Dust collecting cup device of dust collector

Abstract

The invention discloses a dust collector dust collection cup device which comprises a main machine body and a dust collection cup body, the main machine body is coaxially arranged on the inner periphery of the dust collection cup body in a sleeved mode, the main machine body is provided with an air inlet dust filtering piece, and the main machine body and the dust collection cup body are detachably combined together through a quick-release assembly. The dust collection cup has the beneficial effects that the main machine body and the dust collection cup body can be quickly combined together in the mode that the matching insertion rod of the quick-release assembly is coaxially matched with the inner cover sleeve and the mounting bin is combined with the opening and closing mechanism at the bottom end of the matching insertion rod; meanwhile, the opening and closing mechanism at the bottom end of the mounting bin and the opening and closing mechanism at the bottom end of the matched insertion rod can be separated by pressing a handle knob position with one hand, and then the inner cover sleeve can axially slide along the matched insertion rod in an outward pulling mode and is separated from the matched insertion rod, so that the main machine body and the dust collection cup body can be rapidly separated; the combination and disassembly mode of the main machine body and the dust collection cup body is simple and easy to achieve.

Description

Technical Field

[0001] The present invention relates to the field of vacuum cleaner auxiliary components, and in particular to a dust cup device for a vacuum cleaner. Background Art

[0002] When the vacuum cleaner is used daily, the suction motor will generate negative pressure suction, and the dust-laden gas will be sucked into the dust cup through the floor brush and / or straight pipe, so that the dust will be retained in the dust cup by filtering. However, in the prior art, the dust cup of the vacuum cleaner is relatively large in diameter (usually more than 10 cm in diameter) and needs to be frequently removed and installed, so it is difficult to lock and open and close it with the main unit. For example, the most common dust cup now has two spring buckles on both sides of the upper part of the dust cup, but it is not convenient to open and close it when operated with one hand, and the spring buckles are easily contaminated and dirty during the process of dumping dust, which makes it unhygienic when the fingers touch the spring buckles. Summary of the Invention

[0003] The purpose of the present invention is to provide a dust cup device for a vacuum cleaner in order to solve the above problems, as described below.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] The present invention provides a dust cup device for a vacuum cleaner, comprising a main body and a dust cup body, wherein the main body is coaxially sleeved on the inner periphery of the dust cup body, and the main body is provided with an air intake dust filter, for allowing dust to enter and be retained and collected in the dust cup body by means of the air intake dust filter;

[0006] The main body and the dust cup body are detachably assembled together through a quick-release assembly, so that the dust cup body can be quickly assembled with the main body to collect dust and quickly separated and then dumped for cleaning;

[0007] The joint positions of the main body and the top and the inside of the dust cup body are both provided with blocking seals, so as to tightly seal the joint positions of the top and the inside when the main body and the dust cup body are in a combined state.

[0008] Preferably, the air intake dust filter is specifically that an air intake channel and an air outlet channel are respectively opened on both sides of the top of the main body, and the lower ends of the air intake channel and the air outlet channel are connected to the internal space of the dust cup body, and at the same time, the lower end of the air outlet channel is sealed and installed with a dust filter net to prevent dust from passing through.

[0009] Preferably, the air inlet channel and the air outlet channel are both arc-shaped channels and are symmetrically distributed. Meanwhile, the lower ends of the air inlet channel and the air outlet channel are both horizontal and face away from each other.

[0010] Preferably, the dust filter is a fine stainless steel filter, and the dust cup body is a transparent plastic part or a translucent plastic part.

[0011] Preferably, the quick-release assembly is specifically that the interior of the dust cup body is vertically fixedly configured with an inner cover sleeve, the bottom surface of the dust cup body is fixedly configured with an installation bin, the inner cover sleeve and the installation bin are coaxial with the center of the dust cup body, and the inner cover sleeve and the installation bin are connected to each other, the bottom of the main body is vertically fixedly configured with a mating rod, and the mating rod is inserted into the inner cover sleeve in a coaxial sliding fit, the interior of the installation bin and the bottom of the mating rod are combined with an opening and closing mechanism that can be repeatedly combined and separated with each other, so as to achieve locking and unlocking of the combined state of the main body and the dust cup body with the help of the opening and closing mechanism.

