Air chamber guide pipe fixing device for washing machine
By designing a clamping rod and limiting plate structure, combined with the spring's rebound force, the difficulties in disassembly and assembly and the damage to the steel wires caused by traditional fixing methods are solved, achieving detachable connection and stability of the air chamber duct and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING CHOYANG MASCH TECH CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional methods of fixing air chamber ducts in washing machines suffer from problems such as difficulty in disassembly and assembly, damage to steel wires, and short service life.
The structure employs a locking rod and a limiting plate, combined with first and second springs. The locking rod engages with the limiting plate, and the springs provide a detachable connection between the air chamber duct and the air chamber, reducing disassembly difficulty and improving stability.
This enables the air chamber conduit to be reusable, reduces maintenance costs, improves the stability and tightness of the connection, and avoids bolt loosening and wire damage.
Smart Images

Figure CN224212992U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of washing machine accessories technology, specifically to a fixing device for a washing machine air chamber duct. Background Technology
[0002] In modern washing machines, some models are equipped with functional modules involving gas flow or pressure regulation, such as air wash, ultrasonic-assisted cleaning, or vacuum-assisted cleaning. These functions typically require the transmission of gas or control of pressure through air chambers and conduits. However, washing machines generate continuous vibration and shaking during operation. To prevent the air chamber conduit from accidentally dislodging, the connection between the conduit and the air chamber needs to be secured. Traditional methods for connecting the air chamber conduit involve tightening bolts, binding with cable ties, or binding with steel wire. While bolts provide good security, they require tightening each time the machine is disassembled, making maintenance relatively difficult. Cable ties are a one-time fixation method, requiring the ties to be cut when the air chamber conduit needs to be removed. Although steel wire can be reused, each twisting of the wire causes structural damage, leading to breakage with repeated use. Therefore, all of these methods have certain drawbacks. This paper proposes an air chamber conduit fixing device for washing machines to solve these problems. Utility Model Content
[0003] The purpose of this utility model is to provide a fixing device for the air chamber duct of a washing machine to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a washing machine air chamber duct fixing device, comprising an air chamber and a first connecting member pre-fixed on the air chamber, and further comprising a second connecting member, the second connecting member comprising a first connecting portion for connecting the air chamber duct and a second connecting portion for connecting the first connecting member;
[0005] The second connecting part includes a connecting tube, one end of which is fixedly connected to the first connecting part, and a first spring is sleeved on the connecting tube;
[0006] The first connector includes a base tube, which is fixedly connected to the air chamber. Two locking rods are symmetrically fixedly connected to the circumference of the base tube. Limiting heads are fixedly connected to the free ends of the two locking rods. The outer diameter of the first spring is smaller than the outer diameter of the base tube, and the inner diameter of the first spring is larger than the outer diameter of the connecting tube.
[0007] The first connecting part has two limiting plates symmetrically fixedly connected on its circumference, and the limiting plates are recessed to form a groove that matches the locking rod.
[0008] Preferably, the limiting plate has two symmetrical mounting grooves inside, the slot is located between the two mounting grooves, a second spring is fixedly connected inside each of the two mounting grooves, a limiting rod is fixedly connected to the free end of the second spring, the free end of the limiting rod extends to the outside of the mounting groove, and the opposite ends of the two limiting rods form a slope surface.
[0009] Preferably, a movable ring is also fitted onto the connecting pipe, and the first spring is located between the movable ring and the first connecting part.
[0010] Preferably, a movable rubber ring is fitted on the connecting pipe, and the rubber ring is located at the end of the first spring away from the first connecting part.
[0011] Preferably, the first connecting portion includes a base ring, the connecting tube is fixedly connected to one end of the base ring, and two limiting plates are symmetrically fixedly connected to the circumferential surface of the base ring. A tapered tube is fixedly connected to the end of the base ring away from the connecting tube.
[0012] Preferably, multiple flow-blocking rings are fixedly connected one by one on the circumference of the tapered tube, gaps are formed between the multiple flow-blocking rings, and the diameter of the multiple flow-blocking rings gradually decreases from one side closer to the base ring to the other side.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) By setting a locking rod and a limiting plate, the air chamber conduit is connected to the first connecting part. The connecting pipe is inserted into the base pipe and rotated. During the connection process, the first spring will be compressed and engaged with the locking rod and the locking groove on the limiting plate. The first spring generates a rebound force, which connects the base pipe and the connecting pipe, thus completing the connection between the air chamber conduit and the air chamber. When the air chamber conduit needs to be disassembled, only the first connecting part needs to be rotated. This allows the device to be used repeatedly without the need to tighten the bolts, reducing the cost of use and the difficulty of disassembly in the later stage.
