Drainage pump water outlet mounting device
By designing a drainage pump outlet installation device, which employs a structure including a locking block and a rotating stop at the locking part, a sealing ring at the sleeve part, and a one-way valve, the problem of loose connection at the outlet of traditional drainage pumps is solved, achieving convenient disassembly and assembly and high sealing performance, thus meeting the needs of use and maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG QILING ELECTRIC TECH CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional drainage pumps have loose connections between the outlet and the housing, making them difficult to disassemble and install, and their sealing is insufficient, which affects maintenance and use.
A drainage pump outlet installation device was designed, comprising a mounting base, pipe body, snap-fit part, inner connection part, sleeve part, and fixing part. It adopts a structure with a snap-fit block and a rotating stop in the snap-fit part, a sealing ring in the sleeve part, and a one-way valve, which realizes the functions of sealing and convenient disassembly and assembly. The connection is made by sliding snap-fit, which enhances the sealing and stability.
It achieves a tight connection between components, facilitates disassembly and maintenance, enhances sealing and stability, and meets usage requirements.
Smart Images

Figure CN224214437U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a drainage pump mounting box, and more particularly to a drainage pump outlet mounting device. Background Technology
[0002] For some central air conditioning products, a drain pump is required to facilitate the discharge of condensate or other moisture. Traditional products have a relatively simple design for the water circuit connection within the casing, using a fixed sleeve at one end for the installation of internal and external pipes. This structure either lacks a tight enough connection to the casing or is directly sealed off, both of which are inconvenient for subsequent maintenance and use. There is a lack of products that are easy to install and disassemble while ensuring a secure seal. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a drainage pump outlet installation device.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a drainage pump outlet installation device, comprising a mounting base and a pipe body. The mounting base has a snap-fit part, a mounting part, and an inner connection part that are integrally connected in sequence. The mounting part has through slots on opposite side walls. The inner connection part has a hollow cylindrical structure. A cavity is provided between the mounting base and the pipe body. The pipe body has a snap-fit block on its outer wall that engages with the snap-fit part. The snap-fit block and the snap-fit part rotate and engage in the circumferential direction, and the snap-fit block and the snap-fit part are engaged and limited in the direction of cavity extension. The pipe body has a sleeve part that fits into the cavity of the mounting base. The pipe body also has a fixing part on its outer wall for fixed assembly. It also includes a housing and a cover plate for fixed assembly. One side of the housing has an opening extending to the outer edge. The snap-fit slot engages with the housing at the opening.
[0005] A one-way valve is also fitted onto the sleeve portion.
[0006] The inner portion has a stepped distribution in a stepped shape on the radial cross section.
[0007] The sleeve part is provided with an annular groove, and a sealing ring is provided at the annular groove.
[0008] The locking parts are arranged in pairs and symmetrically, and each locking part is provided with a groove for the locking block to rotate and slide into.
[0009] The chute has a retaining groove wall at the end of the sliding path.
[0010] The locking part has a limiting groove wall on one side of the slide groove to prevent the locking block from disengaging along the flow direction of the cavity.
[0011] The fixing part is provided with a connection hole for installation.
[0012] The radial cross-section of the tube near the sleeve end is stepped.
[0013] The mounting part has a reinforcing edge at one end where the slot is located, and the slot extends to the reinforcing edge.
[0014] The beneficial effects of this utility model are as follows: The drainage pump outlet installation device provided by this utility model has a clever design and reasonable layout. The components are tightly and reliably connected, making it easy to disassemble and use. Maintenance and replacement of components are also relatively convenient. It enhances the sealing of movable assembly and meets the design and usage requirements. Attached Figure Description
[0015] Figure 1 This is an exploded structural diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the installation structure of this utility model. Detailed Implementation
[0017] like Figures 1-2 As shown, a drainage pump outlet installation device includes a mounting base 1 and a pipe body 2. The mounting base 1 has a snap-fit part 3, a mounting part 4, and an inner connection part 5 that are integrally connected in sequence. The separate installation facilitates disassembly and replacement of components. The mounting part 4 has through slots 6 on opposite side walls. The inner connection part 5 has a hollow cylindrical structure. A cavity is provided between the mounting base 1 and the pipe body 2. The pipe body 2 has a snap-fit block 7 on its outer wall that engages with the snap-fit part 3. The snap-fit block 7 and the snap-fit part 3 rotate and engage in the circumferential direction, and the snap-fit block 7 and the snap-fit part 3 are engaged and limited in the direction of cavity extension. The pipe body 2 has a sleeve part 8 that fits into the cavity of the mounting base 1. The pipe body 2 also has a fixing part 9 on its outer wall for fixed assembly. It also includes a housing 10 and a cover plate 11 for fixed assembly. One side of the housing 10 has an opening 12 extending to the outer edge. The snap-fit slots 6 engage with the housing 10 at the opening 12. The design of the slot 6 facilitates the direct installation of the mounting base 1 onto the housing 10 via a sliding snap-fit mechanism. The slot 6 extends vertically, making it less prone to detachment and contributing to long-term stability. In this embodiment, a cover plate 11 is also included to completely secure the mounting base 1 from above. The locking block 7 uses a rotating snap-fit mechanism to restrict the removal of the tube 2 without affecting installation or use, and is not susceptible to loosening. However, to further improve stability and installation tightness, a fixing part 9 is provided for easy connection and fixation. The sleeve part 8 is designed to enhance the sealing and waterproofing of the connection. In this embodiment, it itself provides a labyrinth seal effect, allowing the medium to pass through tortuous and narrow gaps to achieve a throttling and sealing effect.