[0012] Preferably, the opening and closing mechanism is a snap connector or a single-side spring fastener, and the opening and closing mechanism is provided with a knob on the outside of the installation compartment for pressing and unlocking the opening and closing mechanism.

[0013] Preferably, the opening and closing mechanism is a threaded connection.

[0014] Preferably, the sealing seal is specifically at the top combination position of the main body and the dust cup body, the outside of the dust cup body is an outer cover sleeve, the outer cover sleeve is coaxial with the main body and the inner cover sleeve, and the mounting bin is fixedly configured at the bottom of the outer cover sleeve, the top of the main body is coaxially extended and fixedly connected with a sealing upper cover, and when the main body and the dust cup body are combined in place, the sealing upper cover is coaxially pressed and sealed on the top of the outer cover sleeve.

[0015] Preferably, a sealing ring is provided on the outer lower portion of the sealing cover, and when the main body and the dust cup body are combined in place, the sealing ring is elastically pressed against the top of the outer cover, so as to use the sealing ring to perform circumferential sealing on the top joint position of the sealing cover and the outer cover.

[0016] Preferably, at the internal joining position of the main body and the dust cup body, the top outer periphery of the mating rod is combined with a sealing ring 2, and when the main body and the dust cup body are combined in place, the sealing ring 2 is elastically pressed against the top end of the inner cover sleeve to perform circumferential sealing on the top joining position of the mating rod and the inner cover sleeve with the help of the sealing ring 1.

[0017] The above-mentioned dust cup device of the vacuum cleaner is adopted. Specifically, in actual use, since the coaxial cooperation of the mating rod of the quick-release assembly and the opening and closing mechanism at the bottom end of the mating rod are combined with each other through the installation bin and the opening and closing mechanism at the bottom end of the mating rod, the main body and the dust cup body can be quickly combined together. The combination of the main body and the dust cup body is simple and easy to implement, and then it is convenient to combine the dust cup body with the main body for collecting dust. Since only one hand is required to press the handle position to separate the installation bin and the opening and closing mechanism at the bottom end of the mating rod, the dust can be collected by pulling outward. The inner cover sleeve is made to slide axially along the mating insertion rod and separate from each other, so that the main body and the dust cup body can be quickly separated. The disassembly method of the main body and the dust cup body is simple and easy to implement, which makes it convenient to clean the dust cup body after the main body and the dust cup body are separated from each other. Moreover, since the separation of the main body and the dust cup body and the backhand dumping cleaning operation of the dust cup body after separation can be completed by pinching the installation bin with one hand, the cleaning method of the dust cup body is simple, easy to operate and clean. Moreover, since the said device is provided at the joint position of the main body and the top of the dust cup body The sealing member is sealed, and then the sealing flange is pressed on the top of the outer cover sleeve and the sealing ring is elastically compressed, so that when the main body and the dust cup body are in the combined state, a tight seal can be achieved on the top joint position, ensuring that dust is retained in the dust cup body and does not leak out through the top joint position. At the same time, since the main body is provided with the air intake filter, the air intake channel and the air outlet channel of the air intake filter can respectively allow dust-laden gas to enter the interior of the dust cup body and discharge the dust-removed gas to the outside, and at the same time, the dust filter at the lower end of the air outlet channel can remove dust-laden gas. The dust, hair and other dirt carried by the body are retained in the dust cup body to complete the dirt collection. The method of retaining and collecting dust and other dirt in the dust cup body is simple and easy to implement, which is convenient for dust removal and purification of dust-laden gas and retention and collection of dust and other dirt. Since the air inlet channel and the air outlet channel are both arc channels and the lower ends of the two are horizontal and back to back to each other, it is ensured that the dust-laden gas will not directly blow against the inner bottom of the dust cup body during the process of entering the dust cup body, causing the dust to be blown up again, and at the same time, the contact amount of the dust filter of the air outlet channel with the dust particles retained in the dust cup body during dust filtering is reduced.

