Magnetic stopper

Abstract

The utility model relates to the technical field of household articles, in particular to a magnetic stopper, which comprises a corrugated pipe capable of elastically stretching and bending deformation, and first magnetic parts are fixed at two ends of the corrugated pipe; the magnetic limiter is further provided with at least two second magnetic parts which are used for being matched with the first magnetic parts at the two ends of the corrugated pipe in a magnetic mode respectively. The different second magnetic attraction pieces are fixed to the door cover and the equipment shell, when the door cover needs to be kept in an open state, the two ends of the corrugated pipe make contact with the side wall of the equipment shell and the inner wall of the door cover needing to be limited respectively, and at the moment, the first magnetic attraction pieces arranged at the two ends of the corrugated pipe attract the different second magnetic attraction pieces respectively; therefore, the door cover needing to be limited is opened, limiting of the door cover is achieved, the door cover is always kept in a certain open state, and ventilation and drying are facilitated. And moreover, after force is applied to the door cover when the door cover is touched by external force by mistake, the door cover is buffered and decompressed under the action of elastic stretching and bending deformation of the corrugated pipe, so that the safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household articles, especially relates to a magnetic attraction position limiter. BACKGROUND

[0002] In the prior art, position limiters are widely used in various types of equipment, especially in the technical field of household articles, such as door cover position limiting devices of household appliances such as drum washing machines and dryers. Traditional position limiters are mostly made of metal materials, such as metal springs or metal elastic strips as the main elastic components. However, such position limiters made of metal materials have obvious defects in actual use.

[0003] In the use scenario of household appliances, the equipment is often in a humid environment, and may even directly contact water. Metal materials are prone to rust after long-term contact with water or steam. Rust not only affects the appearance of the position limiter, but more seriously, it can cause the internal structure to be damaged, the elastic performance to be reduced, and even the position limiting function to be completely lost, so that the door cover cannot be pried open. Therefore, the present application provides a magnetic attraction position limiter to solve the above technical problems. SUMMARY

[0004] The utility model aims at the deficiency of prior art to provide a magnetic attraction position limiter to solve the technical problem that the existing position limiter is prone to rust after contacting water.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] A magnetic attraction position limiter comprises a bellows capable of elastic expansion and bending deformation, and first magnetic attraction members are fixed at both ends of the bellows. The magnetic attraction position limiter is further provided with at least two second magnetic attraction members for magnetic attraction cooperation with the first magnetic attraction members at both ends of the bellows.

[0007] Further, the bellows is a silica gel tube.

[0008] Further, the outer tube wall of the bellows is provided with a plurality of arranged protruding portions, and the cross section of the protruding portions along the length direction of the bellows can be rectangular or trapezoidal.

[0009] Further, the protruding portions are annular protrusions or spiral protrusions.

[0010] Further, both ends of the bellows are formed with connecting portions, each connecting portion is provided with a contact head for contacting a different second magnetic attraction member, and the first magnetic attraction members at both ends of the bellows are arranged in different contact heads.

[0011] Further, the contact head is adhesively connected with the connecting portion.

[0012] Further, a connecting groove is formed on one end face of the contact head in the thickness direction, and the connecting portion is embedded in the connecting groove.

[0013] Further, the circumferential surface of the connecting portion is formed with a ring-shaped groove.

[0014] Further, the contact head is integrally formed with the connecting portion.

[0015] Further, the first magnetic attraction member is a sheet-shaped magnet with an outer diameter smaller than the cross-sectional dimension of the contact head; and the second magnetic attraction member is a magnetic attraction sheet.

[0016] The magnetic attraction positioner has the advantages that: in use, different second magnetic attraction members are first fixed at the door cover and the equipment shell, when it is needed to keep the door cover in an open state, the two ends of the bellows are respectively in contact with the side wall of the equipment shell and the inner wall of the door cover to be limited, at this time, the first magnetic attraction members arranged at the two ends of the bellows are respectively attracted to the different second magnetic attraction members, so that the door cover to be limited is pried open, the limitation of the door cover is realized, the door cover is kept in a certain open state at all times, and ventilation and drying are facilitated.

