CN106593257A - door seam - Google Patents

Abstract

A door strip, comprising: the sealing assembly, the external connecting piece and the suction assembly. The sealing assembly comprises a sealing plate and a transition plate, the sealing plate and the transition plate are connected with each other, and the surface of the sealing plate is intersected with the surface of the transition plate; the external piece comprises a first sleeve and a second sleeve, and the first sleeve and the second sleeve are arranged on the transition plate; the suction assembly comprises a rotating plate, a sucker and a hinge, the rotating plate is connected with the transition plate through the hinge, and the sucker is arranged on the rotating plate. Above-mentioned gate seam strip, constitute by seal assembly and actuation subassembly two parts, wherein seal assembly door body left and right sides rotation relatively, actuation subassembly sealing assembly upper and lower rotation relatively, actuation subassembly comprises rigid two closing plates and transition board and sucking disc, has more wear-resisting durable performance, moreover, the steam generator is simple in structure, locate the closing plate during use subaerial interval that makes between ground and the door body and reduce, and the position of the door body is adjustable, actuation subassembly can laminate with seal assembly when the user does not, convenience and practicality.

Description

door seam

technical field

The invention relates to the technical field of doors and windows, in particular to a door seam strip.

Background technique

With the development of science and technology and social economy, the progress of science and technology is affecting the social economy and changing people's way of life. At present, there are gaps between many doors and floors. If you want to prevent outside gas, dust, flies and cockroaches from entering through the gaps, you need to use door gap strips.

In real life, we often need to keep the door open for convenience and ventilation. But currently there are only separate door bottom seals and door stoppers on the market. Most of the door bottom seals on the market are made of rubber that is not wear-resistant and easy to age, and the door stoppers can only be opened at a fixed angle.

Contents of the invention

Based on this, it is necessary to provide a door seam strip for the technical problem of single function and easy aging.

A door seam strip, comprising: a sealing component, an external connection piece, and a suction component. The sealing assembly includes a sealing plate and a transition plate, the sealing plate and the transition plate are connected to each other, the first plane where the surface of the sealing plate is located intersects the second plane where the surface of the transition plate is located; the The outer connecting piece includes a first sleeve and a second sleeve, the first sleeve and the second sleeve are coaxially arranged, and the first sleeve and the second sleeve are respectively arranged on the transition plate The side of the first sleeve and the second sleeve are used for rotational connection with external objects; The plates are connected, and the suction cup is arranged at the bottom of the rotating plate, and the suction cup is used to attract the external plane.

In one embodiment, the length of the rotating plate is equal to the length of the sealing plate.

In one of the embodiments, the opening area of the suction cup is smaller than the area of the rotating plate.

In one embodiment, the rotating plate, the sealing plate and the transition plate are in a T-shaped structure, wherein the transition plate is a vertical part, and the rotating plate and the sealing plate are horizontal part.

In one of the embodiments, the rotating plate, the sealing plate and the transition plate are all rectangular parallelepiped plate structures.

In one embodiment, the included angle between the sealing plate and the transition plate is 90 degrees.

The above-mentioned door seam strip is composed of two parts: a sealing component and a suction component. The sealing component is installed on the door body and connected by an external piece, and can rotate left and right relative to the door body. The suction component is installed on the bottom edge of the back of the sealing component through a hinge. It is hingedly connected with the sealing assembly, and can rotate up and down relative to the sealing assembly. The suction assembly is composed of two hard sealing plates, a transition plate and a suction cup. It has more wear-resistant, durable and durable performance, and has a simple structure. The board is arranged on the ground so that the distance between the ground and the door body is reduced, and the position of the door body can be adjusted. When the user is not in use, the suction component can be attached to the sealing component, which is convenient and practical.

Description of drawings

Fig. 1 is a schematic structural view of a door seam strip in an embodiment;

Fig. 2 is a structural schematic diagram of another viewing angle of the door seam strip in an embodiment;

Fig. 3 is a structural schematic diagram of another viewing angle of the door seam strip in an embodiment;

Fig. 4 is a structural schematic diagram of another viewing angle of the door seam strip in an embodiment;

Fig. 5 is a structural schematic diagram of another viewing angle of the door seam strip in an embodiment;

Fig. 6 is a structural schematic diagram of a door seam strip in another embodiment;

Fig. 7 is a structural schematic diagram of a door seam strip in another embodiment;

Figure 8 is a schematic diagram of the composition and structure of the sealing plate, the transition plate or the rotating plate in one embodiment;

FIG. 9 is a schematic diagram of an enlarged structure of part A in the embodiment shown in FIG. 8 .

detailed description

In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or Elements must have certain orientations, be constructed and operate in certain orientations, and therefore should not be construed as limitations on the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions are for the purpose of illustration only and are not intended to represent the only embodiment.

