A garage door bottom seal

Abstract

The application relates to the technical field of garage doors, in particular to a sealing device for the bottom of a garage door, which comprises a mounting unit, a base and two symmetrical speed reduction plates arranged at the top end of the base and provided with a clamping space between the two speed reduction plates; a sealing unit, the sealing unit is provided with two groups and is symmetrically arranged in the clamping space, each group of the sealing unit comprises a sealing strip; when a roller shutter door is closed, the bottom end of a shutter plate is inserted into the clamping space, the sealing strip and the tensioning strip are simultaneously extruded, the sealing strip is adhered to the shutter plate, the other side of the extruded tensioning strip is extruded under the elastic recovery of the tensioning strip and a spring group, so that the sealing strip can be more adhered to the shutter plate, the sealing property is fully ensured, and the problem that the bottom of the shutter plate cannot be perfectly adhered to the ground after the garage roller shutter door is closed due to uneven ground, and water is easily entered in rainy days is solved.

Description

Technical Field

[0001] This invention relates to the field of garage door technology, and more particularly to a bottom sealing device for garage doors. Background Technology

[0002] Garages are typically used not only to store cars and other items, but also as a transitional area between the interior and exterior of a house. Therefore, garages need some degree of protection against wind, rain, and other weather elements. Currently, when garage roller shutters are closed, the unevenness of the concrete floor prevents the bottom of the shutter curtain from perfectly fitting the ground, resulting in poor sealing and easy water ingress during rainy weather. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problem that the bottom of the curtain panel of the existing garage roller shutter door cannot perfectly fit the ground after it is closed, resulting in poor sealing and easy water ingress in rainy weather, this invention is proposed.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a garage door bottom sealing device, comprising: an installation unit including a base and two deceleration plates symmetrically arranged on the top of the base, with a locking space between the two deceleration plates; and a sealing unit, wherein there are two sets of sealing units symmetrically arranged in the locking space, each set of sealing units including a sealing strip, and the sealing strip is made of elastic material; wherein, two symmetrically arranged installation strips are provided on one side of the deceleration plate corresponding to the locking space, and the installation strips are provided with guide grooves along their length; the sealing strip includes a sealing part with an arc-shaped cross-section that performs a sealing function, and locking parts provided on both sides of the sealing part, the locking parts being slidably installed along the guide grooves.

[0006] As a preferred embodiment of the garage door bottom sealing device of the present invention, the mounting part is provided with a first anti-detachment strip and a second anti-detachment strip along the length direction, the first anti-detachment strip and the second anti-detachment strip are arranged at intervals, and the first anti-detachment strip is provided at the end of the mounting part.

[0007] As a preferred embodiment of the garage door bottom sealing device of the present invention, the first anti-detachment strip and the second anti-detachment strip both have circular cross-sections, and the diameter of the cross-section of the first anti-detachment strip is larger than the diameter of the cross-section of the second anti-detachment strip.

[0008] As a preferred embodiment of the garage door bottom sealing device of the present invention, the side wall of the guide groove is provided with a first slot adapted to the first anti-detachment strip and a second slot adapted to the second anti-detachment strip.

[0009] As a preferred embodiment of the garage door bottom sealing device of the present invention, the deceleration plate is a four-panel structure with a hollow interior and a right-angled trapezoidal cross section. The side of the deceleration plate away from the mounting space is an inclined side, and an anti-slip strip is provided on the inclined side. Furthermore, a number of reinforcing plates arranged in an array are provided in the hollow cavity of the deceleration plate.

[0010] As a preferred embodiment of the garage door bottom sealing device of the present invention, a drainage groove is provided at the top center of the base along the length direction, and a plurality of guide holes arranged in an array are provided on the side of the base facing outward of the garage along the length direction, and the guide holes intersect with the drainage groove.

