Automatic opening and closing structure assembly of umbrella cover in floor drain core

Abstract

The present invention provides an automatic opening and closing structure assembly of an umbrella cover in a floor drain core, which belongs to the field of drainage. The automatic opening and closing structure assembly of an umbrella cover in a floor drain core comprises an umbrella cover, a guide column, at least one first magnet and at least one second magnet, the second magnet is fixed and when there are multiple magnets, they are fixed in parallel, the first magnet moves with the guide column, the umbrella cover has a sealing state position and a reset state position, the bottom surface of the first magnet and the top surface of the second magnet are of the same polarity, when the umbrella cover is in the sealing state position, the bottom of the first magnet has an adsorption portion that protrudes from the bottom surface of the second magnet and has an adsorption tendency with the bottom surface of the second magnet, the top surface of the first magnet is located between the top surface and the bottom surface of the second magnet, when the umbrella cover is in the reset state position, compared with the sealing state position, the adsorption portion protrudes more from the bottom surface of the second magnet, the top surface of the first magnet is closer to the bottom surface of the second magnet, and the top surface of the first magnet repels the bottom surface of the second magnet. This assembly is conducive to enhancing the sealing performance of the umbrella cover and reducing the reset time of the umbrella cover.

Description

Technical Field

[0001] The invention belongs to the field of drainage and relates to an automatic opening and closing structure assembly of an umbrella cover in a floor drain core. Background Art

[0002] The floor drain is an important connection interface between the drainage system and the ground, and is an important component of the drainage system. The odor-proof property of the floor drain is an important consideration indicator for measuring the performance of the floor drain. The odor-proof structure of the current odor-proof floor drain generally includes an umbrella cover assembly and a magnet assembly, which utilizes the principle of like poles repelling each other of magnets to realize the opening and closing of the umbrella cover.

[0003] For example, our company applied for a utility model patent in 2018 with application number 201821188915X and application date July 26, 2018, entitled "A Magnetic Suspended Floor Drain Core with Stable Structure", which records a magnetic suspended floor drain core with stable structure. The floor drain core consists of an upper cover and a lower shell. The upper cover has a water inlet and a water outlet, and the lower shell is provided with a water outlet. The upper cover and the lower shell are connected by threads. An arc cover is provided at the water outlet, and a hollow guide column I is fixedly provided at the lower end of the arc cover. A lower cover body is arranged on the lower shell body, a guide column II is arranged on the lower cover body, and the guide column I extends into the guide column II of the lower cover body; a sealing cover is arranged at the lower end of the arc cover, an annular magnet is arranged in the sealing cover, and three mounting parts evenly distributed along the circumference are arranged at the lower end of the lower cover body, a mounting groove is arranged on each mounting part, a pancake magnet is arranged in the mounting groove, and the pancake magnet is fixed in the mounting groove by a bottom cover matched with the mounting part; the repulsive force between the annular magnet and the three pancake magnets makes the arc cover close to the water outlet to seal the water outlet.

[0004] As shown in the accompanying drawings of the present invention Figure 7 As shown, Figure 7 It is a schematic diagram of the structure of the above patented technical solution. In the above patent, there are two magnets. One magnet is a pancake magnet fixed in the lower cover body, and the other is a ring magnet in the sealing cover. The ring magnet moves with the movement of the guide column I. When the arc cover and the upper cover form a seal, the ring magnet is located above the three pancake magnets. The bottom surface of the ring magnet and the top surface of the pancake magnet are of the same pole. The arc cover is sealed on the top by the principle of repulsion of like poles. When the arc cover is reset after sewage discharge, it is also reset on the top by the principle of repulsion of like poles. In the actual application of the above scheme, since its sealing and resetting are driven by only one side and one stage of the magnet, it results in problems such as loose sealing and slow resetting. Therefore, it is necessary to innovate and improve the current opening and closing structure based on the principle of magnet sealing and resetting. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems existing in the prior art and provide an automatic opening and closing structure assembly of an umbrella cover in a floor drain core, which is conducive to enhancing the sealing performance of the umbrella cover and reducing the reset time of the umbrella cover, thereby solving the problems of poor sealing and slow reset of the existing solutions.