Please refer to FIG. 1 , which is a schematic structural diagram of a door slit 10 in an embodiment. For example, a door slit 10 includes: a sealing component 110 , an external connecting member 120 and a suction component 130 . The sealing assembly 110 is respectively connected with the external connection part 120 and the suction assembly 130. The external connection part 120 is used for connection and installation on the outside, for example, on a door, on a cabinet, or on a table. The suction assembly 130 is used to absorb the flat surface of the external object, so as to adsorb and fix the suction assembly 130 on the external object.

Please refer to FIG. 2 , which is a structural diagram of another view of the door sill in an embodiment, for example, the sealing assembly 110 includes a sealing plate 111 and a transition plate 112 . For example, the sealing plate 111 and the transition plate 112 are interconnected. For example, the first plane 113 on which the surface of the sealing plate 111 lies intersects the second plane 114 on which the surface of the transition plate 112 lies.

The outer connector 120 includes a first sleeve 121 and a second sleeve 122 . For example, the first sleeve 121 and the second sleeve 122 are arranged coaxially. For example, the first sleeve 121 and the second sleeve 122 are respectively disposed on the side of the transition plate 112 . For example, the first sleeve 121 and the second sleeve 122 are used for rotational connection with external objects.

Please refer to FIG. 2 and FIG. 3 together. For example, the suction component 130 includes a rotating plate 131 , a suction cup 132 and a hinge 133 . For example, the rotating plate 131 is connected to the transition plate 112 through a hinge 133 , the suction cup 132 is disposed on the bottom of the rotating plate 131 , and the suction cup 132 is used to attract the external plane.

The above-mentioned door seam strip is composed of two parts: a sealing assembly 110 and a suction assembly 130, wherein the sealing assembly 110 is installed on the door body and connected by an external piece 120, and can rotate left and right relative to the door body, and the suction assembly 130 is installed on the sealing assembly through a hinge 133. The bottom edge of the back of the assembly 110 is hinged with the sealing assembly 110, and can rotate up and down relative to the sealing assembly 110. The suction assembly 130 is composed of two hard sealing plates 111, a transition plate 112, and a suction cup 132. It is more durable. Durable and durable performance, simple structure, when in use, the sealing plate 111 is set on the ground to reduce the distance between the ground and the door body, and the position of the door body can be adjusted, and the suction assembly 130 can be connected with the sealing The assembly 110 fits together, which is convenient and practical.

It should be noted that the door seam strip in this embodiment can be applied to various occasions, and is not limited to the door body. For example, the door seam strip can be rotatably arranged on a table or a cabinet as a storage box for storage, so that the rotatable door seam strip can be used as a small storage box to store small objects. Further, since the door seam strip is rotatably arranged on other objects, the door seam strip can also play a supporting role, such as being used in a mobile phone holder, or in a mobile phone power bank.

In order to increase the adsorption strength, for example, the length of the rotating plate 131 is equal to the length of the sealing plate 111 . In another example, the thickness of the rotating plate 131 is equal to the thickness of the sealing plate 111 . For example, the plane where the bottom of the rotating plate 131 is located is flush with the plane where the bottom of the sealing plate 111 is located. In this way, the suction cup 132 disposed on the plane where the bottom of the rotating plate 131 is located can fully contact the surface of the external object, thereby tightly adsorbing on the surface of the external object, forming a close adsorption fit with the external object.

In order to further improve the adsorption strength, for example, the opening area of the suction cup 132 is smaller than the area of the rotating plate 131 . For example, the suction cup 132 is made of silicone material; and for example, the suction cup 132 is made of soft rubber material. In this embodiment, the suction cup 132 is a funnel-shaped suction cup, and the opening area of the suction cup 132 is smaller than that of the rotating plate 131 . For another example, the cross section of the opening of the suction cup 132 is oval; for example, the suction cup 132 is fixed on the bottom of the rotating plate 131, for example, the suction cup 132 is fixed on the bottom of the rotating plate 131 by screws; The bottom of the rotating plate 131; for another example, the suction cup 132 is fixed on the bottom of the rotating plate 131 by strong glue, so that when the suction cup 132 is adsorbed on the surface of an external object, since the open area of the suction cup 132 is less than the area of the rotating plate 131 Moreover, the suction cup 132 is fixed on the bottom of the rotating plate 131, which can effectively improve the adsorption strength, so that the suction cup 132 is firmly adsorbed on the surface of the external object.

