A vacuum cleaner interface assembly having improved sealing

Abstract

The utility model discloses a vacuum cleaner interface assembly that good sealing, including dust catcher case and connecting pipe, dust catcher case circumference outer wall top fixedly connected with the installation seat of horizontal arrangement, the connecting pipe is located installation seat opposite face, installation seat and connecting pipe install same sealing assembly, sealing assembly includes the air intake interface of fixed connection in installation seat one side outer wall, air intake interface is linked together with installation seat, air intake interface outside slide set up with sealing ring no.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaner technology, specifically to a vacuum cleaner interface assembly with good sealing performance. Background Technology

[0002] Vacuum cleaners are widely used cleaning devices in modern homes and commercial spaces, and their performance directly affects cleaning results and user experience. The interface component, as a key part connecting the vacuum cleaner hose to the vacuum head or other accessories, plays a crucial role in the overall efficiency and suction power of the vacuum cleaner due to its sealing performance.

[0003] A search revealed a utility model patent with Chinese patent publication number CN203207962U, which discloses a sealing structure for the air inlet of a vacuum cleaner. The structure includes a top cover made of ABS or PP material and an air inlet pipe. The key feature is that the lower surface of the air inlet of the top cover protrudes downward to form an annular sealing edge, and the upper edge of the air inlet pipe is folded outward to form an annular flange. The flange and the sealing edge are press-fitted together to install the air inlet pipe onto the top cover.

[0004] The sealing structure of the aforementioned interface achieves sealing through the combination of sealing and flanging. However, it only provides one layer of protection, and damage is inevitable as the usage time increases. In this case, it can only be replaced, which is inconvenient to use and there is room for improvement. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum cleaner interface assembly with good sealing performance to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vacuum cleaner interface assembly with good sealing performance, comprising a vacuum cleaner housing and a connecting pipe. A horizontally mounted mounting base is fixedly connected to the upper part of the outer circumference of the vacuum cleaner housing. The connecting pipe is located directly opposite the mounting base. The mounting base and the connecting pipe are equipped with the same sealing assembly. The sealing assembly includes an air inlet fixedly connected to the outer wall of one side of the mounting base. The air inlet is connected to the mounting base. A sealing ring is slidably sleeved on the outside of the air inlet. The connecting pipe is slidably sleeved on the outside of the air inlet. A vertically arranged sealing ring is fixedly connected to the inner circumference of the connecting pipe. An abutment ring is slidably inserted into the inside of the connecting pipe. When the end of the air inlet and the abutment ring are in contact, the end of the connecting pipe will also be in contact with the sealing ring. Several equally spaced annular protrusions are fixedly connected to the outer circumference of the air inlet, and the annular protrusions are interference-fitted with the connecting pipe.

[0007] The system provides triple sealing for the air inlet and connecting pipe, effectively ensuring a tight seal. Even if a sealing ring is lost, a proper seal can still be achieved. Simply grasp the end of the connecting pipe and place it over the air inlet. The annular protrusion on the outside of the air inlet will then fit against the inner wall of the connecting pipe. The end of the connecting pipe then contacts and presses against the first sealing ring, while the end of the air inlet contacts the abutment ring inserted inside the connecting pipe. When the vacuum cleaner is working, the abutment ring between the air inlet and the second sealing ring is deformed by the pressure, filling the gap between them. The first sealing ring also fills the gap between the connecting pipe and the air inlet. Because the annular protrusion and the connecting pipe are pressurized, the annular protrusion deforms under pressure when the connecting pipe is placed over it, achieving a complete fit against the inner surface of the connecting pipe. Even if the first sealing ring and the abutment ring are damaged or lost, the annular protrusion can still provide a seal.

[0008] As a further preferred embodiment of this technical solution, a protective sleeve is coaxially fixed to one side of the outer wall of the sealing ring, and the protective sleeve surrounds the outside of the connecting pipe.

[0009] As a further preferred embodiment of this technical solution, a clamping assembly is installed between the mounting base and the connecting pipe. The clamping assembly includes two connecting sleeves fixedly connected to the outer circumference of the connecting pipe, and the openings of the two connecting sleeves are arranged in opposite directions. Two parallel mounting rings are fixedly connected to the outer wall of the mounting base near the connecting pipe. A hook plate is slidably inserted into the interior of each of the two mounting rings, and the two hook plates are slidably inserted into the interiors of the two connecting sleeves respectively.

[0010] As a further preferred embodiment of this technical solution, an electromagnet is fixedly installed on the inner wall of each of the two mounting rings near the mounting base, and an iron block is fixedly connected to the end of each of the two hook plates near the mounting base, with the two iron blocks facing the two electromagnets respectively.