[0018] A one-way valve is also fitted onto the sleeve portion 8 to prevent backflow of drainage. The inner connection portion 5 has a stepped distribution in a stepped shape in the radial cross-section. This stepped structure facilitates axial structural connection, reduces the design limitations of the assembly, and enhances sealing and assembly stability. The sleeve portion 8 has an annular groove, and a sealing ring is provided at the annular groove. The sealing ring enhances the sealing performance and also increases friction to assist in fixation, preventing easy loosening, deviation, or pull-out.
[0019] The locking parts 3 are arranged in pairs and symmetrically, and each locking part 3 has a groove 13 for the locking block 7 to slide into. The groove 13 has a retaining groove wall 14 at the end of the sliding path. The locking part 3 has a limiting groove wall 15 on one side of the groove 13 to restrict the locking block 7 from disengaging along the flow direction of the cavity. This is a specific structure of the groove 13. In this embodiment, the groove 13 is cuboid in shape and has only two continuous slots. After circumferential rotation, it also meets the locking and limiting requirements in the relative axial direction, and at the same time has a certain anti-vibration and anti-deviation effect in all directions. The fixing part 9 is provided with a connecting hole 16 for installation. The design of the fixing part 9 allows for threaded connection to make it completely fixed. It should be noted that the fixing part 9 can be connected to the housing 10 or the cover plate 11, depending on the actual production.
[0020] The tube body 2 has a stepped radial cross-section near the end of the sleeve part 8. This stepped structure facilitates assembly and also helps form a labyrinth seal. The mounting part 4 has a reinforcing edge 17 at the edge where the slot 6 is located, and the slot 6 extends to the reinforcing edge 17. The design of the reinforcing edge 17 avoids excessive thickness of the mounting part 4, strengthens the local structure, and reduces costs.
[0021] Operating procedure: Install the mounting base 1 on the opening 12 of the housing 10, slide and limit it; insert the tube 2 into the mounting base 1 and rotate to adjust the direction; use fasteners to reinforce the connection between the fixing part 9 and the screw hole at the housing 10 or the cover plate 11.
[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. At the same time, the basic principles, main features, and advantages of this utility model have been shown and described above, which should be understood by those skilled in the art.
Claims
1. A drainage pump outlet installation device, characterized in that, The device includes a mounting base and a tube body. The mounting base has a snap-fit part, a mounting part, and an inner connection part that are integrally connected in sequence. The mounting part has through slots on opposite side walls. The inner connection part has a hollow cylindrical structure. A cavity is provided between the mounting base and the tube body. The tube body has a snap-fit block on its outer wall that engages with the snap-fit part. The snap-fit block and the snap-fit part rotate and engage in the circumferential direction, and the snap-fit block and the snap-fit part are locked and limited in the direction of cavity extension. The tube body has a sleeve part that fits into the cavity of the mounting base. The tube body also has a fixing part on its outer wall for fixed assembly. The device also includes a housing and a cover plate for fixed assembly. One side of the housing has an opening that extends to the outer edge. The snap-fit slot engages with the housing at the opening.
2. The drainage pump outlet installation device as described in claim 1, characterized in that, A one-way valve is also fitted onto the sleeve portion.
3. A drainage pump outlet installation device as described in claim 1 or 2, characterized in that, The inner portion has a stepped distribution in a stepped shape on the radial cross section.
4. The drainage pump outlet installation device as described in claim 3, characterized in that, The sleeve part is provided with an annular groove, and a sealing ring is provided at the annular groove.
5. The drainage pump outlet installation device as described in claim 1, characterized in that, The locking parts are arranged in pairs and symmetrically, and each locking part is provided with a groove for the locking block to rotate and slide into.
6. The drainage pump outlet installation device as described in claim 5, characterized in that, The chute has a retaining groove wall at the end of the sliding path.
7. The drainage pump outlet installation device as described in claim 6, characterized in that, The locking part has a limiting groove wall on one side of the slide groove to prevent the locking block from disengaging along the flow direction of the cavity.
8. The drainage pump outlet installation device as described in claim 1, characterized in that, The fixing part is provided with a connection hole for installation.
9. The drainage pump outlet installation device as described in claim 1, characterized in that, The radial cross-section of the tube near the sleeve end is stepped.
10. The drainage pump outlet installation device as described in claim 1, characterized in that, The mounting part has a reinforcing edge at one end where the slot is located, and the slot extends to the reinforcing edge.