[0018] The beneficial effects are as follows: 1. The present invention can quickly assemble the main body and the dust cup body by coaxially cooperating the mating rod of the quick-release assembly with the inner cover sleeve and combining the mounting chamber and the opening and closing mechanism at the bottom end of the mating rod. The assembly of the main body and the dust cup body is simple and easy to implement, and then the dust cup body and the main body are conveniently assembled for dust collection and use.

[0019] 2. Simply press the knob with one hand to separate the installation compartment and the opening and closing mechanism at the bottom of the mating rod. Then, pull the inner cover outward to slide along the axial direction of the mating rod and separate them. This allows the main unit and the dust cup to be quickly separated. The separation of the main unit and the dust cup is simple and easy to achieve, making it easy to clean the dust cup after the main unit and the dust cup are separated.

[0020] 3. Since the main unit and the dust cup can be separated by pinching the installation compartment with one hand, and the dust cup can be dumped out for cleaning after separation, the cleaning method of the dust cup is simple, easy to operate and clean;

[0021] 4. A sealing member is provided at the joint between the main unit and the top of the dust cup. With the sealing flange pressed against the top of the outer cover and the sealing ring elastically compressed, a tight seal can be achieved at the top joint when the main unit and the dust cup are in the assembled state, ensuring that dust is retained in the dust cup and does not leak out through the top joint.

[0022] 5. The main body is provided with an air intake dust filter, and the air intake channel and air outlet channel of the air intake dust filter can respectively allow the dust-laden gas to enter the interior of the dust cup body and discharge the dust-removed gas outward. At the same time, the dust filter at the lower end of the air outlet channel can retain the dust, hair and other dirt carried by the dust-laden gas in the dust cup body to complete the dirt collection. The method of retaining and collecting dust and other dirt in the dust cup body is simple and easy to implement, which is convenient for dust removal and purification of the dust-laden gas and retention and collection of dust and other dirt.

[0023] 6. Both the air inlet channel and the air outlet channel are arc channels and their lower ends are horizontal and facing each other, which ensures that the dust-laden gas will not directly blow into the inner bottom of the dust cup body during the process of entering the dust cup body, causing the dust to be blown up again. At the same time, it also reduces the contact amount between the dust filter of the air outlet channel and the dust particles retained in the dust cup body during dust filtering. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is the overall axonometric diagram of the present invention in the open state Figure 1 ;

[0026] Figure 2 This is the overall axonometric diagram of the present invention in the open state Figure 2 ;

[0027] Figure 3 This invention Figure 1 Schematic diagram of the host body;

[0028] Figure 4 This invention Figure 1 Schematic diagram of the dust cup body;

[0029] Figure 5 This invention Figure 1 The main external view of

[0030] Figure 6 This invention Figure 1 The main interior view of

[0031] Figure 7 This invention Figure 1 Schematic diagram of the left side;

[0032] Figure 8 This invention Figure 1 Schematic diagram of the right side;

[0033] Figure 9 This invention Figure 1 Schematic top view of

[0034] Figure 10 This is the overall axonometric diagram of the present invention in the combined state Figure 1 ;

[0035] Figure 11 This is the overall axonometric diagram of the present invention in the combined state Figure 2 ;

[0036] Figure 12 This invention Figure 10 The main external view of

[0037] Figure 13 This invention Figure 10 Main interior view.

