Plastic dust cup holder sealing structure

Abstract

This utility model relates to the field of vacuum cleaner technology, specifically a plastic dust cup holder sealing structure, including a holder body, a cyclone cone assembly inside the holder body, and a collection shell inside the holder body. The bottom of the collection shell has a groove, with two slots penetrating the holder body and extending into its interior. Each slot is connected to a spring and a telescopic rod, with each spring fitted over the telescopic rod. This utility model uses a cover plate, and the groove at the bottom of the collection shell houses an elastic locking assembly consisting of a spring and a telescopic rod. When the cover plate is installed, the connecting block fits tightly against the cover plate under the spring force, forming an elastic seal. The continuous spring force compensates for deformation or assembly deviations of the cover plate due to long-term use, ensuring that the cover plate and the sealing surface at the bottom of the collection shell remain in close contact, reducing gas leakage and dust overflow caused by gaps.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaner technology, specifically to a sealing structure for a plastic dust cup holder. Background Technology

[0002] Vacuum cleaners consist of a suction hose, wheels, and a dust bag. Based on their structure, they can be divided into upright, canister, and handheld types. Based on their usage, they can be divided into floor-standing, brush, and portable types. The principle is that the motor drives the impeller, and the negative pressure generated by the rotation of the impeller sucks in dust, debris, and air together into the box to achieve the purpose of cleaning. Its purpose is to clean the floors, carpets, sofas, walls, furniture, clothing, and books on bookshelves that are generally difficult to remove, including dust, dirt, and debris.

[0003] A search revealed a utility model patent with publication number CN203693492U, which discloses a dust cup sealing structure for a cyclone vacuum cleaner. The dust cup cover is simultaneously sealed to the top of the outer edge of the dust cup and the top of the inner cyclone barrel. The dust cup also includes an inner annular wall for the cyclone and a dust collection chamber located outside the inner annular wall. This utility model effectively isolates the cyclone chamber and the dust collection chamber, preventing dust in the dust collection chamber from flowing back into the cyclone chamber and improving dust removal efficiency.

[0004] However, the above design still has shortcomings. The design requires staff to frequently disassemble and reassemble the dust cup. The seal between the bottom cover and the bottom of the dust cup relies on elastic seals (such as silicone rings). Repeated disassembly and reassembly will cause the seals to rub against the sealing groove repeatedly, resulting in local wear or deformation. At the same time, long-term exposure to dust particles will cause scratches on the surface of the seals, damaging their integrity and creating a channel for gas and dust leakage. Utility Model Content

[0005] The purpose of this invention is to provide a sealing structure for a plastic dust cup holder to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic dust cup holder sealing structure, comprising a holder body, a cyclone cone assembly disposed inside the holder body, a collection shell disposed inside the holder body, a groove being formed at the bottom of the collection shell, two slots being formed inside the groove, the two slots passing through the holder body and extending into the interior of the holder body, a spring and a telescopic rod being connected inside each slot, each spring being sleeved on the outside of the telescopic rod, a connecting block being connected to one end of each telescopic rod that is close to each other, and a cover plate being installed on the outside of the groove.

[0007] The cyclone cone assembly includes a mounting bracket, which is disposed inside the bracket body, and a dust collection hood is installed at the bottom of the mounting bracket.

[0008] The dust collection hood has a central tube installed at its bottom, and an installation frame is installed above the mounting bracket. The installation frame is equipped with filter cotton.

[0009] The mounting bracket has an annular groove on its upper part, and a pull ring is installed inside the annular groove. The bottom of the collecting housing has a limiting groove, which is slidably connected to two connecting blocks.

[0010] The bracket body has two first slots inside, and the bracket body is engaged with the mounting bracket through the first slots.

[0011] The bracket body has two second slots inside, and the bracket body is engaged with the vacuuming device through the second slots.