[0011] Twisting the connecting tube counterclockwise will cause the connecting sleeve outside the connecting tube to be fitted onto the two hook plates. Turning on the switch will create a circuit between the power supply circuit and the electromagnet. When the vacuum cleaner is powered on and started, the electromagnet will also start simultaneously to generate suction. The iron block will be attracted to move along the mounting ring toward the electromagnet. The iron block will then pull the connecting sleeve and connecting tube closer to the mounting base via the hook plates. At this time, the pressure on the sealing ring and the abutment ring will increase, and their deformation will be greater, which can further improve the sealing effect and ensure the stability of the connecting tube.

[0012] As a further preferred embodiment of this technical solution, a switch is fixedly installed on the top outer wall of the mounting base, and the switch is electrically connected to the circuit part of the vacuum cleaner power supply system that controls the on and off of the electromagnet through a wire.

[0013] As a further preferred embodiment of this technical solution, the hook plate has arc-shaped edges near the corners of the connecting sleeve end and the corners of the internal slot of the connecting sleeve.

[0014] As a further preferred embodiment of this technical solution, several of the annular protrusions are made of thermoplastic polyurethane material.

[0015] This utility model provides a vacuum cleaner interface assembly with good sealing performance, which has the following beneficial effects: (1) By setting a sealing component, this utility model can perform three-stage sealing treatment on the air inlet and the connecting pipe, effectively ensuring the sealing effect of both. Even if the sealing ring is lost, effective sealing can still be achieved. Grasp the end of the connecting pipe and put it on the outside of the air inlet. The annular protrusion on the outside of the air inlet will also fit against the inner wall of the connecting pipe. Then the end of the connecting pipe and the first sealing ring will contact and squeeze, and the end of the air inlet will also contact the abutment ring inserted inside the connecting pipe. When the vacuum cleaner is working, the abutment ring between the air inlet and the second sealing ring will be squeezed and deformed, which can fill the gap between the two. The first sealing ring can also fill the gap between the connecting pipe and the air inlet. Since the fit between the annular protrusion and the connecting pipe is an interference fit, when the connecting pipe is put on the outside of the annular protrusion, the annular protrusion will be squeezed and deformed, thereby achieving complete fit with the inner surface of the connecting pipe. Even if the first sealing ring and the abutment ring are damaged or lost, the annular protrusion can still achieve sealing.

[0016] (2) By setting a clamping component, the connecting tube is twisted counterclockwise and the connecting sleeve outside the connecting tube will be respectively fitted on the two hook plates. When the switch is turned on, the power supply circuit and the electromagnet will form a circuit. When the vacuum cleaner is powered on and started, the electromagnet will also start at the same time to generate suction. The iron block will be attracted to move closer to the electromagnet along the mounting ring. The iron block will pull the connecting sleeve and the connecting tube closer to the mounting base through the hook plate. At this time, the pressure on the sealing ring and the abutment ring increases, and the deformation of the two is greater, which can further improve the sealing effect and ensure the stability of the connecting tube. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model; Figure 2 This is a schematic diagram of the overall second-view structure of this utility model; Figure 3 This is a partially enlarged structural diagram of the sealing component of this utility model; Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle; In the diagram: 1. Vacuum cleaner chassis; 2. Mounting base; 3. Connecting pipe; 4. Sealing assembly; 5. Clamping assembly; 401. Air inlet; 402. Sealing ring one; 403. Sealing ring two; 404. Abutment ring; 405. Annular protrusion; 406. Protective sleeve; 501. Mounting ring; 502. Hook plate; 503. Connecting sleeve; 504. Iron block; 505. Electromagnet; 506. Switch. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] This utility model provides a technical solution: such as Figure 2 and Figure 3 As shown, in this embodiment, a vacuum cleaner interface assembly with good sealing performance includes a vacuum cleaner housing 1 and a connecting pipe 3. A horizontally arranged mounting base 2 is fixedly connected to the upper part of the outer circumference of the vacuum cleaner housing 1. The connecting pipe 3 is located directly opposite the mounting base 2. The mounting base 2 and the connecting pipe 3 are equipped with the same sealing component 4. The sealing component 4 includes an air inlet 401 fixedly connected to the outer wall of one side of the mounting base 2. The air inlet 401 is connected to the mounting base 2, and a sealing seal is slidably sleeved on the outside of the air inlet 401. A sealing ring 402 is provided. The connecting pipe 3 is slidably sleeved on the outside of the air intake port 401. A vertically arranged sealing ring 403 is fixedly connected to the inner circumference of the connecting pipe 3. An abutment ring 404 is slidably inserted inside the connecting pipe 3. When the end of the air intake port 401 and the abutment ring 404 are in contact, the end of the connecting pipe 3 will also be in contact with the sealing ring 402. Several equally spaced annular protrusions 405 are fixedly connected to the outer circumference of the air intake port 401, and the annular protrusions 405 and the connecting pipe 3 are interference fit.