[0011] As a preferred embodiment of the garage door bottom sealing device of the present invention, the base has two sets of symmetrically arranged positioning grooves at its top, and positioning plates adapted to the positioning grooves are provided at the bottom of the two deceleration plates; the positioning grooves are convex in shape, and the positioning plates can slide into the positioning grooves; the base also has a through threaded mounting hole at its top, and anchor screws pass through the threaded mounting hole to fix the base to the ground.

[0012] As a preferred embodiment of the garage door bottom sealing device of the present invention, wherein: the deceleration plate, the sealing strip, and the mounting strip enclose an adjustment cavity, and a tensioning unit is provided in the adjustment cavity; the tensioning unit includes a tensioning strip and a spring assembly disposed between the tensioning strip and the deceleration plate, the tensioning strip is an arc-shaped strip protruding towards the sealing strip, and the middle part of the tensioning strip is in contact with the inner wall of the sealing strip, and there are gaps between the two ends of the tensioning strip and the sealing strip.

[0013] As a preferred embodiment of the garage door bottom sealing device of the present invention, a plurality of blocks arranged in an array are fixedly connected to the side of the mounting strip near the tensioning strip, and the end of the tensioning strip abuts against the oblique side of the block.

[0014] As a preferred embodiment of the garage door bottom sealing device of the present invention, wherein: a plurality of locking blocks arranged in an array are provided on the side of the tensioning strip that abuts against the stop block, the locking blocks are fitted into the gap between two adjacent stops, the sides of the locking blocks away from the tensioning strip are connected by a third anti-detachment strip, and the side wall of the mounting strip is provided with a third locking groove adapted to the third anti-detachment strip.

[0015] The beneficial effects of this invention are as follows: The device has an ingenious structural design. The sealing strip, tension strip, speed reduction plate, and base are all connected by sliding or snap-fitting, making the connection simple. Anchor screws are used to fix the base to the door frame floor, and glue is filled into the gaps. When the roller shutter door is closed, the bottom end of the curtain panel is inserted into the snap-fitting space, simultaneously squeezing the sealing strip and tension strip, causing the sealing strip to fit against itself. After being squeezed, the tension strip, under its own elastic recovery and that of the spring assembly, squeezes the other side of the sealing strip, thus allowing the sealing strip to fit the curtain panel more closely, thereby fully ensuring the sealing performance. This solves the problem that due to uneven ground, the bottom of the curtain panel cannot perfectly fit the ground after the garage roller shutter door is closed, leading to easy water ingress in rainy weather. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the base structure in this invention.

[0019] Figure 3 This is a schematic diagram of the speed reduction plate in this invention.

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0021] Figure 5 This is a structural schematic diagram of the connection state between the sealing strip and the mounting strip in this invention.

[0022] Figure 6 This is a schematic diagram of the connection state between the tension strip and the installation strip in this invention.

[0023] Figure 7 This is a side view of the present invention.

[0024] Figure 8 This is a schematic diagram of the overall structure of the garage roller shutter door described in this invention.

[0025] Figure 9 This is a schematic diagram of the limiting component in this invention.

[0026] Figure 10 for Figure 9 Enlarged view at point B Figure 11This is a schematic diagram of the limiting mechanism in this invention. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0031] Example 1 Reference Figures 1-5 This invention provides a first embodiment of a garage door bottom sealing device, comprising an installation unit 100 and a sealing unit 200. The installation unit 100 includes a base 101 and two deceleration plates 102 symmetrically arranged at the top of the base 101. The top of the base 101 has two sets of symmetrically arranged positioning grooves 101c, which are convex in shape. During installation, the positioning plate 106 can slide into the positioning groove 101c. The convex shape acts as a limit, effectively preventing the positioning plate 106 from detaching from the positioning groove 101c after connection. The top of the base 101 also has a through threaded mounting hole 101d. Anchor screws pass through the threaded mounting hole 101d to fix the base 101 to the ground, and glue is filled in the gaps, solving the problem of water ingress due to gaps between the curtain and the ground after the roller shutter door is closed. A clamping space H is provided between the two deceleration plates 102 for installing the sealing unit 200.

