Base window structure and powder suction device

Abstract

The utility model discloses a base window structure and a powder suction device, the base window structure comprises a lower shell and a built-in piece, and at least one side of the lower shell along a first direction is provided with a window hole; the built-in piece is detachably arranged in the lower shell, and the built-in piece comprises a support part and a perspective part connected with the support part; wherein the support part is fixedly held on the inner wall of the lower shell, and the perspective part is embedded in the window hole. According to the base window structure and the powder suction device, the base and the window are designed into two independent parts and are buckled and assembled after being formed, the process is simple, installation is convenient, and meanwhile the production cost can be greatly reduced; and in the assembling stage, any one of the lower shell and the built-in piece can be replaced and matched, so that the cost rise caused by the overall scrapping of the product due to local problems is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a base window structure and a powder inhalation device. Background Art

[0002] Powder inhalers are primarily used to treat respiratory conditions such as asthma and chronic obstructive pulmonary disease. They deliver the drug in the form of a dry powder into the patient's respiratory tract, allowing the patient to inhale the drug and achieve therapeutic effects. The main feature of a dry powder inhaler is that the drug is stored in dry powder form, eliminating the need for a liquid or gas-driven device. It typically consists of a container containing the drug and a mouthpiece. When the patient inhales, the drug is released into the patient's respiratory tract, achieving its therapeutic effect.

[0003] To facilitate user observation of the device's internal conditions, powder inhalers feature a window on the sidewall of the base, enabling real-time monitoring. Existing powder inhalers often incorporate a single-piece base and window, manufactured using a two-shot molding process. This involves first molding the base in a mold, then switching molds while retaining the base, and then remolding the window inside the base, completing the production of the desired product.

[0004] However, the double-shot molding process is relatively complex, and its development and production costs are high, which is not conducive to large-scale popularization and production. Therefore, this application proposes a new base window structure to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a base window structure and a powder inhalation device, by designing the base and the window into two separate parts, which are assembled together after molding, so the process is simple and the cost is low.

[0006] The purpose of this utility model is achieved by the following technical solutions:

[0007] The utility model discloses a base window structure, comprising:

[0008] a lower shell, wherein at least one side of the lower shell along the first direction is provided with a window hole;

[0009] An internal component is detachably disposed in the lower shell, and the internal component includes a bracket portion and a perspective portion connected thereto;

[0010] Wherein, the bracket portion is fixed on the inner wall of the lower shell, and the perspective portion is embedded in the window hole.

[0011] In this solution, by designing the base and window as two separate parts that snap together after molding, the process is simple and easy to install, while significantly reducing production costs. Furthermore, during assembly, if either the lower case or the internal components are defective, they can be replaced with new ones, avoiding the costly cost of scrapping the entire product due to a localized problem.

[0012] In some embodiments, there are two viewing windows, which are symmetrically distributed on both sides of the lower shell.

[0013] In the above solution, the two viewing windows are symmetrically arranged so that the user can observe on either side of the width direction of the lower shell, which is convenient for use.

[0014] In some embodiments, the viewing holes are vertically arranged elliptical or bar-shaped holes.

[0015] In the above solution, the vertically arranged ellipse or strip shape can expand the observable range of the window hole. Note that the window hole is preferably located in the middle of the side wall of the lower shell, which makes the side wall of the lower shell not have a gap, thereby reducing the impact on its structural strength.

[0016] In some embodiments, the cross-section of the window hole gradually decreases from the inside to the outside.

[0017] In the above solution, the window hole forms a tapered surface that fits the edge of the see-through portion. This surface has the functions of guiding installation and limiting fixation, so that the see-through portion can be tightly embedded in the window hole.

[0018] In some embodiments, a slot is provided on the inner wall of the lower shell, and the bracket portion is provided in the slot.

[0019] In the above solution, the slot not only facilitates installation, but also limits the bracket part, thereby improving the stability between the two.

[0020] In some embodiments, the bracket portion includes a bottom plate and an elastic arm connected thereto; wherein, the bottom plate is arranged on the bottom wall of the lower shell, and the elastic arm is arranged on the side wall of the lower shell.

[0021] In some embodiments, a positioning area and an auxiliary column are provided on the bottom plate; wherein the auxiliary column is used to correct and locate the position of the capsule chamber of the powder inhalation device.

[0022] In the above solution, the positioning area is formed by a downward-facing groove on the upper surface of the base plate. This prevents misalignment and allows the capsule chamber of the powder inhaler to be quickly positioned by aligning it with the positioning area when installing it into the lower shell, facilitating operation. Auxiliary columns are integrally formed on the base plate. These auxiliary columns are tapered columns that are smaller at the top and larger at the bottom. Two of them are positioned side by side on either side of the positioning area. This structure and number of auxiliary columns allow them to accurately position the capsule chamber (not shown) of the powder inhaler, ensuring precise installation.

