Novel door bottom sealing strip ejector rod structure

By designing a door bottom sealing strip top rod structure suitable for various door structures, and using ball bearings and guide bevels in conjunction with elastic linkage components, the sealing strip is pressed against the ground when the door is closed and automatically resets when the door is opened. This solves the problem of limited sealing range in existing technologies and improves sealing effect and smoothness of door closing.

CN223594071UActive Publication Date: 2025-11-25FOSHAN BOHUA DECORATION MATERIALS CO LTD
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Patent Information

Application Number
CN202422971249.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-11-25
Estimated Expiration
2034-12-03

AI Technical Summary

Technical Problem

Existing door bottom sealing structures can only be installed on swing doors, and the sealing range is limited, making them unsuitable for various door structures and affecting indoor air circulation and noise control.

Method used

A novel door bottom sealing strip top rod structure has been designed, including a top rod assembly, a bracket body, and a C-shaped plate. By using ball bearings and guide bevels in conjunction with elastic linkage components, the sealing strip can be pressed against the ground when the door is closed and automatically reset when the door is opened. It is suitable for various door structures.

Benefits of technology

It expands the application range of sealing strips, improves the sealing effect and smoothness of door closing, reduces the wear of top rods, and is suitable for various door structures such as single-leaf swing doors, double-leaf swing doors, revolving doors, side-sliding doors, and sliding doors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a novel door bottom sealing strip ejector rod structure which comprises an ejector rod assembly, a support body and a C-shaped plate, a guide slope is arranged on the side face of the C-shaped plate, the ejector rod assembly comprises an ejector rod, a ball is installed at one end of the ejector rod in a rolling mode, and an upper sliding groove and a lower movable groove are formed in the upper end and the lower end of the inner side of the support body respectively. The bottom of the upper sliding groove is communicated with the top of the lower movable groove, the ejector rod is movably inserted into the upper sliding groove, a rubber strip support is movably arranged on the inner side of the lower movable groove, a sealing rubber strip is installed at the lower end of the rubber strip support, and the rubber strip support is connected with the inner side of the support body through an elastic linkage piece. The end, away from the ball, of the ejector rod is fixedly connected with one side of the upper end of the elastic linkage piece. According to the door bottom sealing strip, the support main body and the [-shaped plate with the guide inclined plane are matched with the elastic linkage piece and the ejector rod assembly, so that the door bottom sealing strip can be applied to various door body structures, and the application range of the door bottom sealing strip is enlarged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to door field, concretely relates to a novel door bottom sealing strip top rod structure. BACKGROUND

[0002] The door is the limit of separating the outdoor and indoor, in use, in order to guarantee the easy opening and closing of door, the gap of door bottom is inevitable. These gaps also become the channel of outdoor air (hot air in summer, cold wind in winter), dust, noise, stray light invading indoor. Especially the house near the road, when the door bottom is not sealed tightly, it seriously affects the indoor living environment.

[0003] The Chinese patent with patent No. CN215169557U discloses a door bottom sealing noise reduction structure, which comprises a main support, a rubber strip support, an ejection driving element, a limiting movable element and a fixed block. The inner side wall of the main support is symmetrically provided with a stop block. The rubber strip support is movably arranged in the main support and below the stop block. The ejection driving element is arranged in the main support and above the stop block. The ejection driving element is arranged close to the end of the main support. The ejection driving element is movably connected with the rubber strip support. The fixed block is arranged in the main support and above the stop block and away from the ejection driving element. The limiting movable element is arranged in the main support and movably connected with the fixed block. The limiting movable element is movably connected with the rubber strip support.

[0004] The door bottom sealing noise reduction structure has the advantages of simple structure, reasonable design, reduced use of metal materials, cost saving, reliable performance and the like.

[0005] However, the door bottom sealing noise reduction structure can only be installed on a vertical hinged door, and the impact rod can only be directed to one side of the hinge, which has a large limitation in use range. UTILITY MODEL CONTENTS

[0006] The utility model discloses a novel door bottom sealing strip top rod structure, which can be applied to various forms of doors to improve the application range of the door bottom sealing strip.

