Negative pressure fan noise reduction structure of hair suction cat nest and hair suction cat nest thereof

Abstract

The utility model provides a negative pressure fan noise reduction structure of a hair suction cat nest. The negative pressure fan noise reduction structure comprises a box body, an elastic sealing ring, a negative pressure fan and a shock pad, an air inlet is formed in the front end of the box body, and an air outlet is formed in the side wall of the box body; the elastic sealing ring is arranged on the edge of the inner port of the air inlet; an exhaust inlet is formed in the front end of the negative pressure fan and is propped against the elastic sealing ring; the side wall of the negative pressure fan is separated from the inner wall of the box body; and the shock pad is arranged between the rear end of the negative pressure fan and the inner wall of the box body. The utility model further provides a hair suction cat house which comprises the negative pressure fan noise reduction structure of the hair suction cat house and further comprises a base, a shell and a filter box, the filter box, the box body and the noise reduction box are all arranged in the base and the shell, and the wind resistance chamber is located on the shell.

Description

Technical Field

[0001] This utility model belongs to the field of pet products, specifically relating to a negative pressure fan noise reduction structure for a cat hair-absorbing cat bed and the cat bed itself. Background Technology

[0002] Installing a grooming device and a hair-absorbing device at the entrance of the cat bed or litter box allows you to groom your cat's fur as they enter and exit. The grooming device combs the cat's fur, while the hair-absorbing device removes the loose fur, reducing shedding and saving you time. The hair-absorbing device in the cat bed primarily uses a negative pressure fan to create suction. The higher the fan speed, the stronger the suction; however, high-speed fan operation can produce a whistling sound due to the high-frequency vibration of the impeller and motor, and the resulting high-speed airflow can also generate significant noise, startling the cat and affecting the effectiveness of the grooming device and the cat bed. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a negative pressure fan noise reduction structure for a cat hair-absorbing cat bed and the cat bed itself, so as to overcome the above problems or at least partially solve or alleviate the above problems.

[0004] This utility model proposes a negative pressure fan noise reduction structure for a cat hair-absorbing cat bed, including:

[0005] The box body is assembled inside the cat bed that absorbs hair. The front end of the box body is provided with an air inlet, and the side wall of the box body is provided with an air outlet.

[0006] An elastic sealing ring is disposed on the inner port edge of the air inlet;

[0007] A negative pressure fan, the front end of which is an air intake, the air intake resting on the elastic sealing ring; the side wall of the negative pressure fan is kept separate from the inner wall of the box body;

[0008] A shock-absorbing pad is disposed between the rear end of the negative pressure fan and the housing.

[0009] This utility model also has the following optional features.

[0010] Optionally, the elastic sealing ring is embedded in the air inlet, and the front end of the negative pressure fan extends into the elastic sealing ring.

[0011] Optionally, a support portion is provided on the inner side of the rear end of the box body, and a first groove is provided at the end of the support portion, with the shock-absorbing pad disposed in the first groove.

[0012] Optionally, the shock-absorbing pad is provided with a second groove, and the rear end of the negative pressure fan is inserted into the second groove.

[0013] Optionally, the air outlet of the box is connected to a silencer box.

[0014] Optionally, the silencing box includes a silencing shell, a silencing bend is provided inside the silencing shell, and silencing cotton is placed between the silencing bend and the silencing shell.

[0015] Optionally, the outlet of the silencer box is connected to a wind resistance chamber, which is divided into multiple wind resistance zones by multiple partitions. Each wind resistance zone has an air outlet on its side wall, and a sponge block is also provided in the wind resistance chamber.

[0016] The present invention also proposes a cat hair-absorbing cat bed, including the negative pressure fan noise reduction structure of the cat hair-absorbing cat bed described in any of the above embodiments, and further including a base, a housing and a filter box. The filter box, the housing and the silencer box are all disposed in the base and the housing, and the wind resistance chamber is located on the housing.

[0017] This utility model discloses a negative pressure fan noise reduction structure for a cat hair-absorbing cat bed. The structure integrates a negative pressure fan into the box, with an elastic sealing ring between the front end of the negative pressure fan and the inner end of the air inlet of the box, and a shock-absorbing pad between the rear end of the negative pressure fan and the box. The side wall of the negative pressure fan is kept separate from the inner wall of the box, minimizing the transmission of high-speed vibrations from the negative pressure fan and preventing its whistling sound. A silencer box is also connected to the air outlet to silence the high-speed gas discharged from the negative pressure fan inside the box, thereby reducing the noise from the cat hair-absorbing cat bed and preventing the cat from being startled. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an embodiment of the negative pressure fan noise reduction structure of the cat hair-absorbing cat bed of this utility model;

[0019] Figure 2 This is another structural schematic diagram of an embodiment of the negative pressure fan noise reduction structure of the cat hair-absorbing cat bed of this utility model;

[0020] Figure 3 yes Figure 1 and Figure 2 A cross-sectional schematic diagram of the negative pressure fan noise reduction structure of the cat's hair-absorbing nest.