[0038] The following are the descriptions of the reference numerals:

[0039] 1. Sealing seal; 101. Sealing cover; 102. Sealing ring 1; 103. Outer cover; 104. Sealing ring 2; 2. Main unit; 3. Quick-release assembly; 301. Mating rod; 302. Mounting compartment; 303. Knob; 304. Inner cover; 305. Opening and closing mechanism; 4. Dust cup; 5. Inlet dust filter; 501. Dust filter; 502. Air outlet duct; 503. Air inlet duct. DETAILED DESCRIPTION

[0040] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0041] See also Figures 1-13 As shown, the present invention provides a dust cup device of a vacuum cleaner, including a main body 2 and a dust cup body 4. The main body 2 is coaxially sleeved on the inner periphery of the dust cup body 4, and the main body 2 is provided with an air intake dust filter 5, which is used to allow dust to enter and be retained and collected in the dust cup body 4 with the help of the air intake dust filter 5. Specifically, the air intake dust filter 5 is specifically that an air intake channel 503 and an air outlet channel 502 are respectively opened on both sides of the top of the main body 2, and the lower ends of the air intake channel 503 and the air outlet channel 502 are both connected to the internal space of the dust cup body 4. At the same time, the lower end of the air outlet channel 502 is sealed and installed with a dust filter 501 to prevent dust from passing through. The purpose of this arrangement is, first, to allow the dust-laden gas to enter the dust cup body 4 and to discharge the dust-removed gas to the outside with the help of the air inlet channel 503 and the air outlet channel 502 of the air inlet dust filter 5, and at the same time, to allow the dust, hair and other dirt carried by the dust-laden gas to be retained in the dust cup body 4 with the help of the dust filter 501 at the lower end of the air outlet channel 502 to complete the dirt collection. The method of retaining and collecting dust and other dirt in the dust cup body 4 is simple and easy to achieve.

[0042] See also Figures 1-13As shown, the main body 2 and the dust cup body 4 are detachably assembled together through a quick-release assembly 3, so that the dust cup body 4 can be quickly assembled with the main body 2 to collect dust and quickly separated and dumped for cleaning. Specifically, the quick-release assembly 3 is that the interior of the dust cup body 4 is vertically fixedly configured with an inner cover sleeve 304, and the bottom surface of the dust cup body 4 is fixedly configured with a mounting chamber 302. The inner cover sleeve 304 and the mounting chamber 302 are both coaxial with the center of the dust cup body 4, and the inner cover sleeve 304 and the mounting chamber 302 are connected to each other. The bottom of the main body 2 is vertically fixedly configured with a matching insertion rod 301, and the matching insertion rod 301 is inserted into the inner cover sleeve 304 in a coaxial sliding fit. The interior of the mounting chamber 302 and the bottom combination of the matching rod are installed with an opening and closing mechanism 305 that can be repeatedly combined and separated with each other. The closure 302 and the dust collecting cup 4 can be quickly assembled together by coaxially cooperating the mating rod 301 of the quick-release assembly 3 and the inner cover 304, and the mounting chamber 302 and the opening and closing mechanism 305 at the bottom of the mating rod 301 can be combined with each other. At the same time, only one hand is required to press the knob 303 to separate the mounting chamber 302 and the opening and closing mechanism 305 at the bottom of the mating rod 301. Then, the inner cover 304 can be pulled outward to slide axially along the mating rod 301 and separate from each other, so that the main body 2 and the dust collecting cup 4 can be quickly separated. The combination and disassembly of the main body 2 and the dust collecting cup 4 are simple and easy to achieve.