[0015] (2) By setting a second spring and a limiting rod, when the locking rod is engaged with the slot on the limiting plate, the second spring is supported by the mounting slot, and the limiting rod is supported by the second spring, so that the free end of the limiting rod is outside the slot, thereby limiting the locking rod and preventing accidental separation after the locking rod is connected to the slot, thus improving the stability of the air chamber duct after installation. Attached Figure Description
[0016] Figure 1 This is a cross-sectional view of the present invention;
[0017] Figure 2 This is a perspective view of the present utility model;
[0018] Figure 3 This is a perspective view of the air chamber and the first connecting member of this utility model;
[0019] Figure 4 This is a perspective view of the second connector of this utility model;
[0020] Figure 5 This is a cross-sectional view of the tapered tube of this utility model;
[0021] Figure 6 This is a perspective view of the limiting plate of this utility model;
[0022] Figure 7 This is a cross-sectional view of the limiting plate of this utility model;
[0023] Figure 8 This is a cross-sectional view of the base pipe and connecting pipe of this utility model when they are connected;
[0024] In the diagram: 1. Air chamber; 2. First connector; 21. Base pipe; 22. Clamping rod; 23. Limiting head; 3. Second connector; 31. Base ring; 32. Limiting plate; 33. Slot; 34. Limiting rod; 35. Cut-off ring; 36. First spring; 37. Moving ring; 38. Connecting pipe; 39. Rubber ring; 310. Tapered pipe; 311. Mounting groove; 312. Second spring. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1 to 8 An embodiment of this utility model is provided: a washing machine air chamber duct fixing device, including an air chamber 1 and a first connecting member 2 pre-fixed on the air chamber 1, and a second connecting member 3, the second connecting member 3 including a first connecting part for connecting the air chamber duct and a second connecting part for connecting the first connecting member 2;
[0027] The second connecting part includes a connecting tube 38, one end of which is fixedly connected to the first connecting part, and a first spring 36 is sleeved on the connecting tube 38.
[0028] The first connector 2 includes a base tube 21, which is fixedly connected to the air chamber 1. Two locking rods 22 are symmetrically fixedly connected to the circumference of the base tube 21. Limiting heads 23 are fixedly connected to the free ends of the two locking rods 22. The outer diameter of the first spring 36 is smaller than the outer diameter of the base tube 21, and the inner diameter of the first spring 36 is larger than the outer diameter of the connecting tube 38.
[0029] The first connecting part has two limiting plates 32 fixedly connected to the circumferential surface, and the limiting plates 32 are recessed to form a groove 33 that matches the locking rod 22.
[0030] With the above technical solution, when personnel need to connect the air chamber conduit to the air chamber 1, they connect the air chamber conduit to the first connecting part, and then tie a cable tie or wire to the connection point between the air chamber conduit and the first connecting part, thereby fixing the air chamber conduit to the first connecting part. Then, the first connecting part is moved, which in turn moves the connecting tube 38, inserting it into the bottom of the base tube 21 until the limiting plate 32 is on one side of the locking rod 22. When the connecting tube 38 is inserted into the base tube 21, the base tube 21 compresses the first spring 36, causing the first spring 36 to rebound, thus rotating the first connecting tube. The first connecting part drives the limiting plate 32 to rotate, causing the slot 33 on the limiting plate 32 to engage with the locking rod 22, and the limiting head 23 abuts against the limiting plate 32. Since the first spring 36 has a rebound tendency, it abuts against the base tube 21, thereby completing the connection between the first connecting part and the base tube 21, and thus completing the connection between the air chamber duct and the air chamber 1. When personnel need to disassemble the air chamber duct, they only need to rotate the first connecting part, causing the first connecting part to drive the limiting plate 32 to rotate, so that the limiting plate 32 separates from the locking rod 22, and the first spring 36 rebounds, thus separating the air chamber duct from the air chamber 1.
[0031] Furthermore, after the lever 22 engages with the slot 33, to prevent the lever 22 from accidentally separating from the slot 33, such as... Figures 6-7 As shown, two mounting grooves 311 are symmetrically formed inside the limiting plate 32, and the slot 33 is located between the two mounting grooves 311. A second spring 312 is fixedly connected inside each of the two mounting grooves 311. A limiting rod 34 is fixedly connected to the free end of the second spring 312. The free end of the limiting rod 34 extends to the outside of the mounting groove 311, and the opposite ends of the two limiting rods form a slope surface.
[0032] In this embodiment, when the locking rod 22 is engaged with the locking groove 33, the second spring 312 is supported by the mounting groove 311 on the limiting plate 32, and the limiting rod 34 is supported by the second spring 312, so that the free end of the limiting rod 34 is inside the locking groove 33. The limiting rod 34 blocks the locking rod 22, thereby preventing the locking rod 22 from accidentally falling out of the locking groove 33 and improving the tightness of the connection between the air chamber duct and the air chamber 1.