[0007] The specific technical scheme is as follows:

[0008] The utility model provides a new type door bottom sealing strip top rod structure, including top rod subassembly, support body and square plate, the side of square plate is provided with guide inclined plane, support body installs at the bottom of door body, square plate installs on the door frame, top rod subassembly includes top rod, one end of top rod is installed with ball, the inside upper end and lower end of support body are opened with upper slide groove and lower movable slot respectively, the bottom of upper slide groove is connected with the top of lower movable slot, top rod is movably inserted in upper slide groove, the inside of lower movable slot movably sets up with adhesive tape support, the lower end of adhesive tape support is installed with sealing adhesive tape, the inside of support body is connected with adhesive tape support through elastic linkage, the one end of top rod is fixedly connected with the one side of the upper end of elastic linkage away from ball, when closing the door, ball is contacted with guide inclined plane, guide inclined plane extrudes ball, and top rod is slid and pressed into upper slide groove, when, top rod extrudes elastic linkage, and elastic linkage drives adhesive tape support to move down, and then sealing adhesive tape is pressed on the ground, after opening the door, top rod is extruded from upper slide groove by elastic linkage after being relieved extrusion, and sealing adhesive tape is pulled up by elastic linkage and leaves the ground.

[0009] As a preferred scheme of the utility model, the elastic linkage comprises a movable piece, a support piece, a first connecting piece and a second connecting piece, the movable piece and the support piece are respectively slidably arranged at two ends of the upper slide groove, the one end of the top rod away from the ball is fixedly connected with one side of the movable piece through a connecting rod, the first connecting piece and the second connecting piece are both fixedly installed on the adhesive tape support, the first connecting piece is hingedly connected with the movable piece through a first movable rod, the one end of the upper slide groove away from the top rod is fixedly connected with a connecting block, the second connecting piece is hingedly connected with the connecting block through a second movable rod, and the first movable rod is connected with the movable piece through a first spring.

[0010] As a preferred scheme of the utility model, the elastic linkage further comprises a third spring and a second spring, the upper end of the third spring is fixedly connected with the support piece, the bottom of the third spring is fixedly connected with the second connecting piece, the upper end of the second spring is fixedly connected with the support piece, and the lower end of the second spring is fixedly connected with the second movable rod.

[0011] As a preferred scheme of the utility model, the upper end of the adhesive tape support is provided with a first limiting slot on both sides, the sealing adhesive tape is arranged in a U shape, the inner side of both ends of the sealing adhesive tape is fixedly connected with a first limiting plug, and the first limiting plug is inserted into the first limiting slot.

[0012] As a preferred embodiment of this utility model, it further includes a support block, the top of which is fixedly connected to a second limiting block, and the bottom of the adhesive strip bracket is provided with a second limiting slot, the second limiting block being inserted into the second limiting slot. The bottom of the support block is formed with a plurality of supporting protrusions, the bottom of which abuts against the inner side of the sealing strip, so that the sealing strip is always in an open state.

[0013] As a preferred embodiment of this utility model, the second limiting slot and the second limiting block, as well as the first limiting block and the first limiting slot, are both interference fits.

[0014] This utility model has the following beneficial effects:

[0015] This utility model involves installing the main body of the bracket at the bottom of the door and cooperating with a C-shaped plate with a guide slope installed on the door frame. When the door is closed, the ball bearings contact the guide slope, and the guide slope presses against the ball bearings, causing the top rod to slide into the upper sliding groove. At this time, the top rod presses against the elastic linkage, and the elastic linkage drives the rubber strip bracket to move downward, thereby pressing the sealing strip onto the ground. After the door is opened, the top rod, after being released from pressure, is pushed out of the upper sliding groove by the elastic linkage, and at the same time, the sealing strip is pulled upward away from the ground by the elastic linkage. This structure can be used in various door structures such as single-leaf swing doors, double-leaf swing doors, revolving doors, side-sliding sliding doors, and push-pull doors, increasing the applicability of the door bottom sealing strip.