[0043] See also Figures 1-9 As shown, the top and inner joint positions of the main body 2 and the dust cup body 4 are both provided with blocking seals 1, which are used to tightly seal the top and inner joint positions when the main body 2 and the dust cup body 4 are in the combined state. Specifically, the blocking seal 1 is that the outside of the dust cup body 4 is an outer cover sleeve 103, and the outer cover sleeve 103 is coaxial with the main body 2 and the inner cover sleeve 304, and the mounting bin 302 is fixedly configured at the bottom of the outer cover sleeve 103, and the top of the main body 2 is coaxially and externally fixedly connected with a blocking upper cover 101, and when the main body 2 and the dust cup body 4 are combined in place, the blocking upper cover 101 is coaxially pressed and sealed on the top of the outer cover sleeve 103. The reason for this arrangement is that by means of the blocking flange pressing on the top of the outer cover sleeve 103, the top joint position can be tightly sealed when the main body 2 and the dust cup body 4 are in the combined state, ensuring that dust is retained in the dust cup body 4 and does not leak out through the top joint position.

[0044] See also Figures 1-13As shown, the following optimizations have been made to the present application. Specifically, with respect to the air inlet dust filter 5, the air inlet channel 503 and the air outlet channel 502 are both arc-shaped channels and are symmetrically distributed. At the same time, the lower ends of the air inlet channel 503 and the air outlet channel 502 are both horizontal and face each other. With this arrangement, the dust-laden gas will be blown directly to the inner surface of the dust cup body 4 when entering through the air inlet channel 503 and being discharged from the lower end, thereby reducing the amount of dust blown up at the bottom of the dust cup body 4. At the same time, when the air outlet channel 502 inhales air, it can also reduce the amount of dust sucked up at the bottom of the dust cup body 4 by means of horizontal suction. This ensures that the dust-laden gas will not be blown directly to the inner bottom of the dust cup body 4 during the process of entering the dust cup body 4, causing the dust to be blown up again. At the same time, it also reduces the amount of contact between the dust filter net 501 of the air outlet channel 502 and the dust particles retained in the dust cup body 4 during dust filtering. Further optionally, the dust filter 501 is a fine stainless steel filter, and the dust cup body 4 is a transparent plastic part or a translucent plastic part. Such an arrangement first facilitates the dust filter 501 to have a good dust filtering effect, and at the same time facilitates the direct observation of the amount of dirt collected inside through the dust cup body 4, so as to facilitate timely cleaning of the dust cup body 4.

[0045] See also Figures 1-13 As shown, specifically with respect to the quick-release assembly 3, the opening and closing mechanism 305 is a snap-fit ​​connection or a single-side spring-loaded connection, and the opening and closing mechanism 305 is provided with a knob 303 on the outside of the mounting chamber 302 for pressing and unlocking the opening and closing mechanism 305. This arrangement facilitates the selection of the opening and closing mechanism 305 based on existing components, facilitating bulk purchase by manufacturers. Furthermore, if these two components are used as the opening and closing mechanism 305, the knob 303 can also be provided on the outside of the mounting chamber 302 to smoothly achieve the assembly and disassembly operations of the opening and closing mechanism 305. Alternatively, the opening and closing mechanism 305 can be a threaded connection. In this arrangement, the assembly and disassembly operations of the opening and closing mechanism 305 can also be achieved by twisting, thereby facilitating the assembly and disassembly operations of the dust cup body 4 and the main body 2 by holding the mounting chamber 302 and twisting.

[0046] See also Figures 1-13As shown, the specific methods for sealing the several joint positions involved in the scheme are as follows. First, specifically to the top joint position of the sealing upper cover 101 and the outer cover sleeve 103, the outer lower part of the sealing upper cover 101 is sleeved with a sealing ring 102, and when the main body 2 and the dust cup body 4 are combined in place, the sealing ring 102 is elastically pressed against the top of the outer cover sleeve 103. In this way, with the help of the sealing ring 102, the top joint position of the sealing upper cover 101 and the outer cover sleeve 103 can be sealed circumferentially, thereby preventing dust from entering the inner cover sleeve 304 through the top joint position of the mating rod 301 and the inner cover sleeve 304, and avoiding dust from dirtying the inner cover sleeve 304 and the opening and closing mechanism 305. Specifically, at the top joint position of the mating rod 301 and the inner cover sleeve 304, the top outer sleeve of the mating rod 301 is combined with a sealing ring 2 104, and when the main body 2 and the dust cup body 4 are combined in place, the sealing ring 2 104 is elastically pressed against the top of the inner cover sleeve 304. In this way, the sealing ring 102 can be used to perform a circumferential seal on the top joint position of the mating rod 301 and the inner cover sleeve 304, so as to ensure that dust is retained in the dust cup body 4 and does not leak out through the top joint position.