[0032] Furthermore, there are two sets of sealing units 200, symmetrically arranged in the mounting space H. Each set of sealing units 200 includes a sealing strip 201, which is made of elastic material. The deceleration plate 102 is provided with two symmetrically arranged mounting strips 105 on one side of the mounting space H. The mounting strips 105 are provided with guide grooves 105a along their length. During installation, the two sides of the sealing strip 201 can be slid into the guide grooves 105a to complete the installation. When in use, the roller shutter door is closed, and the bottom of the curtain panel is inserted into the mounting space H. The sealing strips 201 on both sides are squeezed. Due to their elastic recovery characteristics, the sealing strips 201 can deform back to their original shape after being squeezed, thereby fitting with the curtain panel to achieve a seal and prevent water from flowing into the garage.

[0033] Specifically, the sealing strip 201 includes a sealing part 201a with an arc-shaped cross section that performs a sealing function, and a mounting part 201b disposed on both sides of the sealing part 201a. The mounting part 201b can be slidably installed along the guide groove 105a.

[0034] Furthermore, the mounting portion 201b is provided with a first anti-detachment strip 202 and a second anti-detachment strip 203 along its length. The first anti-detachment strip 202 and the second anti-detachment strip 203 are arranged at intervals, and the first anti-detachment strip 202 is located at the end of the mounting portion 201b. The cross-sections of the first anti-detachment strip 202 and the second anti-detachment strip 203 are both circular, and the diameter of the cross-section of the first anti-detachment strip 202 is larger than the diameter of the cross-section of the second anti-detachment strip 203. The side wall of the guide groove 105a is provided with a first slot 105b that matches the first anti-detachment strip 202 and a second slot 105c that matches the second anti-detachment strip 203.

[0035] Specifically, in this configuration, the first anti-detachment strip 202 and the second anti-detachment strip 203 are respectively embedded in the first slot 105b and the second slot 105c, both of which play the role of preventing detachment. When the second anti-detachment strip 203 is separated from the second slot 105c, since the diameter of the second slot 105c is smaller than that of the first anti-detachment strip 202, the first anti-detachment strip 202 is squeezed and deformed after being pulled into the second slot 105c, resulting in a tighter connection and making it less likely to be pulled out.

[0036] Furthermore, the speed reduction plate 102 is a hollow, four-panel structure with a right-angled trapezoidal cross-section, saving materials. The side of the speed reduction plate 102 away from the mounting space H is an inclined side, that is, the side of the speed reduction plate 102 facing the direction of the car's movement is an inclined side, which facilitates the car to drive into or back out of the garage. Anti-slip strips 103 are provided on the inclined side to increase friction and prevent the car from slipping, ensuring that the car can drive into or back out of the garage normally. In addition, several reinforcing plates 104 arranged in an array are provided in the hollow cavity of the speed reduction plate 102 to increase the compressive strength and deformation resistance of the speed reduction plate 102.

[0037] Furthermore, a drainage channel 101a is provided at the top center of the base 101 along the length direction, and a number of guide holes 101b arranged in an array are provided on the side of the base 101 facing the outside of the garage along the length direction, and the guide holes 101b intersect with the drainage channel 101a. With this arrangement, some of the water that enters the mounting space H will be introduced into the drainage channel 101a and discharged out of the garage along the guide holes 101b, further demonstrating the device's ability to prevent water from entering the garage.

[0038] In summary, during use, the installation process should begin first. First, slide both sides of the sealing strip 201 into the corresponding guide groove 105a to complete the installation of the sealing strip 201 and the speed reducer 102. Second, slide the positioning plate 106 into the corresponding positioning groove 101c to complete the installation of the speed reducer 102 and the base 101. Finally, use anchor screws to fix the base 101 to the ground and fill the gaps with glue to complete the final installation.