[0016] Furthermore, the ball bearings effectively reduce wear on the push rod when it is pressed, while improving the smoothness of closing the door. Attached Figure Description

[0017] Figure 1 A diagram illustrating the usage state of the novel door bottom sealing strip top rod structure provided in this embodiment of the utility model;

[0018] Figure 2 A partial structural diagram of the novel door bottom sealing strip top rod structure provided in this embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the novel door bottom sealing strip top rod structure provided in this embodiment of the utility model;

[0020] Figure 4 for Figure 3 A magnified structural diagram of part A in the diagram;

[0021] Figure 5 A cross-sectional structural diagram of the novel door bottom sealing strip top rod structure provided in this embodiment of the utility model.

[0022] Fig. 1, support body; 101, upper chute; 102, lower movable chute; 2, sealing rubber strip; 201, first limiting plug; 3, rubber strip support; 301, second limiting slot; 302, first limiting slot; 4, supporting block; 401, supporting protrusion; 402, second limiting plug; 5, top rod; 501, ball; 502, connecting rod; 503, movable piece; 504, supporting piece; 505, first movable rod; 506, first spring; 507, second connecting piece; 508, second movable rod; 509, connecting block; 510, second spring; 511, third spring; 5012, first connecting piece; 6, U-shaped plate; 601, guide inclined surface. DETAILED DESCRIPTION

[0023] The technical scheme of the present application will be further illustrated below in combination with the drawings and through specific embodiments.

[0024] Among them, the drawings are only used for example explanation, and the representation is only a schematic diagram, not a real object diagram, and cannot be understood as a limitation on the patent; in order to better illustrate the embodiments of the present application, some components of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some known structures and their descriptions in the drawings can be omitted.

[0025] The same or similar reference numerals in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it is understood that if the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, structure and operation, therefore the positional relationship described in the drawings is only used for example explanation, and cannot be understood as a limitation on the patent, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0026] In the description of the present application, unless otherwise explicitly specified and limited, if the term "connection" and the like appear to indicate the connection relationship between components, the term should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific situation.

[0027] For example, Figures 1-5The utility model discloses a novel door bottom sealing strip top rod structure, including top rod subassembly, support main part 1 and the square plate 6, the side of square plate 6 is provided with the guide inclined plane 601, and support main part 1 is installed at the door body bottom, and square plate 6 is installed on the door frame, and top rod subassembly includes top rod 5, and one end of top rod 5 is installed with the ball 501, and the inside upper end and lower end of support main part 1 are set up with the upper slide groove 101 and the lower movable slot 102 respectively, and the bottom of upper slide groove 101 is linked with the top of lower movable slot 102, and top rod 5 is movably inserted in upper slide groove 101, and the inside of lower movable slot 102 movably sets up with the adhesive tape support 3, and the lower end of adhesive tape support 3 is installed with the sealing adhesive tape 2, and adhesive tape support 3 is connected with the inside of support main part 1 through the elastic linkage, and the one end of top rod 5 is fixedly connected with the upper end one side of elastic linkage away from ball 501, when closing the door, ball 501 is contacted with guide inclined plane 601, and guide inclined plane 601 extrudes ball 501, and top rod 5 is slid and pressed into upper slide groove 101, at this moment, top rod 5 extrudes elastic linkage, and elastic linkage drives adhesive tape support 3 to move down, and then sealing adhesive tape 2 is pressed on the ground, after opening the door, top rod 5 is extruded from upper slide groove 101 by elastic linkage after being relieved extrusion, and sealing adhesive tape 2 is pulled up by elastic linkage and leaves the ground.

