Cover and filter cartridge mounting structure

Abstract

The utility model discloses a cover and filter cartridge mounting structure, belongs to dust collector assembly structures, and aims to solve the problems of high manufacturing cost and poor universality caused by the fact that the conventional dust collectors with different specifications and models need to be provided with special filter cartridges and mounting structures. The outer wall of the cover body is provided with a positioning edge, the cover body is internally provided with a partition wall extending in the radial direction, the cover body is axially provided with a first cylindrical section and a second cylindrical section which are opposite in direction, and the first cylindrical section is provided with a first connecting thread; the rotating piece rotatably penetrates through the isolation wall in a sealed mode, and the rotating piece is provided with an operation part located in the first cylindrical section and a second connecting thread facing the interior of the second cylindrical section. The first cylindrical section and the first connecting thread or the second cylindrical section and the second connecting thread of the cover body can be used for assembling the filter cartridge, so that the cover is suitable for dust collectors of different specifications and models, the manufacturing cost is reduced, and the universality is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dust collector assembly structure, specifically relates to a lid and filter cartridge mounting structure for dust collector. BACKGROUND

[0002] Dust collector relies on air suction fan to suck dust, and separates dust and sundries from air suction fan by filter cartridge. The filter cartridges of different specifications and models of existing dust collectors are different, and the mounting structures of filter cartridges are also different. When assembling in factory, special filter cartridges and mounting structures need to be configured for different specifications and models of dust collectors, which is high in manufacturing cost and poor in universality. CONTENT OF UTILITY MODEL

[0003] The utility model solves the technical problems and technical tasks to overcome the defects of high manufacturing cost and poor universality caused by the need of special filter cartridges and mounting structures for different specifications and models of existing dust collectors, and provides a lid and filter cartridge mounting structure to be applicable to different specifications and models of dust collectors, reduce manufacturing cost and increase universality.

[0004] To achieve the above purpose, the lid of the utility model comprises:

[0005] A cover body has a positioning rim on the outer wall, a radial extension isolation wall in the interior, and a first cylindrical section and a second cylindrical section with opposite directions in the axial direction, and the first cylindrical section is configured with a first connecting thread;

[0006] A rotating member is rotatably sealed through the isolation wall, and has an operating part in the first cylindrical section and a second connecting thread towards the second cylindrical section.

[0007] Accordingly, the first cylindrical section and the first connecting thread or the second cylindrical section and the second connecting thread of the cover body can be used to assemble the filter cartridge, so that the lid is suitable for different specifications and models of dust collectors, the manufacturing cost is reduced, and the universality is increased.

[0008] In some embodiments, the first connecting thread is an internal thread provided on the inner wall of the first cylindrical section or an external thread provided on the outer wall of the first cylindrical section. In other embodiments, the second connecting thread is an internal thread blind hole or an external thread column provided on the rotating member. Accordingly, the product structure is enriched.

[0009] Preferably, the rotating member is movably arranged in the axial direction of the isolation wall. When installing the filter cartridge, the rotating member is moved axially as needed to fix the filter cartridge.

[0010] Preferably, a sealing sleeve is arranged on the rotating member, and the isolation wall has a cylindrical surface. The sealing sleeve radially contacts the cylindrical surface to realize sealing within the axial movement range of the rotating member relative to the isolation wall. Accordingly, air and dust leakage at the cover part is avoided.

[0011] Preferably, the isolation wall has an axially extending cylinder portion, the rotating member comprises a body and a limiting sleeve, the body is located in the first cylinder section, the limiting sleeve is located in the second cylinder section and connected with the body through the cylinder portion, the limiting sleeve and the cylinder portion are separately provided with a matched first limiting edge and a second limiting edge, the first limiting edge and the second limiting edge limit the axial movement range of the rotating member relative to the isolation wall. Accordingly, the rotating member and the cover body are kept together and cannot be separated.

[0012] Preferably, in order to simplify the structure, the limiting sleeve and the body are separately provided with a hook and a groove, the hook is hooked in the groove to connect the limiting sleeve and the body. The assembly is reliable.

[0013] Preferably, the isolation wall is provided with a groove on one side of the first cylinder section for accommodating the operating part. The operating part is accommodated in the groove, and the length and volume of the cover can be reduced.

[0014] Preferably, the outer wall of the cover body has a sealing protruding rib. The sealing protruding rib is used to contact the inner wall of the filter cartridge to realize sealing and avoid leakage.