[0039] When the roller shutter door is closed, the bottom end of the curtain panel is inserted into the mounting space H, squeezing the sealing strips 201 on both sides. Because the sealing strips 201 have the characteristic of elastic recovery, they can return to their original shape after being squeezed, thus tightly fitting with the curtain panel to achieve a seal and prevent water from flowing into the garage. Furthermore, during the process of the curtain panel squeezing the sealing strips 201, due to the action of the first anti-detachment strip 202 and the second anti-detachment strip 203, the sealing strips 201 will not be pulled out of the guide groove 105a due to the squeezing.

[0040] Example 2 Reference Figures 3-7 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the deceleration plate 102, the sealing strip 201, and the mounting strip 105 form an adjustment cavity M. A tensioning unit 300 is provided in the adjustment cavity M. The tensioning unit 300 can tension the sealing strip 201 inside the adjustment cavity M, so that the sealing strip 201 can fit more tightly with the curtain panel and ensure the sealing performance.

[0041] Furthermore, the tensioning unit 300 includes a tensioning bar 301 and a spring assembly 302 disposed between the tensioning bar 301 and the deceleration plate 102. The tensioning bar 301 is an arc-shaped bar that protrudes toward the sealing bar 201, and the middle part of the tensioning bar 301 is in contact with the inner wall of the sealing bar 201. There is a gap between the two ends of the tensioning bar 301 and the sealing bar 201.

[0042] Specifically, when the roller shutter door is closed, the bottom end of the curtain panel is inserted into the mounting space H, squeezing the sealing strip 201 and the tensioning strip 301. Under the elastic recovery of itself and the spring assembly 302, the tensioning strip 301 squeezes the other side of the sealing strip 201, thereby enabling the sealing strip 201 to fit tightly with the curtain panel and ensuring the sealing performance.

[0043] Furthermore, a plurality of arrayed stops 107 are fixedly connected to the side of the mounting strip 105 near the tensioning strip 301, with the end of the tensioning strip 301 abutting against the oblique side of the stops 107; a plurality of arrayed locking blocks 303 are provided on the side of the tensioning strip 301 that abuts against the stops 107, the locking blocks 303 fitting into the gap between two adjacent stops 107, and the sides of the locking blocks 303 away from the tensioning strip 301 are connected by a third anti-detachment strip 304, and the mounting strip 105 is further reinforced with a third anti-detachment strip 304. The side wall of the strip 105 is provided with a third slot 105d that is adapted to the third anti-detachment strip 304; by inserting the locking block 303 into the gap between the adjacent stop blocks 107, the installation of the tension strip 301 is completed. Through the cooperation between the third anti-detachment strip 304 and the third slot 105d, the locking block 303 can be prevented from detaching from the gap between the stop blocks 107 during the compression deformation of the tension strip 301, ensuring that both sides of the tension strip 301 are always on the installation strip 105.

[0044] In use, since a tensioning strip 301 is installed in the adjustment cavity M between the deceleration plate 102 and the sealing strip 201, when the roller shutter door is closed and the bottom end of the curtain panel is inserted into the mounting space H, the bottom end of the curtain panel will also squeeze the tensioning strip 301 at the same time. After being squeezed, the tensioning strip 301, under its own elastic recovery and the elastic recovery of the spring assembly 302, squeezes the other side of the sealing strip 201, so that the sealing strip 201 can fit the curtain panel more closely and further ensure the sealing performance.

[0045] The remaining structure is the same as that in Example 1.

[0046] Example 3 Reference Figures 8-11 The third embodiment of the present invention provides a garage roller shutter door, which provides security protection for the garage, protects the property inside the garage, prevents theft, and prevents damage to the facilities inside the garage. The roller shutter door body 400 includes a roller 401 installed on the top of the door frame and guide rails 402 symmetrically installed on both sides of the door frame and arranged vertically. A curtain 403 is rolled up outside the roller 401 and can slide and unfold along the guide rails 402.