[0006] The objectives of the present invention can be achieved through the following technical solutions: an automatic opening and closing structure assembly of an umbrella cover in a floor drain core, comprising an umbrella cover, a guide column, at least one first magnet and at least one second magnet, the second magnet being fixed and being fixed in parallel when there are multiple magnets, the first magnet moving with the guide column, the umbrella cover having a sealing state position and a reset state position, characterized in that the bottom surface of the first magnet and the top surface of the second magnet are of the same polarity, when the umbrella cover is in the sealing state position, the bottom of the first magnet has an adsorption portion protruding from the bottom surface of the second magnet and having an adsorption tendency with the bottom surface of the second magnet, the top surface of the first magnet is located between the top surface and the bottom surface of the second magnet, when the umbrella cover is in the reset state position, compared with the sealing state position, the adsorption portion protrudes more from the bottom surface of the second magnet, the top surface of the first magnet is closer to the bottom surface of the second magnet, and the top surface of the first magnet repels the bottom surface of the second magnet.

[0007] The umbrella cover is integrated with the guide column. Generally, the first magnet is mounted on the guide column, the second magnet is mounted in the lower shell of the floor drain core and fixed, and the guide column is inserted in the lower shell. The bottom surface of the first magnet and the top surface of the second magnet have the same polarity, and the top surface of the first magnet and the bottom surface of the second magnet have the same polarity.

[0008] The state of the umbrella cover is divided into a sealed state and a reset state. The sealed state refers to the state in which the umbrella cover is not opened. At this time, the bottom of the first magnet has an adsorption part protruding from the bottom surface of the second magnet. The adsorption part and the bottom surface of the second magnet have an attraction effect. Because the second magnet is fixed, the first magnet has an upward force under the action of the adsorption part, and the top of the first magnet is located between the top and bottom surfaces of the second magnet (excluding the state of being located in the middle of the second magnet). Therefore, the second magnet will cause the top of the first magnet to generate an upward force, which together with the upward force of the adsorption part realizes the upward push of the umbrella cover. The principle of the upward force formed by the top of the first magnet at different positions of the second magnet is different, which will be elaborated in detail later.

[0009] The reset state refers to the critical state that the umbrella cover is about to reset after opening and draining. In this state, the adsorption part is away from the bottom surface of the second magnet, and the top surface of the first magnet is closer to the bottom surface of the second magnet, and a repulsive force is formed at the same time. After the drainage is completed, the first magnet rises by relying on the repulsive force. At the same time, the distance between the adsorption part and the bottom surface of the second magnet is shortened until the adsorption part and the bottom surface of the second magnet are attracted to each other. In this process, the top of the first magnet moves toward the top of the second magnet. During this period, an upward force is formed between the top of the first magnet and the second magnet to push the top of the first magnet up. The double forces jointly realize the rapid sealing reset of the umbrella cover and form the sealed state again. The principle of the upward force formed by the top of the first magnet at different positions of the second magnet is different, which will be explained in detail later.

[0010] No matter it is the sealing principle in the sealing state or the resetting principle in the resetting state, it is realized by the bipolar dual-zone principle of the first magnet and the second magnet in different positions, switching back and forth to achieve sealing and resetting, which subverts the traditional working principle that only relies on the repulsion of like poles, and greatly enhances the resetting speed and sealing effect of the umbrella cover.

[0011] In the above-mentioned automatic opening and closing structure assembly of the umbrella cover in the floor drain core, when the umbrella cover is in the sealing state, the top surface of the first magnet is closer to the top surface of the second magnet than the bottom surface of the second magnet, the bottom surface of the first magnet and the bottom surface of the second magnet are attracted to each other, and the top surface of the first magnet and the top surface of the second magnet are attracted to each other.