[0015] The filter cartridge mounting structure of the utility model, one kind of structure comprises:

[0016] The support has an axially extending core frame, and the core frame has a third connecting thread;

[0017] The filter cartridge is sleeved on the core frame;

[0018] The cover of the utility model is arranged at the other end of the filter cartridge, the first cylinder section of the cover body extends into the filter cartridge, and the first connecting thread is connected with the third connecting thread to axially limit the filter cartridge between the axial positioning surface and the positioning edge of the cover body.

[0019] The axial positioning surface is arranged on the support. Alternatively, the support is arranged on the upper frame, and the axial positioning surface is arranged on the upper frame.

[0020] Moreover, the core frame has a cylindrical section, and the cylindrical section and the first cylinder section radially position the filter cartridge.

[0021] The filter cartridge mounting structure of the utility model, another kind of structure comprises:

[0022] The support has an axially extending core frame, and the core frame has a third connecting thread;

[0023] The filter cartridge is sleeved on the core frame;

[0024] The cover of the utility model is arranged at the other end of the filter cartridge, the second cylinder section of the cover body extends into the filter cartridge, and the second connecting thread is connected with the third connecting thread to axially limit the filter cartridge between the axial positioning surface and the positioning edge of the cover body.

[0025] The axial positioning surface is arranged on the support. Alternatively, the support is arranged on the upper frame, and the axial positioning surface is arranged on the upper frame.

[0026] Furthermore, the core frame has a cylindrical section, and the cylindrical section and the second tubular section are radially positioned relative to the filter cartridge.

[0027] The above filter cartridge installation structure utilizes the same cover to achieve the installation of the filter cartridge, which reflects the versatility of the cover and reduces the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an axonometric view of the lid of the present invention;

[0029] Figure 2 for Figure 1 an axonometric view of another perspective of the lid shown;

[0030] Figure 3 for Figures 1-2 a schematic diagram of the structure of the lid shown;

[0031] Figure 4 for Figure 3 an axonometric view of another perspective of the structure shown;

[0032] Figure 5 for Figures 1-2 An orthographic diagram of the lid shown;

[0033] Figure 6 for Figure 5 AA section view;

[0034] Figure 7 for Figure 6 Schematic diagram of the rotating member after downward axial movement;

[0035] Figure 8 This is a schematic diagram of the structure decomposition of the embodiment 1 of the filter cartridge installation structure of the present invention;

[0036] Figure 9 for Figure 8 a schematic diagram of another perspective of the structure shown;

[0037] Figure 10 for Figures 8-9 An orthographic schematic diagram of the filter cartridge mounting structure assembled together;

[0038] Figure 11 for Figure 10 BB section view;

[0039] Figure 12 This is a schematic diagram of the structure decomposition of Example 2 of the filter cartridge installation structure of the present invention;

[0040] Figure 13 for Figure 12 a schematic diagram of another perspective of the structure shown;

[0041] Figure 14 Structure exploded view of embodiment 3 of the filter cartridge mounting structure of the utility model;

[0042] Figure 15 For Figure 14 The schematic view of another view of the structure shown in the figure;

[0043] Figure 16 For Figures 14-15 The front projection schematic view of the filter cartridge mounting structure shown in the figure is assembled together;

[0044] Figure 17 For Figure 16 The C-C cross-sectional view of the filter cartridge mounting structure shown in the figure;

[0045] Mark explanation in the figure:

[0046] 100 cover:

[0047] 110 cover body, 1101 positioning edge, 1102 isolation wall, 1103 first cylindrical section, 1104 second cylindrical section, 1105 first connecting thread, 1106 cylindrical surface, 1107 barrel part, 1108 first limiting edge, 1109 groove, 1110 slot, 1111 sealing convex rib,

[0048] 120 rotating part, 1201 operation part, 1202 second connecting thread, 1203 sealing sleeve, 1204 body, 1205 limiting sleeve, 1206 second limiting edge, 1207 hook, 1208 annular wall;

[0049] 200 support, 201 core frame, 202 third connecting thread, 203 axial positioning surface, 204 cylindrical section;

[0050] 300 filter cartridge;

[0051] 400 upper frame, 401 axial positioning surface. Specific implementation

[0052] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model embodiment will be described clearly and completely below by combining with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0053] The terms "comprising" and "having" and any variations thereof in the DETAILED DESCRIPTION and the CLAIMS of the present application are intended to cover a non-exclusive inclusion, for example, a method or product including a series of technical features, which is not necessarily limited to those clearly listed, and can also include other technical features not clearly listed that can be included in the method or product.