[0023] In some embodiments, a button opening is provided on one side of the lower shell along the second direction, and a rotating shaft seat is provided on the other side.

[0024] In the above solution, the button port is used to install the operating button of the powder inhalation device, and the shaft seat is used to rotate the connecting carrier plate and the suction nozzle (not shown) to realize the opening and closing function of the local position.

[0025] In some embodiments, a stiffening plate is provided on the lower shell near the button opening.

[0026] In the above solution, the stiffener can enhance the structural strength of the button opening of the lower shell to avoid affecting the installation of the buttons and the supporting plate of the powder inhalation device.

[0027] In some embodiments, an anti-slip portion is provided on the outer side of the lower shell, and the anti-slip portion is located below the rotating shaft seat.

[0028] In the above solution, the anti-slip portion is used to increase the friction between the lower shell and the fingers, thereby playing an anti-slip role and improving the stability of the grip.

[0029] In addition, the utility model also discloses a powder inhalation device, including the above-mentioned base window structure, thereby optimizing the production process and reducing production costs.

[0030] Compared with the prior art, the beneficial effects of the present invention include at least:

[0031] 1. The base and window are designed as two separate parts, which are assembled together after molding. The process is simple and the installation is convenient, which can significantly reduce the production cost.

[0032] 2. During the assembly phase, if any of the lower shell and internal components are defective, they can be replaced with new ones to avoid local problems causing the entire product to be scrapped and resulting in increased costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the base window structure of the utility model under a viewing angle.

[0034] Figure 2 It is a schematic diagram of the base window structure of the present invention from another perspective.

[0035] Figure 3 It is a structural schematic diagram of the lower shell of the utility model.

[0036] Figure 4 It is a structural diagram of the built-in component of the utility model.

[0037] Figure 5 It is a structural schematic diagram of the powder inhalation device of the present utility model.

[0038] In the figure: 1. lower shell; 11. window hole; 12. slot; 13. button port; 14. shaft seat; 15. stiffening plate; 16. anti-slip part; 2. built-in parts; 21. bracket part; 211. bottom plate; 212. elastic arm; 22. perspective part; 23. positioning area; 24. auxiliary column. DETAILED DESCRIPTION

[0039] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make this disclosure more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. Identical reference numerals in the figures denote identical or similar structures, and thus repeated descriptions thereof will be omitted.

[0040] The words expressing positions and directions described in this utility model are all explained with reference to the accompanying drawings as examples, but they can be changed as needed, and all such changes are included in the protection scope of this utility model.

[0041] See also Figure 1 and Figure 4 As shown, the utility model discloses a base window structure, which includes a lower shell 1 and an internal component 2.

[0042] The lower shell 1 is a generally flat sleeve-like structure having a cavity therein for accommodating a capsule chamber (not shown). In the present application, the lower shell 1 is preferably injection-molded from opaque plastic to prevent direct sunlight from affecting the drug powder inside.

[0043] In addition, a viewing window 11 is provided on at least one side of the lower shell 1 along a first direction (which may be the width direction of the lower shell 1 ) to facilitate user observation of the interior of the lower shell 1 , for example, to determine whether the interior of the lower shell 1 is contaminated or the amount of powder remaining in the capsule. In the present application, two viewing windows 11 are provided, symmetrically located on either side of the lower shell 1 . This allows for convenient observation from either side of the lower shell 1 along its width.

[0044] The internal component 2 is a roughly U-shaped structure, removably mounted within the lower housing 1. The two components are securely connected via an elastic snap fit. In this application, the internal component 2 comprises a bracket portion 21 and a connected transparent portion 22, which can be integrally formed. The transparent portion 22 aligns with the viewing window 11, and at least the transparent portion 22 is injection-molded from a light-transmitting plastic.

[0045] Compared with the existing design, the base window structure of the present application forms the lower shell 1 and the built-in component 2 independently. During assembly, the built-in component 2 is inserted into the corresponding position in the lower shell 1, so that the bracket part 21 is fixed on the inner wall of the lower shell 1. The bracket part 21 is squeezed by the side wall of the lower shell 1 and provides outward elastic force, thereby embedding the transparent part 22 in the window hole 11.

[0046] By designing the base and window as two separate parts that snap together after molding, the process is simple and installation is convenient, significantly reducing production costs. Furthermore, during assembly, if either the lower housing 1 or the internal component 2 fails, it can be replaced with a new one, avoiding the costly cost of scrapping the entire product due to a localized problem.

[0047] In some embodiments, the viewing hole 11 is a vertically arranged elliptical or bar-shaped hole to expand the observable range of the viewing hole 11. Note that the viewing hole 11 is preferably located in the middle of the side wall of the lower shell 1, so that there is no gap in the side wall of the lower shell 1, thereby reducing the impact on its structural strength.