[0047] Furthermore, it also includes a limiting mechanism 500, which is used to control the position of the roller shutter door when it is opened and closed, and to prevent the curtain panel 403 from being over-rolled or over-unrolled. The limiting mechanism 500 includes a fixed frame 501 set on the top of the guide rail 402, a limiting member 502 set on the fixed frame 501, and a protruding bar 503 set on the bottom of the curtain panel 403. The limiting member 502 is used to intercept the protruding bar 503. When the protruding bar 503 contacts the limiting member 502, the curtain panel 403 stops rolling.

[0048] Furthermore, the limiting member 502 includes a protective shell 502a and a hydraulic buffer 502b detachably connected to the fixing bracket 501 by screws, and a vertically arranged sliding rod 502c disposed between the protective shell 502a and the hydraulic buffer 502b. A positioning block 502d is fixedly connected to one side of the protective shell 502a. A through hole is provided at the top of the positioning block 502d, and the sliding rod 502c slides through the through hole. The piston rod of the hydraulic buffer 502b is vertically downward and connected to the bottom of the sliding rod 502c. When the roller shutter door opens... After starting, as the curtain panel 403 rolls up, the convex bar 503 rises and contacts the limiting member 502, pressing against the sliding rod 502c to move upward, pushing the piston rod of the hydraulic buffer 502b to retract. As the piston rod continues to retract, the hydraulic buffer 502b absorbs more energy, and the buffering effect is better, reducing the impact force brought about when the convex bar 503 rises and contacts the limiting member 502. This solves the problem of deformation and damage to the limiting member 502 caused by the impact of the convex bar 503 during long-term use, and extends the service life of the limiting member 502.

[0049] Furthermore, the limiting member 502 also includes a rotating shaft 502e arranged perpendicularly to the slide rod 502c. One end of the rotating shaft 502e extends into the protective shell 502a, and the other end of the rotating shaft 502e is fixedly sleeved with a first gear 502f. The rotating shaft 502e is rotatably connected to the protective shell 502a through a bearing. Both ends of the slide rod 502c are bent toward the side close to the rotating shaft 502e and fixedly connected with a vertical plate 502g. The side wall of the vertical plate 502g is provided with a first rack 502h that meshes with the first gear 502f.

[0050] A fixed cylinder 502k is sleeved on the outside of the rotating shaft 502e. One end of the fixed cylinder 502k is fixedly connected to a protective shell 502a, and the other end of the fixed cylinder 502k is movably sleeved with a second gear 502j. A second rack 502i that can mesh with the second gear 502j is also provided on the side wall of the vertical plate 502g. Among them, an arc-shaped groove 502j-1 is provided on the side of the second gear 502j close to the first gear 502f. The arc-shaped groove 502j-1 is concentric with the second gear 502j. A movable block 502l is slidably connected in the arc-shaped groove 502j-1. One end of the movable block 502l extending outside the arc-shaped groove 502j-1 is fixedly connected to the first gear 502f.

[0051] Specifically, one end of the arc-shaped groove 502j-1 is end A, and the other end is end B. When the convex rod 503 is not in contact with the limiting member 502, the movable block 502l is placed at end A of the arc-shaped groove 502j-1. The movable block 502l moves from end A to end B of the arc-shaped groove 502j-1, following the same rotation trajectory as the first gear 502f. The first rack 502h and the second rack 502i are arranged in parallel, and the starting end of the second rack 502i is lower than the first rack 502h. When the first rack 502h rises and meshes with the first gear 502f, driving the first gear 502f to rotate, and thus driving the movable block 502l to move from end A to end B of the arc-shaped groove 502j-1, the second rack 502i begins to mesh with the second gear 502j, driving the second gear 502j to rotate.