[0054] In the description of the present application, it should be understood that the technical features defined by the terms "first", "second", etc. have an order concept, only for the purpose of clearly describing the defined technical features, so that the defined technical features can be clearly distinguished from other technical features, and it does not represent the actual implementation, therefore it cannot be understood as a limitation of the present application.

[0055] The present application will be described in detail below with specific embodiments and drawings.

[0056] Figures 1-7 The structure of the cover 100 is shown. It includes a cover body 110 and a rotating part 120.

[0057] The cover body 110 is cylindrical in shape, has two positioning edges 1101 on its outer wall, has a radial extension isolation wall 1102 inside, and has a first cylindrical section 1103 and a second cylindrical section 1104 with opposite directions in the axial direction, and the first cylindrical section 1104 is configured with a first connecting thread 1105.

[0058] In the illustrated structure, the first connecting thread 1105 is an internal thread provided on the inner wall of the first cylindrical section, and when connected by threads, the external thread is connected to the internal thread. In other embodiments, the first connecting thread can be an external thread provided on the outer wall of the first cylindrical section, and when connected by threads, the internal thread is connected to the external thread. In order to achieve quick connection, that is, to connect in place by rotating a small angle, under the premise of ensuring thread self-locking, the matching threads have a large thread angle, and the threads are not necessarily continuous. The first connecting thread is two internal threads.

[0059] The rotating part 120 is sealingly and rotatably penetrated through the isolation wall 1102, has an operating part 1201 located in the first cylindrical section 1103, and has a second connecting thread 1202 facing the second cylindrical section 1104. Therefore, the operating part can be seen and screwed from the first cylindrical section, and the second connecting thread can be seen from the second cylindrical section. Since the rotating part is rotatably penetrated through the isolation wall, the connection or disassembly of the second connecting thread and the corresponding thread can be achieved by screwing the operating part. Since the rotating part is sealingly penetrated through the isolation wall, the part of the isolation wall where the rotating part is arranged will not leak.

[0060] In the structure shown, the second connecting thread 1202 is a blind hole with internal thread arranged in the rotating member. When connected by thread, the blind hole with internal thread is connected with an external thread (screw rod). In other embodiments, the second connecting thread can be an external thread column (screw rod) arranged in the rotating member, and when connected by thread, the external thread column (screw rod) is connected with an internal thread (nut or blind hole with internal thread).

[0061] The cover with the above structure can be assembled with the filter cartridge by the first cylindrical section 1103 of the cover body and the first connecting thread 1105 or the second cylindrical section 1104 and the second connecting thread 1202, so that the cover is suitable for different specifications and models of vacuum cleaners, thereby reducing the manufacturing cost and increasing the versatility.

[0062] As shown in Figures 6-7 , the rotating member is arranged in the isolation wall in an axially movable manner, Figure 6 , the rotating member is arranged in the isolation wall in an axially movable manner, Figure 7 , the rotating member is arranged in the isolation wall in an axially movable manner,

[0063] Specifically, as shown in Figure 4 , Figures 6-7 , the rotating member 120 has a circular wall 1208, and the sealing sleeve 1203 is embedded on the circular wall 1208, so that the sealing sleeve is combined with the circular wall and can move axially with the circular wall. The isolation wall 1102 has an axially extending cylindrical portion 1107, and the outer wall of the cylindrical portion 1107 constitutes a cylindrical surface 1106 of the isolation wall. The sealing sleeve 1203 radially contacts the cylindrical surface 1106 to achieve sealing within the axial movement range of the rotating member 120 relative to the isolation wall 1102. Accordingly, no matter which end of the cover is assembled with the filter cartridge, the sealing can be guaranteed, and air and dust leakage at the cover part can be avoided.

[0064] The rotating member 120 includes a body 1204 and a limiting sleeve 1205. The body 1204 is located in the first cylindrical section 1103, and the limiting sleeve 1205 is located in the second cylindrical section 1104 and connected with the body 1204 through the cylindrical portion 1107. The limiting sleeve 1205 is separated from the cylindrical portion 1107 to have a first limiting edge 1107 and a second limiting edge 1206 matched with each other, and the first limiting edge and the second limiting edge limit the axial movement range of the rotating member relative to the isolation wall. Accordingly, the rotating member and the cover body are kept together and cannot be separated and detached. When the rotating member 120 is axially moved upward from the position shown in Figure 7 to the position shown in Figure 6 by a distance S, the first limiting edge 1107 and the second limiting edge 1206 abut against each other to prevent the rotating member and the cover body from being separated and detached.

[0065] The limiting sleeve 1205 is provided with a hook 1207 and a groove 1109, and the hook is hooked in the groove to connect the limiting sleeve with the body.

