Printer case and 3D printer
By introducing a hovering structure into the chassis of a 3D printer, and utilizing adjustable damping hinges and elastic components, the printer door can be hovered at any position, solving the problem of the printer door's inflexibility and improving ease of use and product reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN NOVA ROBOTICS CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-28
AI Technical Summary
In the current 3D printer, the printer door cannot be flexibly adjusted to adjust its opening state when it is opened, which causes inconvenience to use.
A printer chassis with a hovering structure was designed. The adjustable damping pivot and elastic element in the hovering structure enable the chassis cover to be hovered at any position. The elastic force and damping force cancel each other out, and the magnitude of the damping force can be adjusted to control the stopping position of the chassis cover.
This technology allows the printer door to be hovered at any position, improving the flexibility and convenience of use, reducing production costs, and enhancing the reliability and stability of the product.
Smart Images

Figure CN224170489U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printer technology, and in particular to a printer chassis and a 3D printer. Background Technology
[0002] Currently, when a user opens the printer door, the door usually opens automatically to its maximum opening degree. This prevents users from flexibly adjusting the opening state of the printer door according to their specific needs, causing inconvenience in actual operation. Utility Model Content
[0003] The main purpose of this invention is to provide a printer chassis that allows for flexible opening of the printer door.
[0004] To achieve the above objectives, this utility model proposes a printer chassis, comprising:
[0005] The box has a side opening;
[0006] A lid is provided at the opening;
[0007] A hovering structure connects the housing and the housing cover. The hovering structure includes: a connecting seat disposed on the housing; a swing arm disposed on the housing cover; an adjustable damping shaft, through which the connecting seat and the swing arm are rotatably connected; and an elastic element that elastically connects the connecting seat and the swing arm.
[0008] In one embodiment, the adjustable damping shaft includes:
[0009] The shaft has one end inserted through the end of the connecting seat and the end of the swing rod;
[0010] Fasteners are screwed to the shaft and cooperate to clamp the connecting seat and the rocker arm.
[0011] In one embodiment, the connecting seat is provided with a strip-shaped hole, the shaft is adapted to the strip-shaped hole, and the rocker arm is rotatably connected to the shaft.
[0012] In one embodiment, the adjustable damping shaft further includes a bushing, which is sleeved on the shaft body. The connecting seat and the rocker arm are located at both ends of the bushing. The bushing and the shaft body cooperate to clamp the connecting seat, and the fastener cooperates with the bushing to clamp the rocker arm.
[0013] In one embodiment, the elastic element is configured as a torsion spring, which is sleeved on the bushing, with one end of the torsion spring connected to the connecting seat and the other end connected to the rocker arm.
[0014] In one embodiment, the swing arm is C-shaped.
[0015] In one embodiment, a notch is provided at the top of the opening of the box body, and the notch is disposed opposite to the swing rod.
[0016] This utility model also proposes a 3D printer, including the printer chassis described above.
[0017] In the technical solution of this utility model, the elastic element in the suspension structure provides elastic force to the swing arm and the lid, making the lid tend to open. In addition, by adjusting the adjustable damping shaft, the elastic force of the elastic element can be counteracted. During the opening process of the lid, the elastic element gradually recovers its deformation and the elastic force gradually decreases. When the elastic force and the damping force are equal, the elastic force and the damping force cancel each other out, and the lid stops. By adjusting the damping force of the adjustable damping shaft, the stopping position of the lid can be adjusted, thereby realizing the suspension of the lid at any position and improving the flexibility of use. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of the printer chassis provided by this utility model;
[0020] Figure 2 A schematic diagram of the suspension structure in the printer chassis provided by this utility model;
[0021] Figure 3 This is a schematic diagram of the connector in the printer chassis provided by this utility model;
[0022] Figure 4 A schematic diagram of the adjustable damping shaft in the printer chassis provided by this utility model.
[0023] Explanation of icon numbers:
[0024] 100. Housing; 200. Housing cover; 300. Suspension structure; 310. Connecting seat; 311. Strip hole; 320. Swing rod; 330. Adjustable damping shaft; 331. Shaft; 332. Fastener; 333. Bushing; 340. Elastic element.
[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0029] To achieve arbitrary hovering of the printer door, this technical solution proposes a printer chassis, including: a chassis 100 with a side opening; a cover 200 located at the opening; and a hovering structure 300 connecting the chassis 100 and the cover 200. The hovering structure 300 includes: a connecting seat 310 located on the chassis 100; a swing arm 320 located on the cover 200; an adjustable damping shaft 330, through which the connecting seat 310 and the swing arm 320 are rotatably connected; and an elastic element 340, which elastically connects the connecting seat 310 and the swing arm 320.
