A detachable connection anti-loosening structure and a front filter

Abstract

The utility model relates to a kind of rotation detachable connection anti-loose structure and prefilter, including head main body, the head main body is equipped with water inlet port, water outlet port and assembly cavity, further including main body butt joint and adjusting assembly, rotation detachable connection structure is equipped between the main body butt joint and head main body, the adjusting assembly includes driving part and adjusting piece, driving part is circumferentially rotationally connected with head main body, adjusting piece is axially slidably connected with head main body, driving part and adjusting piece between still be equipped with conversion cooperation part or conversion structure, under the action of external force, driving part can be circumferentially rotated relative to head main body, by conversion cooperation part or conversion structure, and then driving adjusting piece axially slides, realize the extrusion and extrusion release of rotation detachable connection structure.The structure is optimized, can effectively prevent rotation detachable loosening, and present to traditional screw connection mode, the gap between rotation detachable is movable, convenient for the disassembly of filter bottle.

Description

Technical Field

[0001] This utility model relates to a rotating, detachable, anti-loosening structure and a pre-filter, belonging to the technical field of water purification equipment. Background Technology

[0002] Municipal tap water suffers from secondary pollution such as pipe corrosion and sediment, leading to deterioration of household water quality. Pre-filters are typically installed on the inlet pipes to improve water quality. Current pre-filter technology includes: a unit, a filter bottle connected to the unit at the top, and a drain ball valve connected to the bottom of the filter bottle. The filter bottle contains a filter screen frame, and the filter screen is fitted onto the outer wall of the frame; collectively referred to as the filtration mechanism. During use, water flows from the inlet of the unit into the gap between the filter bottle and the filter screen. After being filtered, water flows into the center of the filter screen frame, and then from the center to the outlet of the unit. Pre-filters are now widely used in homes and high-end hotels.

[0003] Pre-filter cartridges primarily use a mesh or disc structure. When necessary, quick-release cleaning of the filter bottle and cartridge is required. This process, removing the filter from its installation location, is commonly referred to as off-site cleaning. Stubborn impurities are efficiently removed through manual or machine washing, and the filter is then easily reassembled. However, in current pre-filter technology, off-site cleaning often requires additional tools to disassemble the filter bottle due to the detachable, rotating connection between the filter head and the filter bottle (e.g., threaded connections). To ensure a tight and reliable connection, these threaded connections are typically quite secure, making disassembly time-consuming and labor-intensive, especially in confined installation spaces where large tools are difficult to maneuver.

[0004] One research approach is to adjust the rotational connection gap between the head and the filter bottle, such as the thread gap, to facilitate manual disassembly. However, this gap presents a risk of water leakage over time, and the threaded connection may loosen due to external environmental factors, further increasing the risk of leakage. Therefore, an optimized structure is needed to ensure easy disassembly of the threaded connection while simultaneously improving its effectiveness—that is, preventing loosening. To this end, the researchers in this application, through structural optimization design and experimental simulation, developed a structure with a rotatable, detachable, and anti-loosening connection that does not affect the assembly of the head and filter bottle. This structure was applied to the design and development of a new type of pre-filter, achieving excellent results. It effectively prevents loosening of the connection structure, improving the service life and reliability of the pre-filter. Utility Model Content

[0005] One of the objectives of this invention is to address the shortcomings of the threaded connection between the head and filter bottle of the existing pre-filter, and to provide a rotatable, detachable, and anti-loosening structure. This optimized structure effectively prevents the connection from loosening, and compared to traditional threaded connections, the gap between the connecting structures is movable, facilitating the disassembly of the filter bottle.

