Connecting structure for water level sensor and hose of washing machine

Abstract

The utility model belongs to the technical field of water level sensors, and particularly relates to a connecting structure of a water level sensor and a hose of a washing machine, which comprises a sensor shell and a connecting hose, the connecting hose is sleeved on the outer surface of a connecting pipe of the sensor shell, and a quick mounting mechanism is arranged on the outer surface of the connecting hose. The quick-mounting mechanism comprises a holding hoop, the holding hoop is connected to the outer surface of the connecting hose in a sleeving mode, and when the diameter of the holding hoop shrinks, the connecting hose is held to the outer surface of the connecting pipe of the sensor shell. According to the connecting structure for the water level sensor and the hose of the washing machine, the spring piece is tightly supported in the movable groove, contraction of the hoop can be achieved along with screwing of the fixing nut, the hoop extrudes the enclasping hoop to contract, and then under protection of the sponge sleeve, the closed hoop and the enclasping hoop can enclasp the connecting hose; the washing machine water level sensor is connected with the hose, and later dismounting is also convenient.

Description

Technical Field

[0001] This utility model relates to the field of water level sensor technology, and in particular to a connection structure between a washing machine water level sensor and a hose. Background Technology

[0002] The water level sensor is a key component in a washing machine, responsible for detecting changes in the water level in the washing tank. When the water level reaches a preset value, the sensor sends an electrical signal to the washing machine's control system, helping to control the water flow in and out to achieve automatic water level control. The water level sensor is typically connected to the water tank inside the washing machine via a flexible hose. The main function of this hose is to transmit the water pressure (or liquid level) in the tank to the water level sensor. Based on changes in the water level, the sensor senses the corresponding pressure or water level signal and provides feedback. The hose performs both liquid conduction and pressure transmission in this process.

[0003] Chinese patent CN222809737U discloses a washing machine water level sensor with a stable structure. The mounting component is secured relative to the second housing by a fastening base. A shock-absorbing plate is clipped onto the side of the mounting component, allowing the mounting component to be fixed to the washing machine through the mounting hole. The shock-absorbing plate can then provide shock absorption. A rotating connector is connected to the connecting pipe, and the hose is fixed to the connecting pipe through the rotating connector. The rotatable nature of the rotating connector allows the hose fixing angle to be adjusted, making the water level sensor body more reliable in use and thus completing a series of tasks.

[0004] However, the connection method of the hose in the above technical solution is not specifically disclosed. Generally, the hose is fixed to the sensor connecting tube by glue or wrapped with waterproof tape. However, the above connection method is not stable and has poor sealing effect. Therefore, the present invention solves the shortcomings of the above technical solution. Utility Model Content

[0005] Based on the aforementioned technical problems, this utility model proposes a connection structure between a washing machine water level sensor and a hose.

[0006] This utility model proposes a connection structure between a washing machine water level sensor and a hose, including a sensor housing and a connecting hose. The connecting hose is sleeved on the outer surface of the connecting tube of the sensor housing. A quick-release mechanism is provided on the outer surface of the connecting hose. The quick-release mechanism includes a clamping clamp, which is sleeved on the outer surface of the connecting hose and clamps the connecting hose tightly on the outer surface of the connecting tube of the sensor housing when its diameter contracts.

[0007] Preferably, the quick-installation mechanism further includes a sponge sleeve that is movably fitted onto the outer surface of the connecting hose, the inner surface of the clamping clamp slidingly contacting the outer surface of the sponge sleeve, and the connecting hose being made of PVC.

[0008] Through the above technical solution, the outer surface of the connecting hose needs to be stressed to be able to hold tightly to the outer surface of the connecting tube of the sensor housing. In order to avoid deformation of the outer surface of the connecting hose and to provide heat insulation protection for the outer surface of the connecting hose, a sponge sleeve is added to the outer surface of the connecting hose to provide indirect protection. At the same time, the material of the connecting hose is PVC, which gives the connecting hose good corrosion resistance, low cost and strong pressure resistance.

[0009] Preferably, the quick-installation mechanism further includes a clamp that is slidably sleeved on the outer surface of the clamping hoop, and both ends of the clamp are provided with limiting ears.

[0010] With the above technical solution, the clamping hoop is designed with a flexible opening, which makes it easy to fit onto the outer surface of a connecting hose of any diameter. In order for the clamping hoop to retract and achieve a tightening effect, the clamp is also designed with a flexible opening and is positioned opposite to the clamping hoop, so that the two form a closed ring. When the clamp retracts, it can squeeze the clamping hoop to tighten the connecting hose, and the limiting ear can limit the range of motion of the clamping hoop to prevent the clamp from deviating.

