Protective cap for exhaust port of negative pressure suction device
By designing a hat -protecting hat that attracts the exhaust port of the device, the dual blocking mechanism of the cap and the hat -protection plug is used to solve the problem of easy failure procedures in the existing technology. Pressiveness.
Patent Information
- Application Number
- CN202420826775.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The exhaust cap design of the existing negative pressure suction device only has one leak-proof procedure, which can easily lead to internal negative pressure failure.
Design a hat -protecting hat that attracts the exhaust port of the device, and achieve dual blocking effects through the cooperation of the cap and the hat -protection plug. The caps of the hat cover covers the exhaust port, the hat is plugged into the inside of the exhaust port, and the tilted design and elastic tendons are enhanced to enhance the confinement.
Dual blocking is achieved, enhanced the confinement, ensuring the internal negative pressure state inside the negative pressure attraction device, and avoiding the failure of the product caused by air leakage.
Smart Images
Figure CN222399981U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of negative pressure suction device components, and in particular relates to a protective cap for an exhaust port of a negative pressure suction device. Background Art
[0002] The protective cap is an essential part of the negative pressure drainage device, which covers the exhaust port (liquid discharge port) of the negative pressure suction device to ensure that the negative pressure suction device is in a negative pressure state during use and will not fail due to air leakage. In this field, negative pressure suction devices often use drainage balls to block the exhaust port or liquid discharge port. Conventional drainage balls generally use plugs to block the liquid discharge port, but this design only has one procedure to prevent air leakage. If the procedure fails, the internal negative pressure cannot be guaranteed.
[0003] In order to overcome the above problems, the utility model hopes to provide a protective cap for the exhaust port of a negative pressure suction device. Utility Model Content
[0004] The utility model aims to provide a protective cap for an exhaust port of a negative pressure suction device to solve the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A protective cap for an exhaust port of a negative pressure suction device comprises a fixing buckle, a connecting belt is provided at the fixing buckle, a protective cap body is provided at the other end of the connecting belt, the protective cap body comprises a protective cap cover, a protective cap plug is provided inside the protective cap cover; an elastic rib 1 is provided at the inner wall of the protective cap cover, and an elastic rib 2 is provided at the side wall of the protective cap plug.
[0007] Preferably, the inner wall of the protective cap cover is inclined, and correspondingly, the side wall of the protective cap plug is inclined; the gap between the inner wall of the protective cap cover and the side wall of the protective cap plug gradually decreases from the outside to the inside.
[0008] Preferably, the elastic rib one is located outside the elastic rib two.
[0009] Preferably, a guide section is provided at the end of the protective cap plug, and the diameter of the guide section is smaller than the diameter of the protective cap plug.
[0010] Preferably, the front and back sides of the protective cap body are provided with anti-slip patterns.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] (1) The utility model provides a protective cap for the exhaust port of a negative pressure drainage device. The protective cap plug blocks the exhaust port by cooperating with the protective cap cover and the protective cap plug. At the same time, the protective cap cover covers the outside of the exhaust port, thereby achieving a double blocking effect.
[0013] (2) The utility model provides a protective cap for the exhaust port of a negative pressure drainage device, wherein the gap between the protective cap cover and the protective cap plug gradually decreases from the outside to the inside, and the pipe wall of the exhaust port is clamped during the sealing process to increase the airtightness;
[0014] (3) The utility model provides a protective cap for the exhaust port of a negative pressure drainage device, wherein an elastic rib 1 is provided on the inner wall of the protective cap cover, and an elastic rib 2 is provided on the side wall of the protective cap plug. The presence of the elastic rib 1 and the elastic rib 2 can enhance the sealing effect of the protective cap cover and the protective cap plug;
[0015] (4) The utility model provides a protective cap for the exhaust port of a negative pressure drainage device, wherein a guide section is provided at the end of the protective cap plug, and the diameter of the guide section is much smaller than the diameter of the protective cap plug. The thinner guide section is convenient for inserting into the exhaust port, and convenient for guiding the protective cap plug into the exhaust port. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;
[0017] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;
[0018] Figure 3 For this utility model Figure 2 Cross-section of the middle BB;
[0019] In the figure: 1. fixing buckle; 2. connecting belt; 3. protective cap body; 4. protective cap cover; 5. protective cap plug; 6. elastic rib 1; 7. elastic rib 2; 8. guide section; 9. anti-slip pattern. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] A protective cap for the exhaust port of a negative pressure suction device includes a fixing buckle 1, and the device is fixed to a target device through the fixing buckle 1. A connecting belt 2 is provided at the fixing buckle 1, and the other end of the connecting belt 2 is connected to a protective cap body 3. The protective cap body 3 includes a protective cap cover 4, and a protective cap plug 5 is provided inside the protective cap cover 4. When the device is used, the protective cap plug 5 is inserted into the exhaust port, and the protective cap cover 4 wraps the exhaust port tightly from the outside. In order to enhance the sealing effect, the inner wall of the protective cap cover 4 is inclined, and correspondingly, the side wall of the protective cap plug 5 is inclined. At the same time, the gap between the inner wall of the protective cap cover 4 and the side wall of the protective cap plug 5 gradually decreases from the outside to the inside. An elastic rib 1 6 is provided on the inner wall of the protective cap cover 4, and an elastic rib 2 7 is provided on the side wall of the protective cap plug 5, and the elastic rib 1 6 is located on the outside of the elastic rib 2 7, which is conducive to increasing the blocking effect of the device. In order to facilitate the use of the protective cap body 3, a guide section 8 is provided at the end of the protective cap plug 5. The diameter of the guide section 8 is significantly smaller than the diameter of the protective cap plug 5. The existence of the guide section 8 can facilitate the introduction of the protective cap plug 5 into the exhaust port. In order to prevent slipping, anti-slip grooves 9 are provided on the front and back of the protective cap body 3.
[0022] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A protective cap for an exhaust port of a negative pressure suction device, characterized in that: It comprises a fixing buckle, a connecting belt is arranged at the fixing buckle, a protective cap body is arranged at the other end of the connecting belt, the protective cap body comprises a protective cap cover, a protective cap plug is arranged inside the protective cap cover; an elastic rib 1 is arranged at the inner wall of the protective cap cover, and an elastic rib 2 is arranged at the side wall of the protective cap plug.
2. The protective cap for the exhaust port of a negative pressure suction device according to claim 1, characterized in that: The inner wall of the protective cap cover is inclined, and correspondingly, the side wall of the protective cap plug is inclined; the gap between the inner wall of the protective cap cover and the side wall of the protective cap plug gradually decreases from the outside to the inside.
3. The protective cap for the exhaust port of a negative pressure suction device according to claim 1, characterized in that: The elastic rib one is located outside the elastic rib two.
4. The protective cap for the exhaust port of a negative pressure suction device according to claim 1, characterized in that: The end of the protective cap plug is provided with a guide section, the diameter of which is smaller than the diameter of the protective cap plug.
5. The protective cap for the exhaust port of a negative pressure suction device according to claim 1, characterized in that: The front and back sides of the protective cap body are both provided with anti-slip patterns.