[0030] In the technical solution of this utility model, the elastic element 340 in the suspension structure 300 provides elastic force to the swing arm 320 and the box cover 200, so that the box cover 200 has a tendency to open. In addition, by adjusting the adjustable damping shaft 330, the elastic force of the elastic element 340 can be counteracted. During the opening process of the box cover 200, the elastic element 340 gradually recovers its deformation and the elastic force gradually decreases. When the elastic force and the damping force are equal, the elastic force and the damping force cancel each other out, and the box cover 200 stops. By adjusting the damping force of the adjustable damping shaft 330, the stopping position of the box cover 200 can be adjusted, thereby realizing the suspension of the box cover 200 at any position and improving the flexibility of use.
[0031] Specifically, such as Figures 1 to 4 The printer chassis mainly includes a housing 100 and a cover 200. The housing 100 has an opening on its side, and the cover 200 covers this opening to protect the internal printing mechanism and consumable components. The housing 100 and the cover 200 are connected by a suspension structure 300 to allow the cover 200 to open and close. The suspension structure 300 allows the cover 200 to be suspended at any position during the opening process. In this design, the suspension structure 300 includes a connecting seat 310, which is mounted on the housing 100 above the opening. A swing arm 320 is provided on the cover 200. The swing arm 320 can be a rod-shaped structure. The swing arm 320 is connected to the connecting seat... The connecting seats 310 and the swing arm 320 are rotatably connected via an adjustable damping shaft 330. The purpose of the swing arm 320 is to increase the opening degree of the lid 200. The adjustable damping shaft 330 can adopt a common specification available on the market, and its damping force is adjustable. In addition, the suspension structure 300 also includes an elastic element 340, which can be a spring or other device. The elastic element 340 is elastically connected between the connecting seat 310 and the swing arm 320. The function of the elastic element 340 is to provide an elastic force to the swing arm 320 and the lid 200. The elastic force causes the lid 200 to tend to move in the opening direction, providing a certain power for opening the lid 200. When the user opens the lid 200, in the initial state, the elastic force of the elastic element 340 will push the lid 200 to start opening. As the lid 200 gradually opens, the elastic element 340 gradually returns to its original shape, and correspondingly, the elastic force it generates gradually decreases. Simultaneously, by adjusting the damping force of the adjustable damping shaft 330, the damping force and elastic force of the lid 200 can be made equal at a predetermined position, thus canceling each other out. At this point, the lid 200 stops at the predetermined position, achieving suspension at any location. In this way, users can flexibly adjust the opening of the lid 200 according to actual operational needs, such as observing printing progress, adding printing material, or making partial adjustments to the printer's internal components, improving the flexibility and convenience of printer use.
[0032] like Figure 4As shown, in one embodiment of this utility model, the adjustable damping shaft 330 includes: a shaft 331, one end of which passes through the end of the connecting seat 310 and the end of the rocker arm 320; and a fastener 332, which is screwed to the shaft 331 and cooperates to clamp the connecting seat 310 and the rocker arm 320. In this solution, the shaft 331 can adopt a structure such as a bolt. One end of the bolt can pass through the end of the connecting seat 310 and the end of the rocker arm 320 in sequence. Then, the fastener 332 is threaded to the end of the bolt on that side, and clamps the connecting seat 310 and the rocker arm 320 with the shaft 331 through axial clamping force. At this time, the connecting seat 310 and the rocker arm 320 can generate friction with each other with the shaft 331 and the fastener 332 when rotating. This friction can serve as the damping force. When it is necessary to adjust the damping force, the operator only needs to rotate the fastener 332 to adjust the degree of clamping of the fastener 332 to adjust the magnitude of the damping force. The simple structure described above enables adjustable damping, reducing production costs while improving product reliability and stability.
[0033] like Figure 3 As shown, in one embodiment of this utility model, the connecting seat 310 is provided with a strip-shaped hole 311, the shaft 331 is adapted to the strip-shaped hole 311, and the rocker arm 320 is rotatably connected to the shaft 331. The strip-shaped hole 311 is elongated, and the shape and size of the shaft 331 are adapted to the strip-shaped hole 311, so that when the shaft 331 is inserted into the strip-shaped hole 311, the strip-shaped hole 311 can form a limit, preventing the shaft 331 from rotating relative to the connecting seat 310. This ensures the stability of the adjustable damping shaft 330 when the cover 200 is opened and closed, and reduces wear between the shaft 331 and the connecting seat 310.