[0011] Preferably, the quick-installation mechanism further includes mounting lugs that are symmetrically distributed and fixedly connected to the upper surface of the clamp. The mounting lugs have movable grooves inside, and fixed bolts slide into the movable grooves. Fixed nuts are threaded onto the outer surface of the fixed bolts.

[0012] In order to compress and shrink the opening of the clamp to tighten the connecting hose together with the clamping clamp, the fixing nut is rotated to advance on the outer surface of the fixing bolt, thereby squeezing the two mounting lugs together to achieve the compression of the clamp.

[0013] Preferably, the quick-installation mechanism further includes a spring plate that slides into the inner surface of the movable slot, and the outer surface of the fixing bolt slides through the through hole in the surface of the spring plate.

[0014] Through the above technical solution, in order to achieve the retraction of the clamp by tightening the fixing nut, the spring plate is used to support it in the movable groove. Thus, the fixing bolt can be mounted on the surface of the mounting lug. As the fixing nut is tightened, the clamp can be retracted, and the clamp squeezes and tightens the clamp.

[0015] Preferably, the quick-release mechanism further includes a limiting piece that slides in contact with the inner wall of the movable groove. The middle connecting piece of the limiting piece has a through-hole. The inner surface of the movable hole is movably sleeved with the outer surface of the fixing bolt. One side surface of the limiting piece slides in contact with one side surface of the spring plate.

[0016] With the above technical solution, in order to prevent the clamp and holding clamp from loosening due to stripping of the fixing nut, the contact surface between the limiting plate and the spring plate is made of rubber. As the fixing nut is turned, the limiting plate is pressed against the surface of the spring plate. Before it is pressed against the spring plate, the limiting plate moves downward so that the bent part on the front side of the limiting plate hooks onto the front surface of the spring plate, thereby preventing the limiting plate from moving.

[0017] Preferably, the rear connecting piece of the limiting piece has a sliding hole, the inner surface of the sliding hole is slidably sleeved with the outer surface of the fixing bolt, and one side surface of the rear connecting piece of the limiting piece is in sliding contact with one side surface of the fixing nut.

[0018] In order to further prevent the fixing nut from stripping, the rear connecting piece of the limiting piece will press against the rear of the fixing nut after the fixing nut is tightened.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. By setting up a quick-connect mechanism, the connecting hose can be quickly and sealed to the water level sensor connecting pipe. During the adjustment process, the spring plate is tightened in the movable groove. As the fixing nut is turned, the clamp can be contracted, and the clamp squeezes and tightens the clamp. Then, under the protection of the sponge sleeve, the closed clamp and tightening clamp can hold the connecting hose tightly, realizing the connection between the washing machine water level sensor and the hose. It is also convenient to remove later.

[0021] 2. By setting a limiting piece, the fixing nut can be prevented from loosening. During the adjustment process, as the fixing nut is turned, the limiting piece is pressed against the surface of the spring sheet. Before it is pressed against the surface, the limiting piece moves downward so that the bent part on the front side of the limiting piece hooks onto the front surface of the spring sheet, thereby preventing the limiting piece from moving. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the connection structure between a washing machine water level sensor and a hose proposed in this utility model;

[0023] Figure 2 This is a perspective view of the sponge sleeve structure of the connection structure between the water level sensor and the hose in a washing machine proposed in this utility model;

[0024] Figure 3 This is a perspective view of the clamping hoop structure of the connection structure between the water level sensor and the hose of a washing machine proposed in this utility model;

[0025] Figure 4 This is a perspective view of a spring sheet structure for connecting a washing machine water level sensor and a hose, as proposed in this utility model.

[0026] Figure 5This is a perspective view of a clamp structure for connecting a washing machine water level sensor and a hose, as proposed in this utility model.

[0027] Figure 6 This is a three-dimensional view of the limiting plate structure of the connection structure between the water level sensor and the hose of a washing machine proposed in this utility model.