[0028] Specifically, the elastic linkage includes a movable piece 503, a supporting piece 504, a first connecting piece 5012 and a second connecting piece 507, the movable piece 503 and the supporting piece 504 are slidably arranged at two ends of the upper slide groove 101, one end of the top rod 5 away from the ball 501 is fixedly connected with one side of the movable piece 503 through a connecting rod 502, the first connecting piece 5012 and the second connecting piece 507 are fixedly installed on the adhesive tape support 3, the first connecting piece 5012 is hingedly connected with the movable piece 503 through a first movable rod 505, one end of the upper slide groove 101 away from the top rod 5 is fixedly connected with a connecting block 509, the second connecting piece 507 is hingedly connected with the connecting block 509 through a second movable rod 508, the first movable rod 505 is connected with the movable piece 503 through a first spring 506, in order to further improve the stability of the elastic linkage, a third spring 511 and a second spring 510, the upper end of the third spring 511 is fixedly connected with the supporting piece 504, the bottom of the third spring 511 is fixedly connected with the second connecting piece 507, the upper end of the second spring 510 is fixedly connected with the supporting piece 504, and the lower end of the second spring 510 is fixedly connected with the second movable rod 508.

[0029] By adopting the above technical scheme, when the door is closed, the rolling ball 501 at the extending end of the jacking rod 5 is in contact with the one side guiding inclined surface 601 of the L-shaped plate 6 fixed on the door frame, so that the guiding inclined surface 601 extrudes the rolling ball 501, and the jacking rod 5 is slid and pressed into the upper sliding groove 101, at this time, the jacking rod 5 extrudes the movable part 503 through the connecting rod 502, so that the movable part 503 moves to the direction of the connecting block 509, because the movable part 503 and the first connecting part 5012 are hinged through the first movable rod 505, and the second connecting part 507 is hinged with the connecting block 509 through the second movable rod 508, and then when the movable part 503 moves to the direction close to the connecting block 509, the rubber strip support 3 is forced to move downward, and then the rubber strip support 3 drives the sealing rubber strip 2 to move downward, and then the sealing rubber strip 2 is pressed on the ground, at this time, the first spring 506, the second spring 510 and the third spring 511 are all in the stretched state, after the door is opened, the jacking rod 5 is extruded, at this time, the rubber strip support 3 is reset upward under the elasticity of the first spring 506, the third spring 511 and the second spring 510, and then the sealing rubber strip 2 is driven by the rubber strip support 3 to leave the ground.

[0030] In the embodiment, the support block 4 is provided, the top of the support block 4 is fixedly connected with the second limiting plug 402, the bottom of the rubber strip support 3 is provided with the second limiting slot 301, the second limiting plug 402 is inserted into the second limiting slot 301, and the bottom of the support block 4 is provided with a plurality of support protrusions 401, the bottom of the support protrusion 401 abuts against the inner side of the sealing rubber strip 2, so that the sealing rubber strip 2 is always in the state of being stretched, and the support block 4 cooperates with the support protrusion 401, so that the sealing rubber strip 2 can be always in the state of being stretched, and the phenomenon of deformation caused by extrusion is avoided.

[0031] In the embodiment, the second limiting plug 402 and the second limiting slot 301 are in interference fit, and the first limiting plug 201 and the first limiting slot 302 are also in interference fit, and the interference fit ensures that the support block 4 and the sealing rubber strip 2 are tightly connected with the rubber strip support 3.

[0032] In summary, the support body is installed at the bottom of the door body, and the L-shaped plate 6 with the guiding inclined surface 601 is installed on the door frame, when the door is closed, the rolling ball 501 is in contact with the guiding inclined surface 601, the guiding inclined surface 601 extrudes the rolling ball 501, and the jacking rod 5 is slid and pressed into the upper sliding groove 101, at this time, the jacking rod 5 extrudes the elastic linkage, the elastic linkage drives the rubber strip support 3 to move downward, and then the sealing rubber strip 2 is pressed on the ground, after the door is opened, the jacking rod 5 is extruded, at this time, the jacking rod 5 is extruded from the upper sliding groove 101 by the elastic linkage, and the sealing rubber strip 2 is pulled upward by the elastic linkage to leave the ground, and the structure can be used in various door structures such as single-leaf vertical hinged door, double-leaf vertical hinged door, revolving door, side-sliding door and sliding door, and the application range of the door bottom sealing strip is increased.

[0033] And through the setting of the ball 501 can be pressed on the top bar 5, effectively reduce the wear of the top bar 5, improve the smoothness when the door.