[0020] A protective sleeve 406 is coaxially fixed to one side of the outer wall of the sealing ring 402. The protective sleeve 406 surrounds the outside of the connecting pipe 3 and can protect the connecting pipe 3 and the air inlet 401.

[0021] The end of the connecting tube 3 is grasped and fitted onto the outside of the air inlet 401. The annular protrusion 405 on the outside of the air inlet 401 will also fit against the inner wall of the connecting tube 3. Subsequently, the end of the connecting tube 3 contacts and is pressed against the sealing ring 402, while the end of the air inlet 401 also contacts the abutment ring 404 inserted inside the connecting tube 3. When the vacuum cleaner is working, the abutment ring 404 between the air inlet 401 and the sealing ring 403 is compressed and deformed, thus filling the gap between them. The sealing ring 402 can also fill the gap at the contact part between the connecting tube 3 and the air inlet 401. Since the fit between the annular protrusion 405 and the connecting tube 3 is an interference fit... Therefore, when the connecting tube 3 is sleeved on the outside of the annular protrusion 405, the annular protrusion 405 will be squeezed and deformed under force, thereby achieving complete fit with the inner surface of the connecting tube 3. Even if the sealing ring 402 and the abutment ring 404 are damaged or lost, the annular protrusion 405 can still achieve a seal. Specifically, even if the suction force generated by the vacuum cleaner during operation breaks through the annular protrusion 405 near the opening of the air inlet 401, the subsequent annular protrusion 405 can continue to play a role. Moreover, since the gap created by the suction force of the previous annular protrusion 405 is smaller, the suction force borne by the subsequent annular protrusion 405 will be relatively smaller, making it more difficult to break through the subsequent protection.

[0022] like Figure 2 and Figure 4 As shown, the same clamping assembly 5 is installed between the mounting base 2 and the connecting pipe 3. The clamping assembly 5 includes two connecting sleeves 503 fixedly connected to the outer wall of the circumference of the connecting pipe 3, and the openings of the two connecting sleeves 503 are arranged in opposite directions. Two parallel mounting rings 501 are fixedly connected to the outer wall of the mounting base 2 near the connecting pipe 3. A hook plate 502 is slidably inserted into the inside of each of the two mounting rings 501, and the two hook plates 502 are slidably inserted into the inside of the two connecting sleeves 503 respectively.

[0023] An electromagnet 505 is fixedly installed on the inner wall of each of the two mounting rings 501 near the mounting base 2. An iron block 504 is fixedly connected to one end of each of the two hook plates 502 near the mounting base 2. The two iron blocks 504 are respectively facing the two electromagnets 505.

[0024] A switch 506 is fixedly installed on the top outer wall of the mounting base 2. The switch 506 is electrically connected to the circuit part of the vacuum cleaner power supply system that controls the on and off of the electromagnet 505 through a wire.

[0025] After the insertion is completed, the connecting tube 3 is turned counterclockwise. The connecting sleeve 503 outside the connecting tube 3 will be respectively fitted onto the two hook plates 502. The switch 506 is turned on to make the power supply circuit and the electromagnet 505 form a circuit. When the vacuum cleaner is powered on and started, the electromagnet 505 will also start at the same time to generate suction. The iron block 504 will be attracted to move closer to the electromagnet 505 along the mounting ring 501. The iron block 504 pulls the connecting sleeve 503 and the connecting tube 3 closer to the mounting base 2 through the hook plate 502. At this time, the pressure on the sealing ring 402 and the abutment ring 404 increases, and the deformation of the two is greater, which can further improve the sealing effect and ensure the stability of the connecting tube 3.

[0026] like Figure 4 As shown, the hook plate 502 has arc-shaped edges at the end corners near the connecting sleeve 503 and at the corners of the internal slot of the connecting sleeve 503, making it easier to insert the hook plate 502 into the connecting sleeve 503.

[0027] like Figure 3 As shown, several annular protrusions 405 are made of thermoplastic polyurethane material, which is relatively soft, can be easily bent or compressed, has excellent surface wear resistance, high tear strength, and is not easy to fray or break even with repeated friction.