[0028] In the diagram: 1. Sensor housing; 2. Connecting hose; 3. Clamping clamp; 4. Sponge sleeve; 5. Clamp; 6. Limiting ear; 7. Mounting ear block; 8. Movable groove; 9. Fixing bolt; 10. Fixing nut; 11. Spring plate; 12. Limiting plate; 13. Movable hole; 14. Sliding hole. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Reference Figures 1-6 A connection structure for a washing machine water level sensor and a hose includes a sensor housing 1 and a connecting hose 2. The connecting hose 2 is sleeved on the outer surface of the connecting tube of the sensor housing 1. A quick-release mechanism is provided on the outer surface of the connecting hose 2. The quick-release mechanism includes a clamping clamp 3. The clamping clamp 3 is sleeved on the outer surface of the connecting hose 2, and when its diameter is reduced, it clamps the connecting hose 2 tightly on the outer surface of the connecting tube of the sensor housing 1.

[0031] The outer surface of the connecting hose 2 needs to be subjected to force to tightly grip the outer surface of the connecting tube of the sensor housing 1. In order to avoid deformation of the outer surface of the connecting hose 2 and to provide heat insulation protection for the outer surface of the connecting hose 2, the quick-release mechanism also includes a sponge sleeve 4 that is movably fitted onto the outer surface of the connecting hose 2. The inner surface of the clamping clamp 3 slides in contact with the outer surface of the sponge sleeve 4. The material of the connecting hose 2 is PVC. The addition of the sponge sleeve 4 to the outer surface of the connecting hose 2 provides indirect protection. At the same time, the material of the connecting hose 2 is PVC, which gives the connecting hose 2 good corrosion resistance, low cost and strong pressure resistance.

[0032] The clamping clamp 3 is designed with a hinged opening, which allows it to be easily fitted onto the outer surface of the connecting hose 2 of any diameter. In order for the clamping clamp 3 to retract and achieve a clamping effect, the quick-release mechanism also includes a clamp 5 that is slidably fitted onto the outer surface of the clamping clamp 3. Both ends of the clamp 5 are provided with limiting ears 6. The clamp 5 is also designed with a hinged opening and is positioned opposite to the clamping clamp 3, so that the two form a closed ring. When the clamp 5 is retracted, it can squeeze the clamping clamp 3 to clamp the connecting hose 2. The limiting ears 6 can limit the range of motion of the clamping clamp 3 to prevent the clamp 5 from deviating.

[0033] In order to compress and shrink the opening of the clamp 5, thereby tightening the connecting hose 2 together with the clamping clamp 3, the quick-installation mechanism also includes mounting lugs 7 that are symmetrically distributed and fixedly connected to the upper surface of the clamp 5. The mounting lugs 7 have movable grooves 8 inside, and fixing bolts 9 slide into the movable grooves 8. Fixing nuts 10 are threadedly connected to the outer surface of the fixing bolts 9. By rotating the fixing nuts 10, they advance on the outer surface of the fixing bolts 9, thereby squeezing the two mounting lugs 7 closer together and realizing the contraction of the clamp 5.

[0034] In order to achieve the retraction of the clamp 5 by tightening the fixing nut 10, the quick-installation mechanism also includes a spring plate 11 that slides into the inner surface of the movable groove 8. The outer surface of the fixing bolt 9 slides through the through hole opened in the surface of the spring plate 11 and is tightened in the movable groove 8 by the spring plate 11. Thus, the fixing bolt 9 can be mounted on the surface of the mounting lug 7. As the fixing nut 10 is tightened, the clamp 5 can be retracted, and the clamp 5 squeezes and tightens the clamp 3.

[0035] To prevent the clamp 5 and the holding clamp 3 from loosening due to stripping of the fixing nut 10, the quick-release mechanism also includes a limiting piece 12 that slides in contact with the inner wall of the movable groove 8. The middle connecting piece of the limiting piece 12 has a through-hole 13. The inner surface of the movable hole 13 is movably sleeved with the outer surface of the fixing bolt 9. One side surface of the limiting piece 12 slides in contact with one side surface of the spring plate 11. The contact surface between the limiting piece 12 and the spring plate 11 is made of rubber. As the fixing nut 10 is turned, the limiting piece 12 presses against the surface of the spring plate 11. Before pressing against the surface, the limiting piece 12 moves downward, so that the bent part on the front side of the limiting piece 12 hooks onto the front surface of the spring plate 11, thereby preventing the limiting piece 12 from moving.

[0036] To further prevent the fixing nut 10 from slipping, the rear connecting piece of the limiting piece 12 is provided with a sliding hole 14. The inner surface of the sliding hole 14 is slidably sleeved with the outer surface of the fixing bolt 9, and one side surface of the rear connecting piece of the limiting piece 12 is in sliding contact with one side surface of the fixing nut 10.

