Mounting structure for draining pump of washing machine
By introducing an installation plate and a snap-fit assembly into the washing machine drain pump installation structure, and using a top pin and a pin shaft to drive the connecting rod and L-shaped connecting column, the drain pump can be quickly disassembled and installed, solving the problem of cumbersome maintenance under traditional installation methods and improving maintenance convenience.
Patent Information
- Application Number
- CN202520668784.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-04-10
AI Technical Summary
The traditional installation method of the washing machine drain pump makes maintenance cumbersome, requiring the removal of the rear side panel, making quick replacement and repair difficult.
The system adopts a mounting plate and clamping component structure, and uses a top pin and shaft to drive the connecting rod and L-shaped connecting column, enabling quick disassembly and installation of the drainage pump and simplifying the maintenance process.
The drain pump can be quickly replaced without disassembling the rear panel of the washing machine, improving the convenience and efficiency of maintenance.
Smart Images

Figure CN223974371U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of washing machine drain pump installation, and relates to a washing machine drain pump installation structure. Background Technology
[0002] The drain pump of a washing machine is usually installed in a mounting groove on the lower edge of the washing machine casing. The usual installation method is to use screws to lock the protrusions above and below the drain port of the drain pump onto the inner wall of the casing. During use, the impeller of the drain pump is easily entangled with debris, or the thermal fuse built into the motor windings of the drain pump is easily burned out, thus causing the drain pump to malfunction. The traditional installation method means that when replacing or repairing the drain pump, it is necessary to first unscrew the protruding fixing screws above and below the drain port of the drain pump, then remove the rear panel of the washing machine, and remove the drain pump from the rear of the washing machine. This process is cumbersome and makes repair difficult.
[0003] Therefore, this utility model provides a washing machine drain pump installation structure to solve the above problems. Utility Model Content
[0004] In view of the problems existing in the prior art, this utility model discloses a washing machine drain pump installation structure. The technical solution adopted is as follows: it includes a drain pump, characterized in that: the drain pipe of the drain pump is inserted into the central hole of the mounting plate; the upper and lower sides of the drain pipe outlet of the drain pump are fixedly connected to the upper and lower walls of the central hole of the mounting plate by screws; through holes are symmetrically opened on the left and right sides of the central hole of the mounting plate; top pins are inserted into the through holes; the front end of the top pin is rotatably connected to the outward end of the pin shaft; the opposite inward ends of the left and right pin shafts are movably connected to the clamping assembly; the clamping assembly includes connecting rods movably mounted on the pin shafts on the same side; the opposite ends of the upper and lower connecting rods on the same side are movably mounted on one end of an L-shaped connecting column; the opposite ends of the upper and lower L-shaped connecting columns after bending are respectively mounted together with the two ends of a spring; pins are fixedly connected to the center of the horizontal axis of the upper and lower L-shaped connecting columns; the ends of the upper and lower pins on the same side movably pass through the first fixing ears fixedly installed on the upper and lower edges of the front side wall of the mounting plate; the mounting plate is inserted into the slot of the washing machine casing through the clamping assembly.
[0005] As a preferred embodiment of this utility model, a limiting frame is provided on the rear half of the side wall of the mounting plate. By providing the limiting frame, the mounting plate with the drain pump is easily limited when it is inserted into the slot of the washing machine casing, thereby improving the accuracy of the alignment between the snap-fit components on the mounting plate and the second fixing ears on the upper and lower edges of the slot of the washing machine casing.
[0006] In a preferred embodiment of this utility model, the front end of the top pin is fixedly connected to the bushing, and the bushing is fitted with a pin shaft.
[0007] As a preferred embodiment of this utility model, a stop cap is fixedly provided at one end of the connecting rod fitted by the L-shaped connecting post; by providing the stop cap, the upper and lower connecting rods are prevented from separating from the L-shaped connecting post, thereby improving the stability of use.
[0008] As a preferred embodiment of this utility model, the second fixing ears are fixedly installed on the slot edge of the washing machine casing, which is directly opposite the first fixing ear. By providing the second fixing ears, it is convenient for the mounting plate to be inserted into the washing machine casing, and the pins on the upper and lower parts of the mounting assembly to be inserted into the corresponding second fixing ears, thereby quickly completing the installation of the drain pump on the washing machine casing.
[0009] The beneficial effects of this utility model are as follows: By setting a top pin on the mounting plate, the top pin drives the upper and lower connecting rods to move through the pin shaft. The upper and lower connecting rods respectively pull the upper and lower L-shaped connecting columns to move closer to the center, thereby compressing the spring. This causes the upper and lower pins to be pulled out from the second fixing ears on the upper and lower edges of the washing machine casing slot, thereby realizing the removal of the drain pump along with the installation from the washing machine casing. The drain pump can be easily disassembled, replaced, and installed without disassembling the rear side panel of the washing machine, improving the convenience of drain pump maintenance. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0011] Figure 2 This is a rear view of the overall structure of this utility model;
[0012] Figure 3 This is a schematic diagram of the mounting plate of this utility model;
[0013] Figure 4 This is a schematic diagram of the card mounting component of this utility model.