[0012] In this technical solution, when the umbrella cover is in a sealed state, the top surface of the first magnet is located in the upper half of the second magnet. At this time, the top surface of the first magnet and the top surface of the second magnet are attracted to each other. In the invention patent of "a magnetic levitation floor drain core with stable structure", the arc cover sealing is achieved by relying on the repulsive force of the two magnets, and the force formed by the two magnets when the umbrella cover is sealed has a tendency to move away from each other. The farther away, the worse the repulsive force, which leads to lower pressure on the umbrella cover, and then worse sealing performance. In contrast, in the present technical solution, the adsorption part and the bottom surface of the second magnet are attracted to each other, and the top of the first magnet and the top of the second magnet are also attracted to each other. Not only does it form a bipolar dual-zone drive, but it also cleverly uses the principle that the closer the distance between opposite poles, the stronger the suction force, so that the sealing clamping force at the umbrella cover continues to increase and approaches the maximum value, thereby forming a more solid sealing performance. After the umbrella cover is opened, the first magnet moves down until the top is located at the lower half of the second magnet. At this time, the top of the first magnet and the bottom of the second magnet repel each other. After the sewage is discharged, the umbrella cover is reset, and the top of the first magnet continues to move up, converting the repulsive force into an attractive force, and finally re-sealing is achieved.

[0013] In the above-mentioned automatic opening and closing structure assembly of the umbrella cover in the floor drain core, when the umbrella cover is in the sealing state, the top surface of the first magnet is closer to the bottom surface of the second magnet than the top surface of the second magnet, the bottom surface of the first magnet and the bottom surface of the second magnet attract each other, and the top surface of the first magnet and the bottom surface of the second magnet repel each other.

[0014] In this technical solution, when the umbrella cover is in a sealed state, the top surface of the first magnet is located at the lower half of the second magnet. At this time, the adsorption part and the bottom of the second magnet are mutually attracted, and the top surface of the first magnet and the bottom of the second magnet are mutually repulsive. Therefore, the first magnet also forms an upward force in two areas to achieve effective sealing. When draining, the first magnet moves downward, and the adsorption part moves away from the second magnet. At this time, the repulsive force between the top of the first magnet and the bottom of the second magnet is used to achieve resetting. This technical solution is suitable for floor drain cores with short opening and closing strokes of umbrella covers. Due to the short opening and closing strokes, the adsorption part still forms an attractive force with the bottom of the second magnet when the reset critical value is actually reached.

[0015] In the above-mentioned automatic opening and closing structure assembly of the umbrella cover in the floor drain core, the length of the first magnet is shorter than the length of the second magnet.

[0016] In the above-mentioned automatic opening and closing structure assembly of the umbrella cover in the floor drain core, the first magnet and the second magnet are both cylindrical.

[0017] Cylindrical magnets are preferred.

[0018] In the above-mentioned automatic opening and closing structure assembly of the umbrella cover in the floor drain core, the first magnet and the second magnet are both rectangular parallelepipeds.

[0019] In the above-mentioned automatic opening and closing structure assembly of the umbrella cover in the floor drain core, the number of the first magnet is one, and the number of the second magnets is three and they are distributed in an equilateral triangle.

[0020] In the above-mentioned automatic opening and closing structure assembly of the umbrella cover in the floor drain core, the first magnet is inserted at the center of the equilateral triangle.

[0021] The first magnet is inserted in the center of an equilateral triangle formed by three second magnets, and the force is evenly applied to ensure smooth movement.

[0022] In the above-mentioned automatic opening and closing structure assembly of the umbrella cover in the floor drain core, a first plug hole is provided at the bottom of the guide column, and the first magnet is inserted into the first plug hole.

[0023] The first insertion hole is used for inserting the first magnet.

[0024] In the above-mentioned automatic opening and closing structure assembly of the umbrella cover in the floor drain core, the first magnet and the second magnet are both made of neodymium iron boron material.

[0025] Ru-Fe-B has excellent magnetic properties and meets performance requirements.

