radial direction of the door shaft and is clearance-fitted.

6. The door opening damping structure according to claim 5, wherein a second boss is provided on the second inner wall, the second boss is located on the moving track of the first boss, and when the second boss contacts the first boss, the door body is turned over to slow down.

7. The door opening damping structure of claim 6, wherein the second boss is located at an engagement point of the first movable segment and the second movable segment.

8. The door opening damping structure according to claim 6, wherein both sides of the second boss smoothly transition with the second inner wall.

9. The door opening damping structure according to claim 6, wherein both sides of the first boss are provided with arc chamfers for contacting the second boss.

10. The door opening damping structure of claim 1, wherein the arc of the first movable segment is greater than the arc of the second movable segment.