[0017] In addition, compared with the existing limiters, the bellows are used to replace the traditional elastic metal, water can be prevented, rust can be avoided, the quality of the limiter can be improved, and the limiter is not easy to be damaged. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a perspective view of the magnetic attraction positioner.

[0019] Figure 2 Fig. 2 is an exploded view of the magnetic attraction positioner.

[0020] Figure 3 Fig. 3 is a use state view of the magnetic attraction positioner.

[0021] The reference signs include:

[0022] 1, bellows; 2, protruding portion; 3, connecting portion; 4, contact head; 5, magnet; 6, connecting groove; 7, groove; 8, drum washing machine; 9, door cover; 10, magnetic attraction sheet. DETAILED DESCRIPTION

[0023] The magnetic attraction positioner is described in detail below with reference to the accompanying drawings.

[0024] As shown in the drawings, Figures 1-2As shown, the embodiment of the magnetic attraction position limiter comprises a corrugated pipe 1, which can be a silica gel pipe or a TPE pipe with high elasticity and flexibility, and is made by mold injection molding. The outer pipe wall of the corrugated pipe 1 is provided with a plurality of arranged protruding parts 2, and the cross section of the protruding part 2 along the length direction of the corrugated pipe 1 can be rectangular or trapezoidal. The protruding part 2 is made of different shapes by mold injection, so that the outer pipe wall of the corrugated pipe 1 presents different patterns, and the hand feeling when picking up the position limiter is changed. The protruding part 2 is annular or spiral, the annular protruding part is uniformly distributed, which provides the corrugated pipe 1 with axial compression or stretching ability, and also provides bending or bending ability to adapt to the environment required by the position limiter, and how to achieve the limiting effect is described below. In addition, the spiral protruding part is a continuous spiral protruding structure, which can not only maintain the above-mentioned abilities of the annular protruding part, but also optimize the circumferential flexibility. Compared with the existing position limiter, the silica gel is used instead of the traditional elastic metal, which can not only prevent water and avoid rust, but also improve the quality of the position limiter and is not easy to be damaged.

[0025] Further, the connecting part 3 is formed at both ends of the corrugated pipe 1, each connecting part 3 is provided with a contact head 4 for contacting the object to be limited, and each contact head 4 is embedded with a magnet 5 inside, and the magnet 5 is used for attracting the object to be limited, so as to attract the position limiter to the object to be limited, and the object to be limited is opened at the same time. Limiting treatment. The contact head 4 is a silica gel head, which is cylindrical, circular and polygonal, etc., and the contact head 4 is made by mold injection molding outside the magnet 5, so that the contact head 4 and the magnet 5 are difficult to separate. In practice, the contact head 4 can be integrally formed with the connecting part 3, and of course the contact head 4 can be bonded with the connecting part 3 by silica gel adhesive (glue); specifically, one of the end faces of the contact head 4 is formed with a connecting groove 6 for embedding the connecting part 3, and the circumferential surface of the connecting part 3 and the groove wall in the connecting groove 6 are coated with adhesive, and then the connecting part 3 is embedded in the connecting groove 6, so that the connecting part 3 is bonded with the connecting groove 6. By providing the connecting groove 6, the structural stability and product quality of the connecting part 3 after bonding with the contact head 4 are improved, so that the contact head 4 is not easy to separate. In addition, after embedding the connecting part 3 in the connecting groove 6, even if it is not bonded by silica gel adhesive (glue), it can also set the contact head 4 with the magnet 5 at both ends of the corrugated pipe 1 by interference fit.

[0026] In the embodiment, the circumferential surface of the connecting part 3 is formed with an annular groove 7, which enables the adhesive to be fully attached to the circumferential surface of the connecting part 3, and also improves the amount of adhesive coating, and further improves the bonding effect of the connecting part 3 and the contact head 4.

