CN212604118U - Lid buffer structure and printer - Google Patents

Abstract

The utility model relates to a cover body buffer structure, which comprises a cover body and a main body, wherein the cover body is hinged with the main body through at least one rotating shaft, at least one buffer piece which is integrally injection-molded with the main body is arranged on the main body, the buffer piece comprises a first arm and a second arm which are arranged at relative intervals and a connecting part which is connected with the lower ends of the first arm and the second arm, the upper end of the first arm is connected on the main body, the second arm is arranged in a suspended manner, and a stopping part is arranged on the surface of the second arm, which is far away from the first arm; the cover body is provided with a guide part which is arranged opposite to the buffer part, the guide part is provided with a guide surface which is matched with the abutting part, and the guide surface and the abutting part are in interference fit arrangement so as to solve the problems that the existing cover body buffer structure occupies the main body space and increases the complexity of assembly.

Description

Lid buffer structure and printer

Technical Field

The utility model relates to a casing open and shut structure field specifically is a buffer structure and printer uncap.

Background

At present, the electric appliance often uses a structure that an upper cover and a main body are hinged around a rotating shaft for opening and closing. In order to increase the stability of the upper cover during opening and closing, a buffer structure is usually added between the upper cover and the main body. The uncapping buffering structure in the prior art mainly utilizes the spring or the damping gear to buffer, therefore needs to increase the structure of fixed spring or damping gear on main part or upper cover, and these structures occupy the main part space to because the increase of assembly parts has increased assembly man-hour, has caused the increase of cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lid buffer structure to solve current lid buffer structure occupy the main part space, and increase the more complicated problem of assembly.

The specific scheme is as follows:

a cover body buffer structure comprises a cover body and a main body, wherein the cover body is hinged to the main body through at least one rotating shaft, at least one buffer piece which is integrally injection-molded with the main body is arranged on the main body, the buffer piece comprises a first arm, a second arm and a connecting part, the first arm and the second arm are arranged at intervals oppositely, the connecting part is connected with the lower ends of the first arm and the second arm, the upper end of the first arm is connected to the main body, the second arm is arranged in a suspended mode, and a butting part is arranged on the surface, away from the first arm, of the second arm; the cover body is provided with a guide part which is arranged opposite to the buffer piece, the guide part is provided with a guide surface which is matched with the abutting part, and the guide surface and the abutting part are in interference fit.

Preferably, the guide surface is provided with a first guide section, a second guide section, a third guide section and a fourth guide section which are sequentially arranged along the circumferential direction of the rotating shaft and the covering direction, and the interference magnitude of the first to fourth guide sections is different from that of the resisting part.

Preferably, when the cover body is completely covered on the main body, the abutting part of the second arm is opposite to the first guide section, and the first guide section does not interfere with the abutting part.

Preferably, when the cover body is opened, the first guide section is in interference contact with the abutting portion to have an interference, and the interference is gradually increased in the opening process of the cover body.

Preferably, when the cover body is opened, the second guide section is in interference contact with the abutting portion to form interference, the interference between the two ends of the second guide section and the abutting portion is greater than the interference between the middle of the second guide section and the abutting portion, and when the abutting portion is in interference contact with the middle of the second guide section, the cover body maintains the opening and closing angle of the cover body.

Preferably, the third guide section is an arc section taking the rotating shaft as a circle center.

Preferably, when the cover body is opened, the fourth guide section is in interference contact with the abutting portion to have an interference, and the interference is gradually reduced in the opening process of the cover body.

Preferably, the interference between the end of the fourth guiding section and the abutting portion is zero, and at this time, the end of the fourth guiding section abuts against the abutting portion to maintain the opening and closing angle of the cover body.

The utility model also provides a printer, include the shell and install the printing element in the shell, it is as above arbitrary to install on the casing lid buffer structure.

The utility model provides a buffer structure uncaps compares with prior art and has following advantage: the utility model provides a buffer of buffer structure uncaps and integrative injection moulding of main part need not additionally to increase the part, greatly increased the efficiency of assembly.

Drawings

Fig. 1 shows a perspective view of an open cover buffer structure.

Fig. 2 shows a schematic sectional view of the door buffering structure.

Fig. 3 shows an enlarged view at a in fig. 2.

Fig. 4 shows a schematic view of the guide on the cover.

Fig. 5 is a schematic view showing a positional relationship of the guide portion and the buffer when the cover is completely covered.