[0052] Furthermore, the protective housing 502a contains a first circuit 504 for controlling the lighting system inside the garage and a second circuit 505 for controlling the closing of the roller shutter door. A first contact piece 502m is provided on the outer wall of one end of the rotating shaft 502e located inside the protective housing 502a. The first contact piece 502m can be rotatably connected to the first circuit 504, thus connecting the first circuit 504. A connecting rod 502o is vertically fixed to the side of the second gear 502j near the protective housing 502a. The side plate of the protective housing 502a has an arc groove 502a-1 arranged concentrically with the second gear 502j. The end of the connecting rod 502o away from the second gear 502j passes through the arc groove 502a-1 and has a second contact piece 502n. The second contact piece 502n can be rotatably connected to the first circuit 504, thus connecting the second circuit 505.

[0053] Specifically, the first contact piece 502m and the second contact piece 502n are both rotatably connected to the first circuit 504 and the second circuit 505 respectively, thus activating the circuits. The first contact piece 502m is connected to the first gear 502f via the rotating shaft 502e, and the second contact piece 502n is connected to the second gear 502j via the connecting rod 502o. That is, when the first rack 502h meshes with the first gear 502f, it drives the rotating shaft 502e to rotate, thereby causing the first contact piece 502m to rotate synchronously. When the first rack 502h rises, it causes the second rack 502i to... When the second gear 502j begins to mesh, the first contact piece 502m connects to the first circuit 504, the lighting system in the garage is turned on to provide lighting for entry, the roller shutter continues to retract, pushing the slide bar 502c to continue to rise, the second gear 502j meshes with the second rack 502i for transmission, the connecting rod 502o rotates along the arc groove 502j-1, driving the second contact piece 502n to rotate synchronously, when the second contact piece 502n is connected to the second circuit 505, the roller shutter stops retracting, at this time, it is the opening height of the roller shutter, which is also the starting height of the curtain panel 403.

[0054] The remaining structure is the same as that in Example 2.

[0055] Working principle: This example provides a garage roller shutter door, which provides security protection for the garage. By installing a limiting member 502 on the top of the guide rail 402, which cooperates with the protruding rod 503 at the bottom of the curtain panel 403, the position of the roller shutter door when it is opened and closed is controlled, preventing the curtain panel 403 from being over-rolled or over-unrolled. At the same time, it is connected to the lighting system in the garage to control the on and off of the lights in the garage.

[0056] During use, when the roller shutter door is retracted, the protruding bar 503 contacts the limiting member 502, that is, the protruding bar 503 contacts the bottom of the sliding bar 502c, pushing the sliding bar 502c to rise. A hydraulic buffer 502b is connected to one side of the sliding bar 502c. As the sliding bar 502c rises, the piston rod of the hydraulic buffer 502b continuously contracts, and the hydraulic buffer 502b absorbs more energy, thereby reducing the impact force brought about by the contact between the protruding bar 503 and the sliding bar 502c, and extending the service life of the limiting member 502.

[0057] Simultaneously, as the slide bar 502c rises, the vertical plate 502g on one side of the slide bar 502c rises synchronously. The first rack 502h meshes with the first gear 502f, driving the rotating shaft 502e to rotate, causing the first contact piece 502m to rotate and connect with the first circuit 504. The lighting system in the garage is turned on, the lights in the garage are lit, and the movable block 502l moves from end A to end B of the arc groove 502j-1. As the slide bar 502c continues to rise, the second rack 502i meshes with the second gear 502j, driving the second contact piece 502n to rotate and connect with the second circuit 505. The roller shutter door stops rolling, and the curtain panel 403 stops rising. This is the open and closed position of the roller shutter door.