[0033] When the first spring 36 contacts the base tube 21, in order to improve the uniformity of the force on the first spring 36, such as Figure 4 As shown, a movable ring 37 is also fitted on the connecting pipe 38, and the first spring 36 is located between the movable ring 37 and the first connecting part.
[0034] In this embodiment, when the second spring 312 moves, the moving ring 37 cooperates to make the moving ring 37 more stable when it contacts the base tube 21.
[0035] Furthermore, to increase the stability between the connecting pipe 38 and the base pipe 21, such as Figure 4 As shown, a movable rubber ring 39 is fitted on the connecting pipe 38, and the rubber ring 39 is located at the end of the first spring 36 away from the first connecting part.
[0036] Specifically, in one embodiment, regarding the aforementioned first connection portion, as... Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the first connecting part includes a base ring 31, a connecting pipe 38 fixedly connected to one end of the base ring 31, and two limiting plates 32 symmetrically fixedly connected to the circumferential surface of the base ring 31. A tapered pipe 310 is fixedly connected to the end of the base ring 31 away from the connecting pipe 38.
[0037] In this embodiment, when personnel need to connect the air chamber conduit to the first connecting part, the air chamber conduit is connected to the tapered tube 310, and then a cable tie or wire is tied to the air chamber conduit and the first connecting part, thereby completing the connection between the tapered tube 310 and the air chamber conduit.
[0038] After the air chamber conduit is connected to the conical tube 310, in order to further increase the tightness of the connection between the air chamber conduit and the conical tube 310, such as... Figure 4 and Figure 5 As shown, multiple flow-blocking rings 35 are fixedly connected one by one on the circumference of the tapered tube 310. A gap is formed between the multiple flow-blocking rings 35, and the diameter of the multiple flow-blocking rings 35 gradually decreases from one side close to the base ring 31 to the other side.
[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A device for fixing an air chamber duct in a washing machine, characterized in that: It includes an air chamber (1) and a first connector (2) pre-fixed to the air chamber (1), and also includes a second connector (3), the second connector (3) including a first connecting portion for connecting the air chamber conduit and a second connecting portion for connecting the first connector (2); The second connecting part includes a connecting tube (38), one end of which is fixedly connected to the first connecting part, and a first spring (36) is sleeved on the connecting tube (38); The first connector (2) includes a base tube (21), which is fixedly connected to the air chamber (1). Two locking rods (22) are symmetrically fixedly connected to the circumference of the base tube (21). Limiting heads (23) are fixedly connected to the free ends of the two locking rods (22). The outer diameter of the first spring (36) is smaller than the outer diameter of the base tube (21), and the inner diameter of the first spring (36) is larger than the outer diameter of the connecting tube (38). The first connecting part has two limiting plates (32) fixedly connected to its circumference, and the limiting plates (32) are recessed to form a groove (33) that matches the locking rod (22).
2. The air chamber duct fixing device for a washing machine according to claim 1, characterized in that: The limiting plate (32) has two symmetrical mounting grooves (311) inside. The slot (33) is located between the two mounting grooves (311). A second spring (312) is fixedly connected inside each of the two mounting grooves (311). A limiting rod (34) is fixedly connected to the free end of the second spring (312). The free end of the limiting rod (34) extends to the outside of the mounting groove (311), and the opposite ends of the two limiting rods (34) form a slope.
3. A washing machine air chamber duct fixing device according to claim 1 or 2, characterized in that: The connecting pipe (38) is also fitted with a movable ring (37), and the first spring (36) is located between the movable ring (37) and the first connecting part.
4. The air chamber duct fixing device for a washing machine according to claim 1, characterized in that: A movable rubber ring (39) is fitted on the connecting pipe (38), and the rubber ring (39) is located at the end of the first spring (36) away from the first connecting part.
5. A washing machine air chamber duct fixing device according to claim 1, characterized in that: The first connecting part includes a base ring (31), the connecting tube (38) is fixedly connected to one end of the base ring (31), and two limiting plates (32) are symmetrically fixedly connected to the circumferential surface of the base ring (31). A tapered tube (310) is fixedly connected to the end of the base ring (31) away from the connecting tube (38).
6. A washing machine air chamber duct fixing device according to claim 5, characterized in that: Multiple flow-blocking rings (35) are fixedly connected one by one on the circumference of the tapered tube (310). A gap is formed between the multiple flow-blocking rings (35), and the diameter of the multiple flow-blocking rings (35) gradually decreases from one side close to the base ring (31) to the other side.