[0006] The second objective of this utility model is to provide a pre-filter with a rotatable and detachable anti-loosening structure. Through structural optimization design and experimental simulation, good results have been achieved, which can effectively prevent the loosening of the connection structure and improve the service life and reliability of the pre-filter.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A rotatable and detachable anti-loosening structure includes a machine head body, which has an inlet port, an outlet port, and an assembly cavity. It also includes a main body docking component and an adjustment assembly. A rotatable and detachable connection structure is provided between the main body docking component and the machine head body. The adjustment assembly includes a driving component and an adjusting component. The driving component is circumferentially rotatably connected to the machine head body, and the adjusting component is axially slidably connected to the machine head body. A conversion fit or conversion structure is also provided between the driving component and the adjusting component. Under external force, the driving component can rotate circumferentially relative to the machine head body. Through the conversion fit or conversion structure, the adjusting component is driven to slide axially, thereby achieving the compression and release of the rotatable and detachable connection structure.

[0009] This utility model's rotatable detachable anti-loosening structure relies on the basic structure of the machine head assembly, corresponding to the existing machine head structure. The machine head assembly is equipped with a rotatable driving component. By rotating, the driving adjustment component slides axially, that is, the rotatable detachable connection structure is squeezed through compression. After the compression is released, the seal is broken, and the rotatable detachable connection structure is loosened, making it easy to disassemble the filter bottle. This replaces the existing threaded connection between the machine head and the filter bottle, which requires a large external force and space for disassembly. This utility model does not require this. The rotation of the driving component can be achieved by using a special-shaped wrench or a similar simple device that can drive the driving component to rotate.

[0010] Preferably, the adjustment component is disposed in the assembly cavity, the assembly cavity is provided with an assembly port, the adjustment component and the assembly cavity are axially slidably connected, the driving component is provided with a central water outlet channel and a channel port adapted to the water outlet port, and the driving end of the driving component is disposed at the driving port.

[0011] Preferably, the rotatable detachable connection structure is a threaded connection structure. The assembly cavity is divided into a first assembly cavity and a second assembly cavity from top to bottom. The driving component includes an outer driving part, an assembly part, and an inner driving part. The driving component is connected to the first assembly cavity through the assembly part. The adjusting component includes an assembly end and a movable end. The assembly end is connected to the inner driving part. The movable end is used to achieve axial sliding connection with the second assembly cavity. The movable end is used to compress and release the threaded connection structure.

[0012] Preferably, the adjusting component is a disc-type adjusting component, with the assembly end located on the upper side of the disc-type adjusting component. The assembly end is provided with at least one set of first sliding components with an inclined angle in the circumferential direction, and the inner driving part is provided with a matching second sliding component. The first and second sliding components are combined to form a conversion structure, which converts the circumferential rotation of the driving component into the axial sliding of the adjusting component.

[0013] Preferably, the inner drive unit is composed of an upper drive unit, an inner drive shaft, and a lower drive unit. The inner drive shaft is adapted to the assembly end of the adjusting member. Both the upper drive unit and the lower drive unit are provided with protrusions. The adjusting member is provided with a slide rail. The protrusions of the upper drive unit and the lower drive unit clamp the slide rail of the adjusting member in opposite directions.

[0014] Preferably, the adjusting component is a disc-type adjusting component, with the assembly end located on the upper side of the disc-type adjusting component. The assembly end is provided with a thread, and the inner driving part is provided with a matching thread. The thread combination forms a conversion mating part, which converts the circumferential rotation of the driving component into the axial sliding of the adjusting component.

[0015] Preferably, the movable end of the adjusting member is provided with a sealing element, which is made of an inert sealing material.

[0016] Preferably, the external drive unit is adapted to the drive port, and the external drive unit is fixedly equipped with a drive wrench.

[0017] Preferably, a positioning structure is provided between the adjusting member and the assembly cavity in the circumferential direction.

[0018] Preferably, the positioning structure is a combination structure of a groove and a slider or a combination structure of a shaft and a hole.

[0019] A pre-filter with a rotatable and detachable anti-loosening structure includes a filter bottle and a filtration mechanism located inside the filter bottle. The rotatable and detachable anti-loosening structure is used, and the main body of the filter head cooperates with the main body docking part to achieve a fixed connection of the filter bottle.