[0026] Compared with the existing technology, the automatic opening and closing structure assembly of the umbrella cover in the local leakage core has the following advantages:

[0027] 1. The automatic opening and closing structure assembly of the umbrella cover in the local leakage core adopts a bipolar dual-zone drive design, which subverts the traditional working principle that only relies on the repulsion of the same poles, and greatly enhances the reset speed and sealing effect of the umbrella cover.

[0028] 2. The automatic opening and closing structure assembly of the umbrella cover in the local leakage core adopts the heteropolar structure design, cleverly using the principle that the closer the distance between the heteropolar poles, the stronger the suction force, so that the sealing compression force at the umbrella cover continues to increase and approaches the maximum value, thereby forming a more solid sealing performance.

[0029] 3. The automatic opening and closing structure assembly of the umbrella cover in the local leakage core makes full use of the characteristics of the two poles of the magnet to realize the rapid conversion of attraction or repulsion during the rising and falling process of the first magnet, thereby achieving effective sealing and rapid reset, and the structural design is ingenious. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural cross-sectional view of a floor drain core using the first embodiment.

[0031] Figure 2 The utility model is a schematic diagram of the internal structure of the lower shell of a floor drain core with an automatic opening and closing structure of an umbrella cover in the local drain core.

[0032] Figure 3 The utility model is a cross-sectional view of the internal structure of the lower shell of a floor drain core with an automatic opening and closing structure of an umbrella cover in the local drain core.

[0033] Figure 4 It is a schematic diagram of the positions of the first magnet and the second magnet when the umbrella cover is in the sealed state in the first embodiment.

[0034] Figure 5 Schematic diagram of the positions of the first magnet and the second magnet when the umbrella cover is in the reset state in the first embodiment.

[0035] Figure 6 It is a schematic diagram of the positions of the first magnet and the second magnet when the umbrella cover is in the sealed state in the second embodiment.

[0036] Figure 7 It is a schematic diagram of the positions of the first magnet and the second magnet when the umbrella cover is in the reset state in the second embodiment.

[0037] Figure 8 It is a schematic diagram of the structure of the arc cover when it is sealed in the invention patent "A magnetic levitation floor drain core with stable structure".

[0038] Fig. 9 It is a schematic diagram of the structure when the arc-shaped cover in the invention patent "A magnetically suspended floor drain core with stable structure" is opened.

[0039] List of Reference Numerals

[0040] In the figure:

[0041] 1. Umbrella cover;

[0042] 1a, Sealed state position;

[0043] 1b, reset status bit;

[0044] 2. Guide column;

[0045] 2a, first jack;

[0046] 3. The first magnet;

[0047] 3a, adsorption part;

[0048] 4. Second magnet;

[0049] 5. Lower shell. DETAILED DESCRIPTION

[0050] Embodiment 1

[0051] like Figures 1 to 3 As shown, the automatic opening and closing structure assembly of the umbrella cover in the floor drain core includes an umbrella cover 1, a guide column 2, a first magnet 3 and three second magnets 4. The first magnet 3 and the second magnet 4 are both cylindrical and made of neodymium iron boron. The three second magnets 4 are fixed in parallel and distributed in an equilateral triangle. The first magnet 3 is inserted at the center of the equilateral triangle. The first magnet 3 is inserted in the center of the equilateral triangle formed by the three second magnets 4, and the force is evenly applied to make the movement smooth. A first plug hole 2a is provided at the bottom of the guide column 2, and the first magnet 3 is inserted in the first plug hole 2a. The first magnet 3 moves with the guide column 2. The umbrella cover 1 is integrated with the guide column 2, the first magnet 3 is installed on the guide column 2, the second magnet 4 is installed in the lower shell 5 of the floor drain core and fixed, and the guide column 2 is inserted in the lower shell 5.

[0052] like Figure 4 and Figure 5 As shown, the bottom surface of the first magnet 3 and the top surface of the second magnet 4 have the same pole, and the top surface of the first magnet 3 and the bottom surface of the second magnet 4 have the same pole. In this embodiment, the bottom surface of the first magnet 3 and the top surface of the second magnet 4 are both N poles, and the top surface of the first magnet 3 and the bottom surface of the second magnet 4 are both S poles.