Please refer to FIG. 2 again, for example, the rotating plate 131 , the sealing plate 111 and the transition plate 112 are in a T-shaped structure, wherein the transition plate 112 is a vertical part, and the rotating plate 131 and the sealing plate 111 are horizontal parts. In order to improve the mechanical strength and maximize the sealing performance of the sealing assembly 110 , in this embodiment, the sealing plate 111 and the transition plate 112 are integrally formed into an L-shaped structure. In this way, the mechanical strength of the connection between the sealing plate 111 and the transition plate 112 can be effectively improved, and it is more convenient for the user to operate and use the sealing assembly.

Further, for example, the rotating plate 131 , the sealing plate 111 and the transition plate 112 are all rectangular parallelepiped plate structures. For example, the angle between the sealing plate 111 and the transition plate 112 is 90 degrees. As another example, the angle between the sealing plate 111 and the transition plate 112 is 100 degrees. For example, when the transition plate 112 is kept vertical, the angle between the sealing plate 111 and the transition plate 112 is 90 degrees. As another example, the angle between the sealing plate 111 and the transition plate 112 is 100 degrees.

It should be noted that, in the case of keeping the transition plate 112 in a vertical state, the difference in the angle between the sealing plate 111 and the transition plate 112 means the angle between the sealing plate 111 and the surface of an external object such as the ground are not the same, that is, the force between the sealing plate 111 and the external object is also different; for example, when the angle between the sealing plate 111 and the transition plate 112 is 90 degrees, the surface of the sealing plate 111 and the external object is Face-to-face abutment; as another example, when the angle between the sealing plate 111 and the transition plate 112 is 100 degrees, the sealing plate 111 and the surface of the external object are in linear abutment. It can be understood that surface-to-surface abutment and linear abutment Both can achieve the effect of sealing, but it needs to be selected according to the actual use environment. Face-to-face abutment can be used in situations where high sealing performance is required but the wind force of the door body is small, while linear abutment can be used in situations where sealing performance is low but the wind force of the door body is relatively large.

Please refer to FIG. 4 , which is a structural diagram of another view of the door sill in an embodiment, for example, the first sleeve 121 is a hollow cylinder, and the second sleeve 122 is a hollow cylinder. In other embodiments, the first sleeve 121 is a hollow cuboid, and the second sleeve 122 is a hollow cuboid. For example, the hollow cylinder has a certain thickness to improve mechanical strength, so that after the door seam strip is installed on the external object, the door seam strip can maintain a good hinge relationship with the external object for a long time.

In order to balance the force on the side of the transition plate 112 and external objects, for example, there is a predetermined gap 410 between the first sleeve 121 and the second sleeve 122 . That is to say, the side of the transition plate 112 is hinged with the external object through two sleeves with a preset gap, that is, the first sleeve 121 and the second sleeve 122. Having a preset gap can make the gravity of the transition plate 112 And the gravity of the sealing plate 111 and the rotating plate 131 is evenly distributed to the first sleeve 121 and the second sleeve 122, and then acts indirectly on external objects.

In this way, through the design of the preset gap, the gravity of the door seam is skillfully and evenly transmitted to the first sleeve 121 and the second sleeve 122 on the side of the transition plate 112, avoiding the first sleeve 121 and the second sleeve 122 A certain sleeve in the two sleeves 122 is damaged and broken due to excessive force, which improves the service life.

In a preferred embodiment, the preset gap is 3-5 cm. For example, the preset gap is 3 cm. For example, the preset gap is 5 cm. For example, the preset gap is 4 cm.

In order to make the connection between the rotating plate 131 and the transition plate 112 more stable, for example, there are multiple hinges 133 . For example, a plurality of hinges 133 are evenly disposed on a side of the transition plate 112 adjacent to the sealing plate 111 . That is to say, the rotating plate 131 is connected to the side of the transition plate 112 through a plurality of hinges 133 uniformly arranged on the transition plate 112, so that under the suction of the suction cup 132, when an external object is stressed, it is transmitted to the rotating plate through the suction cup 132 131, a plurality of hinges 133 evenly arranged on the side of the transition plate 112 adjacent to the sealing plate 111 can provide an effective mechanical strength guarantee for the rotating plate 131, and avoid affecting the rotating plate 131 due to the small number of hinges 133 Stability of the connection to the transition plate 112 .