[0037] By setting a quick-connect mechanism, the connecting hose 2 can be quickly and sealed to the water level sensor connecting pipe. During the adjustment process, the spring plate 11 is tightened in the movable groove 8. As the fixing nut 10 is turned, the clamp 5 can be contracted, and the clamp 5 squeezes the clamping hoop 3 to contract. Then, under the protection of the sponge sleeve 4, the closed clamp 5 and clamping hoop 3 can hold the connecting hose 2 tightly, realizing the connection between the washing machine water level sensor and the hose. It is also convenient to remove later.

[0038] Working principle: In a specific embodiment of this utility model, after the connecting hose 2 is sleeved on the outer surface of the sensor's connecting tube, the sponge sleeve 4 is sleeved on the outer surface of the connecting hose 2, and the clamping hoop 3 and clamp 5 are sleeved in sequence. Then, the spring plate 11 is inserted into the movable groove 8, and the fixing bolt 9 is inserted into the through hole of the spring plate 11.

[0039] As the fixing nut 10 is turned, the mounting lug 7 of the clamp 5 can be brought closer together to achieve the retraction of the clamp 5. In turn, when the clamp 5 is retracted, the clamp 5 can squeeze and tighten the clamp 3 to tighten the connecting hose 2.

[0040] At the same time, as the fixing nut 10 is turned, the limiting piece 12 is pressed against the surface of the spring piece 11, and before it is pressed against the surface, the limiting piece 12 moves downward, so that the bent part on the front side of the limiting piece 12 hooks onto the front surface of the spring piece 11, thereby preventing the limiting piece 12 from moving.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A connection structure between a washing machine water level sensor and a connecting hose, comprising a sensor housing (1) and a connecting hose (2), characterized in that: The connecting hose (2) is sleeved on the outer surface of the connecting tube of the sensor housing (1). The outer surface of the connecting hose (2) is provided with a quick-release mechanism, which includes a clamping clamp (3). The clamping clamp (3) is sleeved on the outer surface of the connecting hose (2), and when its diameter is contracted, it clamps the connecting hose (2) tightly on the outer surface of the connecting tube of the sensor housing (1).

2. The connection structure between a washing machine water level sensor and a flexible hose according to claim 1, characterized in that: The quick-installation mechanism also includes a sponge sleeve (4) that is movably fitted onto the outer surface of the connecting hose (2), the inner surface of the clamping clamp (3) slidingly contacts the outer surface of the sponge sleeve (4), and the connecting hose (2) is made of PVC.

3. The connection structure between a washing machine water level sensor and a flexible hose according to claim 2, characterized in that: The quick-release mechanism also includes a clamp (5) that is slidably sleeved on the outer surface of the clamp (3), and both ends of the clamp (5) are provided with limit ears (6).

4. The connection structure between a washing machine water level sensor and a flexible hose according to claim 3, characterized in that: The quick-installation mechanism also includes mounting lugs (7) that are symmetrically distributed and fixedly connected to the upper surface of the clamp (5). The mounting lugs (7) have a movable groove (8) inside, and a fixing bolt (9) slides into the movable groove (8). A fixing nut (10) is threaded onto the outer surface of the fixing bolt (9).

5. The connection structure between a washing machine water level sensor and a flexible hose according to claim 4, characterized in that: The quick-installation mechanism also includes a spring plate (11) that is slidably inserted into the inner surface of the movable groove (8), and the outer surface of the fixing bolt (9) slides through the through hole opened on the surface of the spring plate (11).

6. The connection structure between a washing machine water level sensor and a flexible hose according to claim 5, characterized in that: The quick-installation mechanism also includes a limiting piece (12) that slides in contact with the inner wall of the movable groove (8). The middle connecting piece of the limiting piece (12) has a through-hole (13). The inner surface of the movable hole (13) is movably sleeved with the outer surface of the fixing bolt (9). One side surface of the limiting piece (12) slides in contact with one side surface of the spring piece (11).

7. The connection structure between a washing machine water level sensor and a hose according to claim 6, characterized in that: The rear connecting piece of the limiting piece (12) has a sliding hole (14), the inner surface of the sliding hole (14) is slidably sleeved with the outer surface of the fixing bolt (9), and one side surface of the rear connecting piece of the limiting piece (12) is slidably in contact with one side surface of the fixing nut (10).

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