[0047] With the above structure, specifically in actual use, since the coaxial cooperation of the mating rod 301 and the inner cover sleeve 304 of the quick-release assembly 3 and the combination of the mounting chamber 302 and the opening and closing mechanism 305 at the bottom end of the mating rod 301 can make the host body 2 and the dust cup body 4 quickly assembled together, the assembly method of the host body 2 and the dust cup body 4 is simple and easy to implement, and then it is convenient to combine the dust cup body 4 with the host body 2 for collecting dust, and since only one hand is required to press the knob position 303 to separate the mounting chamber 302 and the opening and closing mechanism 305 at the bottom end of the mating rod 301, the dust cup body 4 can be opened and closed by pulling outward. The inner cover 304 slides axially along the mating insertion rod 301 and separates from each other, so that the main body 2 and the dust cup body 4 can be quickly separated. The disassembly method of the main body 2 and the dust cup body 4 is simple and easy to implement, which makes it convenient to clean the dust cup body 4 after the main body 2 and the dust cup body 4 are separated from each other. Moreover, the main body 2 and the dust cup body 4 can be separated and the dust cup body 4 can be cleaned by backhand dumping by pinching the installation bin 302 with one hand. Therefore, the cleaning method of the dust cup body 4 is simple, easy to operate and clean. Moreover, a sealing seal 1 is provided at the joint position of the main body 2 and the top of the dust cup body 4. By means of the sealing flange being pressed on the top of the outer cover sleeve 103 and the sealing ring 102 being elastically compressed, a tight seal can be achieved on the top joint position when the main body 2 and the dust cup body 4 are in the combined state, ensuring that the dust is retained in the dust cup body 4 and does not leak out through the top joint position. At the same time, since the main body 2 is provided with an air intake filter 5, the air intake channel 503 and the air outlet channel 502 of the air intake filter 5 can respectively allow the dust-laden gas to enter the interior of the dust cup body 4 and discharge the dust-removed gas to the outside, and at the same time, the dust filter 501 at the lower end of the air outlet channel 502 can remove the dust carried by the dust-laden gas. Dust, hair and other dirt are retained in the dust cup body 4 to complete the dirt collection. The method of retaining and collecting dust and other dirt in the dust cup body 4 is simple and easy to implement, which is convenient for dust removal and purification of dust-laden gas and retention and collection of dust and other dirt. Since the air inlet channel 503 and the air outlet channel 502 are both arc channels and the lower ends of the two are horizontal and back to back to each other, it ensures that the dust-laden gas will not directly blow into the inner bottom of the dust cup body 4 during the process of entering the dust cup body 4, causing the dust to be blown up again. At the same time, it also reduces the contact amount of the dust filter 501 of the air outlet channel 502 with the dust particles retained in the dust cup body 4 during dust filtering.

[0048] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A dust cup device for a vacuum cleaner, comprising a main body (2) and a dust cup body (4), characterized in that: The host body (2) is coaxially sleeved on the inner periphery of the dust cup body (4), and the host body (2) is provided with an air intake dust filter (5) for allowing dust to enter and be retained and collected in the dust cup body (4) by means of the air intake dust filter (5); The host body (2) and the dust cup body (4) are detachably assembled together via a quick-release assembly (3), so that the dust cup body (4) can be quickly assembled with the host body (2) to collect dust and quickly separated and then dumped for cleaning; The top and inner joint positions of the main unit body (2) and the dust cup body (4) are both provided with blocking seals (1) for tightly sealing the top and inner joint positions when the main unit body (2) and the dust cup body (4) are in a combined state.