[0066] The isolation wall 1102 is provided with a groove 1110 for accommodating the operating part 1201 on one side of the first cylindrical section 1103. Figures 6-7 The operating part 120 is moved from the position shown in the figure to the position shown in the figure. Figure 6 The operating part is accommodated in the groove, and the length and volume of the cover can be reduced. Figure 7

[0067] The outer wall of the cover body 110 is provided with a sealing protrusion 1111. The sealing protrusion 1111 is used to contact the inner wall of the filter cartridge 300 to achieve sealing and avoid leakage.

[0068] Based on the above structure of the cover, the filter cartridge installation structure of the following embodiments can be used when the filter cartridge is installed.

[0069] Embodiment 1

[0070] As shown in the figure, the filter cartridge installation structure includes a support 200, a filter cartridge 300 and a cover 100. Figures 8-11 The support 200 has an axial positioning surface 203 and a core frame 201 extending axially downward from the axial positioning surface 203, and the lower end of the core frame 201 has a third connecting thread 202. The third connecting thread 202 is an external thread matched with the first connecting thread 1105 of the cover. When the form of the first connecting thread structure changes, the third connecting thread also changes.

[0071] The filter cartridge 300 is sleeved on the core frame 201.

[0072] The cover 100 is arranged at the lower end of the filter cartridge 300, the first cylindrical section 1103 of the cover body 110 extends into the filter cartridge 300, and the first connecting thread 1105 is connected with the third connecting thread 202 to axially limit the filter cartridge 300 between the axial positioning surface 203 and the positioning edge 1101 of the cover body. The filter cartridge cannot move axially (up and down).

[0073] In addition, the core frame 201 also has a cylindrical section 204, and the cylindrical section 204 and the first cylindrical section 1103 are matched with the inner surface of the filter cartridge 300 to radially position the filter cartridge, preventing the filter cartridge from moving radially. In addition, the sealing protrusion 1111 of the outer wall of the cover body 110 is pressed against the inner wall of the filter cartridge, ensuring sealing and avoiding leakage.

[0074]

[0075] ​​In this embodiment, the first connecting thread 1105 and the third connecting thread 202 are connected together or disconnected by rotating the cover body 110 .

[0076] Example 2

[0077] like Figures 12-13 As shown, in this embodiment, the bracket 200 is mounted on the upper frame 400. If the bracket and upper frame are integrally formed or assembled together, the lower side of the upper frame 400 is provided with a plurality of radial ribs. The lower edges of the ribs define axial positioning surfaces 401. When the first connecting thread 1105 and the third connecting thread 202 are connected, the filter cartridge is similarly constrained axially between the axial positioning surfaces and the positioning edge of the cover. The remaining structure of this embodiment is the same as that of Example 1 and is not further described.

[0078] In this embodiment, the first connecting thread 1105 and the third connecting thread 202 are connected together or disconnected by rotating the cover body 110 .

[0079] Example 3

[0080] like Figures 14-17 As shown, the filter cartridge mounting structure includes a bracket 200 , a filter cartridge 300 and a cover 100 .

[0081] Bracket 200 has an axial positioning surface 203 and a core frame 201 extending axially downward from the axial positioning surface. The lower end of core frame 201 has a third connecting thread 202. In the illustration, third connecting thread 202 is an external thread (screw) that mates with the second connecting thread 1202 (internal threaded blind hole) of the lid. When the second connecting thread structure changes, the third connecting thread changes accordingly.

[0082] The filter cartridge 300 is sleeved on the core frame 201 .

[0083] The cover 100 is positioned at the lower end of the filter cartridge 300. The second cylindrical section 1104 of the cover extends into the filter cartridge 300. The second connecting thread 1202 connects with the third connecting thread 202, confining the filter cartridge axially between the axial positioning surface 203 and the positioning edge 1101 of the cover. The filter cartridge cannot move axially (up and down).

[0084] Furthermore, the core frame 201 includes a cylindrical section 204. The cylindrical section 204 and the second cylindrical section 1104 mate with the inner surface of the filter cartridge 300 to radially position the filter cartridge and prevent radial movement. Furthermore, the sealing ribs 1111 on the outer wall of the cover 110 are pressed against the inner wall of the filter cartridge 300, ensuring a seal and preventing leakage.

[0085] In this embodiment, the second connecting thread 1202 and the third connecting thread 202 are connected together or disconnected by rotating the rotating member 120 .