[0012] The bracket body has a push switch installed on its exterior, a connecting tube installed on its exterior, two mounting slots inside the connecting tube, and multiple pads installed at the bottom of the bracket body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention features a cover plate with an elastic locking assembly consisting of a spring and a telescopic rod installed in a groove at the bottom of the housing. When the cover plate is installed, the connecting block fits tightly against the cover plate under the spring force, forming an elastic seal. Compared to traditional snap-fit ​​or threaded structures, the continuous spring force can compensate for deformation or assembly deviations of the cover plate caused by long-term use, ensuring that the cover plate and the sealing surface at the bottom of the housing remain in close contact at all times. This reduces gas leakage and dust spillage caused by gaps. The cover plate is directly locked by the spring and telescopic rod assembly, eliminating the need for complex multi-snap or rotating structures. This results in less wear on the sealing surface during disassembly and assembly, and avoids problems such as snap fatigue and thread stripping caused by repeated opening and closing in traditional designs, thus extending the service life of the sealing structure. Attached Figure Description

[0015] Figure 1 This is a perspective view of a sealing structure for a plastic dust cup holder according to this utility model;

[0016] Figure 2 This is a top sectional view of a sealing structure for a plastic dust cup holder according to this utility model;

[0017] Figure 3 This is a top sectional view of a sealing structure for a plastic dust cup holder according to this utility model;

[0018] Figure 4 This is a perspective view of the mounting bracket of the sealing structure of a plastic dust cup holder according to the present invention;

[0019] Figure 5 This is a side view of a sealing structure for a plastic dust cup holder according to the present invention.

[0020] In the picture:

[0021] 1. Bracket body; 2. Connecting pipe; 3. Press switch; 4. Pad; 5. Mounting groove; 6. Second slot; 7. First slot; 8. Collection housing; 9. Cyclone cone assembly; 901. Pull ring; 902. Dust collection hood; 903. Central tube; 904. Filter cotton; 905. Mounting frame; 906. Annular groove; 907. Mounting bracket; 10. Connecting block; 11. Cover plate; 12. Groove; 13. Limiting slide; 14. Telescopic rod; 15. Spring. Detailed Implementation

[0022] 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 protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides a technical solution: a sealing structure for a plastic dust cup holder, including a holder body 1, a cyclone cone assembly 9 inside the holder body 1, a collection shell 8 inside the holder body 1, a groove 12 at the bottom of the collection shell 8, two slots inside the groove 12, the two slots passing through the holder body 1 and extending into the interior of the holder body 1, a spring 15 and a telescopic rod 14 connected inside each slot, each spring 15 being sleeved on the outside of the telescopic rod 14, and a connecting block 10 connected to one end of each telescopic rod 14 that is close to each other, and a cover plate 11 installed on the outside of the groove 12. The spring 15 and the telescopic rod 14 in the groove 12 cooperate with the connecting block 10 so that the cover plate 11 can be self-adaptively pressed by the elastic force of the spring 15 after installation. This elastic sealing design can compensate for the deformation of plastic parts caused by temperature changes or long-term use, avoid the sealing failure caused by fatigue fracture of traditional rigid buckles, and significantly improve the reliability of bottom sealing.

[0024] The cyclone cone assembly 9 includes a mounting bracket 907, which is located inside the bracket body 1. A dust collection hood 902 is installed at the bottom of the mounting bracket 907. The dust collection hood 902 cooperates with the central tube 903 so that after the dust-laden airflow is separated by the cyclone, the dust falls directly into the collection shell 8.

[0025] The dust collection hood 902 has a central tube 903 installed at its bottom, and a mounting frame 905 is installed above the mounting bracket 907. The mounting frame 905 is equipped with a filter cotton 904. The filter cotton 904 in the mounting frame 905 filters the exhaust airflow, intercepts fine dust, and prevents it from entering the motor or being discharged into the air, thus protecting the equipment and improving air quality.

[0026] The mounting bracket 907 has an annular groove 906 on its upper part. A pull ring 901 is installed inside the annular groove 906. The pull ring 901 inside the annular groove 906 makes it easy for the user to remove the entire cyclone cone assembly 9 for cleaning, avoiding dust accumulation that affects the separation efficiency and extending the product's service life.