[0058] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0059] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A sealing device for the bottom of a garage door, characterized in that: include, The mounting unit (100) includes a base (101) and two speed reduction plates (102) symmetrically arranged on the top of the base (101), with a mounting space (H) between the two speed reduction plates (102); and, The sealing unit (200) has two sets and is symmetrically arranged in the mounting space (H). Each set of sealing units (200) includes a sealing strip (201), and the sealing strip (201) is made of elastic material. The speed reduction plate (102) is provided with two symmetrically arranged mounting strips (105) on one side of the mounting space (H), and the mounting strips (105) are provided with guide grooves (105a) along the length direction. The sealing strip (201) includes a sealing part (201a) that has an arc-shaped cross-section and performs a sealing function, and a snap-fit ​​part (201b) disposed on both sides of the sealing part (201a). The snap-fit ​​part (201b) can be slidably installed along the guide groove (105a). The tensioning unit (300) is disposed in the adjustment cavity (M) formed by the deceleration plate (102), the sealing strip (201), and the mounting strip (105). The tensioning unit (300) includes a tensioning strip (301) and a spring assembly (302) disposed between the tensioning strip (301) and the deceleration plate (102). The tensioning strip (301) is an arc-shaped strip that protrudes toward the sealing strip (201), and the middle part of the tensioning strip (301) is in contact with the inner wall of the sealing strip (201). There is a gap between the two ends of the tensioning strip (301) and the sealing strip (201). The mounting strip (105) is fixedly connected to a plurality of blocks (107) arranged in an array on the side near the tensioning strip (301), and the end of the tensioning strip (301) abuts against the oblique side of the block (107). The side of the tensioning strip (301) that abuts against the stop block (107) is provided with a plurality of locking blocks (303) arranged in an array. The locking blocks (303) are fitted into the gap between two adjacent stop blocks (107). The sides of the locking blocks (303) away from the tensioning strip (301) are connected by a third anti-detachment strip (304). The side wall of the mounting strip (105) is provided with a third locking groove (105d) that is adapted to the third anti-detachment strip (304).

2. The garage door bottom sealing device according to claim 1, characterized in that: The mounting part (201b) is provided with a first anti-detachment strip (202) and a second anti-detachment strip (203) along its length. The first anti-detachment strip (202) and the second anti-detachment strip (203) are arranged at intervals, and the first anti-detachment strip (202) is provided at the end of the mounting part (201b).

3. The garage door bottom sealing device according to claim 2, characterized in that: The first anti-detachment strip (202) and the second anti-detachment strip (203) both have circular cross-sections, and the diameter of the cross-section of the first anti-detachment strip (202) is larger than the diameter of the cross-section of the second anti-detachment strip (203).

4. The garage door bottom sealing device according to claim 3, characterized in that: The side wall of the guide groove (105a) is provided with a first slot (105b) adapted to the first anti-detachment strip (202) and a second slot (105c) adapted to the second anti-detachment strip (203).

5. The garage door bottom sealing device according to claim 4, characterized in that: The speed reduction plate (102) is a four-panel structure with a hollow interior and a right-angled trapezoidal cross section. The side of the speed reduction plate (102) away from the mounting space (H) is a sloping side, and an anti-slip strip (103) is provided on the sloping side. Furthermore, a number of reinforcing plates (104) arranged in an array are provided inside the hollow cavity of the speed reduction plate (102).

6. The garage door bottom sealing device according to claim 5, characterized in that: The base (101) has a drainage groove (101a) at the top center along the length direction. The base (101) has a number of flow guide holes (101b) arranged in an array along the length direction on the side facing the outside of the garage, and the flow guide holes (101b) intersect with the drainage groove (101a).

7. The garage door bottom sealing device according to any one of claims 1 to 6, characterized in that: The top of the base (101) is provided with two sets of symmetrically arranged positioning grooves (101c), and the bottom of the two speed reduction plates (102) is provided with positioning plates (106) that are compatible with the positioning grooves (101c). The positioning groove (101c) is convex in shape, and the positioning plate (106) can slide into the positioning groove (101c); The top of the base (101) is also provided with a through threaded mounting hole (101d), and the anchor screw passes through the threaded mounting hole (101d) to fix the base (101) to the ground.

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