[0053] like Figure 4 , Figure 8 and Fig. 9As shown, the umbrella cover 1 has a sealing state position 1a and a reset state position 1b, wherein the sealing state position 1a refers to a state where the umbrella cover 1 is not opened. When the umbrella cover 1 is in the sealed state position 1a, the bottom of the first magnet 3 has an adsorption portion 3a that protrudes from the bottom surface of the second magnet 4 and has an adsorption tendency with the bottom surface of the second magnet 4. The top surface of the first magnet 3 is located between the top and bottom surfaces of the second magnet 4. Compared with the bottom surface of the second magnet 4, the top surface of the first magnet 3 is closer to the top surface of the second magnet 4. The bottom surface of the first magnet 3 and the bottom surface of the second magnet 4 are respectively the N pole and the S pole, which attract each other. The top surface of the first magnet 3 and the top surface of the second magnet 4 are respectively the S pole and the N pole, which also attract each other. Because the second magnet 4 is fixed, the first magnet has an upward force under the action of the adsorption portion 3a, and the top of the first magnet 3 is attracted to the top of the first magnet 3 and also generates an upward force, which together with the upward force of the adsorption portion 3a realizes the upward push of the umbrella cover 1. In this technical solution, the top surface of the first magnet 3 is located in the upper half of the second magnet 4 and the top surface of the first magnet 3 is 3mm away from the top surface of the second magnet 4. As shown in the attached manual Figure 8 and Fig. 9 As shown, in the invention patent of "a magnetic suspension floor drain core with stable structure", the arc cover sealing is achieved by the repulsive force between the two S poles of the two magnets, and the force formed by the two magnets when the umbrella cover is sealed has a tendency to move away from each other. The farther away, the worse the repulsive force, which leads to a lower top force on the umbrella cover, and then the worse the sealing performance. In contrast, in the present technical solution, the adsorption portion 3a and the bottom surface of the second magnet 4 form an N pole and an S pole to form an attraction, and the top of the first magnet 3 and the top of the second magnet 4 are also attractive forces, which not only forms a bipolar dual-zone drive, but also cleverly uses the principle that the closer the distance between the opposite poles, the stronger the suction force, so that the sealing clamping force at the umbrella cover 1 continues to increase and approaches the maximum value, thereby forming a more solid sealing performance.

[0054] like Figure 5 As shown, the reset state position 1b refers to the critical state that the umbrella cover 1 is about to reset after the sewage discharge is completed. After the umbrella cover 1 is opened, the first magnet 3 moves down until the top is located at the lower half of the second magnet 4, and the adsorption portion 3a is far away from the bottom surface of the second magnet 4, forming the reset state position 1b. Compared with the sealing state position 1a, the adsorption portion 3a protrudes more from the bottom surface of the second magnet 4, and the top surface of the first magnet 3 is 3mm away from the bottom surface of the second magnet 4. At this time, the top of the first magnet 3 and the bottom of the second magnet 4 repel each other. After the sewage discharge is completed, the first magnet 3 rises by the repulsive force. At the same time, the distance between the adsorption portion 3a and the bottom surface of the second magnet 4 is shortened until the adsorption portion 3a and the bottom surface of the second magnet 4 attract each other. In this process, the top of the first magnet 3 moves toward the top of the second magnet 4. During this period, the top of the first magnet 3 and the top of the second magnet 4 attract each other to form an upward force. The two forces jointly realize the rapid sealing reset of the umbrella cover 1, and the sealing state position 1a is formed again.

[0055] No matter it is the sealing principle in the sealing state 1a or the resetting principle in the resetting state 1b, both are realized by the bipolar dual-zone principle of the first magnet 3 and the second magnet 4 in different positions, switching back and forth to realize sealing and resetting, which subverts the traditional working principle that only relies on the repulsion of like poles, and greatly enhances the resetting speed and sealing effect of the umbrella cover 1.