[0086] Example 4

[0087] In this embodiment, the bracket is arranged on the upper frame, and the bracket is integrally formed with the upper frame or assembled together. The lower side of the upper frame is provided with a plurality of radial ribs in a radial manner, and the lower edge of the rib defines an axial positioning surface. When the second connecting thread is connected with the third connecting thread, the filter cartridge is also axially limited between the axial positioning surface and the positioning edge of the cover body. The remaining structure of this embodiment is the same as that of embodiment 3, and is not described herein.

[0088] In this embodiment, the second connecting thread and the third connecting thread are connected together or disassembled by rotating the cover body.

Claims

1. A cap characterized by The cover (110) has an outer wall with a positioning rim (1101), an inner wall with a radially extending partition wall (1102), and an axially extending first cylindrical section (1103) and a second cylindrical section (1104) with opposite directions, and the first cylindrical section is provided with a first connecting thread (1105). The rotating member (120) is rotatably sealed through the partition wall (1102) and has an operating part (1201) located in the first cylindrical section and a second connecting thread (1202) facing the second cylindrical section. The first connecting thread (1105) is an internal thread provided on the inner wall of the first cylindrical section or an external thread provided on the outer wall of the first cylindrical section.

2. The closure of claim 1 wherein: The second connecting thread (1202) is an internal thread blind hole or an external thread column provided on the rotating member.

3. A lid as claimed in claim 1 or 2, characterised in that: The rotating member (120) is axially movably arranged on the partition wall (1102).

4. The closure of claim 1 wherein: The rotating member (120) is provided with a sealing sleeve (1203), and the partition wall (1102) has a cylindrical surface (1106), and the sealing sleeve (1203) is in radial contact with the cylindrical surface (1106) within the axial movement range of the rotating member relative to the partition wall to achieve sealing.

5. The closure of claim 4 wherein: The partition wall (1102) has an axially extending cylindrical portion (1107), and the rotating member (120) includes a body (1204) located in the first cylindrical section (1103) and a limiting sleeve (1205) located in the second cylindrical section (1104) and connected with the body (1204) through the cylindrical portion (1107), and the limiting sleeve (1205) is provided with a matched first limiting rim (1108) and a second limiting rim (1206) separated from the cylindrical portion (1107), and the first limiting rim and the second limiting rim limit the axial movement range of the rotating member relative to the partition wall.

6. A lid as claimed in claim 4 or 5, characterised in that: The limiting sleeve (1205) is provided with a hook (12070) and a groove (1109) separated from the body (1204), and the hook is hooked in the groove to connect the limiting sleeve with the body.

7. The closure of claim 6, wherein: The partition wall (1102) is provided with a groove (1110) on one side of the first cylindrical section for accommodating the operating part (1201).

8. A lid as claimed in claim 4 or 5, characterised in that: The outer wall of the cover (110) has a sealing protruding rib (1111).

9. The closure of claim 1 wherein: The bracket (200) has an axially extending core frame (201) provided with a third connecting thread (202).

10. A filter cartridge mounting structure characterized by The filter cartridge (300) is sleeved on the core frame (201). The first connecting thread (1105) of the cover (100) is connected with the third connecting thread (202) to axially limit the filter cartridge between the axial positioning surface and the positioning rim (1101) of the cover. The axial positioning surface is provided on the bracket (200). The bracket (200) is arranged on the upper shelf (400), and the axial positioning surface is provided on the upper shelf.

11. The filter cartridge mounting structure according to claim 10, characterized by: The core frame (201) has a cylindrical section (204), and the cylindrical section (204) and the first cylindrical section (1103) radially position the filter cartridge (300).

12. The filter cartridge mounting structure of claim 10 wherein: The bracket (200) has an axially extending core frame (201) provided with a third connecting thread (202).

13. The filter cartridge mounting structure of claim 10 wherein: ​ 14. A filter cartridge mounting structure characterized by ​ ​ a filter cartridge (300) is sleeved on the core frame (201) ; The cap (100) according to any one of claims 1-9, wherein the second cylindrical section (1104) of the cap body extends into the filter cartridge (300), and the second connecting thread (1202) is connected with the third connecting thread (202) to axially limit the filter cartridge (300) between the axial positioning surface and the positioning edge (1101) of the cap body.

15. The filter cartridge mounting structure of claim 14 wherein: The axial positioning surface is arranged on the support (200).

16. The filter cartridge mounting structure of claim 14 wherein: The support (200) is arranged on the upper frame (400), and the axial positioning surface is arranged on the upper frame.

17. The filter cartridge mounting structure of claim 14 wherein: The core frame (201) has a cylindrical section (204), and the cylindrical section (204) and the second cylindrical section (1104) radially position the filter cartridge (300).

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