[0020] Preferably, the water inlet port, water outlet port, and assembly cavity of the head assembly are all provided with isolation bushings. The isolation bushings are made of inert material or have an inert material coating. The inert material is rubber, plastic, or ceramic.

[0021] The beneficial effects of this utility model are as follows: The rotating detachable connection anti-loosening structure of this utility model is optimized, which can effectively prevent the connection structure from loosening. Moreover, compared with the traditional threaded connection method, the gap between the connection structures is movable, which facilitates the disassembly of the filter bottle. The pre-filter with rotating detachable connection anti-loosening structure has achieved good results through structural optimization design and experimental simulation, which can effectively prevent the connection structure from loosening and improve the service life and reliability of the pre-filter. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the rotating detachable connection anti-loosening structure in Embodiment 1;

[0023] Figure 2 This is an exploded view of the rotating detachable connection anti-loosening structure of Embodiment 1;

[0024] Figure 3 This is an exploded view of the rotating detachable connection anti-loosening structure of Embodiment 1;

[0025] Figure 4 This is a cross-sectional view (in the loosened state) of the rotatable detachable connection anti-loosening structure of Embodiment 1;

[0026] Figure 5 Example 1 is a cross-sectional view (pressed state) of the rotatable detachable connection anti-loosening structure;

[0027] Figure 6 This is a cross-sectional view (in the loosened state) of the rotatable detachable connection anti-loosening structure of Embodiment 2;

[0028] Figure 7 This is a cross-sectional view (pressed state) of the rotatable detachable anti-loosening structure of Embodiment 2;

[0029] Figure 8 This is a schematic diagram of the structure of Example 3.

[0030] In the diagram: 1. Head assembly, 2. Drive unit, 21. External drive unit, 22. Assembly unit, 23. Internal drive unit, 23a. Upper drive unit, 23b. Internal drive shaft, 23c. Lower drive unit, 3. Adjustment unit, 4. Protrusion, 5. Drive wrench, 6. Slide rail. Detailed Implementation

[0031] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0032] Example 1:

[0033] like Figure 1-5As shown, a rotatable and detachable anti-loosening structure includes a machine head body 1, which has an inlet port, an outlet port, and an assembly cavity. The structure is characterized by further including a main body docking part a and an adjustment component. The main body docking part a is rotatably and detachably connected to the machine head body; in this embodiment, it is specifically a threaded connection structure. The adjustment component includes a driving part 2 and an adjusting part 3. The driving part 2 is circumferentially rotatably connected to the machine head body 1, and the adjusting part 3 is axially slidably connected to the machine head body 1. A conversion fit or conversion structure is also provided between the driving part 2 and the adjusting part 3. Under external force, the driving part 2 can rotate circumferentially relative to the machine head body 1. Through the conversion fit or conversion structure, the adjusting part 3 is driven to slide axially, thereby achieving compression and release of the threaded connection structure.

[0034] Specifically, in this embodiment, the assembly cavity is provided with a drive port, the outer wall of the adjusting member 3 is axially slidably connected to the inner wall of the assembly cavity, the drive member 2 is provided with a central water outlet channel and a channel port adapted to the water outlet port, and the drive end of the drive member 2 is located at the drive port.

[0035] Furthermore, the assembly cavity is divided into a first assembly cavity and a second assembly cavity from top to bottom. The driving component 2 includes an outer driving part 21, an assembly part 22, and an inner driving part 23. The driving component 2 is connected to the first assembly cavity through the assembly part 22. The adjusting component 3 includes an assembly end and a movable end. The assembly end is connected to the inner driving part 23, and the movable end is used to achieve axial sliding connection with the second assembly cavity. The movable end is used to compress and release the threaded connection structure.