[0034] The above is only the preferred embodiment of the present application, and does not limit the implementation and protection scope of the present application. For those skilled in the art, it should be realized that any equivalent replacement and obvious change obtained by applying the content of the present application and drawings should be included in the protection scope of the present application.

Claims

1. A novel door bottom seal jamb post structure, characterized by, The utility model provides a door and ground sealing device, including top rod assembly, support body (1) and the square plate (6), the side of square plate (6) is provided with guide inclined plane (601), support body (1) is installed at the bottom of door body, square plate (6) is installed on the door frame, top rod assembly includes top rod (5), one end of top rod (5) is installed with ball (501) and rolls, the inside upper end and lower end of support body (1) are opened with upper slide groove (101) and lower movable slot (102) respectively, the bottom of upper slide groove (101) is connected with the top of lower movable slot (102), top rod (5) is movably inserted in upper slide groove (101), the inside of lower movable slot (102) movably sets up adhesive tape support (3), the lower end of adhesive tape support (3) is installed with sealing adhesive tape (2), adhesive tape support (3) is connected with the inside of support body (1) through elastic linkage, the end of top rod (5) away from ball (501) is fixedly connected with the one side of the upper end of elastic linkage, when closing the door, ball (501) is contacted with guide inclined plane (601), guide inclined plane (601) extrudes ball (501), and top rod (5) is slidably pressed into upper slide groove (101), at this moment, top rod (5) extrudes elastic linkage, and elastic linkage drives adhesive tape support (3) to move down, and then sealing adhesive tape (2) is pressed on the ground, after opening the door, top rod (5) is extruded after being relieved, and is extruded from upper slide groove (101) by elastic linkage, and sealing adhesive tape (2) is pulled up and leaves the ground by elastic linkage.

2. The new door bottom seal jamb rod structure according to claim 1, wherein, The elastic linkage includes movable piece (503), support piece (504), first connecting piece (5012) and second connecting piece (507), movable piece (503) and support piece (504) are slidably arranged at both ends of upper slide groove (101) respectively, the end of top rod (5) away from ball (501) is fixedly connected with one side of movable piece (503) through connecting rod (502), first connecting piece (5012) and second connecting piece (507) are fixedly installed on adhesive tape support (3), first connecting piece (5012) and movable piece (503) are hinged through first movable rod (505), one end of upper slide groove (101) away from top rod (5) is fixedly connected with connecting block (509), second connecting piece (507) is hinged with connecting block (509) through second movable rod (508), first movable rod (505) is connected with movable piece (503) through first spring (506).

3. The new door bottom seal jamb rod structure according to claim 2, wherein, The elastic linkage further comprises a third spring (511) and a second spring (510), the upper end of the third spring (511) is fixedly connected with the support (504), the bottom of the third spring (511) is fixedly connected with the second connecting piece (507), the upper end of the second spring (510) is fixedly connected with the support (504), and the lower end of the second spring (510) is fixedly connected with the second movable rod (508).

4. The new door bottom seal jamb rod structure according to claim 3, wherein, The upper end of the adhesive strip support (3) is provided with a first limiting slot (302) on both sides, the sealing adhesive strip (2) is arranged in a U shape, the inner side of both ends of the sealing adhesive strip (2) is fixedly connected with a first limiting plug (201), and the first limiting plug (201) is inserted into the first limiting slot (302).

5. The new door bottom seal jamb rod structure according to claim 4, wherein, Further comprising a support block (4), the top of the support block (4) is fixedly connected with a second limiting plug (402), the bottom of the adhesive strip support (3) is provided with a second limiting slot (301), the second limiting plug (402) is inserted into the second limiting slot (301), and the bottom of the support block (4) is formed with a plurality of supporting protrusions (401), the bottom of the supporting protrusion (401) abuts against the inner side of the sealing adhesive strip (2), so that the sealing adhesive strip (2) is always in an open state.

6. The new door bottom seal jamb rod structure according to claim 5, wherein, The second limiting slot (301) and the second limiting plug (402) are in interference fit, and the first limiting plug (201) and the first limiting slot (302) are also in interference fit.

Citation Information

Patent Citations

  • Door bottom sealing noise reduction structure

    CN215169557U