Please refer to FIG. 5 , which is a structural schematic view of another view of the door seam strip in an embodiment. In order to improve the sealing performance, for example, several sealing strips 510 are provided on the bottom of the sealing plate 111 . For example, the sealing strip 510 is made of soft rubber material. For example, the sealing strip 510 is made of silicone material. For example, several sealing strips cover the bottom of the sealing plate 111 . For example, a plurality of sealing strips uniformly cover the bottom of the sealing plate 111 in a matrix. For example, the individual sealing strips are arranged parallel to each other. For example, the individual sealing strips are arranged across each other. In this way, by arranging several sealing rubber strips 510 at the bottom of the sealing plate 111, when the sealing plate 111 is inserted into the gap between the door body and the ground, the sealing rubber strips 510 are compressed and deformed under force, and the gap between each sealing rubber strip Due to being compressed and deformed by force, they are filled into the gap between the door body and the ground, so that the sealing performance between the door body and the ground is improved.

Please refer to Fig. 6, which is a structural schematic diagram of the door seam strip in another embodiment. For example, the door seam strip also includes a magnetic assembly 600. As the name implies, the magnetic assembly is a magnetic component, so as to realize this embodiment by utilizing the magnetic force existing in nature. For example, the technical problem to be solved: the door stopper cannot be stabilized on the door well. Specifically, the magnetic assembly 600 includes a first magnetic block 610 and a second magnetic block 620 . For example, both the first magnetic block 610 and the second magnetic block 620 are plate-shaped, wherein the first magnetic block 610 is embedded in the transition plate 112, and the second magnetic block 620 is attracted to the first magnetic block 610 by magnetic force and is connected to the transition plate. The surface of the board 112 is abutted against, and the second magnetic block 620 is used to be disposed on an external object. For example, both the first magnetic block 610 and the second magnetic block 620 are magnetic substances. For example, both the first magnetic block 610 and the second magnetic block 620 are magnets.

That is to say, in one embodiment, the second magnetic block 620 is pre-set on an external object such as a door body. When in use, when the transition plate 112 is opened toward the door body, the first magnetic block 610 and the second magnetic block 610 will be connected to each other. The blocks 620 are magnetically attracted to each other under the action of magnetic force, so that the transition plate 112 is magnetically attached to the door body. In this way, the door stopper can be better stabilized on the door through the magnetic assembly, so that the opening angle of the door and the sealing effect are better improved.

Further, the transition plate is provided with a bar-shaped groove, and the shape and configuration of the bar-shaped groove is the same as that of the first magnetic block. For example, the bar-shaped groove is located in the middle area of the transition plate. In order to improve the effect of magnetic attraction, for example, the width of the bar-shaped groove is eight tenths of the width of the transition plate. For example, if the width of the transition plate is 50 cm, the bar-shaped The width of the groove is 40 cm. In this way, the wider bar-shaped groove can be adapted to the wider first magnetic block correspondingly, so that the first magnetic block can cover a larger area, and the second magnetic block with a larger area can effectively improve the adsorption effect. In addition, it should be noted that when the door body is made of magnetic metal, the second magnetic block is equivalent to the whole of the magnetic metal and can be ignored.

Please refer to FIG. 7 , which is a schematic structural diagram of a door sill in another embodiment. For example, the door sill further includes a mirror assembly 700 , and the mirror assembly includes a lens 710 and a mirror frame 720 . For example, lens 710 fits into frame 720 . For example, the mirror frame 720 is detachably disposed on the transition board 112 . For example, the reflective plane of the mirror 710 is disposed parallel to the second plane 114 of the transition plate 112 . In this way, when the user needs to wear shoes to dress up, the mirror component can detect whether the shoes are soiled and whether the matching of the shoes and pants is reasonable and tidy, etc. This process is convenient and quick.

For example, the width of the lens is one tenth of the width of the transition plate. For example, if the width of the transition plate is 50 cm, the width of the lens is 45 cm. For example, an optic is a mirror that reflects the contoured appearance of an object located in front of it. In this way, when the user needs to wear shoes and dress up, the lens made of a reflector and a large reflection area can be checked quickly through the lens, and the larger lens has a good visual range, so that it can According to the intensity of different light, the reflected object in the lens can also be seen, which improves the user experience and further enhances the practicability of the door seam strip.

Please refer to Figure 8, which is a schematic diagram of the composition and structure of the sealing plate, the transition plate or the rotating plate in one embodiment. The internal structure of the door is designed to achieve high-strength mechanical properties, meet the needs of the door seam to maintain a good mechanical shape under the action of a large external force, and improve the service life of the door seam.