[0036] In this embodiment, the adjusting member 3 is a disc-type adjusting member, with the assembly end located on the upper side of the disc-type adjusting member. The assembly end is provided with at least one set of first sliding members with an inclined angle in the circumferential direction, and the inner driving part 23 is provided with a matching second sliding member. The first sliding member and the second sliding member are combined to form a conversion structure, which converts the circumferential rotation of the driving member 2 into the axial sliding of the adjusting member 3.

[0037] In this embodiment, the inner drive unit 23 is composed of an upper drive unit 23a, an inner drive shaft 23b, and a lower drive unit 23c. The inner drive shaft 23b is adapted to the assembly end of the adjusting member 3. Both the upper drive unit 23a and the lower drive unit 23c are provided with protrusions 4. The adjusting member 3 is provided with a slide rail 6. The protrusions 4 of the upper drive unit 23a and the lower drive unit 23c clamp the slide rail 6 of the adjusting member 3 in opposite directions.

[0038] In this embodiment, the movable end of the adjusting member 3 is provided with a sealing element, which is made of an inert sealing material.

[0039] In this embodiment, the driving end of the driving component 2 is adapted to the driving port, and the driving end is fixedly provided with a driving wrench 5.

[0040] In this embodiment, a positioning structure is provided between the adjusting member 3 and the assembly cavity in the circumferential direction.

[0041] In this embodiment, the positioning structure is a combination structure of a groove and a slider or a combination structure of a shaft and a hole.

[0042] This utility model also protects a pre-filter with a rotatable and detachable anti-loosening structure, including a filter bottle and a filtration mechanism located inside the filter bottle. The rotatable and detachable anti-loosening structure is used, and the main body 1 and the main body docking part a cooperate to achieve a fixed connection of the filter bottle. The inlet port, outlet port and assembly cavity of the main body 1 are all provided with isolation bushings. The isolation bushings are made of inert material or have an inert material coating. The inert material is rubber, plastic or ceramic.

[0043] Example 2

[0044] like Figure 6-7 As shown, the basic structure is the same as in Embodiment 1, except that in this embodiment, the adjusting member 3 is a disc-type adjusting member, the assembly end is located on the upper side of the disc-type adjusting member, the assembly end is provided with a thread, the inner driving part 23 is provided with a matching thread, and the thread combination forms a conversion mating part, which converts the circumferential rotation of the driving member 2 into the axial sliding of the adjusting member 3.

[0045] Example 3

[0046] like Figure 8 As shown, the basic structure is the same as in Embodiment 1, except that: the main body docking part a is provided with a rotatable and detachable connection structure between the main body docking part a and the machine head body. The machine head body is provided with several discontinuous slots in the circumference. The main body docking part a is provided with several matching discontinuous strips on the inner side. Through the cooperation of the strips and slots, the rotatable and detachable connection is achieved. Under the action of external force, the driving part 2 can rotate circumferentially relative to the machine head body 1. Through the conversion of the mating part or the conversion structure, the adjusting part 3 is driven to slide axially, thereby realizing the compression and release of the mating structure of the strips and slots.

[0047] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications may be made without departing from the technical solutions described in the claims.

Claims

1. A rotatable and detachable anti-loosening structure, comprising a head body (1), wherein the head body (1) is provided with a water inlet port, a water outlet port and an assembly cavity, characterized in that: It also includes a main docking part (a) and an adjustment component. The main docking part (a) is provided with a rotatable and detachable connection structure between itself and the machine head body. The adjustment component includes a driving part (2) and an adjusting part (3). The driving part (2) is circumferentially rotatably connected to the machine head body (1), and the adjusting part (3) is axially slidably connected to the machine head body (1). A conversion fit part or conversion structure is also provided between the driving part (2) and the adjusting part (3). Under the action of external force, the driving part (2) can rotate circumferentially relative to the machine head body (1). Through the conversion fit part or conversion structure, the adjusting part (3) is driven to slide axially, thereby realizing the compression and release of the rotatable and detachable connection structure.