[0048] See also Figure 3 As shown, in some embodiments, the cross-section of the window hole 11 gradually decreases from the inside to the outside, thereby forming a conical surface that fits with the edge of the perspective portion 22. This surface has the function of guiding installation and limiting fixation, so that the perspective portion 22 can be tightly embedded in the window hole 11.

[0049] join Figure 1 and Figure 3 As shown, in some embodiments, a slot 12 is provided on the inner wall of the lower shell 1, and the bracket portion 21 is provided in the slot 12. While facilitating installation, the bracket portion 21 can also be limited, thereby improving the stability between the two.

[0050] like Figure 4 As shown, the bracket portion 21 includes a base plate 211 and elastic arms 212 connected thereto, which can be integrally formed. The base plate 211 is disposed on the bottom wall of the lower housing 1, such as the circular groove portion at the bottom of the slot 12, and the elastic arms 212 are disposed on the side walls of the lower housing 1, such as the strip-shaped groove portions on both sides of the slot 12.

[0051] In some embodiments, the base plate 211 is provided with a positioning area 23 and auxiliary columns 24. The positioning area 23 is formed by a downwardly recessed groove on the upper surface of the base plate 211, providing foolproof positioning. When the capsule chamber of the powder inhalation device is installed into the lower shell 1, the capsule chamber can be quickly positioned by aligning the capsule chamber with the positioning area 23, facilitating operation. The auxiliary columns 24 are integrally formed on the base plate 211. They are tapered columns that are smaller at the top and larger at the bottom. There are two auxiliary columns 24, arranged side by side on one side of the positioning area 23. This structure and number of auxiliary columns 24 enable them to correct and locate the position of the capsule chamber (not shown) of the powder inhalation device, ensuring precise installation of the capsule chamber.

[0052] Still like Figure 3 and Figure 5 As shown, in some embodiments, a button opening 13 is provided on one side of the lower housing 1 along the second direction (the lengthwise direction) for mounting an operating button of the powder inhalation device. A rotating shaft seat 14 is provided on the other side of the lower housing 1 along the second direction for rotatably connecting the supporting plate and the nozzle (not shown), thereby realizing a partial opening and closing function.

[0053] Furthermore, a reinforcing plate 15 is provided near the button opening 13 of the lower shell 1 . The reinforcing plate 15 can enhance the structural strength of the button opening 13 of the lower shell 1 to avoid affecting the installation of the buttons and the supporting plate of the powder inhalation device.

[0054] See also Figure 2 As shown, in some embodiments, an anti-slip portion 16 is provided on the outer side of the lower shell 1. The anti-slip portion 16 is located below the rotating shaft seat 14. It is used to increase the friction between the lower shell 1 and the fingers, play an anti-slip role and improve the stability of holding.

[0055] See also Figure 5 As shown, the utility model also discloses a powder inhalation device, which adopts the above-mentioned base window structure to optimize the production process and reduce production costs.

[0056] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limiting the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the utility model without departing from the principles and purpose of the utility model. All of these changes should fall within the scope of protection of the claims of the present invention.

Claims

1. A base window structure, characterized in that: include: A lower shell (1), wherein at least one side of the lower shell (1) along a first direction is provided with a viewing window (11); An internal component (2) is detachably disposed in the lower shell (1), the internal component (2) comprising a bracket portion (21) and a perspective portion (22) connected thereto; The bracket portion (21) is fixed on the inner wall of the lower shell (1), and the perspective portion (22) is embedded in the window hole (11).

2. The base window structure according to claim 1, characterized in that: There are two viewing windows (11), which are symmetrically distributed on both sides of the lower shell (1).

3. The base window structure according to claim 1, characterized in that: The cross section of the viewing window (11) gradually decreases from the inside to the outside.

4. The base window structure according to claim 1, characterized in that: The inner wall of the lower shell (1) is provided with a slot (12), and the bracket portion (21) is arranged in the slot (12).

5. The base window structure according to claim 1, characterized in that: The bracket portion (21) comprises a bottom plate (211) and an elastic arm (212) connected thereto; wherein the bottom plate (211) is arranged on the bottom wall of the lower shell (1), and the elastic arm (212) is arranged on the side wall of the lower shell (1).

6. The base window structure according to claim 5, characterized in that: The bottom plate (211) is provided with a positioning area (23) and an auxiliary column (24); wherein the auxiliary column (24) is used to correct and locate the position of the capsule chamber of the powder inhalation device.

7. The base window structure according to claim 1, characterized in that: The lower shell (1) is provided with a button opening (13) on one side along the second direction, and a rotating shaft seat (14) on the other side.

8. The base window structure according to claim 7, characterized in that: The lower shell (1) is provided with a stiffening plate (15) near the button opening (13).

9. The base window structure according to claim 7, characterized in that: An anti-slip portion (16) is provided on the outer side of the lower shell (1), and the anti-slip portion (16) is located below the rotating shaft seat (14).

10. A powder inhalation device, characterized in that: It comprises the base window structure according to any one of claims 1 to 9.

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