[0034] like Figure 4 In one embodiment of this utility model, the adjustable damping shaft 330 further includes a bushing 333, which is sleeved on the shaft body 331. A connecting seat 310 and a rocker arm 320 are located at both ends of the bushing 333. The bushing 333 and the shaft body 331 cooperate to clamp the connecting seat 310, and the fastener 332 cooperates with the bushing 333 to clamp the rocker arm 320. In this solution, the bushing 333 and the shaft body 331 are tightly fitted together to clamp the connecting seat 310, providing stable support and positioning for the connecting seat 310 and ensuring its accurate and fixed position on the shaft body 331. Simultaneously, the fastener 332 cooperates with the bushing 333. By rotating the fastener 332, the bushing 333 generates a clamping force on the rocker arm 320, thereby adjusting the magnitude of the damping force. The bushing 333 can also separate the connecting seat 310 and the rocker arm 320, reducing the possibility of interference between them and simplifying their design.
[0035] like Figure 2In one embodiment of this utility model, the elastic element 340 is configured as a torsion spring, which is sleeved on the bushing 333. One end of the torsion spring is connected to the connecting seat 310, and the other end is connected to the swing rod 320. In this design, the torsion spring is sleeved on the bushing 333, with one end abutting against the connecting seat 310 and the other end abutting against the swing rod 320. When the lid 200 is closed, the torsion spring is in a torsional state and storing energy. When the user opens the lid 200, the torsion spring drives the swing rod 320 to rotate around the shaft 331. This embodiment uses a torsion spring as the elastic element 340, which has the advantages of simple structure, convenient installation, low cost, and high reliability. At the same time, the torsion spring is sleeved on the bushing 333, which can limit the torsion spring and ensure the stability of the torsion spring during torsion. Furthermore, the torsion spring is directly connected to the connecting seat 310 and the swing rod 320, making the transmission of elastic force more direct and ensuring the stability of the lid 200 during opening.
[0036] like Figure 3 In one embodiment of this utility model, the swing arm 320 is C-shaped. Traditional printer swing arms 320 usually adopt a straight rod design, which will occupy the longitudinal space inside the chassis to a certain extent. However, the swing arm 320 in this embodiment adopts a C-shaped design, and its arc part bends towards the cover 200, so that the swing arm 320 can be closer to the top of the chassis when the cover 200 is closed, reducing the longitudinal dimension inside the chassis. In addition, during the opening of the cover 200, the arc part of the C-shaped swing arm 320 can rotate further with the rotation of the cover 200, so that the cover 200 can be opened at a greater angle.
[0037] In another embodiment of this utility model, a notch is provided at the top of the opening of the housing 100, and the notch is positioned opposite to the swing arm 320. When the housing cover 200 is opened upward, the swing arm 320 can be rotated to be accommodated in the notch, thereby increasing the range of motion of the swing arm 320 and increasing the opening degree of the housing cover 200, further improving the flexibility of the printer housing.
[0038] This utility model also proposes a 3D printer, which has a printer chassis. The specific structure of the printer chassis is as described in the above embodiments. Since this 3D printer adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0039] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A printer chassis, characterized in that, include: The box has a side opening; A lid is provided at the opening; A hovering structure connects the housing and the housing cover. The hovering structure includes: a connecting seat disposed on the housing; a swing arm disposed on the housing cover; and an adjustable damping shaft, wherein the connecting seat and the swing arm are rotatably connected via the adjustable damping shaft. An elastic element that elastically connects the connecting seat and the swing arm.
2. The printer chassis as described in claim 1, characterized in that, The adjustable damping shaft includes: The shaft has one end inserted through the end of the connecting seat and the end of the swing rod; Fasteners are screwed to the shaft and cooperate to clamp the connecting seat and the rocker arm.
3. The printer chassis as described in claim 2, characterized in that, The connecting seat is provided with a strip-shaped hole, the shaft body is adapted to the strip-shaped hole, and the rocker arm is rotatably connected to the shaft body.
4. The printer chassis as described in claim 2, characterized in that, The adjustable damping shaft also includes a bushing, which is sleeved on the shaft body. The connecting seat and the rocker arm are located at both ends of the bushing. The bushing and the shaft body cooperate to clamp the connecting seat, and the fastener cooperates with the bushing to clamp the rocker arm.
5. The printer chassis as described in claim 4, characterized in that, The elastic element is configured as a torsion spring, which is sleeved on the bushing. One end of the torsion spring is connected to the connecting seat, and the other end is connected to the rocker arm.
6. The printer chassis as described in claim 1, characterized in that, The swing arm is C-shaped.
7. The printer chassis as described in claim 1, characterized in that, The top of the opening of the box is provided with a notch, which is positioned opposite to the swing arm.
8. A 3D printer, characterized in that, The printer chassis includes any one of claims 1 to 7.