[0028] This utility model provides a vacuum cleaner interface assembly with good sealing performance. The specific working principle is as follows: When the device is working, the end of the connecting pipe 3 is grasped and placed outside the air inlet 401. The annular protrusion 405 on the outside of the air inlet 401 will also fit against the inner wall of the connecting pipe 3. Then, the end of the connecting pipe 3 contacts and is pressed against the sealing ring 402, while the end of the air inlet 401 also contacts the abutment ring 404 inserted inside the connecting pipe 3. When the vacuum cleaner is working, the abutment ring 404 between the air inlet 401 and the sealing ring 403 is compressed and deformed, thus filling the gap between them. The sealing ring 402 can also fill the gap between the connecting pipe 3 and the air inlet 401. Due to the way the annular protrusion 405 and the connecting pipe 3 cooperate... To achieve an interference fit, when the connecting tube 3 is fitted over the annular protrusion 405, the annular protrusion 405 will be compressed and deformed under force, thereby achieving a complete fit with the inner surface of the connecting tube 3. Even if the sealing ring 402 and the abutment ring 404 are damaged or lost, the annular protrusion 405 can still achieve a seal. Specifically, even if the suction force generated by the vacuum cleaner during operation breaks through the annular protrusion 405 near the opening of the air inlet 401, the subsequent annular protrusion 405 can continue to play a role. Furthermore, since the gap created by the suction force of the previous annular protrusion 405 is smaller, the suction force borne by the subsequent annular protrusion 405 will be relatively smaller, making it more difficult to break through the subsequent protection.

[0029] After the insertion is completed, the connecting tube 3 is turned counterclockwise. The connecting sleeve 503 outside the connecting tube 3 will be respectively fitted onto the two hook plates 502. The switch 506 is turned on to make the power supply circuit and the electromagnet 505 form a circuit. When the vacuum cleaner is powered on and started, the electromagnet 505 will also start at the same time to generate suction. The iron block 504 will be attracted to move closer to the electromagnet 505 along the mounting ring 501. The iron block 504 pulls the connecting sleeve 503 and the connecting tube 3 closer to the mounting base 2 through the hook plate 502. At this time, the pressure on the sealing ring 402 and the abutment ring 404 increases, and the deformation of the two is greater, which can further improve the sealing effect and ensure the stability of the connecting tube 3.

[0030] 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 vacuum cleaner interface assembly with good sealing performance, comprising a vacuum cleaner housing (1) and a connecting pipe (3), characterized in that: A horizontally mounted mounting base (2) is fixedly connected to the upper part of the outer circumference of the vacuum cleaner housing (1). The connecting pipe (3) is located directly opposite the mounting base (2). The mounting base (2) and the connecting pipe (3) are equipped with the same sealing component (4). The sealing component (4) includes an air inlet (401) fixedly connected to the outer wall of one side of the mounting base (2). The air inlet (401) is connected to the mounting base (2). A sealing ring (402) is slidably sleeved on the outside of the air inlet (401). The connecting pipe (3) is slidably sleeved on the sealing ring (402). Outside the air intake port (401), a vertically arranged sealing ring two (403) is fixedly connected to the inner circumference of the connecting pipe (3). An abutment ring (404) is slidably inserted inside the connecting pipe (3). When the end of the air intake port (401) and the abutment ring (404) are in contact, the end of the connecting pipe (3) will also be in contact with the sealing ring one (402). Several equally spaced annular protrusions (405) are fixedly connected to the outer circumference of the air intake port (401), and the annular protrusions (405) and the connecting pipe (3) are in an interference fit.

2. The vacuum cleaner interface assembly with good sealing performance according to claim 1, characterized in that: A protective sleeve (406) is coaxially fixed to one side of the outer wall of the sealing ring (402), and the protective sleeve (406) surrounds the outside of the connecting pipe (3).

3. The vacuum cleaner interface assembly with good sealing performance according to claim 1, characterized in that: The same clamping assembly (5) is installed between the mounting base (2) and the connecting pipe (3). The clamping assembly (5) includes two connecting sleeves (503) fixedly connected to the outer wall of the circumference of the connecting pipe (3), and the openings of the two connecting sleeves (503) are arranged in opposite directions. Two parallel mounting rings (501) are fixedly connected to the outer wall of the mounting base (2) near the connecting pipe (3). A hook plate (502) is slidably inserted into the interior of each of the two mounting rings (501), and the two hook plates (502) are slidably inserted into the interiors of the two connecting sleeves (503).

4. The vacuum cleaner interface assembly with good sealing performance according to claim 3, characterized in that: An electromagnet (505) is fixedly installed on the inner wall of each of the two mounting rings (501) near the mounting base (2), and an iron block (504) is fixedly connected to one end of each of the two hook plates (502) near the mounting base (2), with the two iron blocks (504) facing the two electromagnets (505) respectively.

5. A vacuum cleaner interface assembly with good sealing performance according to claim 1, characterized in that: A switch (506) is fixedly installed on the top outer wall of the mounting base (2). The switch (506) is electrically connected to the circuit part that controls the on / off state of the electromagnet (505) in the power supply system of the vacuum cleaner through a wire.

6. A vacuum cleaner interface assembly with good sealing performance according to claim 3, characterized in that: The hook plate (502) has arc-shaped edges near the end corner of the connecting sleeve (503) and the inside corner of the slot of the connecting sleeve (503).

7. A vacuum cleaner interface assembly with good sealing performance according to claim 1, characterized in that: Several of the aforementioned annular protrusions (405) are made of thermoplastic polyurethane material.

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