In this embodiment, the sealing plate is taken as an example and the structure is described with reference to FIG. 8 and FIG. 9 , specifically: the sealing plate includes a contact layer 901 , a fixed layer 902 , a reinforcing layer 903 , a hard layer 904 and a flexible layer 905 . For example, the contact layer 901 , the fixed layer 902 , the reinforcing layer 903 , the hard layer 904 and the flexible layer 905 are stacked in sequence. The contact layer 901 is made of wear-resistant material, for example, the contact layer 901 is made of stainless steel material, or the contact layer 901 is made of wear-resistant ceramic material. For example, the fixing layer 902 is made of a material with strong toughness, for example, the fixing layer 902 is made of glass fiber reinforced plastic; another example, the fixing layer 902 is made of lychee wood blocks. For example, the strengthening layer 903 is made of metal aluminum alloy material with high mechanical strength. For example, the hard layer 904 is made of metal iron. For example, the flexible layer 905 is made of stainless steel.

Preferably, the contact layer 901, the fixed layer 902, the reinforcement layer 903, the hard layer 904 and the flexible layer 905 are connected by applying an appropriate amount of phenolic resin adhesive to improve the fire resistance, friction resistance and high Mechanical strength, heat resistance, etc.

In order to make the connection between the contact layer 901, the fixed layer 902, the reinforcing layer 903, the hard layer 904 and the flexible layer 905 more firm and stable, for example, the end of the fixed layer 902 is integrally provided with a first insertion part 911 and The second insertion part 912 . The first insertion part 911 is inserted at the end of the contact layer 901 , and the second insertion part 912 is inserted at the end of the reinforcement layer 903 . At the same time, the reinforcement layer 903 wraps the contact layer 901 and the fixing layer 902 . In this embodiment, the fixing layer 902 is wrapped in the reinforcement layer 903 . Further, the reinforcing layer 903 is integrally provided with several reinforcing parts 913 , and the several reinforcing parts 913 go deep into the hard layer 904 and closely cooperate with the hard layer 904 . For example, the reinforcement part 913 is horizontally extended and disposed in the hard layer 904 . Further, the hard layer 904 is integrally provided with several oblique insertion parts 915 , and the oblique insertion parts 915 form an acute angle with the horizontal direction. A plurality of oblique insertion portions 915 are extended in the flexible layer 905 . In this way, through the above-mentioned first insertion portion 911, second insertion portion 912, reinforcement portion 913 and oblique insertion portion 915, the contact layer 901, the fixed layer 902, the reinforcement layer 903, the hard layer 904 and the flexible layer 905 The connection between the two is more firm and stable, which effectively improves the mechanical strength of the sealing plate.

It is worth mentioning that the transition plate also includes a contact layer, a fixed layer, a reinforcement layer, a hard layer and a flexible layer, and the contact layer, the fixed layer, the reinforcement layer, the hard layer and the flexible layer are stacked in sequence. At the same time, the connection between the contact layer, the fixed layer, the reinforcement layer, the hard layer and the flexible layer is also carried out by means of the above-mentioned embodiments. Similarly, the rotating plate also includes a contact layer, a fixed layer, a reinforcing layer, a hard layer and a flexible layer, and the contact layer, the fixed layer, the reinforcing layer, the hard layer and the flexible layer are sequentially stacked. At the same time, the connection between the contact layer, the fixed layer, the reinforcement layer, the hard layer and the flexible layer is also carried out by means of the above-mentioned embodiments.

The various technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (6)

1. A door seam strip, characterized in that it comprises: A sealing assembly, the sealing assembly includes a sealing plate and a transition plate, the sealing plate and the transition plate are connected to each other, the first plane where the surface of the sealing plate is located intersects the second plane where the surface of the transition plate is located ; An external connection piece, the external connection piece includes a first sleeve and a second sleeve, the first sleeve and the second sleeve are arranged coaxially, and the first sleeve and the second sleeve are respectively arranged On the side of the transition plate, the first sleeve and the second sleeve are used to rotatably connect with external objects; A suction assembly, the suction assembly includes a rotating plate, a suction cup and a hinge, the rotating plate is connected to the transition plate through the hinge, the suction cup is arranged at the bottom of the rotating plate, and the suction cup is used for External planes attract each other. 2. The door seam strip according to claim 1, wherein the length of the rotating plate is equal to the length of the sealing plate. 3. The door seam strip according to claim 1, characterized in that, the opening area of the suction cup is smaller than the area of the rotating plate. 4. The door seam strip according to claim 1, wherein the rotating plate, the sealing plate and the transition plate are in a T-shaped structure, wherein the transition plate is a vertical part, and the The rotating plate and the sealing plate are horizontal parts. 5. The door seam strip according to claim 1, characterized in that, the rotating plate, the sealing plate and the transition plate are all cuboid plate-shaped structures. 6. The door seam strip according to claim 1, wherein the angle between the sealing plate and the transition plate is 90 degrees.