Fig. 6 is a schematic view showing the positional relationship of the guide and the damper during opening of the cover from the fully closed state to the first opening angle.

Fig. 7 is a schematic view showing a positional relationship of the guide and the damper when the cover is opened to the first opening angle.

Fig. 8 is a schematic view showing a positional relationship of the guide and the damper during opening of the cover from the first opening angle to the second opening angle.

Fig. 9 is a schematic view showing a positional relationship of the guide and the damper when the cover is opened to the second opening angle.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

As shown in fig. 1 to 3, the present embodiment provides a cover opening buffer structure, which includes a cover body 1 and a main body 2, wherein the cover body 1 is hinged to the main body 2 through a hinge 10. In the present embodiment, the cover body 1 and the main body 2 are respectively an upper cover and a main body of a printer as an example, but the present invention is not limited thereto, and the cover opening buffer structure can be applied to other apparatuses.

The main body 2 is provided with at least one buffer member 21 integrally injection-molded with the main body 2, the buffer member 21 is a substantially U-shaped structure, and includes a first arm 211, a second arm 212 and a connecting portion 213 connecting lower ends of the first arm 211 and the second arm 212, the first arm 211 is connected to the main body 2 at an upper end thereof, the second arm 212 is suspended, and a surface of the second arm 212 facing away from the first arm 211 is provided with a stopping portion 213.

The cover body 1 is provided with a guide part 11 arranged opposite to the buffer member 21, the guide part 11 is provided with a guide surface 110 arranged in cooperation with the abutting part 213, the guide surface 110 and the abutting part 213 are arranged in interference fit, so that in the opening and closing process of the cover body 1, the guide part 11 on the cover body 1 can extrude the second arm 212 of the buffer member 21, and the gap between the first arm 211 and the second arm 212 provides a space for deformation of the second arm 212, so that resistance for blocking the rotation of the guide part 11 is generated by the deformation of the second arm 212, and the function of buffering the opening and closing of the cover body is achieved. Because this bolster 21 and main part 2 integrated injection moulding need not additionally to increase the part, greatly increased the efficiency of assembly.

In this embodiment, referring to fig. 3 to 9, the guide surface 110 has a first guide section 1101, a second guide section 1102, a third guide section 1103 and a fourth guide section 1104 arranged in sequence along the circumferential direction of the rotating shaft 10. In this embodiment, the opening direction of the cover body 1 is clockwise, and the closing direction is counterclockwise, wherein the first guide section 1101, the second guide section 1102, the third guide section 1103 and the fourth guide section 1104 are sequentially connected along the counterclockwise direction.

The first guiding section 1101 has a first interference amount which is in interference fit with the abutting portion 213, the second guiding section 1102 has a second interference amount which is in interference fit with the abutting portion 213, the third guiding section 1103 has a third interference amount which is in interference fit with the abutting portion 213, and the fourth guiding section 1104 has a fourth interference amount which is in interference fit with the abutting portion 213.

Referring to fig. 5 to 9, in the process of completely closing the cover 1 to completely opening the cover, the first to fourth guide sections and the abutting portion 213 have different interference, so that the buffer member 21 generates different resistance to the cover 1 during opening, thereby achieving a buffering effect, and the cover can be at different opening and closing angles during opening. Similarly, in the process of completely opening the cover body 1 to completely closing the cover body, the buffer member 21 generates different resistances to the cover body 1, so as to achieve the buffering effect, and the cover body can be in different opening and closing angles in the closing process.

Specifically, referring to fig. 5, when the cover 1 is completely closed, the abutting portion 213 of the second arm 212 faces the first guide section 1101, and the first guide section 1101 does not contact the abutting portion 213, so that the buffer member 21 has no buffering effect on the cover 1.

Referring to fig. 6, during the process of opening the cover body 1 from the fully closed state to the first opening/closing angle, the first guide section 1101 comes into interference contact with the interference portion 213 to have a first interference amount, which gradually increases during the clockwise opening of the cover body 1, so that the resistance of the buffer member 21 to the cover body 1 also gradually increases, and the first interference amount reaches a maximum value at the connection of the first guide section 1101 and the second guide section 1102.

Referring to fig. 7, during the continuous opening process of the cover body 1, the interference part 213 passes through the first guide section 1101 and enters the second guide section 1102, the second guide section 1102 is in interference contact with the interference part 213 to have a second interference, and the interference between the two ends of the second guide section 1102 and the interference part 213 is greater than the interference between the middle of the second guide section 1102 and the interference part 213, so that the cover body 1 can be maintained in the middle of the second guide section 1102 to have the first opening and closing angle.