[0056] Embodiment 2

[0057] like Figure 6 and Figure 7 As shown, the difference between this embodiment and the first embodiment is that: when the umbrella cover 1 is in the sealed state position 1a, the top surface of the first magnet 3 is closer to the bottom surface of the second magnet 4 than the top surface of the second magnet 4, the bottom surface of the first magnet 3 and the bottom surface of the second magnet 4 attract each other, and the top surface of the first magnet 3 and the bottom surface of the second magnet 4 repel each other. In this technical solution, the length of the first magnet 3 is shorter than the length of the second magnet 4. When the umbrella cover 1 is in the sealed state, the top surface of the first magnet 3 is located at the lower half of the second magnet 4. At this time, the adsorption portion 3a and the bottom of the second magnet 4 are attractive, and the top surface of the first magnet 3 and the bottom of the second magnet 4 are repelling each other. Therefore, the first magnet 3 also forms an upward force in two regions to achieve effective sealing. When draining, the first magnet 3 moves downward, and the adsorption portion 3a moves away from the second magnet 4. At this time, resetting is achieved by relying on the repulsive force between the top of the first magnet 3 and the bottom of the second magnet 4. This technical solution is suitable for a floor drain core with a short opening and closing stroke of the umbrella cover 1. Due to the short opening and closing stroke, the adsorption portion 3a still forms an attractive force with the bottom of the second magnet 4 when the reset critical value is actually reached.

[0058] The detailed structures, specific component sizes and principles not mentioned in the present application documents are all common knowledge or can be obtained by those skilled in the art through simple selection, and will not be elaborated on.

[0059] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An automatic opening and closing structure assembly of an umbrella cover in a floor drain core, comprising an umbrella cover, a guide column, a first magnet and a second magnet, wherein the second magnet is fixed and when there are multiple magnets, they are fixed in parallel, the first magnet moves with the guide column, the umbrella cover has a sealing state position and a reset state position, and is characterized in that: The number of the first magnet is one, the number of the second magnets is three and they are distributed in an equilateral triangle, the bottom surface of the first magnet and the top surface of the second magnet are of the same pole, when the umbrella cover is in the sealing state position, the bottom of the first magnet has an adsorption portion which protrudes from the bottom surface of the second magnet and has an adsorption tendency with the bottom surface of the second magnet, the top surface of the first magnet is located between the top surface and the bottom surface of the second magnet, when the umbrella cover is in the reset state position, compared with the sealing state position, the adsorption portion protrudes more from the bottom surface of the second magnet, the top surface of the first magnet is closer to the bottom surface of the second magnet, and the top surface of the first magnet repels the bottom surface of the second magnet, when the umbrella cover is in the sealing state position, compared with the top surface of the second magnet, the top surface of the first magnet is closer to the bottom surface of the second magnet, the bottom surface of the first magnet and the bottom surface of the second magnet attract each other, the top surface of the first magnet and the bottom surface of the second magnet repel each other, and the length of the first magnet is shorter than the length of the second magnet.

2. The automatic opening and closing structure assembly of the umbrella cover in the floor drain core according to claim 1 is characterized in that: The first magnet and the second magnet are both cylindrical.

3. The automatic opening and closing structure assembly of the umbrella cover in the floor drain core according to claim 1 is characterized in that: The first magnet and the second magnet are both rectangular parallelepiped.

4. The automatic opening and closing structure assembly of the umbrella cover in the floor drain core according to claim 1 is characterized in that: The first magnet is inserted at the center of an equilateral triangle.

5. The automatic opening and closing structure assembly of the umbrella cover in the floor drain core according to claim 1 is characterized in that: A first plug hole is formed at the bottom of the guide column, and the first magnet is inserted into the first plug hole.

6. The automatic opening and closing structure assembly of the umbrella cover in the floor drain core according to claim 1 is characterized in that: The first magnet and the second magnet are both made of neodymium iron boron material.

Images