2. The rotating detachable connection anti-loosening structure according to claim 1, characterized in that, The assembly cavity is provided with a drive port, and the adjusting component (3) is axially slidably connected to the assembly cavity. The drive component (2) is provided with a central water outlet channel and a channel port adapted to the water outlet port. The drive end of the drive component (2) is located at the drive port, and the drive component (2) is axially fixed to the machine head body (1).

3. The rotating detachable connection anti-loosening structure according to claim 2, characterized in that, The rotatable detachable connection structure is a threaded connection structure. The assembly cavity is divided into a first assembly cavity and a second assembly cavity from top to bottom. The driving component (2) includes an outer driving part (21), an assembly part (22) and an inner driving part (23). The driving component (2) is connected to the first assembly cavity through the assembly part (22). The adjusting component (3) includes an assembly end and a movable end. It is connected to the inner driving part (23) through the assembly end. It achieves axial sliding connection through the cooperation of the movable end with the second assembly cavity. It achieves compression and release of the threaded connection structure through the movable end.

4. The rotating detachable connection anti-loosening structure according to claim 3, characterized in that, The adjusting component (3) is a disc-type adjusting component. The assembly end is located on the upper side of the disc-type adjusting component. The assembly end is provided with at least one set of first sliding components with an inclined angle in the circumferential direction. The inner driving part (23) is provided with a matching second sliding component. The first sliding component and the second sliding component are combined to form a conversion structure, which converts the circumferential rotation of the driving component (2) into the axial sliding of the adjusting component (3).

5. The rotating detachable connection anti-loosening structure according to claim 4, characterized in that, The inner drive unit (23) is composed of an upper drive unit (23a), an inner drive shaft (23b) and a lower drive unit (23c). The inner drive shaft (23b) is adapted to the assembly end of the adjusting member (3). Both the upper drive unit (23a) and the lower drive unit (23c) are provided with protrusions (4). The adjusting member (3) is provided with a slide rail (9). The protrusions (4) of the upper drive unit (23a) and the lower drive unit (23c) clamp the slide rail (9) of the adjusting member (3) in opposite directions.

6. The rotating detachable connection anti-loosening structure according to claim 3, characterized in that, The adjusting component (3) is a disc-type adjusting component. The assembly end is located on the upper side of the disc-type adjusting component. The assembly end is provided with a thread, and the inner drive part (23) is provided with a matching thread. The thread combination forms a conversion mating part, which converts the circumferential rotation of the drive component (2) into the axial sliding of the adjusting component (3).

7. The rotating detachable connection anti-loosening structure according to claim 3, characterized in that, The movable end of the adjusting member (3) is provided with a sealing element, which is made of an inert sealing material.

8. A rotatably detachable anti-loosening structure according to claim 2, 3, 4, 5, or 6, characterized in that, The driving end of the driving component (2) is adapted to the driving port, and a driving wrench (5) is fixedly provided on the driving end.

9. A rotatably detachable anti-loosening structure according to any one of claims 1, 2, 3, 4, 5, or 6, characterized in that, The adjusting component (3) is provided with a positioning structure in the circumferential direction between itself and the assembly cavity.

10. The rotatably detachable anti-loosening structure according to claim 9, characterized in that, The positioning structure is a combination structure of a groove and a slider or a combination structure of a shaft and a hole.

11. A pre-filter with a rotatably detachable anti-loosening structure, comprising a filter bottle (6) and a filtration mechanism located within the filter bottle (6), characterized in that, The rotating detachable connection anti-loosening structure described in any one of claims 1-9 is adopted, and the machine head body (1) and the main body docking part (a) cooperate to achieve a fixed connection of the filter bottle.

12. The pre-filter with a rotatably detachable anti-loosening structure according to claim 11, characterized in that, The water inlet port, water outlet port and assembly cavity of the main body (1) of the machine head are all provided with isolation bushings. The isolation bushings are made of inert materials or have an inert material coating. The inert material is rubber, plastic or ceramic.

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