Referring to fig. 8, during the process of opening the cover 1, the stopping portion 213 passes the second guiding section 1102 and enters the third guiding section 1103, and the third guiding section 1103 is in interference contact with the stopping portion 213 to have a third interference.

Referring to fig. 9, during the continuous opening of the cover 1, the abutting portion 213 passes through the third guiding section 1103 and enters the fourth guiding section 1104, the fourth guiding section 1104 is in interference contact with the abutting portion 213 to have a fourth interference, and the fourth interference gradually decreases during the clockwise opening of the cover 1, so that the resistance of the buffer 21 to the cover 1 also gradually decreases, and reaches a zero value at the end of the fourth guiding section 1104, at which time the end of the fourth guiding section 1104 abuts against the abutting portion 213, so that the cover 1 has a second opening and closing angle, and the cover 1 is completely opened.

The process from the fully opened and closed state to the fully closed state of the cover body 1 is opposite to the opening process, and therefore, the detailed description is omitted.

The guide surface 110 in this embodiment has a plurality of guide sections with different interference, so that the buffer member can generate different resistances during the opening or closing process of the cover body 1, so that the cover body 1 can have better opening or closing hand feeling, and the cover body can be maintained at half-open and full-open angles, thereby facilitating the subsequent assembly operation of components.

Referring to fig. 3 to 9, in the present embodiment, the stopping portion 213 is an arc-shaped convex surface located on a surface of the second arm 212 away from the first arm 211, and the arc-shaped convex surface as the stopping portion 213 can generate line contact with the guide surface 110, so as to generate a large reverse force to the guide surface 110, but does not cause too much resistance, thereby having a good buffering effect.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (9)

1. The utility model provides a lid buffer structure, includes lid and main part, on the lid articulated and the main part through an at least pivot, its characterized in that: the main body is provided with at least one buffer part which is integrally injection-molded with the main body, the buffer part comprises a first arm, a second arm and a connecting part, the first arm and the second arm are arranged at intervals oppositely, the connecting part is connected with the lower ends of the first arm and the second arm, the upper end of the first arm is connected to the main body, the second arm is arranged in a suspended manner, and a butting part is arranged on the surface of the second arm, which is far away from the first arm; the cover body is provided with a guide part which is arranged opposite to the buffer piece, the guide part is provided with a guide surface which is matched with the abutting part, and the guide surface and the abutting part are in interference fit.

2. The cover cushioning structure of claim 1, wherein: the guide surface is provided with a first guide section, a second guide section, a third guide section and a fourth guide section which are sequentially arranged along the circumferential direction of the rotating shaft and along the covering direction, and the interference magnitude of the first guide section, the second guide section, the third guide section and the fourth guide section is different from that of the resisting part.

3. The cover cushion structure of claim 2, wherein: when the cover body is completely covered on the main body, the abutting part of the second arm is opposite to the first guide section, and the interference between the first guide section and the abutting part does not occur.

4. The cover cushion structure according to claim 2 or 3, wherein: when the cover body is opened, the first guide section is in interference contact with the abutting part to form interference, and the interference is gradually increased in the opening process of the cover body.

5. The cover cushion structure of claim 2, wherein: when the cover body is opened, the second guide section is in interference contact with the abutting part and has interference magnitude, the interference magnitude of the two ends of the second guide section and the abutting part is larger than that of the middle part of the second guide section and the abutting part, and when the abutting part is in interference contact with the middle part of the second guide section, the cover body maintains the opening and closing angle of the cover body.

6. The cover cushion structure of claim 2, wherein: the third guide section is an arc section taking the rotating shaft as a circle center.

7. The cover cushion structure of claim 2, wherein: when the cover body is opened, the fourth guide section is in interference contact with the resisting part to form interference, and the interference is gradually reduced in the opening process of the cover body.

8. The cover cushioning structure of claim 7, wherein: the interference magnitude between the tail end of the fourth guide section and the abutting part is zero, and at the moment, the tail end of the fourth guide section abuts against the abutting part to enable the cover body to maintain the opening and closing angle of the cover body.

9. A printer comprising a housing and a printing assembly mounted in the housing, characterized in that: a cover cushioning structure as claimed in any one of claims 1 to 8 is mounted on the housing.

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