2. A dust cup device for a vacuum cleaner according to claim 1, characterized in that: Specifically, the air intake dust filter (5) is provided with an air intake channel (503) and an air outlet channel (502) on both sides of the top of the main body (2), and the lower ends of the air intake channel (503) and the air outlet channel (502) are connected to the internal space of the dust cup body (4), and the lower end of the air outlet channel (502) is blocked and installed with a dust filter (501) to prevent dust from passing through.

3. The dust cup device of a vacuum cleaner according to claim 2, characterized in that: The air inlet channel (503) and the air outlet channel (502) are both arc-shaped channels and are symmetrically distributed. Meanwhile, the lower ends of the air inlet channel (503) and the air outlet channel (502) are both horizontal and face away from each other.

4. A dust cup device for a vacuum cleaner according to claim 3, characterized in that: The dust filter (501) is a fine stainless steel filter, and the dust cup body (4) is a transparent plastic part or a translucent plastic part.

5. A dust cup device for a vacuum cleaner according to any one of claims 1 to 4, characterized in that: The quick-release assembly (3) is specifically configured such that the interior of the dust cup body (4) is vertically fixedly provided with an inner cover (304), the bottom surface of the dust cup body (4) is fixedly provided with a mounting chamber (302), the inner cover (304) and the mounting chamber (302) are both coaxial with the center of the dust cup body (4), and the inner cover (304) and the mounting chamber (302) are communicated with each other, the bottom of the host body (2) is vertically fixedly provided with a matching rod (301), and the matching rod (301) is inserted into the inner cover (304) in a coaxial sliding manner, and an opening and closing mechanism (305) that can be repeatedly combined and separated with each other is installed in the interior of the mounting chamber (302) and the bottom of the matching rod, so as to realize locking and unlocking of the combined state of the host body (2) and the dust cup body (4) by means of the opening and closing mechanism (305).

6. The dust cup device of a vacuum cleaner according to claim 5, characterized in that: The opening and closing mechanism (305) is a snap-fit ​​connector or a single-side spring fastener, and the opening and closing mechanism (305) is provided with a knob (303) outside the installation compartment (302) for pressing and unlocking the opening and closing mechanism (305).

7. The dust cup device of a vacuum cleaner according to claim 5, characterized in that: The opening and closing mechanism (305) is a threaded connection.

8. A dust cup device for a vacuum cleaner according to claim 6 or 7, characterized in that: The blocking seal (1) is specifically located at the top joint position of the main body (2) and the dust cup body (4), the outside of the dust cup body (4) is an outer cover (103), the outer cover (103) is coaxial with the main body (2) and the inner cover (304), and the mounting bin (302) is fixedly configured at the bottom of the outer cover (103), the top of the main body (2) is coaxially and externally fixedly connected with a blocking cover (101), and when the main body (2) and the dust cup body (4) are combined in place, the blocking cover (101) is coaxially pressed and sealed on the top of the outer cover (103).

9. The dust cup device of a vacuum cleaner according to claim 8, characterized in that: The lower outer portion of the sealing cover (101) is provided with a sealing ring (102), and when the main body (2) and the dust cup body (4) are assembled in place, the sealing ring (102) is elastically pressed against the top of the outer cover (103), so as to use the sealing ring (102) to perform a circumferential sealing on the top joint position of the sealing cover (101) and the outer cover (103).

10. The dust cup device of a vacuum cleaner according to claim 9, characterized in that: At the internal connection position between the main body (2) and the dust cup body (4), the top outer periphery of the mating rod (301) is combined with a second sealing ring (104), and when the main body (2) and the dust cup body (4) are combined in place, the second sealing ring (104) is elastically pressed against the top of the inner cover (304), so as to perform a circumferential sealing on the top connection position between the mating rod (301) and the inner cover (304) with the help of the first sealing ring (102).

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