[0021] Figure 4 This is a front view of the cat bed that absorbs hair according to this utility model.

[0022] In the above diagram: 1. Box body; 101. Air inlet; 102. Air outlet; 103. Support; 104. First groove; 2. Elastic sealing ring; 3. Negative pressure fan; 4. Shock-absorbing pad; 401. Second groove; 5. Silencing box; 501. Silencing shell; 502. Silencing bend; 503. Silencing cotton; 6. Shell; 601. Air resistance chamber; 602. Partition; 603. Air outlet; 7. Sponge block; 8. Filter box; 801. Filter element; 9. Base.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0024] Example 1

[0025] refer to Figure 1 , Figure 2 and Figure 3 This utility model proposes a negative pressure fan noise reduction structure for a cat hair-absorbing cat bed, including: a box body 1, an elastic sealing ring 2, a negative pressure fan 3, and a shock-absorbing pad 4; the front end of the box body 1 is provided with an air inlet 101, and the side wall of the box body 1 is provided with an air outlet 102; the elastic sealing ring 2 is provided at the inner edge of the air inlet 101; the front end of the negative pressure fan 3 is an air intake, which rests on the elastic sealing ring 2; the side wall of the negative pressure fan 3 is kept separate from the inner wall of the box body 1; the shock-absorbing pad 4 is provided between the rear end of the negative pressure fan 2 and the inner wall of the box body 1.

[0026] The box body 1 has a square or cylindrical structure. The air inlet 101 of the box body 1 has a constricted structure. An elastic sealing ring 2 is provided on the inner side of the air inlet 101. The front end of the negative pressure fan 3 has a constricted air intake. The front end of the negative pressure fan 3 extends into the air inlet 101 from the inside and presses against the elastic sealing ring 2. It indirectly contacts the box body 1 through the elastic sealing ring 2. An annular space is formed between the side wall of the negative pressure fan 3 and the box body 1. The negative pressure fan 3 discharges gas into this annular space and discharges it through the air outlet 102 on the side wall of the box body 1. The rear end of the negative pressure fan 3 has a protruding annular ring. A shock-absorbing pad 4 is provided between the annular ring and the box body 1 to buffer the vibration of the negative pressure fan 3. The above structure ensures that the negative pressure fan 3 only contacts the box 1 through its front and rear ends. Furthermore, the front and rear ends of the negative pressure fan 3 are isolated from the box 1 by elastic seal 2 and shock-absorbing pad 4, respectively, which minimizes the transmission of high-speed vibration of the negative pressure fan and avoids the transmission of whistling sound from the negative pressure fan.

[0027] Example 2

[0028] refer to Figure 3 Based on Example 1, the elastic sealing ring 2 is embedded in the air inlet 101, and the front end of the negative pressure fan 3 extends into the elastic sealing ring 2.

[0029] The elastic sealing ring 2 is a ring-shaped silicone pad or a ring-shaped rubber pad. The front end of the negative pressure fan 3 extends into the elastic sealing ring 2 by at least 3 mm. The elastic sealing ring 2 is embedded in the inner end of the air inlet 101 of the box body 1 by at least 2 mm, so that the inlet of the negative pressure fan 3 is connected to the air inlet 101 of the box body 1 and limits and buffers vibration, minimizing the transmission of high-frequency vibration.

[0030] Example 3

[0031] refer to Figure 3 Based on Embodiment 1, a support portion 103 is provided on the inner side of the rear end of the box body 1, and a first groove 104 is provided at the end of the support portion 103, with the shock-absorbing pad 4 disposed in the first groove 104.

[0032] The support part 103 and the box body 1 are an integral structure. The support part 103 protrudes inward at the rear end of the box body 1. The shock-absorbing pad 4 is placed in the first groove 103 on the support part 103, which can prevent the shock-absorbing pad 4 from loosening.

[0033] Example 4

[0034] refer to Figure 3 Based on Example 3, a second groove 401 is provided on the shock-absorbing pad 4, and the rear end of the negative pressure fan 3 is inserted into the second groove 401.

[0035] The second groove 401 on the shock-absorbing pad 4 matches the rear end of the negative pressure fan 3. The rear end of the negative pressure fan 3 is inserted into the second groove 401, which can radially limit the negative pressure fan 3 and buffer the transmission of high-frequency vibration.

[0036] Example 5

[0037] refer to Figure 3 Based on Example 1, the air outlet 102 of the box body 1 is connected to a silencer box 5.

[0038] The silencer box 5 is connected to the air outlet 102 of the box body 1, and can silence the high-speed gas discharged by the negative pressure fan 3 inside the box body 1.

[0039] Example 6

[0040] refer to Figure 1 , Figure 2 and Figure 3 Based on embodiment 5, the silencing box 5 includes a silencing shell 501, a silencing bend 502 is provided inside the silencing shell 501, and a silencing cotton 503 is placed between the silencing bend 502 and the silencing shell 501.