[0027] The bottom of the collection housing 8 is provided with a limiting groove 13, which is slidably connected to two connecting blocks 10. The sliding cooperation between the limiting groove 13 and the connecting blocks 10 ensures that the cover plate 11 moves along a preset trajectory during installation, avoiding poor sealing due to misalignment. At the same time, the sliding connection can disperse the pressure of the spring 15, making the sealing force distribution more uniform.

[0028] The bracket body 1 has two first slots 7 inside. The bracket body 1 is engaged with the mounting bracket 907 through the first slots 7. The mechanical locking function of the engagement structure ensures that the components will not loosen under vibration and maintains the integrity of the seal.

[0029] The bracket body 1 has two second slots 6 inside. The bracket body 1 is engaged with the vacuum cleaner through the second slots 6, the first slot 7 is engaged with the mounting bracket 907, and the second slot 6 is engaged with the vacuum cleaner, which realizes the rapid assembly and disassembly of modular components and allows maintenance to be completed without tools.

[0030] The bracket body 1 has a push switch 3 installed on its exterior, a connecting tube 2 installed on its exterior, two mounting slots 5 inside the connecting tube 2, and multiple pads 4 installed at the bottom of the bracket body 1. The design of the push switch 3 and the connecting tube 2 allows the bracket body 1 to be disassembled and assembled with the vacuum cleaner.

[0031] Working principle: During use, the dust-laden airflow enters the bracket body 1 through the connecting pipe 2. Under the action of the cyclone cone assembly 9, gas-solid separation is carried out, and the dust falls into the collection shell 8. The bottom cover plate 11 provides elastic pressure through the spring 15 and the telescopic rod 14 in the groove 12, so that the connecting block 10 and the limiting slide groove 13 are tightly matched to achieve self-adaptive sealing and prevent dust leakage. The mounting bracket 907 is snapped into the bracket body 1 through the first slot 7, and the bracket body 1 is connected to the dust collection device through the second slot 6 to ensure the stability of the overall structure.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic dust cup holder seal structure comprising a holder body (1), characterized in that: The support body (1) is provided with a cyclone cone assembly (9) inside. The support body (1) is provided with a collection shell (8) inside. The bottom of the collection shell (8) is provided with a groove (12). The groove (12) has two slots inside. The two slots pass through the support body (1) and extend into the support body (1). Each slot is connected with a spring (15) and a telescopic rod (14). Each spring (15) is sleeved on the outside of the telescopic rod (14). Each telescopic rod (14) has a connecting block (10) connected to one end close to the other. The groove (12) is provided with a cover plate (11).

2. A plastic dust cup carrier seal as defined in claim 1, wherein: The cyclone cone assembly (9) includes a mounting bracket (907) which is disposed inside the bracket body (1) and a dust collection hood (902) is installed at the bottom of the mounting bracket (907).

3. A plastic dust cup carrier seal as defined in claim 2, wherein: A central tube (903) is installed at the bottom of the dust collection hood (902), and an installation frame (905) is installed above the installation bracket (907). Filter cotton (904) is installed inside the installation frame (905).

4. The plastic dust cup holder seal structure of claim 2, wherein: An annular groove (906) is provided above the mounting bracket (907), and a pull ring (901) is installed inside the annular groove (906).

5. The plastic dust cup carrier seal structure of claim 1, wherein: The bottom of the collecting housing (8) is provided with a limiting groove (13), which is slidably connected to two connecting blocks (10).

6. The plastic dust cup carrier seal structure of claim 1, wherein: The bracket body (1) has two first slots (7) inside, and the bracket body (1) is engaged with the mounting bracket (907) through the first slots (7).

7. The plastic dust cup carrier seal structure of claim 1, wherein: The bracket body (1) has two second slots (6) inside, and the bracket body (1) is engaged with the vacuuming device through the second slots (6).

8. The plastic dust cup carrier seal structure of claim 1, wherein: A push switch (3) is installed on the outside of the bracket body (1), a connecting tube (2) is installed on the outside of the push switch (3), two mounting slots (5) are opened inside the connecting tube (2), and multiple pads (4) are installed at the bottom of the bracket body (1).

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