[0014] In the diagram: 1-Drain pump, 2-Mounting plate, 3-Top pin, 4-Pin shaft, 5-Snap-fit assembly, 6-Washing machine casing, 21-Through hole, 22-First fixing ear, 23-Limit frame, 31-Shaft sleeve, 51-Connecting rod, 52-L-shaped connecting column, 521-Block cap, 53-Spring, 54-Pin, 61-Second fixing ear. Detailed Implementation
[0015] Example 1
[0016] like Figures 1 to 4As shown, the washing machine drain pump installation structure of this utility model adopts the following technical solution: It includes a drain pump 1, whose drain pipe is inserted into the central hole of a mounting plate 2. The upper and lower sides of the drain pipe opening of the drain pump 1 are fixedly connected to the upper and lower walls of the central hole of the mounting plate 2 by screws. Symmetrical through holes 21 are opened on the left and right sides of the central hole of the mounting plate 2. First fixing ears 22 are installed on the left and right sides of the upper and lower edges of the front sidewall of the mounting plate 2. A limiting frame 23 is provided on the rear half of the surrounding sidewall of the mounting plate 2. Top pins 3 are inserted into the through holes 21. The front end of the top pin 3 is fixedly connected to a bushing 31. A pin 4 is installed inside the bushing 31. The left and right ends of the pins 4 facing inward are movably connected to a clamping assembly 5. The clamping assembly 5 includes... The connecting rod 51 on the same side of the pin 4 is movably mounted on the opposite ends of the upper and lower connecting rods 51 on the same side. The opposite ends of the upper and lower connecting rods 51 are respectively movably mounted on one end of the L-shaped connecting post 52. The end of the L-shaped connecting post 52 that is mounted on the connecting rod 51 is fixedly provided with a stop cap 521. The opposite ends of the upper and lower L-shaped connecting posts 52 after being bent are respectively mounted together with the two ends of the spring 53. The center of the horizontal axis of the upper and lower L-shaped connecting posts 52 is fixedly connected to the pin 54. The ends of the upper and lower pins 54 on the same side move through the first fixing ears 22 that are fixedly installed on the upper and lower edges of the front side wall of the mounting plate 2. The mounting plate 2 is inserted into the slot of the washing machine housing 6 through the snap-fit assembly 5. The second fixing ears 61 are respectively fixedly installed on the edge of the slot of the washing machine housing 6 opposite to the first fixing ears 22.
[0017] The working principle of this utility model is as follows: When replacing or repairing the drain pump 1 of the washing machine, open the baffle plate at the lower edge of the washing machine where the drain pump is installed, and then press the top pin 3 with both hands. This causes the left and right top pins 3 to move the pin shaft 4 through the bushing 31. The pin shaft 4 then moves the upper and lower connecting rods 51 mounted on it. The upper and lower connecting rods 51 respectively move the upper and lower L-shaped connecting posts 52 along the mounting plate 2 towards the center, causing the upper and lower L-shaped connecting posts 52 to compress the spring 53. The upper and lower L-shaped connecting posts 52 then move the upper and lower pins 54 towards the center. Pins 54 are pulled out from the second fixing ears 61 on the washing machine casing 6, thereby allowing the mounting plate 2 and the drain pump 1 to be pulled out from the slot in the washing machine casing 6. The relevant connecting pipes and wires on the drain pump 1 can be disconnected to quickly remove the drain pump 1. The upper and lower screws of the drain outlet of the drain pump 1 can be removed to quickly repair or replace the drain pump 1. During installation, simply connect the relevant connecting pipes and wires on the drain pump 1, press the top pin 3 again, insert the mounting plate 2 into the corresponding slot in the washing machine casing 6, and release the top pin 3 to quickly install and fix the drain pump 1.
[0018] Electrical connection methods or structures not described in detail in this article are existing technologies.
[0019] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.
Claims
1. A laundry machine drain pump mounting structure comprising a drain pump (1), characterized by: The sewage pipe of the drainage pump (1) is inserted into the center hole of the mounting plate (2), the upper and lower sides of the sewage pipe opening of the drainage pump (1) are fixedly connected with the upper and lower plate walls of the center hole of the mounting plate (2) through screws, the left and right sides of the center hole of the mounting plate (2) are symmetrically provided with through holes (21), the top pins (3) are inserted into the through holes (21), the front ends of the top pins (3) are rotationally connected with the outward ends of the pin shafts (4), the inward ends of the left and right pin shafts (4) are movably connected with the clamping assemblies (5), the clamping assemblies (5) comprise connecting rods (51) movably sleeved on the same side pin shaft (4), the opposite ends of the same side connecting rods (51) are movably sleeved on one end of the L-shaped connecting columns (52), the opposite ends of the L-shaped connecting columns (52) are sleeved with the two ends of the springs (53), the centers of the horizontal shafts of the L-shaped connecting columns (52) are fixedly connected with the plugs (54), the distal ends of the same side plugs (54) are movably inserted into the first fixed ears (22) fixedly installed on the upper and lower edges of the front side wall of the mounting plate (2), and the mounting plate (2) is inserted into the insertion slot of the washing machine shell (6) through the clamping assemblies (5).
2. A laundry pump mounting structure according to claim 1, characterised in that: The rear half of the side wall of the mounting plate (2) is provided with a limiting frame (23).
3. A laundry pump mounting structure according to claim 1, wherein: The front end of the top pin (3) is fixedly connected with the shaft sleeve (31), and the pin shaft (4) is sleeved in the shaft sleeve (31).
4. The laundry pump mounting structure according to claim 1, characterized in that: The one end of the L-shaped connecting column (52) sleeved with the connecting rod (51) is fixedly provided with a blocking cap (521).
5. The laundry pump mounting structure according to claim 1, characterized in that: The insertion slot edge of the washing machine shell (6) is provided with the second fixed ears (61) corresponding to the first fixed ears (22).