[0041] The muffler box 5 includes a muffler housing 501. The side wall of the muffler housing 503 is padded with muffler cotton 503. Two pieces of muffler cotton 503 sandwich the muffler bend 502 in the middle. The wall of the muffler bend 502 is provided with multiple small holes that are connected to the inside of the muffler housing 503.

[0042] Example 7

[0043] refer to Figure 3 Based on Embodiments 5 and 6, the outlet of the silencing box 5 is connected to a wind resistance chamber 601. The wind resistance chamber 601 is divided into multiple wind resistance zones by multiple partitions 602. Each wind resistance zone has an air outlet 603 on its side wall. A sponge block 7 is also provided in the wind resistance chamber 601.

[0044] Because the airflow velocity of the negative pressure fan 3 is high when it is drawn in and discharged, the airflow discharged from the silencer box 5 will still produce noise due to the high velocity. The wind resistance chamber 601 is equivalent to expanding the cross-section of the outlet of the silencer box 5, which can effectively reduce the gas flow velocity. The multiple baffles 602 and sponge blocks 7 in the wind resistance chamber 601 can further reduce the airflow velocity and generate echo, so that the noise and echo cancel each other out, and further reduce the airflow noise.

[0045] Example 8

[0046] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention also proposes a cat hair removal nest, including the negative pressure fan noise reduction structure of the cat hair removal nest described in any of the above embodiments, and further including a base 9, a housing 6 and a filter box 8. The filter box 8, the housing 1 and the silencer box 5 are all disposed in the base 9 and the housing 6, and the wind resistance chamber 601 is located on the housing 6.

[0047] Both the housing 1 and the silencer box 5 are suspended and fixed within the base 9 of the pet hair absorber via ear plates. The filter box 8 is slidably assembled within the base 9 of the pet hair absorber. The air inlet 101 of the housing 1 is pluggably connected to the inner end of the filter box 8. The inner end of the filter box 8 is provided with a filter element 801. The air outlet 102 of the housing 1 is connected to the inlet of the silencer box 5. The outlet of the silencer box 5 is connected to the air resistance chamber 601 of the housing 6. The air resistance chamber 601 and the housing 6 are an integral structure. Multiple air outlets 603 are provided on the side wall of the air resistance chamber 601. The user can pull the filter box 8 out of the base 9 to separate the filter box 8 from the housing 1, so that the user can remove the filter element 801 to clean the pet hair filtered inside the filter box.

[0048] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims. Components and structures not described in detail in this embodiment are well-known components, common structures, or common means in the industry, and will not be described in detail here.

Claims

1. A negative pressure fan noise reduction structure for a lint cat nest, characterized by, It comprises: a box body (1) which is assembled in a cat litter box, the front end of the box body (1) is provided with an air inlet (101), and the side wall of the box body (1) is provided with an air outlet (102); an elastic sealing ring (2) which is arranged on the inner end port edge of the air inlet (101); a negative pressure fan (3) whose front end is a suction port which is placed on the elastic sealing ring (2), and the side wall of the negative pressure fan (3) is kept separate from the inner wall of the box body (1); a shock pad (4) which is arranged between the rear end of the negative pressure fan (3) and the box body (1).

2. The negative pressure fan noise reduction structure for a cat litter box according to claim 1, wherein The elastic sealing ring (2) is embedded in the inner end of the air inlet (101), and the front end of the negative pressure fan (3) extends into the elastic sealing ring (2).

3. The negative pressure fan noise reduction structure for a cat litter box according to claim 1, wherein The inner side of the rear end of the box body (1) is provided with a support part (103), the end part of the support part (103) is provided with a first groove (104), and the shock pad (4) is arranged in the first groove (104).

4. The negative pressure fan noise reduction structure for a cat litter box according to claim 3, characterized by, The shock pad (4) is provided with a second groove (401), and the rear end of the negative pressure fan (3) is inserted into the second groove (401).

5. The negative pressure fan noise reduction structure for a cat litter box according to claim 1, wherein The air outlet (102) of the box body (1) is connected with a sound attenuation box (5).

6. The negative pressure fan noise reduction structure for a cat litter box according to claim 5, wherein The sound attenuation box (5) comprises a sound attenuation shell (501), the sound attenuation shell (501) is provided with a sound attenuation elbow (502) therein, and the sound attenuation elbow (502) is padded with sound attenuation cotton (503) between the sound attenuation shell (501).

7. The negative pressure fan noise reduction structure for a cat litter box according to claim 5 or 6, characterized by, The outlet of the sound attenuation box (5) is connected with a wind resistance chamber (601), the wind resistance chamber (601) is divided into a plurality of wind resistance areas by a plurality of partitions (602), a plurality of air outlets (603) are arranged on the side wall of each wind resistance area, and a sponge block (7) is further arranged in the wind resistance chamber (601).

8. A lint trap comprising: The negative pressure fan noise reduction structure of the cat litter box according to any one of claims 5-7 further comprises a base (9), a shell (6) and a filter box (8), the filter box (8), the box body (1) and the sound attenuation box (5) are arranged in the base (9) and the shell (6), and the wind resistance chamber (601) is located on the shell (6).

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