[0027] The magnet 5 is cylindrical, flaky or polyhedral in structure, and its outer diameter or side length is smaller than the cross-sectional dimension of the contact head 4. The geometric center of the magnet 5 coincides with the geometric center of the contact head 4, or the magnet 5 is eccentrically arranged along the axial / radial direction of the contact head 4, so that the contact head 4 can wrap the entire magnet 5. After the limit stopper is used for a long time, the magnet 5 will not fall out of the contact head 4, thereby improving the quality of the limit stopper.

[0028] As shown in Figure 3 The limit stopper can be used on a drum washing machine 8, a dryer and other household appliances that need to be ventilated with the door open. The limit stopper further comprises at least two magnetic attraction pieces 10, which are respectively attached to the side wall of the outer shell of the drum washing machine 8 and the inner side wall of the door cover 9. Before using the limit stopper, the magnetic attraction pieces 10 are first attached to the side wall of the outer shell of the drum washing machine 8 and the inner side wall of the door cover 9 (by glue / tape). Then, the contact heads 4 at both ends of the limit stopper are respectively contacted with different magnetic attraction pieces 10. Under the magnetic attraction of the magnet 5, the contact head 4 at one end of the limit stopper is magnetically attracted to the magnetic attraction piece 10 on the side wall of the outer shell of the drum washing machine 8, and the contact head 4 at the other end is magnetically attracted to the magnetic attraction piece 10 on the inner side wall of the door cover 9. Thus, the door cover 9 of the drum washing machine 8 is pried open and limited, so that the door cover 9 always remains in an open state, facilitating ventilation and drying. In addition, when the door cover 9 is accidentally hit by an external force, the bellows 1 can be axially compressed or stretched, thereby buffering and decompressing the door cover 9, improving safety. The magnetic attraction piece 10 can have a thickness of 1mm. Even if the magnetic attraction piece 10 is not removed, the door cover 9 can still be normally closed.

[0029] As can be seen from the above, the limit stopper has the above-mentioned excellent characteristics, and can improve the performance of the prior art and has practicality in use, becoming a product with high practical value.

[0030] The above content is only a preferred embodiment of the present application. For those skilled in the art, according to the idea of the present application, the specific implementation mode and application range can be changed. The content of the specification should not be understood as a limitation of the present application.

Claims

1. A magnetic limiter, characterized in that: It includes a corrugated tube (1) that is capable of elastic expansion and contraction and bending deformation, with first magnetic attractors fixed at both ends of the corrugated tube (1); the magnetic limiter is also equipped with at least two second magnetic attractors, which are used to magnetically attract and cooperate with the first magnetic attractors at both ends of the corrugated tube (1) respectively.

2. The magnetic limiter according to claim 1, characterized in that: The corrugated pipe (1) is a silicone tube.

3. A magnetic limiter according to claim 2, characterized in that: The outer wall of the corrugated pipe (1) is provided with several protrusions (2) arranged in a row. The cross section of the protrusions (2) along the length of the corrugated pipe (1) can be rectangular or trapezoidal.

4. A magnetic limiter according to claim 3, characterized in that: The protrusion (2) is a ring protrusion or a spiral protrusion.

5. A magnetic limiter according to claim 1, characterized in that: Both ends of the corrugated pipe (1) are formed with connecting parts (3), and each connecting part (3) is provided with a contact head (4) for contacting different second magnetic components respectively. The first magnetic components at both ends of the corrugated pipe (1) are respectively placed in different contact heads (4).

6. A magnetic limiter according to claim 5, characterized in that: The contact head (4) is bonded to the connecting part (3).

7. A magnetic limiter according to any one of claims 5-6, characterized in that: A connecting groove (6) is formed on one end face of the contact head (4) in the thickness direction, and the connecting part (3) is embedded in the connecting groove (6).

8. A magnetic limiter according to claim 7, characterized in that: The circumferential surface of the connecting part (3) is formed with an annular groove (7).

9. A magnetic limiter according to claim 5, characterized in that: The contact head (4) and the connecting part (3) are integrally formed.

10. A magnetic limiter according to claim 1, characterized in that: The first magnetic attractor is a sheet magnet (5), the outer diameter of which is smaller than the cross-sectional size of the contact head (4); the second magnetic attractor is a magnetic sheet (10).

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